xref: /vim-8.2.3635/src/option.c (revision 00a927d6)
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 #ifdef FEAT_QUICKFIX
60 # define PV_BH		OPT_BUF(BV_BH)
61 # define PV_BT		OPT_BUF(BV_BT)
62 # define PV_EFM		OPT_BOTH(OPT_BUF(BV_EFM))
63 # define PV_GP		OPT_BOTH(OPT_BUF(BV_GP))
64 # define PV_MP		OPT_BOTH(OPT_BUF(BV_MP))
65 #endif
66 #define PV_BIN		OPT_BUF(BV_BIN)
67 #define PV_BL		OPT_BUF(BV_BL)
68 #ifdef FEAT_MBYTE
69 # define PV_BOMB	OPT_BUF(BV_BOMB)
70 #endif
71 #define PV_CI		OPT_BUF(BV_CI)
72 #ifdef FEAT_CINDENT
73 # define PV_CIN		OPT_BUF(BV_CIN)
74 # define PV_CINK	OPT_BUF(BV_CINK)
75 # define PV_CINO	OPT_BUF(BV_CINO)
76 #endif
77 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
78 # define PV_CINW	OPT_BUF(BV_CINW)
79 #endif
80 #ifdef FEAT_FOLDING
81 # define PV_CMS		OPT_BUF(BV_CMS)
82 #endif
83 #ifdef FEAT_COMMENTS
84 # define PV_COM		OPT_BUF(BV_COM)
85 #endif
86 #ifdef FEAT_INS_EXPAND
87 # define PV_CPT		OPT_BUF(BV_CPT)
88 # define PV_DICT	OPT_BOTH(OPT_BUF(BV_DICT))
89 # define PV_TSR		OPT_BOTH(OPT_BUF(BV_TSR))
90 #endif
91 #ifdef FEAT_COMPL_FUNC
92 # define PV_CFU		OPT_BUF(BV_CFU)
93 #endif
94 #ifdef FEAT_FIND_ID
95 # define PV_DEF		OPT_BOTH(OPT_BUF(BV_DEF))
96 # define PV_INC		OPT_BOTH(OPT_BUF(BV_INC))
97 #endif
98 #define PV_EOL		OPT_BUF(BV_EOL)
99 #define PV_EP		OPT_BOTH(OPT_BUF(BV_EP))
100 #define PV_ET		OPT_BUF(BV_ET)
101 #ifdef FEAT_MBYTE
102 # define PV_FENC	OPT_BUF(BV_FENC)
103 #endif
104 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
105 # define PV_BEXPR	OPT_BOTH(OPT_BUF(BV_BEXPR))
106 #endif
107 #ifdef FEAT_EVAL
108 # define PV_FEX		OPT_BUF(BV_FEX)
109 #endif
110 #define PV_FF		OPT_BUF(BV_FF)
111 #define PV_FLP		OPT_BUF(BV_FLP)
112 #define PV_FO		OPT_BUF(BV_FO)
113 #ifdef FEAT_AUTOCMD
114 # define PV_FT		OPT_BUF(BV_FT)
115 #endif
116 #define PV_IMI		OPT_BUF(BV_IMI)
117 #define PV_IMS		OPT_BUF(BV_IMS)
118 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
119 # define PV_INDE	OPT_BUF(BV_INDE)
120 # define PV_INDK	OPT_BUF(BV_INDK)
121 #endif
122 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
123 # define PV_INEX	OPT_BUF(BV_INEX)
124 #endif
125 #define PV_INF		OPT_BUF(BV_INF)
126 #define PV_ISK		OPT_BUF(BV_ISK)
127 #ifdef FEAT_CRYPT
128 # define PV_KEY		OPT_BUF(BV_KEY)
129 #endif
130 #ifdef FEAT_KEYMAP
131 # define PV_KMAP	OPT_BUF(BV_KMAP)
132 #endif
133 #define PV_KP		OPT_BOTH(OPT_BUF(BV_KP))
134 #ifdef FEAT_LISP
135 # define PV_LISP	OPT_BUF(BV_LISP)
136 #endif
137 #define PV_MA		OPT_BUF(BV_MA)
138 #define PV_ML		OPT_BUF(BV_ML)
139 #define PV_MOD		OPT_BUF(BV_MOD)
140 #define PV_MPS		OPT_BUF(BV_MPS)
141 #define PV_NF		OPT_BUF(BV_NF)
142 #ifdef FEAT_OSFILETYPE
143 # define PV_OFT		OPT_BUF(BV_OFT)
144 #endif
145 #ifdef FEAT_COMPL_FUNC
146 # define PV_OFU		OPT_BUF(BV_OFU)
147 #endif
148 #define PV_PATH		OPT_BOTH(OPT_BUF(BV_PATH))
149 #define PV_PI		OPT_BUF(BV_PI)
150 #ifdef FEAT_TEXTOBJ
151 # define PV_QE		OPT_BUF(BV_QE)
152 #endif
153 #define PV_RO		OPT_BUF(BV_RO)
154 #ifdef FEAT_SMARTINDENT
155 # define PV_SI		OPT_BUF(BV_SI)
156 #endif
157 #ifndef SHORT_FNAME
158 # define PV_SN		OPT_BUF(BV_SN)
159 #endif
160 #ifdef FEAT_SYN_HL
161 # define PV_SMC		OPT_BUF(BV_SMC)
162 # define PV_SYN		OPT_BUF(BV_SYN)
163 #endif
164 #ifdef FEAT_SPELL
165 # define PV_SPC		OPT_BUF(BV_SPC)
166 # define PV_SPF		OPT_BUF(BV_SPF)
167 # define PV_SPL		OPT_BUF(BV_SPL)
168 #endif
169 #define PV_STS		OPT_BUF(BV_STS)
170 #ifdef FEAT_SEARCHPATH
171 # define PV_SUA		OPT_BUF(BV_SUA)
172 #endif
173 #define PV_SW		OPT_BUF(BV_SW)
174 #define PV_SWF		OPT_BUF(BV_SWF)
175 #define PV_TAGS		OPT_BOTH(OPT_BUF(BV_TAGS))
176 #define PV_TS		OPT_BUF(BV_TS)
177 #define PV_TW		OPT_BUF(BV_TW)
178 #define PV_TX		OPT_BUF(BV_TX)
179 #define PV_WM		OPT_BUF(BV_WM)
180 
181 /*
182  * Definition of the PV_ values for window-local options.
183  * The WV_ values are defined in option.h.
184  */
185 #define PV_LIST		OPT_WIN(WV_LIST)
186 #ifdef FEAT_ARABIC
187 # define PV_ARAB	OPT_WIN(WV_ARAB)
188 #endif
189 #ifdef FEAT_DIFF
190 # define PV_DIFF	OPT_WIN(WV_DIFF)
191 #endif
192 #ifdef FEAT_FOLDING
193 # define PV_FDC		OPT_WIN(WV_FDC)
194 # define PV_FEN		OPT_WIN(WV_FEN)
195 # define PV_FDI		OPT_WIN(WV_FDI)
196 # define PV_FDL		OPT_WIN(WV_FDL)
197 # define PV_FDM		OPT_WIN(WV_FDM)
198 # define PV_FML		OPT_WIN(WV_FML)
199 # define PV_FDN		OPT_WIN(WV_FDN)
200 # ifdef FEAT_EVAL
201 #  define PV_FDE	OPT_WIN(WV_FDE)
202 #  define PV_FDT	OPT_WIN(WV_FDT)
203 # endif
204 # define PV_FMR		OPT_WIN(WV_FMR)
205 #endif
206 #ifdef FEAT_LINEBREAK
207 # define PV_LBR		OPT_WIN(WV_LBR)
208 #endif
209 #define PV_NU		OPT_WIN(WV_NU)
210 #ifdef FEAT_LINEBREAK
211 # define PV_NUW		OPT_WIN(WV_NUW)
212 #endif
213 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
214 # define PV_PVW		OPT_WIN(WV_PVW)
215 #endif
216 #ifdef FEAT_RIGHTLEFT
217 # define PV_RL		OPT_WIN(WV_RL)
218 # define PV_RLC		OPT_WIN(WV_RLC)
219 #endif
220 #ifdef FEAT_SCROLLBIND
221 # define PV_SCBIND	OPT_WIN(WV_SCBIND)
222 #endif
223 #define PV_SCROLL	OPT_WIN(WV_SCROLL)
224 #ifdef FEAT_SPELL
225 # define PV_SPELL	OPT_WIN(WV_SPELL)
226 #endif
227 #ifdef FEAT_SYN_HL
228 # define PV_CUC		OPT_WIN(WV_CUC)
229 # define PV_CUL		OPT_WIN(WV_CUL)
230 #endif
231 #ifdef FEAT_STL_OPT
232 # define PV_STL		OPT_BOTH(OPT_WIN(WV_STL))
233 #endif
234 #ifdef FEAT_WINDOWS
235 # define PV_WFH		OPT_WIN(WV_WFH)
236 #endif
237 #ifdef FEAT_VERTSPLIT
238 # define PV_WFW		OPT_WIN(WV_WFW)
239 #endif
240 #define PV_WRAP		OPT_WIN(WV_WRAP)
241 
242 
243 /* WV_ and BV_ values get typecasted to this for the "indir" field */
244 typedef enum
245 {
246     PV_NONE = 0,
247     PV_MAXVAL = 0xffff    /* to avoid warnings for value out of range */
248 } idopt_T;
249 
250 /*
251  * Options local to a window have a value local to a buffer and global to all
252  * buffers.  Indicate this by setting "var" to VAR_WIN.
253  */
254 #define VAR_WIN ((char_u *)-1)
255 
256 /*
257  * These are the global values for options which are also local to a buffer.
258  * Only to be used in option.c!
259  */
260 static int	p_ai;
261 static int	p_bin;
262 #ifdef FEAT_MBYTE
263 static int	p_bomb;
264 #endif
265 #if defined(FEAT_QUICKFIX)
266 static char_u	*p_bh;
267 static char_u	*p_bt;
268 #endif
269 static int	p_bl;
270 static int	p_ci;
271 #ifdef FEAT_CINDENT
272 static int	p_cin;
273 static char_u	*p_cink;
274 static char_u	*p_cino;
275 #endif
276 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
277 static char_u	*p_cinw;
278 #endif
279 #ifdef FEAT_COMMENTS
280 static char_u	*p_com;
281 #endif
282 #ifdef FEAT_FOLDING
283 static char_u	*p_cms;
284 #endif
285 #ifdef FEAT_INS_EXPAND
286 static char_u	*p_cpt;
287 #endif
288 #ifdef FEAT_COMPL_FUNC
289 static char_u	*p_cfu;
290 static char_u	*p_ofu;
291 #endif
292 static int	p_eol;
293 static int	p_et;
294 #ifdef FEAT_MBYTE
295 static char_u	*p_fenc;
296 #endif
297 static char_u	*p_ff;
298 static char_u	*p_fo;
299 static char_u	*p_flp;
300 #ifdef FEAT_AUTOCMD
301 static char_u	*p_ft;
302 #endif
303 static long	p_iminsert;
304 static long	p_imsearch;
305 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
306 static char_u	*p_inex;
307 #endif
308 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
309 static char_u	*p_inde;
310 static char_u	*p_indk;
311 #endif
312 #if defined(FEAT_EVAL)
313 static char_u	*p_fex;
314 #endif
315 static int	p_inf;
316 static char_u	*p_isk;
317 #ifdef FEAT_CRYPT
318 static char_u	*p_key;
319 #endif
320 #ifdef FEAT_LISP
321 static int	p_lisp;
322 #endif
323 static int	p_ml;
324 static int	p_ma;
325 static int	p_mod;
326 static char_u	*p_mps;
327 static char_u	*p_nf;
328 #ifdef FEAT_OSFILETYPE
329 static char_u	*p_oft;
330 #endif
331 static int	p_pi;
332 #ifdef FEAT_TEXTOBJ
333 static char_u	*p_qe;
334 #endif
335 static int	p_ro;
336 #ifdef FEAT_SMARTINDENT
337 static int	p_si;
338 #endif
339 #ifndef SHORT_FNAME
340 static int	p_sn;
341 #endif
342 static long	p_sts;
343 #if defined(FEAT_SEARCHPATH)
344 static char_u	*p_sua;
345 #endif
346 static long	p_sw;
347 static int	p_swf;
348 #ifdef FEAT_SYN_HL
349 static long	p_smc;
350 static char_u	*p_syn;
351 #endif
352 #ifdef FEAT_SPELL
353 static char_u	*p_spc;
354 static char_u	*p_spf;
355 static char_u	*p_spl;
356 #endif
357 static long	p_ts;
358 static long	p_tw;
359 static int	p_tx;
360 static long	p_wm;
361 #ifdef FEAT_KEYMAP
362 static char_u	*p_keymap;
363 #endif
364 
365 /* Saved values for when 'bin' is set. */
366 static int	p_et_nobin;
367 static int	p_ml_nobin;
368 static long	p_tw_nobin;
369 static long	p_wm_nobin;
370 
371 /* Saved values for when 'paste' is set */
372 static long	p_tw_nopaste;
373 static long	p_wm_nopaste;
374 static long	p_sts_nopaste;
375 static int	p_ai_nopaste;
376 
377 struct vimoption
378 {
379     char	*fullname;	/* full option name */
380     char	*shortname;	/* permissible abbreviation */
381     long_u	flags;		/* see below */
382     char_u	*var;		/* global option: pointer to variable;
383 				 * window-local option: VAR_WIN;
384 				 * buffer-local option: global value */
385     idopt_T	indir;		/* global option: PV_NONE;
386 				 * local option: indirect option index */
387     char_u	*def_val[2];	/* default values for variable (vi and vim) */
388 #ifdef FEAT_EVAL
389     scid_T	scriptID;	/* script in which the option was last set */
390 # define SCRIPTID_INIT , 0
391 #else
392 # define SCRIPTID_INIT
393 #endif
394 };
395 
396 #define VI_DEFAULT  0	    /* def_val[VI_DEFAULT] is Vi default value */
397 #define VIM_DEFAULT 1	    /* def_val[VIM_DEFAULT] is Vim default value */
398 
399 /*
400  * Flags
401  */
402 #define P_BOOL		0x01	/* the option is boolean */
403 #define P_NUM		0x02	/* the option is numeric */
404 #define P_STRING	0x04	/* the option is a string */
405 #define P_ALLOCED	0x08	/* the string option is in allocated memory,
406 				   must use free_string_option() when
407 				   assigning new value. Not set if default is
408 				   the same. */
409 #define P_EXPAND	0x10	/* environment expansion.  NOTE: P_EXPAND can
410 				   never be used for local or hidden options! */
411 #define P_NODEFAULT	0x40	/* don't set to default value */
412 #define P_DEF_ALLOCED	0x80	/* default value is in allocated memory, must
413 				    use vim_free() when assigning new value */
414 #define P_WAS_SET	0x100	/* option has been set/reset */
415 #define P_NO_MKRC	0x200	/* don't include in :mkvimrc output */
416 #define P_VI_DEF	0x400	/* Use Vi default for Vim */
417 #define P_VIM		0x800	/* Vim option, reset when 'cp' set */
418 
419 				/* when option changed, what to display: */
420 #define P_RSTAT		0x1000	/* redraw status lines */
421 #define P_RWIN		0x2000	/* redraw current window */
422 #define P_RBUF		0x4000	/* redraw current buffer */
423 #define P_RALL		0x6000	/* redraw all windows */
424 #define P_RCLR		0x7000	/* clear and redraw all */
425 
426 #define P_COMMA		0x8000	/* comma separated list */
427 #define P_NODUP		0x10000L/* don't allow duplicate strings */
428 #define P_FLAGLIST	0x20000L/* list of single-char flags */
429 
430 #define P_SECURE	0x40000L/* cannot change in modeline or secure mode */
431 #define P_GETTEXT	0x80000L/* expand default value with _() */
432 #define P_NOGLOB       0x100000L/* do not use local value for global vimrc */
433 #define P_NFNAME       0x200000L/* only normal file name chars allowed */
434 #define P_INSECURE     0x400000L/* option was set from a modeline */
435 #define P_PRI_MKRC     0x800000L/* priority for :mkvimrc (setting option has
436 				   side effects) */
437 
438 #define ISK_LATIN1  (char_u *)"@,48-57,_,192-255"
439 
440 /* 'isprint' for latin1 is also used for MS-Windows cp1252, where 0x80 is used
441  * for the currency sign. */
442 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
443 # define ISP_LATIN1 (char_u *)"@,~-255"
444 #else
445 # define ISP_LATIN1 (char_u *)"@,161-255"
446 #endif
447 
448 /* The 16 bit MS-DOS version is low on space, make the string as short as
449  * possible when compiling with few features. */
450 #if defined(FEAT_DIFF) || defined(FEAT_FOLDING) || defined(FEAT_SPELL) \
451 	|| defined(FEAT_VERTSPLIT) || defined(FEAT_CLIPBOARD) \
452 	|| defined(FEAT_INS_EXPAND) || defined(FEAT_SYN_HL)
453 # define HIGHLIGHT_INIT "8:SpecialKey,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,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,B:SpellBad,P:SpellCap,R:SpellRare,L:SpellLocal,+:Pmenu,=:PmenuSel,x:PmenuSbar,X:PmenuThumb,*:TabLine,#:TabLineSel,_:TabLineFill,!:CursorColumn,.:CursorLine"
454 #else
455 # define HIGHLIGHT_INIT "8:SpecialKey,@:NonText,d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr,r:Question,s:StatusLine,S:StatusLineNC,t:Title,v:Visual,w:WarningMsg,W:WildMenu,>:SignColumn,*:TabLine,#:TabLineSel,_:TabLineFill"
456 #endif
457 
458 /*
459  * options[] is initialized here.
460  * The order of the options MUST be alphabetic for ":set all" and findoption().
461  * All option names MUST start with a lowercase letter (for findoption()).
462  * Exception: "t_" options are at the end.
463  * The options with a NULL variable are 'hidden': a set command for them is
464  * ignored and they are not printed.
465  */
466 static struct vimoption
467 #ifdef FEAT_GUI_W16
468 	_far
469 #endif
470 	options[] =
471 {
472     {"aleph",	    "al",   P_NUM|P_VI_DEF,
473 #ifdef FEAT_RIGHTLEFT
474 			    (char_u *)&p_aleph, PV_NONE,
475 #else
476 			    (char_u *)NULL, PV_NONE,
477 #endif
478 			    {
479 #if (defined(MSDOS) || defined(WIN3264) || defined(OS2)) && !defined(FEAT_GUI_W32)
480 			    (char_u *)128L,
481 #else
482 			    (char_u *)224L,
483 #endif
484 					    (char_u *)0L} SCRIPTID_INIT},
485     {"antialias",   "anti", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
486 #if defined(FEAT_GUI) && defined(MACOS_X)
487 			    (char_u *)&p_antialias, PV_NONE,
488 			    {(char_u *)FALSE, (char_u *)FALSE}
489 #else
490 			    (char_u *)NULL, PV_NONE,
491 			    {(char_u *)FALSE, (char_u *)FALSE}
492 #endif
493 			    SCRIPTID_INIT},
494     {"arabic",	    "arab", P_BOOL|P_VI_DEF|P_VIM,
495 #ifdef FEAT_ARABIC
496 			    (char_u *)VAR_WIN, PV_ARAB,
497 #else
498 			    (char_u *)NULL, PV_NONE,
499 #endif
500 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
501     {"arabicshape", "arshape", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
502 #ifdef FEAT_ARABIC
503 			    (char_u *)&p_arshape, PV_NONE,
504 #else
505 			    (char_u *)NULL, PV_NONE,
506 #endif
507 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
508     {"allowrevins", "ari",  P_BOOL|P_VI_DEF|P_VIM,
509 #ifdef FEAT_RIGHTLEFT
510 			    (char_u *)&p_ari, PV_NONE,
511 #else
512 			    (char_u *)NULL, PV_NONE,
513 #endif
514 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
515     {"altkeymap",   "akm",  P_BOOL|P_VI_DEF,
516 #ifdef FEAT_FKMAP
517 			    (char_u *)&p_altkeymap, PV_NONE,
518 #else
519 			    (char_u *)NULL, PV_NONE,
520 #endif
521 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
522     {"ambiwidth",  "ambw",  P_STRING|P_VI_DEF|P_RCLR,
523 #if defined(FEAT_MBYTE)
524 			    (char_u *)&p_ambw, PV_NONE,
525 			    {(char_u *)"single", (char_u *)0L}
526 #else
527 			    (char_u *)NULL, PV_NONE,
528 			    {(char_u *)0L, (char_u *)0L}
529 #endif
530 			    SCRIPTID_INIT},
531 #ifdef FEAT_AUTOCHDIR
532     {"autochdir",  "acd",   P_BOOL|P_VI_DEF,
533 			    (char_u *)&p_acd, PV_NONE,
534 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
535 #endif
536     {"autoindent",  "ai",   P_BOOL|P_VI_DEF,
537 			    (char_u *)&p_ai, PV_AI,
538 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
539     {"autoprint",   "ap",   P_BOOL|P_VI_DEF,
540 			    (char_u *)NULL, PV_NONE,
541 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
542     {"autoread",    "ar",   P_BOOL|P_VI_DEF,
543 			    (char_u *)&p_ar, PV_AR,
544 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
545     {"autowrite",   "aw",   P_BOOL|P_VI_DEF,
546 			    (char_u *)&p_aw, PV_NONE,
547 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
548     {"autowriteall","awa",  P_BOOL|P_VI_DEF,
549 			    (char_u *)&p_awa, PV_NONE,
550 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
551     {"background",  "bg",   P_STRING|P_VI_DEF|P_RCLR,
552 			    (char_u *)&p_bg, PV_NONE,
553 			    {
554 #if (defined(MSDOS) || defined(OS2) || defined(WIN3264)) && !defined(FEAT_GUI)
555 			    (char_u *)"dark",
556 #else
557 			    (char_u *)"light",
558 #endif
559 					    (char_u *)0L} SCRIPTID_INIT},
560     {"backspace",   "bs",   P_STRING|P_VI_DEF|P_VIM|P_COMMA|P_NODUP,
561 			    (char_u *)&p_bs, PV_NONE,
562 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
563     {"backup",	    "bk",   P_BOOL|P_VI_DEF|P_VIM,
564 			    (char_u *)&p_bk, PV_NONE,
565 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
566     {"backupcopy",  "bkc",  P_STRING|P_VIM|P_COMMA|P_NODUP,
567 			    (char_u *)&p_bkc, PV_NONE,
568 #ifdef UNIX
569 			    {(char_u *)"yes", (char_u *)"auto"}
570 #else
571 			    {(char_u *)"auto", (char_u *)"auto"}
572 #endif
573 			    SCRIPTID_INIT},
574     {"backupdir",   "bdir", P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP|P_SECURE,
575 			    (char_u *)&p_bdir, PV_NONE,
576 			    {(char_u *)DFLT_BDIR, (char_u *)0L} SCRIPTID_INIT},
577     {"backupext",   "bex",  P_STRING|P_VI_DEF|P_NFNAME,
578 			    (char_u *)&p_bex, PV_NONE,
579 			    {
580 #ifdef VMS
581 			    (char_u *)"_",
582 #else
583 			    (char_u *)"~",
584 #endif
585 					    (char_u *)0L} SCRIPTID_INIT},
586     {"backupskip",  "bsk",  P_STRING|P_VI_DEF|P_COMMA,
587 #ifdef FEAT_WILDIGN
588 			    (char_u *)&p_bsk, PV_NONE,
589 			    {(char_u *)"", (char_u *)0L}
590 #else
591 			    (char_u *)NULL, PV_NONE,
592 			    {(char_u *)0L, (char_u *)0L}
593 #endif
594 			    SCRIPTID_INIT},
595 #ifdef FEAT_BEVAL
596     {"balloondelay","bdlay",P_NUM|P_VI_DEF,
597 			    (char_u *)&p_bdlay, PV_NONE,
598 			    {(char_u *)600L, (char_u *)0L} SCRIPTID_INIT},
599     {"ballooneval", "beval",P_BOOL|P_VI_DEF|P_NO_MKRC,
600 			    (char_u *)&p_beval, PV_NONE,
601 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
602 # ifdef FEAT_EVAL
603     {"balloonexpr", "bexpr", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
604 			    (char_u *)&p_bexpr, PV_BEXPR,
605 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
606 # endif
607 #endif
608     {"beautify",    "bf",   P_BOOL|P_VI_DEF,
609 			    (char_u *)NULL, PV_NONE,
610 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
611     {"binary",	    "bin",  P_BOOL|P_VI_DEF|P_RSTAT,
612 			    (char_u *)&p_bin, PV_BIN,
613 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
614     {"bioskey",	    "biosk",P_BOOL|P_VI_DEF,
615 #ifdef MSDOS
616 			    (char_u *)&p_biosk, PV_NONE,
617 #else
618 			    (char_u *)NULL, PV_NONE,
619 #endif
620 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
621     {"bomb",	    NULL,   P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
622 #ifdef FEAT_MBYTE
623 			    (char_u *)&p_bomb, PV_BOMB,
624 #else
625 			    (char_u *)NULL, PV_NONE,
626 #endif
627 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
628     {"breakat",	    "brk",  P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
629 #ifdef FEAT_LINEBREAK
630 			    (char_u *)&p_breakat, PV_NONE,
631 			    {(char_u *)" \t!@*-+;:,./?", (char_u *)0L}
632 #else
633 			    (char_u *)NULL, PV_NONE,
634 			    {(char_u *)0L, (char_u *)0L}
635 #endif
636 			    SCRIPTID_INIT},
637     {"browsedir",   "bsdir",P_STRING|P_VI_DEF,
638 #ifdef FEAT_BROWSE
639 			    (char_u *)&p_bsdir, PV_NONE,
640 			    {(char_u *)"last", (char_u *)0L}
641 #else
642 			    (char_u *)NULL, PV_NONE,
643 			    {(char_u *)0L, (char_u *)0L}
644 #endif
645 			    SCRIPTID_INIT},
646     {"bufhidden",   "bh",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
647 #if defined(FEAT_QUICKFIX)
648 			    (char_u *)&p_bh, PV_BH,
649 			    {(char_u *)"", (char_u *)0L}
650 #else
651 			    (char_u *)NULL, PV_NONE,
652 			    {(char_u *)0L, (char_u *)0L}
653 #endif
654 			    SCRIPTID_INIT},
655     {"buflisted",   "bl",   P_BOOL|P_VI_DEF|P_NOGLOB,
656 			    (char_u *)&p_bl, PV_BL,
657 			    {(char_u *)1L, (char_u *)0L}
658 			    SCRIPTID_INIT},
659     {"buftype",	    "bt",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
660 #if defined(FEAT_QUICKFIX)
661 			    (char_u *)&p_bt, PV_BT,
662 			    {(char_u *)"", (char_u *)0L}
663 #else
664 			    (char_u *)NULL, PV_NONE,
665 			    {(char_u *)0L, (char_u *)0L}
666 #endif
667 			    SCRIPTID_INIT},
668     {"casemap",	    "cmp",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
669 #ifdef FEAT_MBYTE
670 			    (char_u *)&p_cmp, PV_NONE,
671 			    {(char_u *)"internal,keepascii", (char_u *)0L}
672 #else
673 			    (char_u *)NULL, PV_NONE,
674 			    {(char_u *)0L, (char_u *)0L}
675 #endif
676 			    SCRIPTID_INIT},
677     {"cdpath",	    "cd",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
678 #ifdef FEAT_SEARCHPATH
679 			    (char_u *)&p_cdpath, PV_NONE,
680 			    {(char_u *)",,", (char_u *)0L}
681 #else
682 			    (char_u *)NULL, PV_NONE,
683 			    {(char_u *)0L, (char_u *)0L}
684 #endif
685 			    SCRIPTID_INIT},
686     {"cedit",	    NULL,   P_STRING,
687 #ifdef FEAT_CMDWIN
688 			    (char_u *)&p_cedit, PV_NONE,
689 			    {(char_u *)"", (char_u *)CTRL_F_STR}
690 #else
691 			    (char_u *)NULL, PV_NONE,
692 			    {(char_u *)0L, (char_u *)0L}
693 #endif
694 			    SCRIPTID_INIT},
695     {"charconvert",  "ccv", P_STRING|P_VI_DEF|P_SECURE,
696 #if defined(FEAT_MBYTE) && defined(FEAT_EVAL)
697 			    (char_u *)&p_ccv, PV_NONE,
698 			    {(char_u *)"", (char_u *)0L}
699 #else
700 			    (char_u *)NULL, PV_NONE,
701 			    {(char_u *)0L, (char_u *)0L}
702 #endif
703 			    SCRIPTID_INIT},
704     {"cindent",	    "cin",  P_BOOL|P_VI_DEF|P_VIM,
705 #ifdef FEAT_CINDENT
706 			    (char_u *)&p_cin, PV_CIN,
707 #else
708 			    (char_u *)NULL, PV_NONE,
709 #endif
710 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
711     {"cinkeys",	    "cink", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
712 #ifdef FEAT_CINDENT
713 			    (char_u *)&p_cink, PV_CINK,
714 			    {(char_u *)"0{,0},0),:,0#,!^F,o,O,e", (char_u *)0L}
715 #else
716 			    (char_u *)NULL, PV_NONE,
717 			    {(char_u *)0L, (char_u *)0L}
718 #endif
719 			    SCRIPTID_INIT},
720     {"cinoptions",  "cino", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
721 #ifdef FEAT_CINDENT
722 			    (char_u *)&p_cino, PV_CINO,
723 #else
724 			    (char_u *)NULL, PV_NONE,
725 #endif
726 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
727     {"cinwords",    "cinw", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
728 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
729 			    (char_u *)&p_cinw, PV_CINW,
730 			    {(char_u *)"if,else,while,do,for,switch",
731 				(char_u *)0L}
732 #else
733 			    (char_u *)NULL, PV_NONE,
734 			    {(char_u *)0L, (char_u *)0L}
735 #endif
736 			    SCRIPTID_INIT},
737     {"clipboard",   "cb",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
738 #ifdef FEAT_CLIPBOARD
739 			    (char_u *)&p_cb, PV_NONE,
740 # ifdef FEAT_XCLIPBOARD
741 			    {(char_u *)"autoselect,exclude:cons\\|linux",
742 							       (char_u *)0L}
743 # else
744 			    {(char_u *)"", (char_u *)0L}
745 # endif
746 #else
747 			    (char_u *)NULL, PV_NONE,
748 			    {(char_u *)"", (char_u *)0L}
749 #endif
750 			    SCRIPTID_INIT},
751     {"cmdheight",   "ch",   P_NUM|P_VI_DEF|P_RALL,
752 			    (char_u *)&p_ch, PV_NONE,
753 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
754     {"cmdwinheight", "cwh", P_NUM|P_VI_DEF,
755 #ifdef FEAT_CMDWIN
756 			    (char_u *)&p_cwh, PV_NONE,
757 #else
758 			    (char_u *)NULL, PV_NONE,
759 #endif
760 			    {(char_u *)7L, (char_u *)0L} SCRIPTID_INIT},
761     {"columns",	    "co",   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
762 			    (char_u *)&Columns, PV_NONE,
763 			    {(char_u *)80L, (char_u *)0L} SCRIPTID_INIT},
764     {"comments",    "com",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
765 #ifdef FEAT_COMMENTS
766 			    (char_u *)&p_com, PV_COM,
767 			    {(char_u *)"s1:/*,mb:*,ex:*/,://,b:#,:%,:XCOMM,n:>,fb:-",
768 				(char_u *)0L}
769 #else
770 			    (char_u *)NULL, PV_NONE,
771 			    {(char_u *)0L, (char_u *)0L}
772 #endif
773 			    SCRIPTID_INIT},
774     {"commentstring", "cms", P_STRING|P_ALLOCED|P_VI_DEF,
775 #ifdef FEAT_FOLDING
776 			    (char_u *)&p_cms, PV_CMS,
777 			    {(char_u *)"/*%s*/", (char_u *)0L}
778 #else
779 			    (char_u *)NULL, PV_NONE,
780 			    {(char_u *)0L, (char_u *)0L}
781 #endif
782 			    SCRIPTID_INIT},
783 			    /* P_PRI_MKRC isn't needed here, optval_default()
784 			     * always returns TRUE for 'compatible' */
785     {"compatible",  "cp",   P_BOOL|P_RALL,
786 			    (char_u *)&p_cp, PV_NONE,
787 			    {(char_u *)TRUE, (char_u *)FALSE} SCRIPTID_INIT},
788     {"complete",    "cpt",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
789 #ifdef FEAT_INS_EXPAND
790 			    (char_u *)&p_cpt, PV_CPT,
791 			    {(char_u *)".,w,b,u,t,i", (char_u *)0L}
792 #else
793 			    (char_u *)NULL, PV_NONE,
794 			    {(char_u *)0L, (char_u *)0L}
795 #endif
796 			    SCRIPTID_INIT},
797     {"completefunc", "cfu", P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
798 #ifdef FEAT_COMPL_FUNC
799 			    (char_u *)&p_cfu, PV_CFU,
800 			    {(char_u *)"", (char_u *)0L}
801 #else
802 			    (char_u *)NULL, PV_NONE,
803 			    {(char_u *)0L, (char_u *)0L}
804 #endif
805 			    SCRIPTID_INIT},
806     {"completeopt",   "cot",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
807 #ifdef FEAT_INS_EXPAND
808 			    (char_u *)&p_cot, PV_NONE,
809 			    {(char_u *)"menu,preview", (char_u *)0L}
810 #else
811 			    (char_u *)NULL, PV_NONE,
812 			    {(char_u *)0L, (char_u *)0L}
813 #endif
814 			    SCRIPTID_INIT},
815     {"confirm",     "cf",   P_BOOL|P_VI_DEF,
816 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
817 			    (char_u *)&p_confirm, PV_NONE,
818 #else
819 			    (char_u *)NULL, PV_NONE,
820 #endif
821 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
822     {"conskey",	    "consk",P_BOOL|P_VI_DEF,
823 #ifdef MSDOS
824 			    (char_u *)&p_consk, PV_NONE,
825 #else
826 			    (char_u *)NULL, PV_NONE,
827 #endif
828 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
829     {"copyindent",  "ci",   P_BOOL|P_VI_DEF|P_VIM,
830 			    (char_u *)&p_ci, PV_CI,
831 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
832     {"cpoptions",   "cpo",  P_STRING|P_VIM|P_RALL|P_FLAGLIST,
833 			    (char_u *)&p_cpo, PV_NONE,
834 			    {(char_u *)CPO_VI, (char_u *)CPO_VIM}
835 			    SCRIPTID_INIT},
836     {"cscopepathcomp", "cspc", P_NUM|P_VI_DEF|P_VIM,
837 #ifdef FEAT_CSCOPE
838 			    (char_u *)&p_cspc, PV_NONE,
839 #else
840 			    (char_u *)NULL, PV_NONE,
841 #endif
842 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
843     {"cscopeprg",   "csprg", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
844 #ifdef FEAT_CSCOPE
845 			    (char_u *)&p_csprg, PV_NONE,
846 			    {(char_u *)"cscope", (char_u *)0L}
847 #else
848 			    (char_u *)NULL, PV_NONE,
849 			    {(char_u *)0L, (char_u *)0L}
850 #endif
851 			    SCRIPTID_INIT},
852     {"cscopequickfix", "csqf", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
853 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
854 			    (char_u *)&p_csqf, PV_NONE,
855 			    {(char_u *)"", (char_u *)0L}
856 #else
857 			    (char_u *)NULL, PV_NONE,
858 			    {(char_u *)0L, (char_u *)0L}
859 #endif
860 			    SCRIPTID_INIT},
861     {"cscopetag",   "cst",  P_BOOL|P_VI_DEF|P_VIM,
862 #ifdef FEAT_CSCOPE
863 			    (char_u *)&p_cst, PV_NONE,
864 #else
865 			    (char_u *)NULL, PV_NONE,
866 #endif
867 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
868     {"cscopetagorder", "csto", P_NUM|P_VI_DEF|P_VIM,
869 #ifdef FEAT_CSCOPE
870 			    (char_u *)&p_csto, PV_NONE,
871 #else
872 			    (char_u *)NULL, PV_NONE,
873 #endif
874 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
875     {"cscopeverbose", "csverb", P_BOOL|P_VI_DEF|P_VIM,
876 #ifdef FEAT_CSCOPE
877 			    (char_u *)&p_csverbose, PV_NONE,
878 #else
879 			    (char_u *)NULL, PV_NONE,
880 #endif
881 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
882     {"cursorcolumn", "cuc", P_BOOL|P_VI_DEF|P_RWIN,
883 #ifdef FEAT_SYN_HL
884 			    (char_u *)VAR_WIN, PV_CUC,
885 #else
886 			    (char_u *)NULL, PV_NONE,
887 #endif
888 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
889     {"cursorline",   "cul", P_BOOL|P_VI_DEF|P_RWIN,
890 #ifdef FEAT_SYN_HL
891 			    (char_u *)VAR_WIN, PV_CUL,
892 #else
893 			    (char_u *)NULL, PV_NONE,
894 #endif
895 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
896     {"debug",	    NULL,   P_STRING|P_VI_DEF,
897 			    (char_u *)&p_debug, PV_NONE,
898 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
899     {"define",	    "def",  P_STRING|P_ALLOCED|P_VI_DEF,
900 #ifdef FEAT_FIND_ID
901 			    (char_u *)&p_def, PV_DEF,
902 			    {(char_u *)"^\\s*#\\s*define", (char_u *)0L}
903 #else
904 			    (char_u *)NULL, PV_NONE,
905 			    {(char_u *)NULL, (char_u *)0L}
906 #endif
907 			    SCRIPTID_INIT},
908     {"delcombine", "deco",  P_BOOL|P_VI_DEF|P_VIM,
909 #ifdef FEAT_MBYTE
910 			    (char_u *)&p_deco, PV_NONE,
911 #else
912 			    (char_u *)NULL, PV_NONE,
913 #endif
914 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
915     {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
916 #ifdef FEAT_INS_EXPAND
917 			    (char_u *)&p_dict, PV_DICT,
918 #else
919 			    (char_u *)NULL, PV_NONE,
920 #endif
921 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
922     {"diff",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN|P_NOGLOB,
923 #ifdef FEAT_DIFF
924 			    (char_u *)VAR_WIN, PV_DIFF,
925 #else
926 			    (char_u *)NULL, PV_NONE,
927 #endif
928 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
929     {"diffexpr",    "dex",  P_STRING|P_VI_DEF|P_SECURE,
930 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
931 			    (char_u *)&p_dex, PV_NONE,
932 			    {(char_u *)"", (char_u *)0L}
933 #else
934 			    (char_u *)NULL, PV_NONE,
935 			    {(char_u *)0L, (char_u *)0L}
936 #endif
937 			    SCRIPTID_INIT},
938     {"diffopt",	    "dip",  P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN|P_COMMA|P_NODUP,
939 #ifdef FEAT_DIFF
940 			    (char_u *)&p_dip, PV_NONE,
941 			    {(char_u *)"filler", (char_u *)NULL}
942 #else
943 			    (char_u *)NULL, PV_NONE,
944 			    {(char_u *)"", (char_u *)NULL}
945 #endif
946 			    SCRIPTID_INIT},
947     {"digraph",	    "dg",   P_BOOL|P_VI_DEF|P_VIM,
948 #ifdef FEAT_DIGRAPHS
949 			    (char_u *)&p_dg, PV_NONE,
950 #else
951 			    (char_u *)NULL, PV_NONE,
952 #endif
953 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
954     {"directory",   "dir",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP|P_SECURE,
955 			    (char_u *)&p_dir, PV_NONE,
956 			    {(char_u *)DFLT_DIR, (char_u *)0L} SCRIPTID_INIT},
957     {"display",	    "dy",   P_STRING|P_VI_DEF|P_COMMA|P_RALL|P_NODUP,
958 			    (char_u *)&p_dy, PV_NONE,
959 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
960     {"eadirection", "ead",  P_STRING|P_VI_DEF,
961 #ifdef FEAT_VERTSPLIT
962 			    (char_u *)&p_ead, PV_NONE,
963 			    {(char_u *)"both", (char_u *)0L}
964 #else
965 			    (char_u *)NULL, PV_NONE,
966 			    {(char_u *)NULL, (char_u *)0L}
967 #endif
968 			    SCRIPTID_INIT},
969     {"edcompatible","ed",   P_BOOL|P_VI_DEF,
970 			    (char_u *)&p_ed, PV_NONE,
971 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
972     {"encoding",    "enc",  P_STRING|P_VI_DEF|P_RCLR,
973 #ifdef FEAT_MBYTE
974 			    (char_u *)&p_enc, PV_NONE,
975 			    {(char_u *)ENC_DFLT, (char_u *)0L}
976 #else
977 			    (char_u *)NULL, PV_NONE,
978 			    {(char_u *)0L, (char_u *)0L}
979 #endif
980 			    SCRIPTID_INIT},
981     {"endofline",   "eol",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
982 			    (char_u *)&p_eol, PV_EOL,
983 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
984     {"equalalways", "ea",   P_BOOL|P_VI_DEF|P_RALL,
985 			    (char_u *)&p_ea, PV_NONE,
986 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
987     {"equalprg",    "ep",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
988 			    (char_u *)&p_ep, PV_EP,
989 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
990     {"errorbells",  "eb",   P_BOOL|P_VI_DEF,
991 			    (char_u *)&p_eb, PV_NONE,
992 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
993     {"errorfile",   "ef",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
994 #ifdef FEAT_QUICKFIX
995 			    (char_u *)&p_ef, PV_NONE,
996 			    {(char_u *)DFLT_ERRORFILE, (char_u *)0L}
997 #else
998 			    (char_u *)NULL, PV_NONE,
999 			    {(char_u *)NULL, (char_u *)0L}
1000 #endif
1001 			    SCRIPTID_INIT},
1002     {"errorformat", "efm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1003 #ifdef FEAT_QUICKFIX
1004 			    (char_u *)&p_efm, PV_EFM,
1005 			    {(char_u *)DFLT_EFM, (char_u *)0L}
1006 #else
1007 			    (char_u *)NULL, PV_NONE,
1008 			    {(char_u *)NULL, (char_u *)0L}
1009 #endif
1010 			    SCRIPTID_INIT},
1011     {"esckeys",	    "ek",   P_BOOL|P_VIM,
1012 			    (char_u *)&p_ek, PV_NONE,
1013 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1014     {"eventignore", "ei",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1015 #ifdef FEAT_AUTOCMD
1016 			    (char_u *)&p_ei, PV_NONE,
1017 #else
1018 			    (char_u *)NULL, PV_NONE,
1019 #endif
1020 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1021     {"expandtab",   "et",   P_BOOL|P_VI_DEF|P_VIM,
1022 			    (char_u *)&p_et, PV_ET,
1023 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1024     {"exrc",	    "ex",   P_BOOL|P_VI_DEF|P_SECURE,
1025 			    (char_u *)&p_exrc, PV_NONE,
1026 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1027     {"fileencoding","fenc", P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_RBUF|P_NO_MKRC,
1028 #ifdef FEAT_MBYTE
1029 			    (char_u *)&p_fenc, PV_FENC,
1030 			    {(char_u *)"", (char_u *)0L}
1031 #else
1032 			    (char_u *)NULL, PV_NONE,
1033 			    {(char_u *)0L, (char_u *)0L}
1034 #endif
1035 			    SCRIPTID_INIT},
1036     {"fileencodings","fencs", P_STRING|P_VI_DEF|P_COMMA,
1037 #ifdef FEAT_MBYTE
1038 			    (char_u *)&p_fencs, PV_NONE,
1039 			    {(char_u *)"ucs-bom", (char_u *)0L}
1040 #else
1041 			    (char_u *)NULL, PV_NONE,
1042 			    {(char_u *)0L, (char_u *)0L}
1043 #endif
1044 			    SCRIPTID_INIT},
1045     {"fileformat",  "ff",   P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_NO_MKRC,
1046 			    (char_u *)&p_ff, PV_FF,
1047 			    {(char_u *)DFLT_FF, (char_u *)0L} SCRIPTID_INIT},
1048     {"fileformats", "ffs",  P_STRING|P_VIM|P_COMMA|P_NODUP,
1049 			    (char_u *)&p_ffs, PV_NONE,
1050 			    {(char_u *)DFLT_FFS_VI, (char_u *)DFLT_FFS_VIM}
1051 			    SCRIPTID_INIT},
1052     {"filetype",    "ft",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
1053 #ifdef FEAT_AUTOCMD
1054 			    (char_u *)&p_ft, PV_FT,
1055 			    {(char_u *)"", (char_u *)0L}
1056 #else
1057 			    (char_u *)NULL, PV_NONE,
1058 			    {(char_u *)0L, (char_u *)0L}
1059 #endif
1060 			    SCRIPTID_INIT},
1061     {"fillchars",   "fcs",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
1062 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
1063 			    (char_u *)&p_fcs, PV_NONE,
1064 			    {(char_u *)"vert:|,fold:-", (char_u *)0L}
1065 #else
1066 			    (char_u *)NULL, PV_NONE,
1067 			    {(char_u *)"", (char_u *)0L}
1068 #endif
1069 			    SCRIPTID_INIT},
1070     {"fkmap",	    "fk",   P_BOOL|P_VI_DEF,
1071 #ifdef FEAT_FKMAP
1072 			    (char_u *)&p_fkmap, PV_NONE,
1073 #else
1074 			    (char_u *)NULL, PV_NONE,
1075 #endif
1076 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1077     {"flash",	    "fl",   P_BOOL|P_VI_DEF,
1078 			    (char_u *)NULL, PV_NONE,
1079 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1080 #ifdef FEAT_FOLDING
1081     {"foldclose",   "fcl",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP|P_RWIN,
1082 			    (char_u *)&p_fcl, PV_NONE,
1083 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1084     {"foldcolumn",  "fdc",  P_NUM|P_VI_DEF|P_RWIN,
1085 			    (char_u *)VAR_WIN, PV_FDC,
1086 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1087     {"foldenable",  "fen",  P_BOOL|P_VI_DEF|P_RWIN,
1088 			    (char_u *)VAR_WIN, PV_FEN,
1089 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1090     {"foldexpr",    "fde",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1091 # ifdef FEAT_EVAL
1092 			    (char_u *)VAR_WIN, PV_FDE,
1093 			    {(char_u *)"0", (char_u *)NULL}
1094 # else
1095 			    (char_u *)NULL, PV_NONE,
1096 			    {(char_u *)NULL, (char_u *)0L}
1097 # endif
1098 			    SCRIPTID_INIT},
1099     {"foldignore",  "fdi",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1100 			    (char_u *)VAR_WIN, PV_FDI,
1101 			    {(char_u *)"#", (char_u *)NULL} SCRIPTID_INIT},
1102     {"foldlevel",   "fdl",  P_NUM|P_VI_DEF|P_RWIN,
1103 			    (char_u *)VAR_WIN, PV_FDL,
1104 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1105     {"foldlevelstart","fdls", P_NUM|P_VI_DEF,
1106 			    (char_u *)&p_fdls, PV_NONE,
1107 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
1108     {"foldmarker",  "fmr",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|
1109 						       P_RWIN|P_COMMA|P_NODUP,
1110 			    (char_u *)VAR_WIN, PV_FMR,
1111 			    {(char_u *)"{{{,}}}", (char_u *)NULL}
1112 			    SCRIPTID_INIT},
1113     {"foldmethod",  "fdm",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1114 			    (char_u *)VAR_WIN, PV_FDM,
1115 			    {(char_u *)"manual", (char_u *)NULL} SCRIPTID_INIT},
1116     {"foldminlines","fml",  P_NUM|P_VI_DEF|P_RWIN,
1117 			    (char_u *)VAR_WIN, PV_FML,
1118 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1119     {"foldnestmax", "fdn",  P_NUM|P_VI_DEF|P_RWIN,
1120 			    (char_u *)VAR_WIN, PV_FDN,
1121 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1122     {"foldopen",    "fdo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1123 			    (char_u *)&p_fdo, PV_NONE,
1124 		 {(char_u *)"block,hor,mark,percent,quickfix,search,tag,undo",
1125 						 (char_u *)0L} SCRIPTID_INIT},
1126     {"foldtext",    "fdt",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
1127 # ifdef FEAT_EVAL
1128 			    (char_u *)VAR_WIN, PV_FDT,
1129 			    {(char_u *)"foldtext()", (char_u *)NULL}
1130 # else
1131 			    (char_u *)NULL, PV_NONE,
1132 			    {(char_u *)NULL, (char_u *)0L}
1133 # endif
1134 			    SCRIPTID_INIT},
1135 #endif
1136     {"formatexpr", "fex",   P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1137 #ifdef FEAT_EVAL
1138 			    (char_u *)&p_fex, PV_FEX,
1139 			    {(char_u *)"", (char_u *)0L}
1140 #else
1141 			    (char_u *)NULL, PV_NONE,
1142 			    {(char_u *)0L, (char_u *)0L}
1143 #endif
1144 			    SCRIPTID_INIT},
1145     {"formatoptions","fo",  P_STRING|P_ALLOCED|P_VIM|P_FLAGLIST,
1146 			    (char_u *)&p_fo, PV_FO,
1147 			    {(char_u *)DFLT_FO_VI, (char_u *)DFLT_FO_VIM}
1148 			    SCRIPTID_INIT},
1149     {"formatlistpat","flp", P_STRING|P_ALLOCED|P_VI_DEF,
1150 			    (char_u *)&p_flp, PV_FLP,
1151 			    {(char_u *)"^\\s*\\d\\+[\\]:.)}\\t ]\\s*",
1152 						 (char_u *)0L} SCRIPTID_INIT},
1153     {"formatprg",   "fp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1154 			    (char_u *)&p_fp, PV_NONE,
1155 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1156     {"fsync",       "fs",   P_BOOL|P_SECURE|P_VI_DEF,
1157 #ifdef HAVE_FSYNC
1158 			    (char_u *)&p_fs, PV_NONE,
1159 			    {(char_u *)TRUE, (char_u *)0L}
1160 #else
1161 			    (char_u *)NULL, PV_NONE,
1162 			    {(char_u *)FALSE, (char_u *)0L}
1163 #endif
1164 			    SCRIPTID_INIT},
1165     {"gdefault",    "gd",   P_BOOL|P_VI_DEF|P_VIM,
1166 			    (char_u *)&p_gd, PV_NONE,
1167 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1168     {"graphic",	    "gr",   P_BOOL|P_VI_DEF,
1169 			    (char_u *)NULL, PV_NONE,
1170 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1171     {"grepformat",  "gfm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1172 #ifdef FEAT_QUICKFIX
1173 			    (char_u *)&p_gefm, PV_NONE,
1174 			    {(char_u *)DFLT_GREPFORMAT, (char_u *)0L}
1175 #else
1176 			    (char_u *)NULL, PV_NONE,
1177 			    {(char_u *)NULL, (char_u *)0L}
1178 #endif
1179 			    SCRIPTID_INIT},
1180     {"grepprg",	    "gp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1181 #ifdef FEAT_QUICKFIX
1182 			    (char_u *)&p_gp, PV_GP,
1183 			    {
1184 # ifdef WIN3264
1185 			    /* may be changed to "grep -n" in os_win32.c */
1186 			    (char_u *)"findstr /n",
1187 # else
1188 #  ifdef UNIX
1189 			    /* Add an extra file name so that grep will always
1190 			     * insert a file name in the match line. */
1191 			    (char_u *)"grep -n $* /dev/null",
1192 #  else
1193 #   ifdef VMS
1194 			    (char_u *)"SEARCH/NUMBERS ",
1195 #   else
1196 			    (char_u *)"grep -n ",
1197 #   endif
1198 #  endif
1199 # endif
1200 			    (char_u *)0L}
1201 #else
1202 			    (char_u *)NULL, PV_NONE,
1203 			    {(char_u *)NULL, (char_u *)0L}
1204 #endif
1205 			    SCRIPTID_INIT},
1206     {"guicursor",    "gcr",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1207 #ifdef CURSOR_SHAPE
1208 			    (char_u *)&p_guicursor, PV_NONE,
1209 			    {
1210 # ifdef FEAT_GUI
1211 				(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",
1212 # else	/* MSDOS or Win32 console */
1213 				(char_u *)"n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block",
1214 # endif
1215 				    (char_u *)0L}
1216 #else
1217 			    (char_u *)NULL, PV_NONE,
1218 			    {(char_u *)NULL, (char_u *)0L}
1219 #endif
1220 			    SCRIPTID_INIT},
1221     {"guifont",	    "gfn",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
1222 #ifdef FEAT_GUI
1223 			    (char_u *)&p_guifont, PV_NONE,
1224 			    {(char_u *)"", (char_u *)0L}
1225 #else
1226 			    (char_u *)NULL, PV_NONE,
1227 			    {(char_u *)NULL, (char_u *)0L}
1228 #endif
1229 			    SCRIPTID_INIT},
1230     {"guifontset",  "gfs",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA,
1231 #if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
1232 			    (char_u *)&p_guifontset, PV_NONE,
1233 			    {(char_u *)"", (char_u *)0L}
1234 #else
1235 			    (char_u *)NULL, PV_NONE,
1236 			    {(char_u *)NULL, (char_u *)0L}
1237 #endif
1238 			    SCRIPTID_INIT},
1239     {"guifontwide", "gfw",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
1240 #if defined(FEAT_GUI) && defined(FEAT_MBYTE)
1241 			    (char_u *)&p_guifontwide, PV_NONE,
1242 			    {(char_u *)"", (char_u *)0L}
1243 #else
1244 			    (char_u *)NULL, PV_NONE,
1245 			    {(char_u *)NULL, (char_u *)0L}
1246 #endif
1247 			    SCRIPTID_INIT},
1248     {"guiheadroom", "ghr",  P_NUM|P_VI_DEF,
1249 #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
1250 			    (char_u *)&p_ghr, PV_NONE,
1251 #else
1252 			    (char_u *)NULL, PV_NONE,
1253 #endif
1254 			    {(char_u *)50L, (char_u *)0L} SCRIPTID_INIT},
1255     {"guioptions",  "go",   P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
1256 #if defined(FEAT_GUI)
1257 			    (char_u *)&p_go, PV_NONE,
1258 # if defined(UNIX) && !defined(MACOS)
1259 			    {(char_u *)"aegimrLtT", (char_u *)0L}
1260 # else
1261 			    {(char_u *)"egmrLtT", (char_u *)0L}
1262 # endif
1263 #else
1264 			    (char_u *)NULL, PV_NONE,
1265 			    {(char_u *)NULL, (char_u *)0L}
1266 #endif
1267 			    SCRIPTID_INIT},
1268     {"guipty",	    NULL,   P_BOOL|P_VI_DEF,
1269 #if defined(FEAT_GUI)
1270 			    (char_u *)&p_guipty, PV_NONE,
1271 #else
1272 			    (char_u *)NULL, PV_NONE,
1273 #endif
1274 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1275     {"guitablabel",  "gtl", P_STRING|P_VI_DEF|P_RWIN,
1276 #if defined(FEAT_GUI_TABLINE)
1277 			    (char_u *)&p_gtl, PV_NONE,
1278 			    {(char_u *)"", (char_u *)0L}
1279 #else
1280 			    (char_u *)NULL, PV_NONE,
1281 			    {(char_u *)NULL, (char_u *)0L}
1282 #endif
1283 			    SCRIPTID_INIT},
1284     {"guitabtooltip",  "gtt", P_STRING|P_VI_DEF|P_RWIN,
1285 #if defined(FEAT_GUI_TABLINE)
1286 			    (char_u *)&p_gtt, PV_NONE,
1287 			    {(char_u *)"", (char_u *)0L}
1288 #else
1289 			    (char_u *)NULL, PV_NONE,
1290 			    {(char_u *)NULL, (char_u *)0L}
1291 #endif
1292 			    SCRIPTID_INIT},
1293     {"hardtabs",    "ht",   P_NUM|P_VI_DEF,
1294 			    (char_u *)NULL, PV_NONE,
1295 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1296     {"helpfile",    "hf",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1297 			    (char_u *)&p_hf, PV_NONE,
1298 			    {(char_u *)DFLT_HELPFILE, (char_u *)0L}
1299 			    SCRIPTID_INIT},
1300     {"helpheight",  "hh",   P_NUM|P_VI_DEF,
1301 #ifdef FEAT_WINDOWS
1302 			    (char_u *)&p_hh, PV_NONE,
1303 #else
1304 			    (char_u *)NULL, PV_NONE,
1305 #endif
1306 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
1307     {"helplang",    "hlg",  P_STRING|P_VI_DEF|P_COMMA,
1308 #ifdef FEAT_MULTI_LANG
1309 			    (char_u *)&p_hlg, PV_NONE,
1310 			    {(char_u *)"", (char_u *)0L}
1311 #else
1312 			    (char_u *)NULL, PV_NONE,
1313 			    {(char_u *)0L, (char_u *)0L}
1314 #endif
1315 			    SCRIPTID_INIT},
1316     {"hidden",	    "hid",  P_BOOL|P_VI_DEF,
1317 			    (char_u *)&p_hid, PV_NONE,
1318 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1319     {"highlight",   "hl",   P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
1320 			    (char_u *)&p_hl, PV_NONE,
1321 			    {(char_u *)HIGHLIGHT_INIT, (char_u *)0L}
1322 			    SCRIPTID_INIT},
1323     {"history",	    "hi",   P_NUM|P_VIM,
1324 			    (char_u *)&p_hi, PV_NONE,
1325 			    {(char_u *)0L, (char_u *)20L} SCRIPTID_INIT},
1326     {"hkmap",	    "hk",   P_BOOL|P_VI_DEF|P_VIM,
1327 #ifdef FEAT_RIGHTLEFT
1328 			    (char_u *)&p_hkmap, PV_NONE,
1329 #else
1330 			    (char_u *)NULL, PV_NONE,
1331 #endif
1332 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1333     {"hkmapp",	    "hkp",  P_BOOL|P_VI_DEF|P_VIM,
1334 #ifdef FEAT_RIGHTLEFT
1335 			    (char_u *)&p_hkmapp, PV_NONE,
1336 #else
1337 			    (char_u *)NULL, PV_NONE,
1338 #endif
1339 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1340     {"hlsearch",    "hls",  P_BOOL|P_VI_DEF|P_VIM|P_RALL,
1341 			    (char_u *)&p_hls, PV_NONE,
1342 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1343     {"icon",	    NULL,   P_BOOL|P_VI_DEF,
1344 #ifdef FEAT_TITLE
1345 			    (char_u *)&p_icon, PV_NONE,
1346 #else
1347 			    (char_u *)NULL, PV_NONE,
1348 #endif
1349 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1350     {"iconstring",  NULL,   P_STRING|P_VI_DEF,
1351 #ifdef FEAT_TITLE
1352 			    (char_u *)&p_iconstring, PV_NONE,
1353 #else
1354 			    (char_u *)NULL, PV_NONE,
1355 #endif
1356 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1357     {"ignorecase",  "ic",   P_BOOL|P_VI_DEF,
1358 			    (char_u *)&p_ic, PV_NONE,
1359 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1360     {"imactivatekey","imak",P_STRING|P_VI_DEF,
1361 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
1362 			    (char_u *)&p_imak, PV_NONE,
1363 #else
1364 			    (char_u *)NULL, PV_NONE,
1365 #endif
1366 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1367     {"imcmdline",   "imc",  P_BOOL|P_VI_DEF,
1368 #ifdef USE_IM_CONTROL
1369 			    (char_u *)&p_imcmdline, PV_NONE,
1370 #else
1371 			    (char_u *)NULL, PV_NONE,
1372 #endif
1373 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1374     {"imdisable",   "imd",  P_BOOL|P_VI_DEF,
1375 #ifdef USE_IM_CONTROL
1376 			    (char_u *)&p_imdisable, PV_NONE,
1377 #else
1378 			    (char_u *)NULL, PV_NONE,
1379 #endif
1380 #ifdef __sgi
1381 			    {(char_u *)TRUE, (char_u *)0L}
1382 #else
1383 			    {(char_u *)FALSE, (char_u *)0L}
1384 #endif
1385 			    SCRIPTID_INIT},
1386     {"iminsert",    "imi",  P_NUM|P_VI_DEF,
1387 			    (char_u *)&p_iminsert, PV_IMI,
1388 #ifdef B_IMODE_IM
1389 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1390 #else
1391 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1392 #endif
1393 			    SCRIPTID_INIT},
1394     {"imsearch",    "ims",  P_NUM|P_VI_DEF,
1395 			    (char_u *)&p_imsearch, PV_IMS,
1396 #ifdef B_IMODE_IM
1397 			    {(char_u *)B_IMODE_IM, (char_u *)0L}
1398 #else
1399 			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
1400 #endif
1401 			    SCRIPTID_INIT},
1402     {"include",	    "inc",  P_STRING|P_ALLOCED|P_VI_DEF,
1403 #ifdef FEAT_FIND_ID
1404 			    (char_u *)&p_inc, PV_INC,
1405 			    {(char_u *)"^\\s*#\\s*include", (char_u *)0L}
1406 #else
1407 			    (char_u *)NULL, PV_NONE,
1408 			    {(char_u *)0L, (char_u *)0L}
1409 #endif
1410 			    SCRIPTID_INIT},
1411     {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF,
1412 #if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
1413 			    (char_u *)&p_inex, PV_INEX,
1414 			    {(char_u *)"", (char_u *)0L}
1415 #else
1416 			    (char_u *)NULL, PV_NONE,
1417 			    {(char_u *)0L, (char_u *)0L}
1418 #endif
1419 			    SCRIPTID_INIT},
1420     {"incsearch",   "is",   P_BOOL|P_VI_DEF|P_VIM,
1421 			    (char_u *)&p_is, PV_NONE,
1422 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1423     {"indentexpr", "inde",  P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
1424 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1425 			    (char_u *)&p_inde, PV_INDE,
1426 			    {(char_u *)"", (char_u *)0L}
1427 #else
1428 			    (char_u *)NULL, PV_NONE,
1429 			    {(char_u *)0L, (char_u *)0L}
1430 #endif
1431 			    SCRIPTID_INIT},
1432     {"indentkeys", "indk",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
1433 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1434 			    (char_u *)&p_indk, PV_INDK,
1435 			    {(char_u *)"0{,0},:,0#,!^F,o,O,e", (char_u *)0L}
1436 #else
1437 			    (char_u *)NULL, PV_NONE,
1438 			    {(char_u *)0L, (char_u *)0L}
1439 #endif
1440 			    SCRIPTID_INIT},
1441     {"infercase",   "inf",  P_BOOL|P_VI_DEF,
1442 			    (char_u *)&p_inf, PV_INF,
1443 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1444     {"insertmode",  "im",   P_BOOL|P_VI_DEF|P_VIM,
1445 			    (char_u *)&p_im, PV_NONE,
1446 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1447     {"isfname",	    "isf",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1448 			    (char_u *)&p_isf, PV_NONE,
1449 			    {
1450 #ifdef BACKSLASH_IN_FILENAME
1451 				/* Excluded are: & and ^ are special in cmd.exe
1452 				 * ( and ) are used in text separating fnames */
1453 			    (char_u *)"@,48-57,/,\\,.,-,_,+,,,#,$,%,{,},[,],:,@-@,!,~,=",
1454 #else
1455 # ifdef AMIGA
1456 			    (char_u *)"@,48-57,/,.,-,_,+,,,$,:",
1457 # else
1458 #  ifdef VMS
1459 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,<,>,[,],:,;,~",
1460 #  else /* UNIX et al. */
1461 #   ifdef EBCDIC
1462 			    (char_u *)"@,240-249,/,.,-,_,+,,,#,$,%,~,=",
1463 #   else
1464 			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,~,=",
1465 #   endif
1466 #  endif
1467 # endif
1468 #endif
1469 				(char_u *)0L} SCRIPTID_INIT},
1470     {"isident",	    "isi",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1471 			    (char_u *)&p_isi, PV_NONE,
1472 			    {
1473 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
1474 			    (char_u *)"@,48-57,_,128-167,224-235",
1475 #else
1476 # ifdef EBCDIC
1477 			    /* TODO: EBCDIC Check this! @ == isalpha()*/
1478 			    (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1479 				    "112-120,128,140-142,156,158,172,"
1480 				    "174,186,191,203-207,219-225,235-239,"
1481 				    "251-254",
1482 # else
1483 			    (char_u *)"@,48-57,_,192-255",
1484 # endif
1485 #endif
1486 				(char_u *)0L} SCRIPTID_INIT},
1487     {"iskeyword",   "isk",  P_STRING|P_ALLOCED|P_VIM|P_COMMA|P_NODUP,
1488 			    (char_u *)&p_isk, PV_ISK,
1489 			    {
1490 #ifdef EBCDIC
1491 			     (char_u *)"@,240-249,_",
1492 			     /* TODO: EBCDIC Check this! @ == isalpha()*/
1493 			     (char_u *)"@,240-249,_,66-73,81-89,98-105,"
1494 				    "112-120,128,140-142,156,158,172,"
1495 				    "174,186,191,203-207,219-225,235-239,"
1496 				    "251-254",
1497 #else
1498 				(char_u *)"@,48-57,_",
1499 # if defined(MSDOS) || defined(MSWIN) || defined(OS2)
1500 				(char_u *)"@,48-57,_,128-167,224-235"
1501 # else
1502 				ISK_LATIN1
1503 # endif
1504 #endif
1505 			    } SCRIPTID_INIT},
1506     {"isprint",	    "isp",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
1507 			    (char_u *)&p_isp, PV_NONE,
1508 			    {
1509 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) \
1510 		|| (defined(MACOS) && !defined(MACOS_X)) \
1511 		|| defined(VMS)
1512 			    (char_u *)"@,~-255",
1513 #else
1514 # ifdef EBCDIC
1515 			    /* all chars above 63 are printable */
1516 			    (char_u *)"63-255",
1517 # else
1518 			    ISP_LATIN1,
1519 # endif
1520 #endif
1521 				(char_u *)0L} SCRIPTID_INIT},
1522     {"joinspaces",  "js",   P_BOOL|P_VI_DEF|P_VIM,
1523 			    (char_u *)&p_js, PV_NONE,
1524 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1525     {"key",	    NULL,   P_STRING|P_ALLOCED|P_VI_DEF|P_NO_MKRC,
1526 #ifdef FEAT_CRYPT
1527 			    (char_u *)&p_key, PV_KEY,
1528 			    {(char_u *)"", (char_u *)0L}
1529 #else
1530 			    (char_u *)NULL, PV_NONE,
1531 			    {(char_u *)0L, (char_u *)0L}
1532 #endif
1533 			    SCRIPTID_INIT},
1534     {"keymap",	    "kmp",  P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF|P_RSTAT|P_NFNAME|P_PRI_MKRC,
1535 #ifdef FEAT_KEYMAP
1536 			    (char_u *)&p_keymap, PV_KMAP,
1537 			    {(char_u *)"", (char_u *)0L}
1538 #else
1539 			    (char_u *)NULL, PV_NONE,
1540 			    {(char_u *)"", (char_u *)0L}
1541 #endif
1542 			    SCRIPTID_INIT},
1543     {"keymodel",    "km",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1544 #ifdef FEAT_VISUAL
1545 			    (char_u *)&p_km, PV_NONE,
1546 #else
1547 			    (char_u *)NULL, PV_NONE,
1548 #endif
1549 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1550     {"keywordprg",  "kp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1551 			    (char_u *)&p_kp, PV_KP,
1552 			    {
1553 #if defined(MSDOS) || defined(MSWIN)
1554 			    (char_u *)":help",
1555 #else
1556 #ifdef VMS
1557 			    (char_u *)"help",
1558 #else
1559 # if defined(OS2)
1560 			    (char_u *)"view /",
1561 # else
1562 #  ifdef USEMAN_S
1563 			    (char_u *)"man -s",
1564 #  else
1565 			    (char_u *)"man",
1566 #  endif
1567 # endif
1568 #endif
1569 #endif
1570 				(char_u *)0L} SCRIPTID_INIT},
1571     {"langmap",     "lmap", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1572 #ifdef FEAT_LANGMAP
1573 			    (char_u *)&p_langmap, PV_NONE,
1574 			    {(char_u *)"",	/* unmatched } */
1575 #else
1576 			    (char_u *)NULL, PV_NONE,
1577 			    {(char_u *)NULL,
1578 #endif
1579 				(char_u *)0L} SCRIPTID_INIT},
1580     {"langmenu",    "lm",   P_STRING|P_VI_DEF|P_NFNAME,
1581 #if defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)
1582 			    (char_u *)&p_lm, PV_NONE,
1583 #else
1584 			    (char_u *)NULL, PV_NONE,
1585 #endif
1586 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1587     {"laststatus",  "ls",   P_NUM|P_VI_DEF|P_RALL,
1588 #ifdef FEAT_WINDOWS
1589 			    (char_u *)&p_ls, PV_NONE,
1590 #else
1591 			    (char_u *)NULL, PV_NONE,
1592 #endif
1593 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
1594     {"lazyredraw",  "lz",   P_BOOL|P_VI_DEF,
1595 			    (char_u *)&p_lz, PV_NONE,
1596 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1597     {"linebreak",   "lbr",  P_BOOL|P_VI_DEF|P_RWIN,
1598 #ifdef FEAT_LINEBREAK
1599 			    (char_u *)VAR_WIN, PV_LBR,
1600 #else
1601 			    (char_u *)NULL, PV_NONE,
1602 #endif
1603 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1604     {"lines",	    NULL,   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
1605 			    (char_u *)&Rows, PV_NONE,
1606 			    {
1607 #if defined(MSDOS) || defined(WIN3264) || defined(OS2)
1608 			    (char_u *)25L,
1609 #else
1610 			    (char_u *)24L,
1611 #endif
1612 					    (char_u *)0L} SCRIPTID_INIT},
1613     {"linespace",   "lsp",  P_NUM|P_VI_DEF|P_RCLR,
1614 #ifdef FEAT_GUI
1615 			    (char_u *)&p_linespace, PV_NONE,
1616 #else
1617 			    (char_u *)NULL, PV_NONE,
1618 #endif
1619 #ifdef FEAT_GUI_W32
1620 			    {(char_u *)1L, (char_u *)0L}
1621 #else
1622 			    {(char_u *)0L, (char_u *)0L}
1623 #endif
1624 			    SCRIPTID_INIT},
1625     {"lisp",	    NULL,   P_BOOL|P_VI_DEF,
1626 #ifdef FEAT_LISP
1627 			    (char_u *)&p_lisp, PV_LISP,
1628 #else
1629 			    (char_u *)NULL, PV_NONE,
1630 #endif
1631 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1632     {"lispwords",   "lw",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1633 #ifdef FEAT_LISP
1634 			    (char_u *)&p_lispwords, PV_NONE,
1635 			    {(char_u *)LISPWORD_VALUE, (char_u *)0L}
1636 #else
1637 			    (char_u *)NULL, PV_NONE,
1638 			    {(char_u *)"", (char_u *)0L}
1639 #endif
1640 			    SCRIPTID_INIT},
1641     {"list",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
1642 			    (char_u *)VAR_WIN, PV_LIST,
1643 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1644     {"listchars",   "lcs",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
1645 			    (char_u *)&p_lcs, PV_NONE,
1646 			    {(char_u *)"eol:$", (char_u *)0L} SCRIPTID_INIT},
1647     {"loadplugins", "lpl",  P_BOOL|P_VI_DEF,
1648 			    (char_u *)&p_lpl, PV_NONE,
1649 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1650 #ifdef FEAT_GUI_MAC
1651     {"macatsui",    NULL,   P_BOOL|P_VI_DEF|P_RCLR,
1652 			    (char_u *)&p_macatsui, PV_NONE,
1653 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1654 #endif
1655     {"magic",	    NULL,   P_BOOL|P_VI_DEF,
1656 			    (char_u *)&p_magic, PV_NONE,
1657 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1658     {"makeef",	    "mef",  P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1659 #ifdef FEAT_QUICKFIX
1660 			    (char_u *)&p_mef, PV_NONE,
1661 			    {(char_u *)"", (char_u *)0L}
1662 #else
1663 			    (char_u *)NULL, PV_NONE,
1664 			    {(char_u *)NULL, (char_u *)0L}
1665 #endif
1666 			    SCRIPTID_INIT},
1667     {"makeprg",	    "mp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
1668 #ifdef FEAT_QUICKFIX
1669 			    (char_u *)&p_mp, PV_MP,
1670 # ifdef VMS
1671 			    {(char_u *)"MMS", (char_u *)0L}
1672 # else
1673 			    {(char_u *)"make", (char_u *)0L}
1674 # endif
1675 #else
1676 			    (char_u *)NULL, PV_NONE,
1677 			    {(char_u *)NULL, (char_u *)0L}
1678 #endif
1679 			    SCRIPTID_INIT},
1680     {"matchpairs",  "mps",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
1681 			    (char_u *)&p_mps, PV_MPS,
1682 			    {(char_u *)"(:),{:},[:]", (char_u *)0L}
1683 			    SCRIPTID_INIT},
1684     {"matchtime",   "mat",  P_NUM|P_VI_DEF,
1685 			    (char_u *)&p_mat, PV_NONE,
1686 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1687     {"maxcombine",  "mco",  P_NUM|P_VI_DEF,
1688 #ifdef FEAT_MBYTE
1689 			    (char_u *)&p_mco, PV_NONE,
1690 #else
1691 			    (char_u *)NULL, PV_NONE,
1692 #endif
1693 			    {(char_u *)2, (char_u *)0L} SCRIPTID_INIT},
1694     {"maxfuncdepth", "mfd", P_NUM|P_VI_DEF,
1695 #ifdef FEAT_EVAL
1696 			    (char_u *)&p_mfd, PV_NONE,
1697 #else
1698 			    (char_u *)NULL, PV_NONE,
1699 #endif
1700 			    {(char_u *)100L, (char_u *)0L} SCRIPTID_INIT},
1701     {"maxmapdepth", "mmd",  P_NUM|P_VI_DEF,
1702 			    (char_u *)&p_mmd, PV_NONE,
1703 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1704     {"maxmem",	    "mm",   P_NUM|P_VI_DEF,
1705 			    (char_u *)&p_mm, PV_NONE,
1706 			    {(char_u *)DFLT_MAXMEM, (char_u *)0L}
1707 			    SCRIPTID_INIT},
1708     {"maxmempattern","mmp", P_NUM|P_VI_DEF,
1709 			    (char_u *)&p_mmp, PV_NONE,
1710 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
1711     {"maxmemtot",   "mmt",  P_NUM|P_VI_DEF,
1712 			    (char_u *)&p_mmt, PV_NONE,
1713 			    {(char_u *)DFLT_MAXMEMTOT, (char_u *)0L}
1714 			    SCRIPTID_INIT},
1715     {"menuitems",   "mis",  P_NUM|P_VI_DEF,
1716 #ifdef FEAT_MENU
1717 			    (char_u *)&p_mis, PV_NONE,
1718 #else
1719 			    (char_u *)NULL, PV_NONE,
1720 #endif
1721 			    {(char_u *)25L, (char_u *)0L} SCRIPTID_INIT},
1722     {"mesg",	    NULL,   P_BOOL|P_VI_DEF,
1723 			    (char_u *)NULL, PV_NONE,
1724 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1725     {"mkspellmem",  "msm",  P_STRING|P_VI_DEF|P_EXPAND|P_SECURE,
1726 #ifdef FEAT_SPELL
1727 			    (char_u *)&p_msm, PV_NONE,
1728 			    {(char_u *)"460000,2000,500", (char_u *)0L}
1729 #else
1730 			    (char_u *)NULL, PV_NONE,
1731 			    {(char_u *)0L, (char_u *)0L}
1732 #endif
1733 			    SCRIPTID_INIT},
1734     {"modeline",    "ml",   P_BOOL|P_VIM,
1735 			    (char_u *)&p_ml, PV_ML,
1736 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1737     {"modelines",   "mls",  P_NUM|P_VI_DEF,
1738 			    (char_u *)&p_mls, PV_NONE,
1739 			    {(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
1740     {"modifiable",  "ma",   P_BOOL|P_VI_DEF|P_NOGLOB,
1741 			    (char_u *)&p_ma, PV_MA,
1742 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1743     {"modified",    "mod",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
1744 			    (char_u *)&p_mod, PV_MOD,
1745 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1746     {"more",	    NULL,   P_BOOL|P_VIM,
1747 			    (char_u *)&p_more, PV_NONE,
1748 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
1749     {"mouse",	    NULL,   P_STRING|P_VI_DEF|P_FLAGLIST,
1750 			    (char_u *)&p_mouse, PV_NONE,
1751 			    {
1752 #if defined(MSDOS) || defined(WIN3264)
1753 				(char_u *)"a",
1754 #else
1755 				(char_u *)"",
1756 #endif
1757 				(char_u *)0L} SCRIPTID_INIT},
1758     {"mousefocus",   "mousef", P_BOOL|P_VI_DEF,
1759 #ifdef FEAT_GUI
1760 			    (char_u *)&p_mousef, PV_NONE,
1761 #else
1762 			    (char_u *)NULL, PV_NONE,
1763 #endif
1764 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1765     {"mousehide",   "mh",   P_BOOL|P_VI_DEF,
1766 #ifdef FEAT_GUI
1767 			    (char_u *)&p_mh, PV_NONE,
1768 #else
1769 			    (char_u *)NULL, PV_NONE,
1770 #endif
1771 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1772     {"mousemodel",  "mousem", P_STRING|P_VI_DEF,
1773 			    (char_u *)&p_mousem, PV_NONE,
1774 			    {
1775 #if defined(MSDOS) || defined(MSWIN)
1776 				(char_u *)"popup",
1777 #else
1778 # if defined(MACOS)
1779 				(char_u *)"popup_setpos",
1780 # else
1781 				(char_u *)"extend",
1782 # endif
1783 #endif
1784 				(char_u *)0L} SCRIPTID_INIT},
1785     {"mouseshape",  "mouses",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1786 #ifdef FEAT_MOUSESHAPE
1787 			    (char_u *)&p_mouseshape, PV_NONE,
1788 			    {(char_u *)"i-r:beam,s:updown,sd:udsizing,vs:leftright,vd:lrsizing,m:no,ml:up-arrow,v:rightup-arrow", (char_u *)0L}
1789 #else
1790 			    (char_u *)NULL, PV_NONE,
1791 			    {(char_u *)NULL, (char_u *)0L}
1792 #endif
1793 			    SCRIPTID_INIT},
1794     {"mousetime",   "mouset",	P_NUM|P_VI_DEF,
1795 			    (char_u *)&p_mouset, PV_NONE,
1796 			    {(char_u *)500L, (char_u *)0L} SCRIPTID_INIT},
1797     {"mzquantum",  "mzq",   P_NUM,
1798 #ifdef FEAT_MZSCHEME
1799 			    (char_u *)&p_mzq, PV_NONE,
1800 #else
1801 			    (char_u *)NULL, PV_NONE,
1802 #endif
1803 			    {(char_u *)100L, (char_u *)100L} SCRIPTID_INIT},
1804     {"novice",	    NULL,   P_BOOL|P_VI_DEF,
1805 			    (char_u *)NULL, PV_NONE,
1806 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1807     {"nrformats",   "nf",   P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
1808 			    (char_u *)&p_nf, PV_NF,
1809 			    {(char_u *)"octal,hex", (char_u *)0L}
1810 			    SCRIPTID_INIT},
1811     {"number",	    "nu",   P_BOOL|P_VI_DEF|P_RWIN,
1812 			    (char_u *)VAR_WIN, PV_NU,
1813 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1814     {"numberwidth", "nuw",  P_NUM|P_RWIN|P_VIM,
1815 #ifdef FEAT_LINEBREAK
1816 			    (char_u *)VAR_WIN, PV_NUW,
1817 #else
1818 			    (char_u *)NULL, PV_NONE,
1819 #endif
1820 			    {(char_u *)8L, (char_u *)4L} SCRIPTID_INIT},
1821     {"omnifunc",    "ofu",  P_STRING|P_ALLOCED|P_VI_DEF|P_SECURE,
1822 #ifdef FEAT_COMPL_FUNC
1823 			    (char_u *)&p_ofu, PV_OFU,
1824 			    {(char_u *)"", (char_u *)0L}
1825 #else
1826 			    (char_u *)NULL, PV_NONE,
1827 			    {(char_u *)0L, (char_u *)0L}
1828 #endif
1829 			    SCRIPTID_INIT},
1830     {"open",	    NULL,   P_BOOL|P_VI_DEF,
1831 			    (char_u *)NULL, PV_NONE,
1832 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1833     {"opendevice",  "odev", P_BOOL|P_VI_DEF,
1834 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
1835 			    (char_u *)&p_odev, PV_NONE,
1836 #else
1837 			    (char_u *)NULL, PV_NONE,
1838 #endif
1839 			    {(char_u *)FALSE, (char_u *)FALSE}
1840 			    SCRIPTID_INIT},
1841     {"operatorfunc", "opfunc", P_STRING|P_VI_DEF|P_SECURE,
1842 			    (char_u *)&p_opfunc, PV_NONE,
1843 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1844     {"optimize",    "opt",  P_BOOL|P_VI_DEF,
1845 			    (char_u *)NULL, PV_NONE,
1846 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1847     {"osfiletype",  "oft",  P_STRING|P_ALLOCED|P_VI_DEF,
1848 #ifdef FEAT_OSFILETYPE
1849 			    (char_u *)&p_oft, PV_OFT,
1850 			    {(char_u *)DFLT_OFT, (char_u *)0L}
1851 #else
1852 			    (char_u *)NULL, PV_NONE,
1853 			    {(char_u *)0L, (char_u *)0L}
1854 #endif
1855 			    SCRIPTID_INIT},
1856     {"paragraphs",  "para", P_STRING|P_VI_DEF,
1857 			    (char_u *)&p_para, PV_NONE,
1858 			    {(char_u *)"IPLPPPQPP TPHPLIPpLpItpplpipbp",
1859 				(char_u *)0L} SCRIPTID_INIT},
1860     {"paste",	    NULL,   P_BOOL|P_VI_DEF|P_PRI_MKRC,
1861 			    (char_u *)&p_paste, PV_NONE,
1862 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1863     {"pastetoggle", "pt",   P_STRING|P_VI_DEF,
1864 			    (char_u *)&p_pt, PV_NONE,
1865 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1866     {"patchexpr",   "pex",  P_STRING|P_VI_DEF|P_SECURE,
1867 #if defined(FEAT_DIFF) && defined(FEAT_EVAL)
1868 			    (char_u *)&p_pex, PV_NONE,
1869 			    {(char_u *)"", (char_u *)0L}
1870 #else
1871 			    (char_u *)NULL, PV_NONE,
1872 			    {(char_u *)0L, (char_u *)0L}
1873 #endif
1874 			    SCRIPTID_INIT},
1875     {"patchmode",   "pm",   P_STRING|P_VI_DEF|P_NFNAME,
1876 			    (char_u *)&p_pm, PV_NONE,
1877 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
1878     {"path",	    "pa",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
1879 			    (char_u *)&p_path, PV_PATH,
1880 			    {
1881 #if defined AMIGA || defined MSDOS || defined MSWIN
1882 			    (char_u *)".,,",
1883 #else
1884 # if defined(__EMX__)
1885 			    (char_u *)".,/emx/include,,",
1886 # else /* Unix, probably */
1887 			    (char_u *)".,/usr/include,,",
1888 # endif
1889 #endif
1890 				(char_u *)0L} SCRIPTID_INIT},
1891     {"preserveindent", "pi", P_BOOL|P_VI_DEF|P_VIM,
1892 			    (char_u *)&p_pi, PV_PI,
1893 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1894     {"previewheight", "pvh", P_NUM|P_VI_DEF,
1895 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
1896 			    (char_u *)&p_pvh, PV_NONE,
1897 #else
1898 			    (char_u *)NULL, PV_NONE,
1899 #endif
1900 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
1901     {"previewwindow", "pvw", P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
1902 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
1903 			    (char_u *)VAR_WIN, PV_PVW,
1904 #else
1905 			    (char_u *)NULL, PV_NONE,
1906 #endif
1907 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
1908     {"printdevice", "pdev", P_STRING|P_VI_DEF|P_SECURE,
1909 #ifdef FEAT_PRINTER
1910 			    (char_u *)&p_pdev, PV_NONE,
1911 			    {(char_u *)"", (char_u *)0L}
1912 #else
1913 			    (char_u *)NULL, PV_NONE,
1914 			    {(char_u *)NULL, (char_u *)0L}
1915 #endif
1916 			    SCRIPTID_INIT},
1917     {"printencoding", "penc", P_STRING|P_VI_DEF,
1918 #ifdef FEAT_POSTSCRIPT
1919 			    (char_u *)&p_penc, PV_NONE,
1920 			    {(char_u *)"", (char_u *)0L}
1921 #else
1922 			    (char_u *)NULL, PV_NONE,
1923 			    {(char_u *)NULL, (char_u *)0L}
1924 #endif
1925 			    SCRIPTID_INIT},
1926     {"printexpr", "pexpr",  P_STRING|P_VI_DEF,
1927 #ifdef FEAT_POSTSCRIPT
1928 			    (char_u *)&p_pexpr, PV_NONE,
1929 			    {(char_u *)"", (char_u *)0L}
1930 #else
1931 			    (char_u *)NULL, PV_NONE,
1932 			    {(char_u *)NULL, (char_u *)0L}
1933 #endif
1934 			    SCRIPTID_INIT},
1935     {"printfont", "pfn",    P_STRING|P_VI_DEF,
1936 #ifdef FEAT_PRINTER
1937 			    (char_u *)&p_pfn, PV_NONE,
1938 			    {
1939 # ifdef MSWIN
1940 				(char_u *)"Courier_New:h10",
1941 # else
1942 				(char_u *)"courier",
1943 # endif
1944 				(char_u *)0L}
1945 #else
1946 			    (char_u *)NULL, PV_NONE,
1947 			    {(char_u *)NULL, (char_u *)0L}
1948 #endif
1949 			    SCRIPTID_INIT},
1950     {"printheader", "pheader",  P_STRING|P_VI_DEF|P_GETTEXT,
1951 #ifdef FEAT_PRINTER
1952 			    (char_u *)&p_header, PV_NONE,
1953 			    {(char_u *)N_("%<%f%h%m%=Page %N"), (char_u *)0L}
1954 #else
1955 			    (char_u *)NULL, PV_NONE,
1956 			    {(char_u *)NULL, (char_u *)0L}
1957 #endif
1958 			    SCRIPTID_INIT},
1959    {"printmbcharset", "pmbcs",  P_STRING|P_VI_DEF,
1960 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
1961 			    (char_u *)&p_pmcs, PV_NONE,
1962 			    {(char_u *)"", (char_u *)0L}
1963 #else
1964 			    (char_u *)NULL, PV_NONE,
1965 			    {(char_u *)NULL, (char_u *)0L}
1966 #endif
1967 			    SCRIPTID_INIT},
1968     {"printmbfont", "pmbfn",  P_STRING|P_VI_DEF,
1969 #if defined(FEAT_POSTSCRIPT) && defined(FEAT_MBYTE)
1970 			    (char_u *)&p_pmfn, PV_NONE,
1971 			    {(char_u *)"", (char_u *)0L}
1972 #else
1973 			    (char_u *)NULL, PV_NONE,
1974 			    {(char_u *)NULL, (char_u *)0L}
1975 #endif
1976 			    SCRIPTID_INIT},
1977     {"printoptions", "popt", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
1978 #ifdef FEAT_PRINTER
1979 			    (char_u *)&p_popt, PV_NONE,
1980 			    {(char_u *)"", (char_u *)0L}
1981 #else
1982 			    (char_u *)NULL, PV_NONE,
1983 			    {(char_u *)NULL, (char_u *)0L}
1984 #endif
1985 			    SCRIPTID_INIT},
1986     {"prompt",	    NULL,   P_BOOL|P_VI_DEF,
1987 			    (char_u *)&p_prompt, PV_NONE,
1988 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
1989     {"pumheight",   "ph",   P_NUM|P_VI_DEF,
1990 #ifdef FEAT_INS_EXPAND
1991 			    (char_u *)&p_ph, PV_NONE,
1992 #else
1993 			    (char_u *)NULL, PV_NONE,
1994 #endif
1995 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
1996     {"quoteescape", "qe",   P_STRING|P_ALLOCED|P_VI_DEF,
1997 #ifdef FEAT_TEXTOBJ
1998 			    (char_u *)&p_qe, PV_QE,
1999 			    {(char_u *)"\\", (char_u *)0L}
2000 #else
2001 			    (char_u *)NULL, PV_NONE,
2002 			    {(char_u *)NULL, (char_u *)0L}
2003 #endif
2004 			    SCRIPTID_INIT},
2005     {"readonly",    "ro",   P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
2006 			    (char_u *)&p_ro, PV_RO,
2007 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2008     {"redraw",	    NULL,   P_BOOL|P_VI_DEF,
2009 			    (char_u *)NULL, PV_NONE,
2010 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2011     {"redrawtime",  "rdt",  P_NUM|P_VI_DEF,
2012 #ifdef FEAT_RELTIME
2013 			    (char_u *)&p_rdt, PV_NONE,
2014 #else
2015 			    (char_u *)NULL, PV_NONE,
2016 #endif
2017 			    {(char_u *)2000L, (char_u *)0L} SCRIPTID_INIT},
2018     {"remap",	    NULL,   P_BOOL|P_VI_DEF,
2019 			    (char_u *)&p_remap, PV_NONE,
2020 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2021     {"report",	    NULL,   P_NUM|P_VI_DEF,
2022 			    (char_u *)&p_report, PV_NONE,
2023 			    {(char_u *)2L, (char_u *)0L} SCRIPTID_INIT},
2024     {"restorescreen", "rs", P_BOOL|P_VI_DEF,
2025 #ifdef WIN3264
2026 			    (char_u *)&p_rs, PV_NONE,
2027 #else
2028 			    (char_u *)NULL, PV_NONE,
2029 #endif
2030 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2031     {"revins",	    "ri",   P_BOOL|P_VI_DEF|P_VIM,
2032 #ifdef FEAT_RIGHTLEFT
2033 			    (char_u *)&p_ri, PV_NONE,
2034 #else
2035 			    (char_u *)NULL, PV_NONE,
2036 #endif
2037 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2038     {"rightleft",   "rl",   P_BOOL|P_VI_DEF|P_RWIN,
2039 #ifdef FEAT_RIGHTLEFT
2040 			    (char_u *)VAR_WIN, PV_RL,
2041 #else
2042 			    (char_u *)NULL, PV_NONE,
2043 #endif
2044 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2045     {"rightleftcmd", "rlc", P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN,
2046 #ifdef FEAT_RIGHTLEFT
2047 			    (char_u *)VAR_WIN, PV_RLC,
2048 			    {(char_u *)"search", (char_u *)NULL}
2049 #else
2050 			    (char_u *)NULL, PV_NONE,
2051 			    {(char_u *)NULL, (char_u *)0L}
2052 #endif
2053 			    SCRIPTID_INIT},
2054     {"ruler",	    "ru",   P_BOOL|P_VI_DEF|P_VIM|P_RSTAT,
2055 #ifdef FEAT_CMDL_INFO
2056 			    (char_u *)&p_ru, PV_NONE,
2057 #else
2058 			    (char_u *)NULL, PV_NONE,
2059 #endif
2060 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2061     {"rulerformat", "ruf",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2062 #ifdef FEAT_STL_OPT
2063 			    (char_u *)&p_ruf, PV_NONE,
2064 #else
2065 			    (char_u *)NULL, PV_NONE,
2066 #endif
2067 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2068     {"runtimepath", "rtp",  P_STRING|P_VI_DEF|P_EXPAND|P_COMMA|P_NODUP|P_SECURE,
2069 			    (char_u *)&p_rtp, PV_NONE,
2070 			    {(char_u *)DFLT_RUNTIMEPATH, (char_u *)0L}
2071 			    SCRIPTID_INIT},
2072     {"scroll",	    "scr",  P_NUM|P_NO_MKRC|P_VI_DEF,
2073 			    (char_u *)VAR_WIN, PV_SCROLL,
2074 			    {(char_u *)12L, (char_u *)0L} SCRIPTID_INIT},
2075     {"scrollbind",  "scb",  P_BOOL|P_VI_DEF,
2076 #ifdef FEAT_SCROLLBIND
2077 			    (char_u *)VAR_WIN, PV_SCBIND,
2078 #else
2079 			    (char_u *)NULL, PV_NONE,
2080 #endif
2081 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2082     {"scrolljump",  "sj",   P_NUM|P_VI_DEF|P_VIM,
2083 			    (char_u *)&p_sj, PV_NONE,
2084 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2085     {"scrolloff",   "so",   P_NUM|P_VI_DEF|P_VIM|P_RALL,
2086 			    (char_u *)&p_so, PV_NONE,
2087 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2088     {"scrollopt",   "sbo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2089 #ifdef FEAT_SCROLLBIND
2090 			    (char_u *)&p_sbo, PV_NONE,
2091 			    {(char_u *)"ver,jump", (char_u *)0L}
2092 #else
2093 			    (char_u *)NULL, PV_NONE,
2094 			    {(char_u *)0L, (char_u *)0L}
2095 #endif
2096 			    SCRIPTID_INIT},
2097     {"sections",    "sect", P_STRING|P_VI_DEF,
2098 			    (char_u *)&p_sections, PV_NONE,
2099 			    {(char_u *)"SHNHH HUnhsh", (char_u *)0L}
2100 			    SCRIPTID_INIT},
2101     {"secure",	    NULL,   P_BOOL|P_VI_DEF|P_SECURE,
2102 			    (char_u *)&p_secure, PV_NONE,
2103 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2104     {"selection",   "sel",  P_STRING|P_VI_DEF,
2105 #ifdef FEAT_VISUAL
2106 			    (char_u *)&p_sel, PV_NONE,
2107 #else
2108 			    (char_u *)NULL, PV_NONE,
2109 #endif
2110 			    {(char_u *)"inclusive", (char_u *)0L}
2111 			    SCRIPTID_INIT},
2112     {"selectmode",  "slm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2113 #ifdef FEAT_VISUAL
2114 			    (char_u *)&p_slm, PV_NONE,
2115 #else
2116 			    (char_u *)NULL, PV_NONE,
2117 #endif
2118 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2119     {"sessionoptions", "ssop", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2120 #ifdef FEAT_SESSION
2121 			    (char_u *)&p_ssop, PV_NONE,
2122 	 {(char_u *)"blank,buffers,curdir,folds,help,options,tabpages,winsize",
2123 							       (char_u *)0L}
2124 #else
2125 			    (char_u *)NULL, PV_NONE,
2126 			    {(char_u *)0L, (char_u *)0L}
2127 #endif
2128 			    SCRIPTID_INIT},
2129     {"shell",	    "sh",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2130 			    (char_u *)&p_sh, PV_NONE,
2131 			    {
2132 #ifdef VMS
2133 			    (char_u *)"-",
2134 #else
2135 # if defined(MSDOS)
2136 			    (char_u *)"command",
2137 # else
2138 #  if defined(WIN16)
2139 			    (char_u *)"command.com",
2140 #  else
2141 #   if defined(WIN3264)
2142 			    (char_u *)"",	/* set in set_init_1() */
2143 #   else
2144 #    if defined(OS2)
2145 			    (char_u *)"cmd.exe",
2146 #    else
2147 #     if defined(ARCHIE)
2148 			    (char_u *)"gos",
2149 #     else
2150 			    (char_u *)"sh",
2151 #     endif
2152 #    endif
2153 #   endif
2154 #  endif
2155 # endif
2156 #endif /* VMS */
2157 				(char_u *)0L} SCRIPTID_INIT},
2158     {"shellcmdflag","shcf", P_STRING|P_VI_DEF|P_SECURE,
2159 			    (char_u *)&p_shcf, PV_NONE,
2160 			    {
2161 #if defined(MSDOS) || defined(MSWIN)
2162 			    (char_u *)"/c",
2163 #else
2164 # if defined(OS2)
2165 			    (char_u *)"/c",
2166 # else
2167 			    (char_u *)"-c",
2168 # endif
2169 #endif
2170 				(char_u *)0L} SCRIPTID_INIT},
2171     {"shellpipe",   "sp",   P_STRING|P_VI_DEF|P_SECURE,
2172 #ifdef FEAT_QUICKFIX
2173 			    (char_u *)&p_sp, PV_NONE,
2174 			    {
2175 #if defined(UNIX) || defined(OS2)
2176 # ifdef ARCHIE
2177 			    (char_u *)"2>",
2178 # else
2179 			    (char_u *)"| tee",
2180 # endif
2181 #else
2182 			    (char_u *)">",
2183 #endif
2184 				(char_u *)0L}
2185 #else
2186 			    (char_u *)NULL, PV_NONE,
2187 			    {(char_u *)0L, (char_u *)0L}
2188 #endif
2189 			    SCRIPTID_INIT},
2190     {"shellquote",  "shq",  P_STRING|P_VI_DEF|P_SECURE,
2191 			    (char_u *)&p_shq, PV_NONE,
2192 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2193     {"shellredir",  "srr",  P_STRING|P_VI_DEF|P_SECURE,
2194 			    (char_u *)&p_srr, PV_NONE,
2195 			    {(char_u *)">", (char_u *)0L} SCRIPTID_INIT},
2196     {"shellslash",  "ssl",   P_BOOL|P_VI_DEF,
2197 #ifdef BACKSLASH_IN_FILENAME
2198 			    (char_u *)&p_ssl, PV_NONE,
2199 #else
2200 			    (char_u *)NULL, PV_NONE,
2201 #endif
2202 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2203     {"shelltemp",   "stmp", P_BOOL,
2204 			    (char_u *)&p_stmp, PV_NONE,
2205 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2206     {"shelltype",   "st",   P_NUM|P_VI_DEF,
2207 #ifdef AMIGA
2208 			    (char_u *)&p_st, PV_NONE,
2209 #else
2210 			    (char_u *)NULL, PV_NONE,
2211 #endif
2212 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2213     {"shellxquote", "sxq",  P_STRING|P_VI_DEF|P_SECURE,
2214 			    (char_u *)&p_sxq, PV_NONE,
2215 			    {
2216 #if defined(UNIX) && defined(USE_SYSTEM) && !defined(__EMX__)
2217 			    (char_u *)"\"",
2218 #else
2219 			    (char_u *)"",
2220 #endif
2221 				(char_u *)0L} SCRIPTID_INIT},
2222     {"shiftround",  "sr",   P_BOOL|P_VI_DEF|P_VIM,
2223 			    (char_u *)&p_sr, PV_NONE,
2224 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2225     {"shiftwidth",  "sw",   P_NUM|P_VI_DEF,
2226 			    (char_u *)&p_sw, PV_SW,
2227 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2228     {"shortmess",   "shm",  P_STRING|P_VIM|P_FLAGLIST,
2229 			    (char_u *)&p_shm, PV_NONE,
2230 			    {(char_u *)"", (char_u *)"filnxtToO"}
2231 			    SCRIPTID_INIT},
2232     {"shortname",   "sn",   P_BOOL|P_VI_DEF,
2233 #ifdef SHORT_FNAME
2234 			    (char_u *)NULL, PV_NONE,
2235 #else
2236 			    (char_u *)&p_sn, PV_SN,
2237 #endif
2238 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2239     {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
2240 #ifdef FEAT_LINEBREAK
2241 			    (char_u *)&p_sbr, PV_NONE,
2242 #else
2243 			    (char_u *)NULL, PV_NONE,
2244 #endif
2245 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2246     {"showcmd",	    "sc",   P_BOOL|P_VIM,
2247 #ifdef FEAT_CMDL_INFO
2248 			    (char_u *)&p_sc, PV_NONE,
2249 #else
2250 			    (char_u *)NULL, PV_NONE,
2251 #endif
2252 			    {(char_u *)FALSE,
2253 #ifdef UNIX
2254 				(char_u *)FALSE
2255 #else
2256 				(char_u *)TRUE
2257 #endif
2258 				} SCRIPTID_INIT},
2259     {"showfulltag", "sft",  P_BOOL|P_VI_DEF,
2260 			    (char_u *)&p_sft, PV_NONE,
2261 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2262     {"showmatch",   "sm",   P_BOOL|P_VI_DEF,
2263 			    (char_u *)&p_sm, PV_NONE,
2264 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2265     {"showmode",    "smd",  P_BOOL|P_VIM,
2266 			    (char_u *)&p_smd, PV_NONE,
2267 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2268     {"showtabline", "stal", P_NUM|P_VI_DEF|P_RALL,
2269 #ifdef FEAT_WINDOWS
2270 			    (char_u *)&p_stal, PV_NONE,
2271 #else
2272 			    (char_u *)NULL, PV_NONE,
2273 #endif
2274 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2275     {"sidescroll",  "ss",   P_NUM|P_VI_DEF,
2276 			    (char_u *)&p_ss, PV_NONE,
2277 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2278     {"sidescrolloff", "siso", P_NUM|P_VI_DEF|P_VIM|P_RBUF,
2279 			    (char_u *)&p_siso, PV_NONE,
2280 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2281     {"slowopen",    "slow", P_BOOL|P_VI_DEF,
2282 			    (char_u *)NULL, PV_NONE,
2283 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2284     {"smartcase",   "scs",  P_BOOL|P_VI_DEF|P_VIM,
2285 			    (char_u *)&p_scs, PV_NONE,
2286 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2287     {"smartindent", "si",   P_BOOL|P_VI_DEF|P_VIM,
2288 #ifdef FEAT_SMARTINDENT
2289 			    (char_u *)&p_si, PV_SI,
2290 #else
2291 			    (char_u *)NULL, PV_NONE,
2292 #endif
2293 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2294     {"smarttab",    "sta",  P_BOOL|P_VI_DEF|P_VIM,
2295 			    (char_u *)&p_sta, PV_NONE,
2296 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2297     {"softtabstop", "sts",  P_NUM|P_VI_DEF|P_VIM,
2298 			    (char_u *)&p_sts, PV_STS,
2299 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2300     {"sourceany",   NULL,   P_BOOL|P_VI_DEF,
2301 			    (char_u *)NULL, PV_NONE,
2302 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2303     {"spell",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2304 #ifdef FEAT_SPELL
2305 			    (char_u *)VAR_WIN, PV_SPELL,
2306 #else
2307 			    (char_u *)NULL, PV_NONE,
2308 #endif
2309 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2310     {"spellcapcheck", "spc", P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF,
2311 #ifdef FEAT_SPELL
2312 			    (char_u *)&p_spc, PV_SPC,
2313 			    {(char_u *)"[.?!]\\_[\\])'\"	 ]\\+", (char_u *)0L}
2314 #else
2315 			    (char_u *)NULL, PV_NONE,
2316 			    {(char_u *)0L, (char_u *)0L}
2317 #endif
2318 			    SCRIPTID_INIT},
2319     {"spellfile",   "spf",  P_STRING|P_EXPAND|P_ALLOCED|P_VI_DEF|P_SECURE|P_COMMA,
2320 #ifdef FEAT_SPELL
2321 			    (char_u *)&p_spf, PV_SPF,
2322 			    {(char_u *)"", (char_u *)0L}
2323 #else
2324 			    (char_u *)NULL, PV_NONE,
2325 			    {(char_u *)0L, (char_u *)0L}
2326 #endif
2327 			    SCRIPTID_INIT},
2328     {"spelllang",   "spl",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_RBUF|P_EXPAND,
2329 #ifdef FEAT_SPELL
2330 			    (char_u *)&p_spl, PV_SPL,
2331 			    {(char_u *)"en", (char_u *)0L}
2332 #else
2333 			    (char_u *)NULL, PV_NONE,
2334 			    {(char_u *)0L, (char_u *)0L}
2335 #endif
2336 			    SCRIPTID_INIT},
2337     {"spellsuggest", "sps", P_STRING|P_VI_DEF|P_EXPAND|P_SECURE|P_COMMA,
2338 #ifdef FEAT_SPELL
2339 			    (char_u *)&p_sps, PV_NONE,
2340 			    {(char_u *)"best", (char_u *)0L}
2341 #else
2342 			    (char_u *)NULL, PV_NONE,
2343 			    {(char_u *)0L, (char_u *)0L}
2344 #endif
2345 			    SCRIPTID_INIT},
2346     {"splitbelow",  "sb",   P_BOOL|P_VI_DEF,
2347 #ifdef FEAT_WINDOWS
2348 			    (char_u *)&p_sb, PV_NONE,
2349 #else
2350 			    (char_u *)NULL, PV_NONE,
2351 #endif
2352 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2353     {"splitright",  "spr",  P_BOOL|P_VI_DEF,
2354 #ifdef FEAT_VERTSPLIT
2355 			    (char_u *)&p_spr, PV_NONE,
2356 #else
2357 			    (char_u *)NULL, PV_NONE,
2358 #endif
2359 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2360     {"startofline", "sol",  P_BOOL|P_VI_DEF|P_VIM,
2361 			    (char_u *)&p_sol, PV_NONE,
2362 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2363     {"statusline"  ,"stl",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
2364 #ifdef FEAT_STL_OPT
2365 			    (char_u *)&p_stl, PV_STL,
2366 #else
2367 			    (char_u *)NULL, PV_NONE,
2368 #endif
2369 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2370     {"suffixes",    "su",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2371 			    (char_u *)&p_su, PV_NONE,
2372 			    {(char_u *)".bak,~,.o,.h,.info,.swp,.obj",
2373 				(char_u *)0L} SCRIPTID_INIT},
2374     {"suffixesadd", "sua",  P_STRING|P_VI_DEF|P_ALLOCED|P_COMMA|P_NODUP,
2375 #ifdef FEAT_SEARCHPATH
2376 			    (char_u *)&p_sua, PV_SUA,
2377 			    {(char_u *)"", (char_u *)0L}
2378 #else
2379 			    (char_u *)NULL, PV_NONE,
2380 			    {(char_u *)0L, (char_u *)0L}
2381 #endif
2382 			    SCRIPTID_INIT},
2383     {"swapfile",    "swf",  P_BOOL|P_VI_DEF|P_RSTAT,
2384 			    (char_u *)&p_swf, PV_SWF,
2385 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2386     {"swapsync",    "sws",  P_STRING|P_VI_DEF,
2387 			    (char_u *)&p_sws, PV_NONE,
2388 			    {(char_u *)"fsync", (char_u *)0L} SCRIPTID_INIT},
2389     {"switchbuf",   "swb",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2390 			    (char_u *)&p_swb, PV_NONE,
2391 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2392     {"synmaxcol",   "smc",  P_NUM|P_VI_DEF|P_RBUF,
2393 #ifdef FEAT_SYN_HL
2394 			    (char_u *)&p_smc, PV_SMC,
2395 			    {(char_u *)3000L, (char_u *)0L}
2396 #else
2397 			    (char_u *)NULL, PV_NONE,
2398 			    {(char_u *)0L, (char_u *)0L}
2399 #endif
2400 			    SCRIPTID_INIT},
2401     {"syntax",	    "syn",  P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB|P_NFNAME,
2402 #ifdef FEAT_SYN_HL
2403 			    (char_u *)&p_syn, PV_SYN,
2404 			    {(char_u *)"", (char_u *)0L}
2405 #else
2406 			    (char_u *)NULL, PV_NONE,
2407 			    {(char_u *)0L, (char_u *)0L}
2408 #endif
2409 			    SCRIPTID_INIT},
2410     {"tabline",	    "tal",  P_STRING|P_VI_DEF|P_RALL,
2411 #ifdef FEAT_STL_OPT
2412 			    (char_u *)&p_tal, PV_NONE,
2413 #else
2414 			    (char_u *)NULL, PV_NONE,
2415 #endif
2416 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2417     {"tabpagemax",  "tpm",  P_NUM|P_VI_DEF,
2418 #ifdef FEAT_WINDOWS
2419 			    (char_u *)&p_tpm, PV_NONE,
2420 #else
2421 			    (char_u *)NULL, PV_NONE,
2422 #endif
2423 			    {(char_u *)10L, (char_u *)0L} SCRIPTID_INIT},
2424     {"tabstop",	    "ts",   P_NUM|P_VI_DEF|P_RBUF,
2425 			    (char_u *)&p_ts, PV_TS,
2426 			    {(char_u *)8L, (char_u *)0L} SCRIPTID_INIT},
2427     {"tagbsearch",  "tbs",   P_BOOL|P_VI_DEF,
2428 			    (char_u *)&p_tbs, PV_NONE,
2429 #ifdef VMS	/* binary searching doesn't appear to work on VMS */
2430 			    {(char_u *)0L, (char_u *)0L}
2431 #else
2432 			    {(char_u *)TRUE, (char_u *)0L}
2433 #endif
2434 			    SCRIPTID_INIT},
2435     {"taglength",   "tl",   P_NUM|P_VI_DEF,
2436 			    (char_u *)&p_tl, PV_NONE,
2437 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2438     {"tagrelative", "tr",   P_BOOL|P_VIM,
2439 			    (char_u *)&p_tr, PV_NONE,
2440 			    {(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
2441     {"tags",	    "tag",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
2442 			    (char_u *)&p_tags, PV_TAGS,
2443 			    {
2444 #if defined(FEAT_EMACS_TAGS) && !defined(CASE_INSENSITIVE_FILENAME)
2445 			    (char_u *)"./tags,./TAGS,tags,TAGS",
2446 #else
2447 			    (char_u *)"./tags,tags",
2448 #endif
2449 				(char_u *)0L} SCRIPTID_INIT},
2450     {"tagstack",    "tgst", P_BOOL|P_VI_DEF,
2451 			    (char_u *)&p_tgst, PV_NONE,
2452 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2453     {"term",	    NULL,   P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2454 			    (char_u *)&T_NAME, PV_NONE,
2455 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2456     {"termbidi", "tbidi",   P_BOOL|P_VI_DEF,
2457 #ifdef FEAT_ARABIC
2458 			    (char_u *)&p_tbidi, PV_NONE,
2459 #else
2460 			    (char_u *)NULL, PV_NONE,
2461 #endif
2462 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2463     {"termencoding", "tenc", P_STRING|P_VI_DEF|P_RCLR,
2464 #ifdef FEAT_MBYTE
2465 			    (char_u *)&p_tenc, PV_NONE,
2466 			    {(char_u *)"", (char_u *)0L}
2467 #else
2468 			    (char_u *)NULL, PV_NONE,
2469 			    {(char_u *)0L, (char_u *)0L}
2470 #endif
2471 			    SCRIPTID_INIT},
2472     {"terse",	    NULL,   P_BOOL|P_VI_DEF,
2473 			    (char_u *)&p_terse, PV_NONE,
2474 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2475     {"textauto",    "ta",   P_BOOL|P_VIM,
2476 			    (char_u *)&p_ta, PV_NONE,
2477 			    {(char_u *)DFLT_TEXTAUTO, (char_u *)TRUE}
2478 			    SCRIPTID_INIT},
2479     {"textmode",    "tx",   P_BOOL|P_VI_DEF|P_NO_MKRC,
2480 			    (char_u *)&p_tx, PV_TX,
2481 			    {
2482 #ifdef USE_CRNL
2483 			    (char_u *)TRUE,
2484 #else
2485 			    (char_u *)FALSE,
2486 #endif
2487 				(char_u *)0L} SCRIPTID_INIT},
2488     {"textwidth",   "tw",   P_NUM|P_VI_DEF|P_VIM,
2489 			    (char_u *)&p_tw, PV_TW,
2490 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2491     {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
2492 #ifdef FEAT_INS_EXPAND
2493 			    (char_u *)&p_tsr, PV_TSR,
2494 #else
2495 			    (char_u *)NULL, PV_NONE,
2496 #endif
2497 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2498     {"tildeop",	    "top",  P_BOOL|P_VI_DEF|P_VIM,
2499 			    (char_u *)&p_to, PV_NONE,
2500 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2501     {"timeout",	    "to",   P_BOOL|P_VI_DEF,
2502 			    (char_u *)&p_timeout, PV_NONE,
2503 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2504     {"timeoutlen",  "tm",   P_NUM|P_VI_DEF,
2505 			    (char_u *)&p_tm, PV_NONE,
2506 			    {(char_u *)1000L, (char_u *)0L} SCRIPTID_INIT},
2507     {"title",	    NULL,   P_BOOL|P_VI_DEF,
2508 #ifdef FEAT_TITLE
2509 			    (char_u *)&p_title, PV_NONE,
2510 #else
2511 			    (char_u *)NULL, PV_NONE,
2512 #endif
2513 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2514     {"titlelen",    NULL,   P_NUM|P_VI_DEF,
2515 #ifdef FEAT_TITLE
2516 			    (char_u *)&p_titlelen, PV_NONE,
2517 #else
2518 			    (char_u *)NULL, PV_NONE,
2519 #endif
2520 			    {(char_u *)85L, (char_u *)0L} SCRIPTID_INIT},
2521     {"titleold",    NULL,   P_STRING|P_VI_DEF|P_GETTEXT|P_SECURE|P_NO_MKRC,
2522 #ifdef FEAT_TITLE
2523 			    (char_u *)&p_titleold, PV_NONE,
2524 			    {(char_u *)N_("Thanks for flying Vim"),
2525 							       (char_u *)0L}
2526 #else
2527 			    (char_u *)NULL, PV_NONE,
2528 			    {(char_u *)0L, (char_u *)0L}
2529 #endif
2530 			    SCRIPTID_INIT},
2531     {"titlestring", NULL,   P_STRING|P_VI_DEF,
2532 #ifdef FEAT_TITLE
2533 			    (char_u *)&p_titlestring, PV_NONE,
2534 #else
2535 			    (char_u *)NULL, PV_NONE,
2536 #endif
2537 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2538 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
2539     {"toolbar",     "tb",   P_STRING|P_COMMA|P_VI_DEF|P_NODUP,
2540 			    (char_u *)&p_toolbar, PV_NONE,
2541 			    {(char_u *)"icons,tooltips", (char_u *)0L}
2542 			    SCRIPTID_INIT},
2543 #endif
2544 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
2545     {"toolbariconsize",	"tbis", P_STRING|P_VI_DEF,
2546 			    (char_u *)&p_tbis, PV_NONE,
2547 			    {(char_u *)"small", (char_u *)0L} SCRIPTID_INIT},
2548 #endif
2549     {"ttimeout",    NULL,   P_BOOL|P_VI_DEF|P_VIM,
2550 			    (char_u *)&p_ttimeout, PV_NONE,
2551 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2552     {"ttimeoutlen", "ttm",  P_NUM|P_VI_DEF,
2553 			    (char_u *)&p_ttm, PV_NONE,
2554 			    {(char_u *)-1L, (char_u *)0L} SCRIPTID_INIT},
2555     {"ttybuiltin",  "tbi",  P_BOOL|P_VI_DEF,
2556 			    (char_u *)&p_tbi, PV_NONE,
2557 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2558     {"ttyfast",	    "tf",   P_BOOL|P_NO_MKRC|P_VI_DEF,
2559 			    (char_u *)&p_tf, PV_NONE,
2560 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2561     {"ttymouse",    "ttym", P_STRING|P_NODEFAULT|P_NO_MKRC|P_VI_DEF,
2562 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
2563 			    (char_u *)&p_ttym, PV_NONE,
2564 #else
2565 			    (char_u *)NULL, PV_NONE,
2566 #endif
2567 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2568     {"ttyscroll",   "tsl",  P_NUM|P_VI_DEF,
2569 			    (char_u *)&p_ttyscroll, PV_NONE,
2570 			    {(char_u *)999L, (char_u *)0L} SCRIPTID_INIT},
2571     {"ttytype",	    "tty",  P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
2572 			    (char_u *)&T_NAME, PV_NONE,
2573 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2574     {"undolevels",  "ul",   P_NUM|P_VI_DEF,
2575 			    (char_u *)&p_ul, PV_NONE,
2576 			    {
2577 #if defined(UNIX) || defined(WIN3264) || defined(OS2) || defined(VMS)
2578 			    (char_u *)1000L,
2579 #else
2580 			    (char_u *)100L,
2581 #endif
2582 				(char_u *)0L} SCRIPTID_INIT},
2583     {"updatecount", "uc",   P_NUM|P_VI_DEF,
2584 			    (char_u *)&p_uc, PV_NONE,
2585 			    {(char_u *)200L, (char_u *)0L} SCRIPTID_INIT},
2586     {"updatetime",  "ut",   P_NUM|P_VI_DEF,
2587 			    (char_u *)&p_ut, PV_NONE,
2588 			    {(char_u *)4000L, (char_u *)0L} SCRIPTID_INIT},
2589     {"verbose",	    "vbs",  P_NUM|P_VI_DEF,
2590 			    (char_u *)&p_verbose, PV_NONE,
2591 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2592     {"verbosefile", "vfile", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2593 			    (char_u *)&p_vfile, PV_NONE,
2594 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2595     {"viewdir",     "vdir", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
2596 #ifdef FEAT_SESSION
2597 			    (char_u *)&p_vdir, PV_NONE,
2598 			    {(char_u *)DFLT_VDIR, (char_u *)0L}
2599 #else
2600 			    (char_u *)NULL, PV_NONE,
2601 			    {(char_u *)0L, (char_u *)0L}
2602 #endif
2603 			    SCRIPTID_INIT},
2604     {"viewoptions", "vop",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2605 #ifdef FEAT_SESSION
2606 			    (char_u *)&p_vop, PV_NONE,
2607 			    {(char_u *)"folds,options,cursor", (char_u *)0L}
2608 #else
2609 			    (char_u *)NULL, PV_NONE,
2610 			    {(char_u *)0L, (char_u *)0L}
2611 #endif
2612 			    SCRIPTID_INIT},
2613     {"viminfo",	    "vi",   P_STRING|P_COMMA|P_NODUP|P_SECURE,
2614 #ifdef FEAT_VIMINFO
2615 			    (char_u *)&p_viminfo, PV_NONE,
2616 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
2617 			    {(char_u *)"", (char_u *)"'100,<50,s10,h,rA:,rB:"}
2618 #else
2619 # ifdef AMIGA
2620 			    {(char_u *)"",
2621 				 (char_u *)"'100,<50,s10,h,rdf0:,rdf1:,rdf2:"}
2622 # else
2623 			    {(char_u *)"", (char_u *)"'100,<50,s10,h"}
2624 # endif
2625 #endif
2626 #else
2627 			    (char_u *)NULL, PV_NONE,
2628 			    {(char_u *)0L, (char_u *)0L}
2629 #endif
2630 			    SCRIPTID_INIT},
2631     {"virtualedit", "ve",   P_STRING|P_COMMA|P_NODUP|P_VI_DEF|P_VIM,
2632 #ifdef FEAT_VIRTUALEDIT
2633 			    (char_u *)&p_ve, PV_NONE,
2634 			    {(char_u *)"", (char_u *)""}
2635 #else
2636 			    (char_u *)NULL, PV_NONE,
2637 			    {(char_u *)0L, (char_u *)0L}
2638 #endif
2639 			    SCRIPTID_INIT},
2640     {"visualbell",  "vb",   P_BOOL|P_VI_DEF,
2641 			    (char_u *)&p_vb, PV_NONE,
2642 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2643     {"w300",	    NULL,   P_NUM|P_VI_DEF,
2644 			    (char_u *)NULL, PV_NONE,
2645 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2646     {"w1200",	    NULL,   P_NUM|P_VI_DEF,
2647 			    (char_u *)NULL, PV_NONE,
2648 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2649     {"w9600",	    NULL,   P_NUM|P_VI_DEF,
2650 			    (char_u *)NULL, PV_NONE,
2651 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2652     {"warn",	    NULL,   P_BOOL|P_VI_DEF,
2653 			    (char_u *)&p_warn, PV_NONE,
2654 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2655     {"weirdinvert", "wiv",  P_BOOL|P_VI_DEF|P_RCLR,
2656 			    (char_u *)&p_wiv, PV_NONE,
2657 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2658     {"whichwrap",   "ww",   P_STRING|P_VIM|P_COMMA|P_FLAGLIST,
2659 			    (char_u *)&p_ww, PV_NONE,
2660 			    {(char_u *)"", (char_u *)"b,s"} SCRIPTID_INIT},
2661     {"wildchar",    "wc",   P_NUM|P_VIM,
2662 			    (char_u *)&p_wc, PV_NONE,
2663 			    {(char_u *)(long)Ctrl_E, (char_u *)(long)TAB}
2664 			    SCRIPTID_INIT},
2665     {"wildcharm",   "wcm",   P_NUM|P_VI_DEF,
2666 			    (char_u *)&p_wcm, PV_NONE,
2667 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2668     {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2669 #ifdef FEAT_WILDIGN
2670 			    (char_u *)&p_wig, PV_NONE,
2671 #else
2672 			    (char_u *)NULL, PV_NONE,
2673 #endif
2674 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2675     {"wildmenu",    "wmnu", P_BOOL|P_VI_DEF,
2676 #ifdef FEAT_WILDMENU
2677 			    (char_u *)&p_wmnu, PV_NONE,
2678 #else
2679 			    (char_u *)NULL, PV_NONE,
2680 #endif
2681 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2682     {"wildmode",    "wim",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
2683 			    (char_u *)&p_wim, PV_NONE,
2684 			    {(char_u *)"full", (char_u *)0L} SCRIPTID_INIT},
2685     {"wildoptions", "wop",  P_STRING|P_VI_DEF,
2686 #ifdef FEAT_CMDL_COMPL
2687 			    (char_u *)&p_wop, PV_NONE,
2688 			    {(char_u *)"", (char_u *)0L}
2689 #else
2690 			    (char_u *)NULL, PV_NONE,
2691 			    {(char_u *)NULL, (char_u *)0L}
2692 #endif
2693 			    SCRIPTID_INIT},
2694     {"winaltkeys",  "wak",  P_STRING|P_VI_DEF,
2695 #ifdef FEAT_WAK
2696 			    (char_u *)&p_wak, PV_NONE,
2697 			    {(char_u *)"menu", (char_u *)0L}
2698 #else
2699 			    (char_u *)NULL, PV_NONE,
2700 			    {(char_u *)NULL, (char_u *)0L}
2701 #endif
2702 			    SCRIPTID_INIT},
2703     {"window",	    "wi",   P_NUM|P_VI_DEF,
2704 			    (char_u *)&p_window, PV_NONE,
2705 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2706     {"winheight",   "wh",   P_NUM|P_VI_DEF,
2707 #ifdef FEAT_WINDOWS
2708 			    (char_u *)&p_wh, PV_NONE,
2709 #else
2710 			    (char_u *)NULL, PV_NONE,
2711 #endif
2712 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2713     {"winfixheight", "wfh", P_BOOL|P_VI_DEF|P_RSTAT,
2714 #ifdef FEAT_WINDOWS
2715 			    (char_u *)VAR_WIN, PV_WFH,
2716 #else
2717 			    (char_u *)NULL, PV_NONE,
2718 #endif
2719 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2720     {"winfixwidth", "wfw", P_BOOL|P_VI_DEF|P_RSTAT,
2721 #ifdef FEAT_VERTSPLIT
2722 			    (char_u *)VAR_WIN, PV_WFW,
2723 #else
2724 			    (char_u *)NULL, PV_NONE,
2725 #endif
2726 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2727     {"winminheight", "wmh", P_NUM|P_VI_DEF,
2728 #ifdef FEAT_WINDOWS
2729 			    (char_u *)&p_wmh, PV_NONE,
2730 #else
2731 			    (char_u *)NULL, PV_NONE,
2732 #endif
2733 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2734     {"winminwidth", "wmw", P_NUM|P_VI_DEF,
2735 #ifdef FEAT_VERTSPLIT
2736 			    (char_u *)&p_wmw, PV_NONE,
2737 #else
2738 			    (char_u *)NULL, PV_NONE,
2739 #endif
2740 			    {(char_u *)1L, (char_u *)0L} SCRIPTID_INIT},
2741     {"winwidth",   "wiw",   P_NUM|P_VI_DEF,
2742 #ifdef FEAT_VERTSPLIT
2743 			    (char_u *)&p_wiw, PV_NONE,
2744 #else
2745 			    (char_u *)NULL, PV_NONE,
2746 #endif
2747 			    {(char_u *)20L, (char_u *)0L} SCRIPTID_INIT},
2748     {"wrap",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
2749 			    (char_u *)VAR_WIN, PV_WRAP,
2750 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2751     {"wrapmargin",  "wm",   P_NUM|P_VI_DEF,
2752 			    (char_u *)&p_wm, PV_WM,
2753 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2754     {"wrapscan",    "ws",   P_BOOL|P_VI_DEF,
2755 			    (char_u *)&p_ws, PV_NONE,
2756 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2757     {"write",	    NULL,   P_BOOL|P_VI_DEF,
2758 			    (char_u *)&p_write, PV_NONE,
2759 			    {(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
2760     {"writeany",    "wa",   P_BOOL|P_VI_DEF,
2761 			    (char_u *)&p_wa, PV_NONE,
2762 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
2763     {"writebackup", "wb",   P_BOOL|P_VI_DEF|P_VIM,
2764 			    (char_u *)&p_wb, PV_NONE,
2765 			    {
2766 #ifdef FEAT_WRITEBACKUP
2767 			    (char_u *)TRUE,
2768 #else
2769 			    (char_u *)FALSE,
2770 #endif
2771 				(char_u *)0L} SCRIPTID_INIT},
2772     {"writedelay",  "wd",   P_NUM|P_VI_DEF,
2773 			    (char_u *)&p_wd, PV_NONE,
2774 			    {(char_u *)0L, (char_u *)0L} SCRIPTID_INIT},
2775 
2776 /* terminal output codes */
2777 #define p_term(sss, vvv)   {sss, NULL, P_STRING|P_VI_DEF|P_RALL|P_SECURE, \
2778 			    (char_u *)&vvv, PV_NONE, \
2779 			    {(char_u *)"", (char_u *)0L} SCRIPTID_INIT},
2780 
2781     p_term("t_AB", T_CAB)
2782     p_term("t_AF", T_CAF)
2783     p_term("t_AL", T_CAL)
2784     p_term("t_al", T_AL)
2785     p_term("t_bc", T_BC)
2786     p_term("t_cd", T_CD)
2787     p_term("t_ce", T_CE)
2788     p_term("t_cl", T_CL)
2789     p_term("t_cm", T_CM)
2790     p_term("t_Co", T_CCO)
2791     p_term("t_CS", T_CCS)
2792     p_term("t_cs", T_CS)
2793 #ifdef FEAT_VERTSPLIT
2794     p_term("t_CV", T_CSV)
2795 #endif
2796     p_term("t_ut", T_UT)
2797     p_term("t_da", T_DA)
2798     p_term("t_db", T_DB)
2799     p_term("t_DL", T_CDL)
2800     p_term("t_dl", T_DL)
2801     p_term("t_fs", T_FS)
2802     p_term("t_IE", T_CIE)
2803     p_term("t_IS", T_CIS)
2804     p_term("t_ke", T_KE)
2805     p_term("t_ks", T_KS)
2806     p_term("t_le", T_LE)
2807     p_term("t_mb", T_MB)
2808     p_term("t_md", T_MD)
2809     p_term("t_me", T_ME)
2810     p_term("t_mr", T_MR)
2811     p_term("t_ms", T_MS)
2812     p_term("t_nd", T_ND)
2813     p_term("t_op", T_OP)
2814     p_term("t_RI", T_CRI)
2815     p_term("t_RV", T_CRV)
2816     p_term("t_Sb", T_CSB)
2817     p_term("t_Sf", T_CSF)
2818     p_term("t_se", T_SE)
2819     p_term("t_so", T_SO)
2820     p_term("t_sr", T_SR)
2821     p_term("t_ts", T_TS)
2822     p_term("t_te", T_TE)
2823     p_term("t_ti", T_TI)
2824     p_term("t_ue", T_UE)
2825     p_term("t_us", T_US)
2826     p_term("t_vb", T_VB)
2827     p_term("t_ve", T_VE)
2828     p_term("t_vi", T_VI)
2829     p_term("t_vs", T_VS)
2830     p_term("t_WP", T_CWP)
2831     p_term("t_WS", T_CWS)
2832     p_term("t_SI", T_CSI)
2833     p_term("t_EI", T_CEI)
2834     p_term("t_xs", T_XS)
2835     p_term("t_ZH", T_CZH)
2836     p_term("t_ZR", T_CZR)
2837 
2838 /* terminal key codes are not in here */
2839 
2840     /* end marker */
2841     {NULL, NULL, 0, NULL, PV_NONE, {NULL, NULL} SCRIPTID_INIT}
2842 };
2843 
2844 #define PARAM_COUNT (sizeof(options) / sizeof(struct vimoption))
2845 
2846 #ifdef FEAT_MBYTE
2847 static char *(p_ambw_values[]) = {"single", "double", NULL};
2848 #endif
2849 static char *(p_bg_values[]) = {"light", "dark", NULL};
2850 static char *(p_nf_values[]) = {"octal", "hex", "alpha", NULL};
2851 static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL};
2852 #ifdef FEAT_CMDL_COMPL
2853 static char *(p_wop_values[]) = {"tagfile", NULL};
2854 #endif
2855 #ifdef FEAT_WAK
2856 static char *(p_wak_values[]) = {"yes", "menu", "no", NULL};
2857 #endif
2858 static char *(p_mousem_values[]) = {"extend", "popup", "popup_setpos", "mac", NULL};
2859 #ifdef FEAT_VISUAL
2860 static char *(p_sel_values[]) = {"inclusive", "exclusive", "old", NULL};
2861 static char *(p_slm_values[]) = {"mouse", "key", "cmd", NULL};
2862 #endif
2863 #ifdef FEAT_VISUAL
2864 static char *(p_km_values[]) = {"startsel", "stopsel", NULL};
2865 #endif
2866 #ifdef FEAT_BROWSE
2867 static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL};
2868 #endif
2869 #ifdef FEAT_SCROLLBIND
2870 static char *(p_scbopt_values[]) = {"ver", "hor", "jump", NULL};
2871 #endif
2872 static char *(p_debug_values[]) = {"msg", "throw", "beep", NULL};
2873 #ifdef FEAT_VERTSPLIT
2874 static char *(p_ead_values[]) = {"both", "ver", "hor", NULL};
2875 #endif
2876 #if defined(FEAT_QUICKFIX)
2877 # ifdef FEAT_AUTOCMD
2878 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", "acwrite", NULL};
2879 # else
2880 static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", NULL};
2881 # endif
2882 static char *(p_bufhidden_values[]) = {"hide", "unload", "delete", "wipe", NULL};
2883 #endif
2884 static char *(p_bs_values[]) = {"indent", "eol", "start", NULL};
2885 #ifdef FEAT_FOLDING
2886 static char *(p_fdm_values[]) = {"manual", "expr", "marker", "indent", "syntax",
2887 # ifdef FEAT_DIFF
2888 				"diff",
2889 # endif
2890 				NULL};
2891 static char *(p_fcl_values[]) = {"all", NULL};
2892 #endif
2893 #ifdef FEAT_INS_EXPAND
2894 static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", NULL};
2895 #endif
2896 
2897 static void set_option_default __ARGS((int, int opt_flags, int compatible));
2898 static void set_options_default __ARGS((int opt_flags));
2899 static char_u *term_bg_default __ARGS((void));
2900 static void did_set_option __ARGS((int opt_idx, int opt_flags, int new_value));
2901 static char_u *illegal_char __ARGS((char_u *, int));
2902 static int string_to_key __ARGS((char_u *arg));
2903 #ifdef FEAT_CMDWIN
2904 static char_u *check_cedit __ARGS((void));
2905 #endif
2906 #ifdef FEAT_TITLE
2907 static void did_set_title __ARGS((int icon));
2908 #endif
2909 static char_u *option_expand __ARGS((int opt_idx, char_u *val));
2910 static void didset_options __ARGS((void));
2911 static void check_string_option __ARGS((char_u **pp));
2912 #if defined(FEAT_EVAL) || defined(PROTO)
2913 static long_u *insecure_flag __ARGS((int opt_idx, int opt_flags));
2914 #else
2915 # define insecure_flag(opt_idx, opt_flags) (&options[opt_idx].flags)
2916 #endif
2917 static void set_string_option_global __ARGS((int opt_idx, char_u **varp));
2918 static void set_string_option __ARGS((int opt_idx, char_u *value, int opt_flags));
2919 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));
2920 static char_u *set_chars_option __ARGS((char_u **varp));
2921 #ifdef FEAT_CLIPBOARD
2922 static char_u *check_clipboard_option __ARGS((void));
2923 #endif
2924 #ifdef FEAT_SPELL
2925 static char_u *compile_cap_prog __ARGS((buf_T *buf));
2926 #endif
2927 #ifdef FEAT_EVAL
2928 static void set_option_scriptID_idx __ARGS((int opt_idx, int opt_flags, int id));
2929 #endif
2930 static char_u *set_bool_option __ARGS((int opt_idx, char_u *varp, int value, int opt_flags));
2931 static char_u *set_num_option __ARGS((int opt_idx, char_u *varp, long value, char_u *errbuf, size_t errbuflen, int opt_flags));
2932 static void check_redraw __ARGS((long_u flags));
2933 static int findoption __ARGS((char_u *));
2934 static int find_key_option __ARGS((char_u *));
2935 static void showoptions __ARGS((int all, int opt_flags));
2936 static int optval_default __ARGS((struct vimoption *, char_u *varp));
2937 static void showoneopt __ARGS((struct vimoption *, int opt_flags));
2938 static int put_setstring __ARGS((FILE *fd, char *cmd, char *name, char_u **valuep, int expand));
2939 static int put_setnum __ARGS((FILE *fd, char *cmd, char *name, long *valuep));
2940 static int put_setbool __ARGS((FILE *fd, char *cmd, char *name, int value));
2941 static int  istermoption __ARGS((struct vimoption *));
2942 static char_u *get_varp_scope __ARGS((struct vimoption *p, int opt_flags));
2943 static char_u *get_varp __ARGS((struct vimoption *));
2944 static void option_value2string __ARGS((struct vimoption *, int opt_flags));
2945 static int wc_use_keyname __ARGS((char_u *varp, long *wcp));
2946 #ifdef FEAT_LANGMAP
2947 static void langmap_init __ARGS((void));
2948 static void langmap_set __ARGS((void));
2949 #endif
2950 static void paste_option_changed __ARGS((void));
2951 static void compatible_set __ARGS((void));
2952 #ifdef FEAT_LINEBREAK
2953 static void fill_breakat_flags __ARGS((void));
2954 #endif
2955 static int opt_strings_flags __ARGS((char_u *val, char **values, unsigned *flagp, int list));
2956 static int check_opt_strings __ARGS((char_u *val, char **values, int));
2957 static int check_opt_wim __ARGS((void));
2958 
2959 /*
2960  * Initialize the options, first part.
2961  *
2962  * Called only once from main(), just after creating the first buffer.
2963  */
2964     void
2965 set_init_1()
2966 {
2967     char_u	*p;
2968     int		opt_idx;
2969     long_u	n;
2970 
2971 #ifdef FEAT_LANGMAP
2972     langmap_init();
2973 #endif
2974 
2975     /* Be Vi compatible by default */
2976     p_cp = TRUE;
2977 
2978     /* Use POSIX compatibility when $VIM_POSIX is set. */
2979     if (mch_getenv((char_u *)"VIM_POSIX") != NULL)
2980     {
2981 	set_string_default("cpo", (char_u *)CPO_ALL);
2982 	set_string_default("shm", (char_u *)"A");
2983     }
2984 
2985     /*
2986      * Find default value for 'shell' option.
2987      * Don't use it if it is empty.
2988      */
2989     if (((p = mch_getenv((char_u *)"SHELL")) != NULL && *p != NUL)
2990 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
2991 # ifdef __EMX__
2992 	    || ((p = mch_getenv((char_u *)"EMXSHELL")) != NULL && *p != NUL)
2993 # endif
2994 	    || ((p = mch_getenv((char_u *)"COMSPEC")) != NULL && *p != NUL)
2995 # ifdef WIN3264
2996 	    || ((p = default_shell()) != NULL && *p != NUL)
2997 # endif
2998 #endif
2999 	    )
3000 	set_string_default("sh", p);
3001 
3002 #ifdef FEAT_WILDIGN
3003     /*
3004      * Set the default for 'backupskip' to include environment variables for
3005      * temp files.
3006      */
3007     {
3008 # ifdef UNIX
3009 	static char	*(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
3010 # else
3011 	static char	*(names[3]) = {"TMPDIR", "TEMP", "TMP"};
3012 # endif
3013 	int		len;
3014 	garray_T	ga;
3015 	int		mustfree;
3016 
3017 	ga_init2(&ga, 1, 100);
3018 	for (n = 0; n < (long)(sizeof(names) / sizeof(char *)); ++n)
3019 	{
3020 	    mustfree = FALSE;
3021 # ifdef UNIX
3022 	    if (*names[n] == NUL)
3023 		p = (char_u *)"/tmp";
3024 	    else
3025 # endif
3026 		p = vim_getenv((char_u *)names[n], &mustfree);
3027 	    if (p != NULL && *p != NUL)
3028 	    {
3029 		/* First time count the NUL, otherwise count the ','. */
3030 		len = (int)STRLEN(p) + 3;
3031 		if (ga_grow(&ga, len) == OK)
3032 		{
3033 		    if (ga.ga_len > 0)
3034 			STRCAT(ga.ga_data, ",");
3035 		    STRCAT(ga.ga_data, p);
3036 		    add_pathsep(ga.ga_data);
3037 		    STRCAT(ga.ga_data, "*");
3038 		    ga.ga_len += len;
3039 		}
3040 	    }
3041 	    if (mustfree)
3042 		vim_free(p);
3043 	}
3044 	if (ga.ga_data != NULL)
3045 	{
3046 	    set_string_default("bsk", ga.ga_data);
3047 	    vim_free(ga.ga_data);
3048 	}
3049     }
3050 #endif
3051 
3052     /*
3053      * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
3054      */
3055     opt_idx = findoption((char_u *)"maxmemtot");
3056     if (opt_idx >= 0)
3057     {
3058 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3059 	if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L)
3060 #endif
3061 	{
3062 #ifdef HAVE_AVAIL_MEM
3063 	    /* Use amount of memory available at this moment. */
3064 	    n = (mch_avail_mem(FALSE) >> 11);
3065 #else
3066 # ifdef HAVE_TOTAL_MEM
3067 	    /* Use amount of memory available to Vim. */
3068 	    n = (mch_total_mem(FALSE) >> 1);
3069 # else
3070 	    n = (0x7fffffff >> 11);
3071 # endif
3072 #endif
3073 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3074 	    opt_idx = findoption((char_u *)"maxmem");
3075 	    if (opt_idx >= 0)
3076 	    {
3077 #if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
3078 		if ((long)options[opt_idx].def_val[VI_DEFAULT] > n
3079 			|| (long)options[opt_idx].def_val[VI_DEFAULT] == 0L)
3080 #endif
3081 		    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
3082 	    }
3083 	}
3084     }
3085 
3086 #ifdef FEAT_GUI_W32
3087     /* force 'shortname' for Win32s */
3088     if (gui_is_win32s())
3089     {
3090 	opt_idx = findoption((char_u *)"shortname");
3091 	if (opt_idx >= 0)
3092 	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)TRUE;
3093     }
3094 #endif
3095 
3096 #ifdef FEAT_SEARCHPATH
3097     {
3098 	char_u	*cdpath;
3099 	char_u	*buf;
3100 	int	i;
3101 	int	j;
3102 	int	mustfree = FALSE;
3103 
3104 	/* Initialize the 'cdpath' option's default value. */
3105 	cdpath = vim_getenv((char_u *)"CDPATH", &mustfree);
3106 	if (cdpath != NULL)
3107 	{
3108 	    buf = alloc((unsigned)((STRLEN(cdpath) << 1) + 2));
3109 	    if (buf != NULL)
3110 	    {
3111 		buf[0] = ',';	    /* start with ",", current dir first */
3112 		j = 1;
3113 		for (i = 0; cdpath[i] != NUL; ++i)
3114 		{
3115 		    if (vim_ispathlistsep(cdpath[i]))
3116 			buf[j++] = ',';
3117 		    else
3118 		    {
3119 			if (cdpath[i] == ' ' || cdpath[i] == ',')
3120 			    buf[j++] = '\\';
3121 			buf[j++] = cdpath[i];
3122 		    }
3123 		}
3124 		buf[j] = NUL;
3125 		opt_idx = findoption((char_u *)"cdpath");
3126 		if (opt_idx >= 0)
3127 		{
3128 		    options[opt_idx].def_val[VI_DEFAULT] = buf;
3129 		    options[opt_idx].flags |= P_DEF_ALLOCED;
3130 		}
3131 	    }
3132 	    if (mustfree)
3133 		vim_free(cdpath);
3134 	}
3135     }
3136 #endif
3137 
3138 #if defined(FEAT_POSTSCRIPT) && (defined(MSWIN) || defined(OS2) || defined(VMS) || defined(EBCDIC) || defined(MAC) || defined(hpux))
3139     /* Set print encoding on platforms that don't default to latin1 */
3140     set_string_default("penc",
3141 # if defined(MSWIN) || defined(OS2)
3142 		       (char_u *)"cp1252"
3143 # else
3144 #  ifdef VMS
3145 		       (char_u *)"dec-mcs"
3146 #  else
3147 #   ifdef EBCDIC
3148 		       (char_u *)"ebcdic-uk"
3149 #   else
3150 #    ifdef MAC
3151 		       (char_u *)"mac-roman"
3152 #    else /* HPUX */
3153 		       (char_u *)"hp-roman8"
3154 #    endif
3155 #   endif
3156 #  endif
3157 # endif
3158 		       );
3159 #endif
3160 
3161 #ifdef FEAT_POSTSCRIPT
3162     /* 'printexpr' must be allocated to be able to evaluate it. */
3163     set_string_default("pexpr",
3164 # if defined(MSWIN) || defined(MSDOS) || defined(OS2)
3165 	    (char_u *)"system('copy' . ' ' . v:fname_in . (&printdevice == '' ? ' LPT1:' : (' \"' . &printdevice . '\"'))) . delete(v:fname_in)"
3166 # else
3167 #  ifdef VMS
3168 	    (char_u *)"system('print/delete' . (&printdevice == '' ? '' : ' /queue=' . &printdevice) . ' ' . v:fname_in)"
3169 
3170 #  else
3171 	    (char_u *)"system('lpr' . (&printdevice == '' ? '' : ' -P' . &printdevice) . ' ' . v:fname_in) . delete(v:fname_in) + v:shell_error"
3172 #  endif
3173 # endif
3174 	    );
3175 #endif
3176 
3177     /*
3178      * Set all the options (except the terminal options) to their default
3179      * value.  Also set the global value for local options.
3180      */
3181     set_options_default(0);
3182 
3183 #ifdef FEAT_GUI
3184     if (found_reverse_arg)
3185 	set_option_value((char_u *)"bg", 0L, (char_u *)"dark", 0);
3186 #endif
3187 
3188     curbuf->b_p_initialized = TRUE;
3189     curbuf->b_p_ar = -1;	/* no local 'autoread' value */
3190     check_buf_options(curbuf);
3191     check_win_options(curwin);
3192     check_options();
3193 
3194     /* Must be before option_expand(), because that one needs vim_isIDc() */
3195     didset_options();
3196 
3197 #ifdef FEAT_SPELL
3198     /* Use the current chartab for the generic chartab. */
3199     init_spell_chartab();
3200 #endif
3201 
3202 #ifdef FEAT_LINEBREAK
3203     /*
3204      * initialize the table for 'breakat'.
3205      */
3206     fill_breakat_flags();
3207 #endif
3208 
3209     /*
3210      * Expand environment variables and things like "~" for the defaults.
3211      * If option_expand() returns non-NULL the variable is expanded.  This can
3212      * only happen for non-indirect options.
3213      * Also set the default to the expanded value, so ":set" does not list
3214      * them.
3215      * Don't set the P_ALLOCED flag, because we don't want to free the
3216      * default.
3217      */
3218     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
3219     {
3220 	if ((options[opt_idx].flags & P_GETTEXT)
3221 					      && options[opt_idx].var != NULL)
3222 	    p = (char_u *)_(*(char **)options[opt_idx].var);
3223 	else
3224 	    p = option_expand(opt_idx, NULL);
3225 	if (p != NULL && (p = vim_strsave(p)) != NULL)
3226 	{
3227 	    *(char_u **)options[opt_idx].var = p;
3228 	    /* VIMEXP
3229 	     * Defaults for all expanded options are currently the same for Vi
3230 	     * and Vim.  When this changes, add some code here!  Also need to
3231 	     * split P_DEF_ALLOCED in two.
3232 	     */
3233 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3234 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3235 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3236 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3237 	}
3238     }
3239 
3240     /* Initialize the highlight_attr[] table. */
3241     highlight_changed();
3242 
3243     save_file_ff(curbuf);	/* Buffer is unchanged */
3244 
3245     /* Parse default for 'wildmode'  */
3246     check_opt_wim();
3247 
3248 #if defined(FEAT_ARABIC)
3249     /* Detect use of mlterm.
3250      * Mlterm is a terminal emulator akin to xterm that has some special
3251      * abilities (bidi namely).
3252      * NOTE: mlterm's author is being asked to 'set' a variable
3253      *       instead of an environment variable due to inheritance.
3254      */
3255     if (mch_getenv((char_u *)"MLTERM") != NULL)
3256 	set_option_value((char_u *)"tbidi", 1L, NULL, 0);
3257 #endif
3258 
3259 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
3260     /* Parse default for 'fillchars'. */
3261     (void)set_chars_option(&p_fcs);
3262 #endif
3263 
3264 #ifdef FEAT_CLIPBOARD
3265     /* Parse default for 'clipboard' */
3266     (void)check_clipboard_option();
3267 #endif
3268 
3269 #ifdef FEAT_MBYTE
3270 # if defined(WIN3264) && defined(FEAT_GETTEXT)
3271     /*
3272      * If $LANG isn't set, try to get a good value for it.  This makes the
3273      * right language be used automatically.  Don't do this for English.
3274      */
3275     if (mch_getenv((char_u *)"LANG") == NULL)
3276     {
3277 	char	buf[20];
3278 
3279 	/* Could use LOCALE_SISO639LANGNAME, but it's not in Win95.
3280 	 * LOCALE_SABBREVLANGNAME gives us three letters, like "enu", we use
3281 	 * only the first two. */
3282 	n = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SABBREVLANGNAME,
3283 							     (LPTSTR)buf, 20);
3284 	if (n >= 2 && STRNICMP(buf, "en", 2) != 0)
3285 	{
3286 	    /* There are a few exceptions (probably more) */
3287 	    if (STRNICMP(buf, "cht", 3) == 0 || STRNICMP(buf, "zht", 3) == 0)
3288 		STRCPY(buf, "zh_TW");
3289 	    else if (STRNICMP(buf, "chs", 3) == 0
3290 					      || STRNICMP(buf, "zhc", 3) == 0)
3291 		STRCPY(buf, "zh_CN");
3292 	    else if (STRNICMP(buf, "jp", 2) == 0)
3293 		STRCPY(buf, "ja");
3294 	    else
3295 		buf[2] = NUL;		/* truncate to two-letter code */
3296 	    vim_setenv("LANG", buf);
3297 	}
3298     }
3299 # else
3300 #  ifdef MACOS_CONVERT
3301     /* Moved to os_mac_conv.c to avoid dependency problems. */
3302     mac_lang_init();
3303 #  endif
3304 # endif
3305 
3306     /* enc_locale() will try to find the encoding of the current locale. */
3307     p = enc_locale();
3308     if (p != NULL)
3309     {
3310 	char_u *save_enc;
3311 
3312 	/* Try setting 'encoding' and check if the value is valid.
3313 	 * If not, go back to the default "latin1". */
3314 	save_enc = p_enc;
3315 	p_enc = p;
3316 	if (STRCMP(p_enc, "gb18030") == 0)
3317 	{
3318 	    /* We don't support "gb18030", but "cp936" is a good substitute
3319 	     * for practical purposes, thus use that.  It's not an alias to
3320 	     * still support conversion between gb18030 and utf-8. */
3321 	    p_enc = vim_strsave((char_u *)"cp936");
3322 	    vim_free(p);
3323 	}
3324 	if (mb_init() == NULL)
3325 	{
3326 	    opt_idx = findoption((char_u *)"encoding");
3327 	    if (opt_idx >= 0)
3328 	    {
3329 		options[opt_idx].def_val[VI_DEFAULT] = p_enc;
3330 		options[opt_idx].flags |= P_DEF_ALLOCED;
3331 	    }
3332 
3333 #if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(MACOS) \
3334 		|| defined(VMS)
3335 	    if (STRCMP(p_enc, "latin1") == 0
3336 # ifdef FEAT_MBYTE
3337 		    || enc_utf8
3338 # endif
3339 		    )
3340 	    {
3341 		/* Adjust the default for 'isprint' and 'iskeyword' to match
3342 		 * latin1.  Also set the defaults for when 'nocompatible' is
3343 		 * set. */
3344 		set_string_option_direct((char_u *)"isp", -1,
3345 					      ISP_LATIN1, OPT_FREE, SID_NONE);
3346 		set_string_option_direct((char_u *)"isk", -1,
3347 					      ISK_LATIN1, OPT_FREE, SID_NONE);
3348 		opt_idx = findoption((char_u *)"isp");
3349 		if (opt_idx >= 0)
3350 		    options[opt_idx].def_val[VIM_DEFAULT] = ISP_LATIN1;
3351 		opt_idx = findoption((char_u *)"isk");
3352 		if (opt_idx >= 0)
3353 		    options[opt_idx].def_val[VIM_DEFAULT] = ISK_LATIN1;
3354 		(void)init_chartab();
3355 	    }
3356 #endif
3357 
3358 # if defined(WIN3264) && !defined(FEAT_GUI)
3359 	    /* Win32 console: When GetACP() returns a different value from
3360 	     * GetConsoleCP() set 'termencoding'. */
3361 	    if (GetACP() != GetConsoleCP())
3362 	    {
3363 		char	buf[50];
3364 
3365 		sprintf(buf, "cp%ld", (long)GetConsoleCP());
3366 		p_tenc = vim_strsave((char_u *)buf);
3367 		if (p_tenc != NULL)
3368 		{
3369 		    opt_idx = findoption((char_u *)"termencoding");
3370 		    if (opt_idx >= 0)
3371 		    {
3372 			options[opt_idx].def_val[VI_DEFAULT] = p_tenc;
3373 			options[opt_idx].flags |= P_DEF_ALLOCED;
3374 		    }
3375 		    convert_setup(&input_conv, p_tenc, p_enc);
3376 		    convert_setup(&output_conv, p_enc, p_tenc);
3377 		}
3378 		else
3379 		    p_tenc = empty_option;
3380 	    }
3381 # endif
3382 # if defined(WIN3264) && defined(FEAT_MBYTE)
3383 	    /* $HOME may have characters in active code page. */
3384 	    init_homedir();
3385 # endif
3386 	}
3387 	else
3388 	{
3389 	    vim_free(p_enc);
3390 	    p_enc = save_enc;
3391 	}
3392     }
3393 #endif
3394 
3395 #ifdef FEAT_MULTI_LANG
3396     /* Set the default for 'helplang'. */
3397     set_helplang_default(get_mess_lang());
3398 #endif
3399 }
3400 
3401 /*
3402  * Set an option to its default value.
3403  * This does not take care of side effects!
3404  */
3405     static void
3406 set_option_default(opt_idx, opt_flags, compatible)
3407     int		opt_idx;
3408     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3409     int		compatible;	/* use Vi default value */
3410 {
3411     char_u	*varp;		/* pointer to variable for current option */
3412     int		dvi;		/* index in def_val[] */
3413     long_u	flags;
3414     long_u	*flagsp;
3415     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
3416 
3417     varp = get_varp_scope(&(options[opt_idx]), both ? OPT_LOCAL : opt_flags);
3418     flags = options[opt_idx].flags;
3419     if (varp != NULL)	    /* skip hidden option, nothing to do for it */
3420     {
3421 	dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
3422 	if (flags & P_STRING)
3423 	{
3424 	    /* Use set_string_option_direct() for local options to handle
3425 	     * freeing and allocating the value. */
3426 	    if (options[opt_idx].indir != PV_NONE)
3427 		set_string_option_direct(NULL, opt_idx,
3428 				 options[opt_idx].def_val[dvi], opt_flags, 0);
3429 	    else
3430 	    {
3431 		if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
3432 		    free_string_option(*(char_u **)(varp));
3433 		*(char_u **)varp = options[opt_idx].def_val[dvi];
3434 		options[opt_idx].flags &= ~P_ALLOCED;
3435 	    }
3436 	}
3437 	else if (flags & P_NUM)
3438 	{
3439 	    if (options[opt_idx].indir == PV_SCROLL)
3440 		win_comp_scroll(curwin);
3441 	    else
3442 	    {
3443 		*(long *)varp = (long)(long_i)options[opt_idx].def_val[dvi];
3444 		/* May also set global value for local option. */
3445 		if (both)
3446 		    *(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3447 								*(long *)varp;
3448 	    }
3449 	}
3450 	else	/* P_BOOL */
3451 	{
3452 	    /* the cast to long is required for Manx C, long_i is needed for
3453 	     * MSVC */
3454 	    *(int *)varp = (int)(long)(long_i)options[opt_idx].def_val[dvi];
3455 #ifdef UNIX
3456 	    /* 'modeline' defaults to off for root */
3457 	    if (options[opt_idx].indir == PV_ML && getuid() == ROOT_UID)
3458 		*(int *)varp = FALSE;
3459 #endif
3460 	    /* May also set global value for local option. */
3461 	    if (both)
3462 		*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
3463 								*(int *)varp;
3464 	}
3465 
3466 	/* The default value is not insecure. */
3467 	flagsp = insecure_flag(opt_idx, opt_flags);
3468 	*flagsp = *flagsp & ~P_INSECURE;
3469     }
3470 
3471 #ifdef FEAT_EVAL
3472     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
3473 #endif
3474 }
3475 
3476 /*
3477  * Set all options (except terminal options) to their default value.
3478  */
3479     static void
3480 set_options_default(opt_flags)
3481     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
3482 {
3483     int		i;
3484 #ifdef FEAT_WINDOWS
3485     win_T	*wp;
3486     tabpage_T	*tp;
3487 #endif
3488 
3489     for (i = 0; !istermoption(&options[i]); i++)
3490 	if (!(options[i].flags & P_NODEFAULT))
3491 	    set_option_default(i, opt_flags, p_cp);
3492 
3493 #ifdef FEAT_WINDOWS
3494     /* The 'scroll' option must be computed for all windows. */
3495     FOR_ALL_TAB_WINDOWS(tp, wp)
3496 	win_comp_scroll(wp);
3497 #else
3498 	win_comp_scroll(curwin);
3499 #endif
3500 }
3501 
3502 /*
3503  * Set the Vi-default value of a string option.
3504  * Used for 'sh', 'backupskip' and 'term'.
3505  */
3506     void
3507 set_string_default(name, val)
3508     char	*name;
3509     char_u	*val;
3510 {
3511     char_u	*p;
3512     int		opt_idx;
3513 
3514     p = vim_strsave(val);
3515     if (p != NULL)		/* we don't want a NULL */
3516     {
3517 	opt_idx = findoption((char_u *)name);
3518 	if (opt_idx >= 0)
3519 	{
3520 	    if (options[opt_idx].flags & P_DEF_ALLOCED)
3521 		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
3522 	    options[opt_idx].def_val[VI_DEFAULT] = p;
3523 	    options[opt_idx].flags |= P_DEF_ALLOCED;
3524 	}
3525     }
3526 }
3527 
3528 /*
3529  * Set the Vi-default value of a number option.
3530  * Used for 'lines' and 'columns'.
3531  */
3532     void
3533 set_number_default(name, val)
3534     char	*name;
3535     long	val;
3536 {
3537     int		opt_idx;
3538 
3539     opt_idx = findoption((char_u *)name);
3540     if (opt_idx >= 0)
3541 	options[opt_idx].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
3542 }
3543 
3544 #if defined(EXITFREE) || defined(PROTO)
3545 /*
3546  * Free all options.
3547  */
3548     void
3549 free_all_options()
3550 {
3551     int		i;
3552 
3553     for (i = 0; !istermoption(&options[i]); i++)
3554     {
3555 	if (options[i].indir == PV_NONE)
3556 	{
3557 	    /* global option: free value and default value. */
3558 	    if (options[i].flags & P_ALLOCED && options[i].var != NULL)
3559 		free_string_option(*(char_u **)options[i].var);
3560 	    if (options[i].flags & P_DEF_ALLOCED)
3561 		free_string_option(options[i].def_val[VI_DEFAULT]);
3562 	}
3563 	else if (options[i].var != VAR_WIN
3564 		&& (options[i].flags & P_STRING))
3565 	    /* buffer-local option: free global value */
3566 	    free_string_option(*(char_u **)options[i].var);
3567     }
3568 }
3569 #endif
3570 
3571 
3572 /*
3573  * Initialize the options, part two: After getting Rows and Columns and
3574  * setting 'term'.
3575  */
3576     void
3577 set_init_2()
3578 {
3579     int		idx;
3580 
3581     /*
3582      * 'scroll' defaults to half the window height. Note that this default is
3583      * wrong when the window height changes.
3584      */
3585     set_number_default("scroll", (long)((long_u)Rows >> 1));
3586     idx = findoption((char_u *)"scroll");
3587     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
3588 	set_option_default(idx, OPT_LOCAL, p_cp);
3589     comp_col();
3590 
3591     /*
3592      * 'window' is only for backwards compatibility with Vi.
3593      * Default is Rows - 1.
3594      */
3595     if (!option_was_set((char_u *)"window"))
3596 	p_window = Rows - 1;
3597     set_number_default("window", Rows - 1);
3598 
3599     /* For DOS console the default is always black. */
3600 #if !((defined(MSDOS) || defined(OS2) || defined(WIN3264)) && !defined(FEAT_GUI))
3601     /*
3602      * If 'background' wasn't set by the user, try guessing the value,
3603      * depending on the terminal name.  Only need to check for terminals
3604      * with a dark background, that can handle color.
3605      */
3606     idx = findoption((char_u *)"bg");
3607     if (idx >= 0 && !(options[idx].flags & P_WAS_SET)
3608 						 && *term_bg_default() == 'd')
3609     {
3610 	set_string_option_direct(NULL, idx, (char_u *)"dark", OPT_FREE, 0);
3611 	/* don't mark it as set, when starting the GUI it may be
3612 	 * changed again */
3613 	options[idx].flags &= ~P_WAS_SET;
3614     }
3615 #endif
3616 
3617 #ifdef CURSOR_SHAPE
3618     parse_shape_opt(SHAPE_CURSOR); /* set cursor shapes from 'guicursor' */
3619 #endif
3620 #ifdef FEAT_MOUSESHAPE
3621     parse_shape_opt(SHAPE_MOUSE);  /* set mouse shapes from 'mouseshape' */
3622 #endif
3623 #ifdef FEAT_PRINTER
3624     (void)parse_printoptions();	    /* parse 'printoptions' default value */
3625 #endif
3626 }
3627 
3628 /*
3629  * Return "dark" or "light" depending on the kind of terminal.
3630  * This is just guessing!  Recognized are:
3631  * "linux"	    Linux console
3632  * "screen.linux"   Linux console with screen
3633  * "cygwin"	    Cygwin shell
3634  * "putty"	    Putty program
3635  * We also check the COLORFGBG environment variable, which is set by
3636  * rxvt and derivatives. This variable contains either two or three
3637  * values separated by semicolons; we want the last value in either
3638  * case. If this value is 0-6 or 8, our background is dark.
3639  */
3640     static char_u *
3641 term_bg_default()
3642 {
3643 #if defined(MSDOS) || defined(OS2) || defined(WIN3264)
3644     /* DOS console nearly always black */
3645     return (char_u *)"dark";
3646 #else
3647     char_u	*p;
3648 
3649     if (STRCMP(T_NAME, "linux") == 0
3650 	    || STRCMP(T_NAME, "screen.linux") == 0
3651 	    || STRCMP(T_NAME, "cygwin") == 0
3652 	    || STRCMP(T_NAME, "putty") == 0
3653 	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
3654 		&& (p = vim_strrchr(p, ';')) != NULL
3655 		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
3656 		&& p[2] == NUL))
3657 	return (char_u *)"dark";
3658     return (char_u *)"light";
3659 #endif
3660 }
3661 
3662 /*
3663  * Initialize the options, part three: After reading the .vimrc
3664  */
3665     void
3666 set_init_3()
3667 {
3668 #if defined(UNIX) || defined(OS2) || defined(WIN3264)
3669 /*
3670  * Set 'shellpipe' and 'shellredir', depending on the 'shell' option.
3671  * This is done after other initializations, where 'shell' might have been
3672  * set, but only if they have not been set before.
3673  */
3674     char_u  *p;
3675     int	    idx_srr;
3676     int	    do_srr;
3677 #ifdef FEAT_QUICKFIX
3678     int	    idx_sp;
3679     int	    do_sp;
3680 #endif
3681 
3682     idx_srr = findoption((char_u *)"srr");
3683     if (idx_srr < 0)
3684 	do_srr = FALSE;
3685     else
3686 	do_srr = !(options[idx_srr].flags & P_WAS_SET);
3687 #ifdef FEAT_QUICKFIX
3688     idx_sp = findoption((char_u *)"sp");
3689     if (idx_sp < 0)
3690 	do_sp = FALSE;
3691     else
3692 	do_sp = !(options[idx_sp].flags & P_WAS_SET);
3693 #endif
3694 
3695     /*
3696      * Isolate the name of the shell:
3697      * - Skip beyond any path.  E.g., "/usr/bin/csh -f" -> "csh -f".
3698      * - Remove any argument.  E.g., "csh -f" -> "csh".
3699      * But don't allow a space in the path, so that this works:
3700      *   "/usr/bin/csh --rcfile ~/.cshrc"
3701      * But don't do that for Windows, it's common to have a space in the path.
3702      */
3703 #ifdef WIN3264
3704     p = gettail(p_sh);
3705     p = vim_strnsave(p, (int)(skiptowhite(p) - p));
3706 #else
3707     p = skiptowhite(p_sh);
3708     if (*p == NUL)
3709     {
3710 	/* No white space, use the tail. */
3711 	p = vim_strsave(gettail(p_sh));
3712     }
3713     else
3714     {
3715 	char_u  *p1, *p2;
3716 
3717 	/* Find the last path separator before the space. */
3718 	p1 = p_sh;
3719 	for (p2 = p_sh; p2 < p; mb_ptr_adv(p2))
3720 	    if (vim_ispathsep(*p2))
3721 		p1 = p2 + 1;
3722 	p = vim_strnsave(p1, (int)(p - p1));
3723     }
3724 #endif
3725     if (p != NULL)
3726     {
3727 	/*
3728 	 * Default for p_sp is "| tee", for p_srr is ">".
3729 	 * For known shells it is changed here to include stderr.
3730 	 */
3731 	if (	   fnamecmp(p, "csh") == 0
3732 		|| fnamecmp(p, "tcsh") == 0
3733 # if defined(OS2) || defined(WIN3264)	/* also check with .exe extension */
3734 		|| fnamecmp(p, "csh.exe") == 0
3735 		|| fnamecmp(p, "tcsh.exe") == 0
3736 # endif
3737 	   )
3738 	{
3739 #if defined(FEAT_QUICKFIX)
3740 	    if (do_sp)
3741 	    {
3742 # ifdef WIN3264
3743 		p_sp = (char_u *)">&";
3744 # else
3745 		p_sp = (char_u *)"|& tee";
3746 # endif
3747 		options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3748 	    }
3749 #endif
3750 	    if (do_srr)
3751 	    {
3752 		p_srr = (char_u *)">&";
3753 		options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3754 	    }
3755 	}
3756 	else
3757 # ifndef OS2	/* Always use bourne shell style redirection if we reach this */
3758 	    if (       fnamecmp(p, "sh") == 0
3759 		    || fnamecmp(p, "ksh") == 0
3760 		    || fnamecmp(p, "zsh") == 0
3761 		    || fnamecmp(p, "zsh-beta") == 0
3762 		    || fnamecmp(p, "bash") == 0
3763 #  ifdef WIN3264
3764 		    || fnamecmp(p, "cmd") == 0
3765 		    || fnamecmp(p, "sh.exe") == 0
3766 		    || fnamecmp(p, "ksh.exe") == 0
3767 		    || fnamecmp(p, "zsh.exe") == 0
3768 		    || fnamecmp(p, "zsh-beta.exe") == 0
3769 		    || fnamecmp(p, "bash.exe") == 0
3770 		    || fnamecmp(p, "cmd.exe") == 0
3771 #  endif
3772 		    )
3773 # endif
3774 	    {
3775 #if defined(FEAT_QUICKFIX)
3776 		if (do_sp)
3777 		{
3778 # ifdef WIN3264
3779 		    p_sp = (char_u *)">%s 2>&1";
3780 # else
3781 		    p_sp = (char_u *)"2>&1| tee";
3782 # endif
3783 		    options[idx_sp].def_val[VI_DEFAULT] = p_sp;
3784 		}
3785 #endif
3786 		if (do_srr)
3787 		{
3788 		    p_srr = (char_u *)">%s 2>&1";
3789 		    options[idx_srr].def_val[VI_DEFAULT] = p_srr;
3790 		}
3791 	    }
3792 	vim_free(p);
3793     }
3794 #endif
3795 
3796 #if defined(MSDOS) || defined(WIN3264) || defined(OS2)
3797     /*
3798      * Set 'shellcmdflag and 'shellquote' depending on the 'shell' option.
3799      * This is done after other initializations, where 'shell' might have been
3800      * set, but only if they have not been set before.  Default for p_shcf is
3801      * "/c", for p_shq is "".  For "sh" like  shells it is changed here to
3802      * "-c" and "\"", but not for DJGPP, because it starts the shell without
3803      * command.com.  And for Win32 we need to set p_sxq instead.
3804      */
3805     if (strstr((char *)gettail(p_sh), "sh") != NULL)
3806     {
3807 	int	idx3;
3808 
3809 	idx3 = findoption((char_u *)"shcf");
3810 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3811 	{
3812 	    p_shcf = (char_u *)"-c";
3813 	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
3814 	}
3815 
3816 # ifndef DJGPP
3817 #  ifdef WIN3264
3818 	/* Somehow Win32 requires the quotes around the redirection too */
3819 	idx3 = findoption((char_u *)"sxq");
3820 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3821 	{
3822 	    p_sxq = (char_u *)"\"";
3823 	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
3824 	}
3825 #  else
3826 	idx3 = findoption((char_u *)"shq");
3827 	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
3828 	{
3829 	    p_shq = (char_u *)"\"";
3830 	    options[idx3].def_val[VI_DEFAULT] = p_shq;
3831 	}
3832 #  endif
3833 # endif
3834     }
3835 #endif
3836 
3837 #ifdef FEAT_TITLE
3838     set_title_defaults();
3839 #endif
3840 }
3841 
3842 #if defined(FEAT_MULTI_LANG) || defined(PROTO)
3843 /*
3844  * When 'helplang' is still at its default value, set it to "lang".
3845  * Only the first two characters of "lang" are used.
3846  */
3847     void
3848 set_helplang_default(lang)
3849     char_u	*lang;
3850 {
3851     int		idx;
3852 
3853     if (lang == NULL || STRLEN(lang) < 2)	/* safety check */
3854 	return;
3855     idx = findoption((char_u *)"hlg");
3856     if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
3857     {
3858 	if (options[idx].flags & P_ALLOCED)
3859 	    free_string_option(p_hlg);
3860 	p_hlg = vim_strsave(lang);
3861 	if (p_hlg == NULL)
3862 	    p_hlg = empty_option;
3863 	else
3864 	{
3865 	    /* zh_CN becomes "cn", zh_TW becomes "tw". */
3866 	    if (STRNICMP(p_hlg, "zh_", 3) == 0 && STRLEN(p_hlg) >= 5)
3867 	    {
3868 		p_hlg[0] = TOLOWER_ASC(p_hlg[3]);
3869 		p_hlg[1] = TOLOWER_ASC(p_hlg[4]);
3870 	    }
3871 	    p_hlg[2] = NUL;
3872 	}
3873 	options[idx].flags |= P_ALLOCED;
3874     }
3875 }
3876 #endif
3877 
3878 #ifdef FEAT_GUI
3879 static char_u *gui_bg_default __ARGS((void));
3880 
3881     static char_u *
3882 gui_bg_default()
3883 {
3884     if (gui_get_lightness(gui.back_pixel) < 127)
3885 	return (char_u *)"dark";
3886     return (char_u *)"light";
3887 }
3888 
3889 /*
3890  * Option initializations that can only be done after opening the GUI window.
3891  */
3892     void
3893 init_gui_options()
3894 {
3895     /* Set the 'background' option according to the lightness of the
3896      * background color, unless the user has set it already. */
3897     if (!option_was_set((char_u *)"bg") && STRCMP(p_bg, gui_bg_default()) != 0)
3898     {
3899 	set_option_value((char_u *)"bg", 0L, gui_bg_default(), 0);
3900 	highlight_changed();
3901     }
3902 }
3903 #endif
3904 
3905 #ifdef FEAT_TITLE
3906 /*
3907  * 'title' and 'icon' only default to true if they have not been set or reset
3908  * in .vimrc and we can read the old value.
3909  * When 'title' and 'icon' have been reset in .vimrc, we won't even check if
3910  * they can be reset.  This reduces startup time when using X on a remote
3911  * machine.
3912  */
3913     void
3914 set_title_defaults()
3915 {
3916     int	    idx1;
3917     long    val;
3918 
3919     /*
3920      * If GUI is (going to be) used, we can always set the window title and
3921      * icon name.  Saves a bit of time, because the X11 display server does
3922      * not need to be contacted.
3923      */
3924     idx1 = findoption((char_u *)"title");
3925     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
3926     {
3927 #ifdef FEAT_GUI
3928 	if (gui.starting || gui.in_use)
3929 	    val = TRUE;
3930 	else
3931 #endif
3932 	    val = mch_can_restore_title();
3933 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
3934 	p_title = val;
3935     }
3936     idx1 = findoption((char_u *)"icon");
3937     if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET))
3938     {
3939 #ifdef FEAT_GUI
3940 	if (gui.starting || gui.in_use)
3941 	    val = TRUE;
3942 	else
3943 #endif
3944 	    val = mch_can_restore_icon();
3945 	options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val;
3946 	p_icon = val;
3947     }
3948 }
3949 #endif
3950 
3951 /*
3952  * Parse 'arg' for option settings.
3953  *
3954  * 'arg' may be IObuff, but only when no errors can be present and option
3955  * does not need to be expanded with option_expand().
3956  * "opt_flags":
3957  * 0 for ":set"
3958  * OPT_GLOBAL   for ":setglobal"
3959  * OPT_LOCAL    for ":setlocal" and a modeline
3960  * OPT_MODELINE for a modeline
3961  * OPT_WINONLY  to only set window-local options
3962  * OPT_NOWIN	to skip setting window-local options
3963  *
3964  * returns FAIL if an error is detected, OK otherwise
3965  */
3966     int
3967 do_set(arg, opt_flags)
3968     char_u	*arg;		/* option string (may be written to!) */
3969     int		opt_flags;
3970 {
3971     int		opt_idx;
3972     char_u	*errmsg;
3973     char_u	errbuf[80];
3974     char_u	*startarg;
3975     int		prefix;	/* 1: nothing, 0: "no", 2: "inv" in front of name */
3976     int		nextchar;	    /* next non-white char after option name */
3977     int		afterchar;	    /* character just after option name */
3978     int		len;
3979     int		i;
3980     long	value;
3981     int		key;
3982     long_u	flags;		    /* flags for current option */
3983     char_u	*varp = NULL;	    /* pointer to variable for current option */
3984     int		did_show = FALSE;   /* already showed one value */
3985     int		adding;		    /* "opt+=arg" */
3986     int		prepending;	    /* "opt^=arg" */
3987     int		removing;	    /* "opt-=arg" */
3988     int		cp_val = 0;
3989     char_u	key_name[2];
3990 
3991     if (*arg == NUL)
3992     {
3993 	showoptions(0, opt_flags);
3994 	did_show = TRUE;
3995 	goto theend;
3996     }
3997 
3998     while (*arg != NUL)		/* loop to process all options */
3999     {
4000 	errmsg = NULL;
4001 	startarg = arg;		/* remember for error message */
4002 
4003 	if (STRNCMP(arg, "all", 3) == 0 && !isalpha(arg[3])
4004 						&& !(opt_flags & OPT_MODELINE))
4005 	{
4006 	    /*
4007 	     * ":set all"  show all options.
4008 	     * ":set all&" set all options to their default value.
4009 	     */
4010 	    arg += 3;
4011 	    if (*arg == '&')
4012 	    {
4013 		++arg;
4014 		/* Only for :set command set global value of local options. */
4015 		set_options_default(OPT_FREE | opt_flags);
4016 	    }
4017 	    else
4018 	    {
4019 		showoptions(1, opt_flags);
4020 		did_show = TRUE;
4021 	    }
4022 	}
4023 	else if (STRNCMP(arg, "termcap", 7) == 0 && !(opt_flags & OPT_MODELINE))
4024 	{
4025 	    showoptions(2, opt_flags);
4026 	    show_termcodes();
4027 	    did_show = TRUE;
4028 	    arg += 7;
4029 	}
4030 	else
4031 	{
4032 	    prefix = 1;
4033 	    if (STRNCMP(arg, "no", 2) == 0 && STRNCMP(arg, "novice", 6) != 0)
4034 	    {
4035 		prefix = 0;
4036 		arg += 2;
4037 	    }
4038 	    else if (STRNCMP(arg, "inv", 3) == 0)
4039 	    {
4040 		prefix = 2;
4041 		arg += 3;
4042 	    }
4043 
4044 	    /* find end of name */
4045 	    key = 0;
4046 	    if (*arg == '<')
4047 	    {
4048 		nextchar = 0;
4049 		opt_idx = -1;
4050 		/* look out for <t_>;> */
4051 		if (arg[1] == 't' && arg[2] == '_' && arg[3] && arg[4])
4052 		    len = 5;
4053 		else
4054 		{
4055 		    len = 1;
4056 		    while (arg[len] != NUL && arg[len] != '>')
4057 			++len;
4058 		}
4059 		if (arg[len] != '>')
4060 		{
4061 		    errmsg = e_invarg;
4062 		    goto skip;
4063 		}
4064 		arg[len] = NUL;			    /* put NUL after name */
4065 		if (arg[1] == 't' && arg[2] == '_') /* could be term code */
4066 		    opt_idx = findoption(arg + 1);
4067 		arg[len++] = '>';		    /* restore '>' */
4068 		if (opt_idx == -1)
4069 		    key = find_key_option(arg + 1);
4070 	    }
4071 	    else
4072 	    {
4073 		len = 0;
4074 		/*
4075 		 * The two characters after "t_" may not be alphanumeric.
4076 		 */
4077 		if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
4078 		    len = 4;
4079 		else
4080 		    while (ASCII_ISALNUM(arg[len]) || arg[len] == '_')
4081 			++len;
4082 		nextchar = arg[len];
4083 		arg[len] = NUL;			    /* put NUL after name */
4084 		opt_idx = findoption(arg);
4085 		arg[len] = nextchar;		    /* restore nextchar */
4086 		if (opt_idx == -1)
4087 		    key = find_key_option(arg);
4088 	    }
4089 
4090 	    /* remember character after option name */
4091 	    afterchar = arg[len];
4092 
4093 	    /* skip white space, allow ":set ai  ?" */
4094 	    while (vim_iswhite(arg[len]))
4095 		++len;
4096 
4097 	    adding = FALSE;
4098 	    prepending = FALSE;
4099 	    removing = FALSE;
4100 	    if (arg[len] != NUL && arg[len + 1] == '=')
4101 	    {
4102 		if (arg[len] == '+')
4103 		{
4104 		    adding = TRUE;		/* "+=" */
4105 		    ++len;
4106 		}
4107 		else if (arg[len] == '^')
4108 		{
4109 		    prepending = TRUE;		/* "^=" */
4110 		    ++len;
4111 		}
4112 		else if (arg[len] == '-')
4113 		{
4114 		    removing = TRUE;		/* "-=" */
4115 		    ++len;
4116 		}
4117 	    }
4118 	    nextchar = arg[len];
4119 
4120 	    if (opt_idx == -1 && key == 0)	/* found a mismatch: skip */
4121 	    {
4122 		errmsg = (char_u *)N_("E518: Unknown option");
4123 		goto skip;
4124 	    }
4125 
4126 	    if (opt_idx >= 0)
4127 	    {
4128 		if (options[opt_idx].var == NULL)   /* hidden option: skip */
4129 		{
4130 		    /* Only give an error message when requesting the value of
4131 		     * a hidden option, ignore setting it. */
4132 		    if (vim_strchr((char_u *)"=:!&<", nextchar) == NULL
4133 			    && (!(options[opt_idx].flags & P_BOOL)
4134 				|| nextchar == '?'))
4135 			errmsg = (char_u *)N_("E519: Option not supported");
4136 		    goto skip;
4137 		}
4138 
4139 		flags = options[opt_idx].flags;
4140 		varp = get_varp_scope(&(options[opt_idx]), opt_flags);
4141 	    }
4142 	    else
4143 	    {
4144 		flags = P_STRING;
4145 		if (key < 0)
4146 		{
4147 		    key_name[0] = KEY2TERMCAP0(key);
4148 		    key_name[1] = KEY2TERMCAP1(key);
4149 		}
4150 		else
4151 		{
4152 		    key_name[0] = KS_KEY;
4153 		    key_name[1] = (key & 0xff);
4154 		}
4155 	    }
4156 
4157 	    /* Skip all options that are not window-local (used when showing
4158 	     * an already loaded buffer in a window). */
4159 	    if ((opt_flags & OPT_WINONLY)
4160 			  && (opt_idx < 0 || options[opt_idx].var != VAR_WIN))
4161 		goto skip;
4162 
4163 	    /* Skip all options that are window-local (used for :vimgrep). */
4164 	    if ((opt_flags & OPT_NOWIN) && opt_idx >= 0
4165 					   && options[opt_idx].var == VAR_WIN)
4166 		goto skip;
4167 
4168 	    /* Disallow changing some options from modelines. */
4169 	    if (opt_flags & OPT_MODELINE)
4170 	    {
4171 		if (flags & P_SECURE)
4172 		{
4173 		    errmsg = (char_u *)_("E520: Not allowed in a modeline");
4174 		    goto skip;
4175 		}
4176 #ifdef FEAT_DIFF
4177 		/* In diff mode some options are overruled.  This avoids that
4178 		 * 'foldmethod' becomes "marker" instead of "diff" and that
4179 		 * "wrap" gets set. */
4180 		if (curwin->w_p_diff
4181 			&& (options[opt_idx].indir == PV_FDM
4182 			    || options[opt_idx].indir == PV_WRAP))
4183 		    goto skip;
4184 #endif
4185 	    }
4186 
4187 #ifdef HAVE_SANDBOX
4188 	    /* Disallow changing some options in the sandbox */
4189 	    if (sandbox != 0 && (flags & P_SECURE))
4190 	    {
4191 		errmsg = (char_u *)_(e_sandbox);
4192 		goto skip;
4193 	    }
4194 #endif
4195 
4196 	    if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL)
4197 	    {
4198 		arg += len;
4199 		cp_val = p_cp;
4200 		if (nextchar == '&' && arg[1] == 'v' && arg[2] == 'i')
4201 		{
4202 		    if (arg[3] == 'm')	/* "opt&vim": set to Vim default */
4203 		    {
4204 			cp_val = FALSE;
4205 			arg += 3;
4206 		    }
4207 		    else		/* "opt&vi": set to Vi default */
4208 		    {
4209 			cp_val = TRUE;
4210 			arg += 2;
4211 		    }
4212 		}
4213 		if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
4214 			&& arg[1] != NUL && !vim_iswhite(arg[1]))
4215 		{
4216 		    errmsg = e_trailing;
4217 		    goto skip;
4218 		}
4219 	    }
4220 
4221 	    /*
4222 	     * allow '=' and ':' as MSDOS command.com allows only one
4223 	     * '=' character per "set" command line. grrr. (jw)
4224 	     */
4225 	    if (nextchar == '?'
4226 		    || (prefix == 1
4227 			&& vim_strchr((char_u *)"=:&<", nextchar) == NULL
4228 			&& !(flags & P_BOOL)))
4229 	    {
4230 		/*
4231 		 * print value
4232 		 */
4233 		if (did_show)
4234 		    msg_putchar('\n');	    /* cursor below last one */
4235 		else
4236 		{
4237 		    gotocmdline(TRUE);	    /* cursor at status line */
4238 		    did_show = TRUE;	    /* remember that we did a line */
4239 		}
4240 		if (opt_idx >= 0)
4241 		{
4242 		    showoneopt(&options[opt_idx], opt_flags);
4243 #ifdef FEAT_EVAL
4244 		    if (p_verbose > 0)
4245 		    {
4246 			/* Mention where the option was last set. */
4247 			if (varp == options[opt_idx].var)
4248 			    last_set_msg(options[opt_idx].scriptID);
4249 			else if ((int)options[opt_idx].indir & PV_WIN)
4250 			    last_set_msg(curwin->w_p_scriptID[
4251 				      (int)options[opt_idx].indir & PV_MASK]);
4252 			else if ((int)options[opt_idx].indir & PV_BUF)
4253 			    last_set_msg(curbuf->b_p_scriptID[
4254 				      (int)options[opt_idx].indir & PV_MASK]);
4255 		    }
4256 #endif
4257 		}
4258 		else
4259 		{
4260 		    char_u	    *p;
4261 
4262 		    p = find_termcode(key_name);
4263 		    if (p == NULL)
4264 		    {
4265 			errmsg = (char_u *)N_("E518: Unknown option");
4266 			goto skip;
4267 		    }
4268 		    else
4269 			(void)show_one_termcode(key_name, p, TRUE);
4270 		}
4271 		if (nextchar != '?'
4272 			&& nextchar != NUL && !vim_iswhite(afterchar))
4273 		    errmsg = e_trailing;
4274 	    }
4275 	    else
4276 	    {
4277 		if (flags & P_BOOL)		    /* boolean */
4278 		{
4279 		    if (nextchar == '=' || nextchar == ':')
4280 		    {
4281 			errmsg = e_invarg;
4282 			goto skip;
4283 		    }
4284 
4285 		    /*
4286 		     * ":set opt!": invert
4287 		     * ":set opt&": reset to default value
4288 		     * ":set opt<": reset to global value
4289 		     */
4290 		    if (nextchar == '!')
4291 			value = *(int *)(varp) ^ 1;
4292 		    else if (nextchar == '&')
4293 			value = (int)(long)(long_i)options[opt_idx].def_val[
4294 						((flags & P_VI_DEF) || cp_val)
4295 						 ?  VI_DEFAULT : VIM_DEFAULT];
4296 		    else if (nextchar == '<')
4297 		    {
4298 			/* For 'autoread' -1 means to use global value. */
4299 			if ((int *)varp == &curbuf->b_p_ar
4300 						    && opt_flags == OPT_LOCAL)
4301 			    value = -1;
4302 			else
4303 			    value = *(int *)get_varp_scope(&(options[opt_idx]),
4304 								  OPT_GLOBAL);
4305 		    }
4306 		    else
4307 		    {
4308 			/*
4309 			 * ":set invopt": invert
4310 			 * ":set opt" or ":set noopt": set or reset
4311 			 */
4312 			if (nextchar != NUL && !vim_iswhite(afterchar))
4313 			{
4314 			    errmsg = e_trailing;
4315 			    goto skip;
4316 			}
4317 			if (prefix == 2)	/* inv */
4318 			    value = *(int *)(varp) ^ 1;
4319 			else
4320 			    value = prefix;
4321 		    }
4322 
4323 		    errmsg = set_bool_option(opt_idx, varp, (int)value,
4324 								   opt_flags);
4325 		}
4326 		else				    /* numeric or string */
4327 		{
4328 		    if (vim_strchr((char_u *)"=:&<", nextchar) == NULL
4329 							       || prefix != 1)
4330 		    {
4331 			errmsg = e_invarg;
4332 			goto skip;
4333 		    }
4334 
4335 		    if (flags & P_NUM)		    /* numeric */
4336 		    {
4337 			/*
4338 			 * Different ways to set a number option:
4339 			 * &	    set to default value
4340 			 * <	    set to global value
4341 			 * <xx>	    accept special key codes for 'wildchar'
4342 			 * c	    accept any non-digit for 'wildchar'
4343 			 * [-]0-9   set number
4344 			 * other    error
4345 			 */
4346 			++arg;
4347 			if (nextchar == '&')
4348 			    value = (long)(long_i)options[opt_idx].def_val[
4349 						((flags & P_VI_DEF) || cp_val)
4350 						 ?  VI_DEFAULT : VIM_DEFAULT];
4351 			else if (nextchar == '<')
4352 			    value = *(long *)get_varp_scope(&(options[opt_idx]),
4353 								  OPT_GLOBAL);
4354 			else if (((long *)varp == &p_wc
4355 				    || (long *)varp == &p_wcm)
4356 				&& (*arg == '<'
4357 				    || *arg == '^'
4358 				    || ((!arg[1] || vim_iswhite(arg[1]))
4359 					&& !VIM_ISDIGIT(*arg))))
4360 			{
4361 			    value = string_to_key(arg);
4362 			    if (value == 0 && (long *)varp != &p_wcm)
4363 			    {
4364 				errmsg = e_invarg;
4365 				goto skip;
4366 			    }
4367 			}
4368 				/* allow negative numbers (for 'undolevels') */
4369 			else if (*arg == '-' || VIM_ISDIGIT(*arg))
4370 			{
4371 			    i = 0;
4372 			    if (*arg == '-')
4373 				i = 1;
4374 #ifdef HAVE_STRTOL
4375 			    value = strtol((char *)arg, NULL, 0);
4376 			    if (arg[i] == '0' && TOLOWER_ASC(arg[i + 1]) == 'x')
4377 				i += 2;
4378 #else
4379 			    value = atol((char *)arg);
4380 #endif
4381 			    while (VIM_ISDIGIT(arg[i]))
4382 				++i;
4383 			    if (arg[i] != NUL && !vim_iswhite(arg[i]))
4384 			    {
4385 				errmsg = e_invarg;
4386 				goto skip;
4387 			    }
4388 			}
4389 			else
4390 			{
4391 			    errmsg = (char_u *)N_("E521: Number required after =");
4392 			    goto skip;
4393 			}
4394 
4395 			if (adding)
4396 			    value = *(long *)varp + value;
4397 			if (prepending)
4398 			    value = *(long *)varp * value;
4399 			if (removing)
4400 			    value = *(long *)varp - value;
4401 			errmsg = set_num_option(opt_idx, varp, value,
4402 					   errbuf, sizeof(errbuf), opt_flags);
4403 		    }
4404 		    else if (opt_idx >= 0)		    /* string */
4405 		    {
4406 			char_u	    *save_arg = NULL;
4407 			char_u	    *s = NULL;
4408 			char_u	    *oldval;	/* previous value if *varp */
4409 			char_u	    *newval;
4410 			char_u	    *origval;
4411 			unsigned    newlen;
4412 			int	    comma;
4413 			int	    bs;
4414 			int	    new_value_alloced;	/* new string option
4415 							   was allocated */
4416 
4417 			/* When using ":set opt=val" for a global option
4418 			 * with a local value the local value will be
4419 			 * reset, use the global value here. */
4420 			if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
4421 				&& ((int)options[opt_idx].indir & PV_BOTH))
4422 			    varp = options[opt_idx].var;
4423 
4424 			/* The old value is kept until we are sure that the
4425 			 * new value is valid. */
4426 			oldval = *(char_u **)varp;
4427 			if (nextchar == '&')	/* set to default val */
4428 			{
4429 			    newval = options[opt_idx].def_val[
4430 						((flags & P_VI_DEF) || cp_val)
4431 						 ?  VI_DEFAULT : VIM_DEFAULT];
4432 			    if ((char_u **)varp == &p_bg)
4433 			    {
4434 				/* guess the value of 'background' */
4435 #ifdef FEAT_GUI
4436 				if (gui.in_use)
4437 				    newval = gui_bg_default();
4438 				else
4439 #endif
4440 				    newval = term_bg_default();
4441 			    }
4442 
4443 			    /* expand environment variables and ~ (since the
4444 			     * default value was already expanded, only
4445 			     * required when an environment variable was set
4446 			     * later */
4447 			    if (newval == NULL)
4448 				newval = empty_option;
4449 			    else
4450 			    {
4451 				s = option_expand(opt_idx, newval);
4452 				if (s == NULL)
4453 				    s = newval;
4454 				newval = vim_strsave(s);
4455 			    }
4456 			    new_value_alloced = TRUE;
4457 			}
4458 			else if (nextchar == '<')	/* set to global val */
4459 			{
4460 			    newval = vim_strsave(*(char_u **)get_varp_scope(
4461 					     &(options[opt_idx]), OPT_GLOBAL));
4462 			    new_value_alloced = TRUE;
4463 			}
4464 			else
4465 			{
4466 			    ++arg;	/* jump to after the '=' or ':' */
4467 
4468 			    /*
4469 			     * Set 'keywordprg' to ":help" if an empty
4470 			     * value was passed to :set by the user.
4471 			     * Misuse errbuf[] for the resulting string.
4472 			     */
4473 			    if (varp == (char_u *)&p_kp
4474 					      && (*arg == NUL || *arg == ' '))
4475 			    {
4476 				STRCPY(errbuf, ":help");
4477 				save_arg = arg;
4478 				arg = errbuf;
4479 			    }
4480 			    /*
4481 			     * Convert 'whichwrap' number to string, for
4482 			     * backwards compatibility with Vim 3.0.
4483 			     * Misuse errbuf[] for the resulting string.
4484 			     */
4485 			    else if (varp == (char_u *)&p_ww
4486 							 && VIM_ISDIGIT(*arg))
4487 			    {
4488 				*errbuf = NUL;
4489 				i = getdigits(&arg);
4490 				if (i & 1)
4491 				    STRCAT(errbuf, "b,");
4492 				if (i & 2)
4493 				    STRCAT(errbuf, "s,");
4494 				if (i & 4)
4495 				    STRCAT(errbuf, "h,l,");
4496 				if (i & 8)
4497 				    STRCAT(errbuf, "<,>,");
4498 				if (i & 16)
4499 				    STRCAT(errbuf, "[,],");
4500 				if (*errbuf != NUL)	/* remove trailing , */
4501 				    errbuf[STRLEN(errbuf) - 1] = NUL;
4502 				save_arg = arg;
4503 				arg = errbuf;
4504 			    }
4505 			    /*
4506 			     * Remove '>' before 'dir' and 'bdir', for
4507 			     * backwards compatibility with version 3.0
4508 			     */
4509 			    else if (  *arg == '>'
4510 				    && (varp == (char_u *)&p_dir
4511 					    || varp == (char_u *)&p_bdir))
4512 			    {
4513 				++arg;
4514 			    }
4515 
4516 			    /* When setting the local value of a global
4517 			     * option, the old value may be the global value. */
4518 			    if (((int)options[opt_idx].indir & PV_BOTH)
4519 						   && (opt_flags & OPT_LOCAL))
4520 				origval = *(char_u **)get_varp(
4521 							   &options[opt_idx]);
4522 			    else
4523 				origval = oldval;
4524 
4525 			    /*
4526 			     * Copy the new string into allocated memory.
4527 			     * Can't use set_string_option_direct(), because
4528 			     * we need to remove the backslashes.
4529 			     */
4530 			    /* get a bit too much */
4531 			    newlen = (unsigned)STRLEN(arg) + 1;
4532 			    if (adding || prepending || removing)
4533 				newlen += (unsigned)STRLEN(origval) + 1;
4534 			    newval = alloc(newlen);
4535 			    if (newval == NULL)  /* out of mem, don't change */
4536 				break;
4537 			    s = newval;
4538 
4539 			    /*
4540 			     * Copy the string, skip over escaped chars.
4541 			     * For MS-DOS and WIN32 backslashes before normal
4542 			     * file name characters are not removed, and keep
4543 			     * backslash at start, for "\\machine\path", but
4544 			     * do remove it for "\\\\machine\\path".
4545 			     * The reverse is found in ExpandOldSetting().
4546 			     */
4547 			    while (*arg && !vim_iswhite(*arg))
4548 			    {
4549 				if (*arg == '\\' && arg[1] != NUL
4550 #ifdef BACKSLASH_IN_FILENAME
4551 					&& !((flags & P_EXPAND)
4552 						&& vim_isfilec(arg[1])
4553 						&& (arg[1] != '\\'
4554 						    || (s == newval
4555 							&& arg[2] != '\\')))
4556 #endif
4557 								    )
4558 				    ++arg;	/* remove backslash */
4559 #ifdef FEAT_MBYTE
4560 				if (has_mbyte
4561 					&& (i = (*mb_ptr2len)(arg)) > 1)
4562 				{
4563 				    /* copy multibyte char */
4564 				    mch_memmove(s, arg, (size_t)i);
4565 				    arg += i;
4566 				    s += i;
4567 				}
4568 				else
4569 #endif
4570 				    *s++ = *arg++;
4571 			    }
4572 			    *s = NUL;
4573 
4574 			    /*
4575 			     * Expand environment variables and ~.
4576 			     * Don't do it when adding without inserting a
4577 			     * comma.
4578 			     */
4579 			    if (!(adding || prepending || removing)
4580 							 || (flags & P_COMMA))
4581 			    {
4582 				s = option_expand(opt_idx, newval);
4583 				if (s != NULL)
4584 				{
4585 				    vim_free(newval);
4586 				    newlen = (unsigned)STRLEN(s) + 1;
4587 				    if (adding || prepending || removing)
4588 					newlen += (unsigned)STRLEN(origval) + 1;
4589 				    newval = alloc(newlen);
4590 				    if (newval == NULL)
4591 					break;
4592 				    STRCPY(newval, s);
4593 				}
4594 			    }
4595 
4596 			    /* locate newval[] in origval[] when removing it
4597 			     * and when adding to avoid duplicates */
4598 			    i = 0;	/* init for GCC */
4599 			    if (removing || (flags & P_NODUP))
4600 			    {
4601 				i = (int)STRLEN(newval);
4602 				bs = 0;
4603 				for (s = origval; *s; ++s)
4604 				{
4605 				    if ((!(flags & P_COMMA)
4606 						|| s == origval
4607 						|| (s[-1] == ',' && !(bs & 1)))
4608 					    && STRNCMP(s, newval, i) == 0
4609 					    && (!(flags & P_COMMA)
4610 						|| s[i] == ','
4611 						|| s[i] == NUL))
4612 					break;
4613 				    /* Count backspaces.  Only a comma with an
4614 				     * even number of backspaces before it is
4615 				     * recognized as a separator */
4616 				    if (s > origval && s[-1] == '\\')
4617 					++bs;
4618 				    else
4619 					bs = 0;
4620 				}
4621 
4622 				/* do not add if already there */
4623 				if ((adding || prepending) && *s)
4624 				{
4625 				    prepending = FALSE;
4626 				    adding = FALSE;
4627 				    STRCPY(newval, origval);
4628 				}
4629 			    }
4630 
4631 			    /* concatenate the two strings; add a ',' if
4632 			     * needed */
4633 			    if (adding || prepending)
4634 			    {
4635 				comma = ((flags & P_COMMA) && *origval != NUL
4636 							   && *newval != NUL);
4637 				if (adding)
4638 				{
4639 				    i = (int)STRLEN(origval);
4640 				    mch_memmove(newval + i + comma, newval,
4641 							  STRLEN(newval) + 1);
4642 				    mch_memmove(newval, origval, (size_t)i);
4643 				}
4644 				else
4645 				{
4646 				    i = (int)STRLEN(newval);
4647 				    STRMOVE(newval + i + comma, origval);
4648 				}
4649 				if (comma)
4650 				    newval[i] = ',';
4651 			    }
4652 
4653 			    /* Remove newval[] from origval[]. (Note: "i" has
4654 			     * been set above and is used here). */
4655 			    if (removing)
4656 			    {
4657 				STRCPY(newval, origval);
4658 				if (*s)
4659 				{
4660 				    /* may need to remove a comma */
4661 				    if (flags & P_COMMA)
4662 				    {
4663 					if (s == origval)
4664 					{
4665 					    /* include comma after string */
4666 					    if (s[i] == ',')
4667 						++i;
4668 					}
4669 					else
4670 					{
4671 					    /* include comma before string */
4672 					    --s;
4673 					    ++i;
4674 					}
4675 				    }
4676 				    STRMOVE(newval + (s - origval), s + i);
4677 				}
4678 			    }
4679 
4680 			    if (flags & P_FLAGLIST)
4681 			    {
4682 				/* Remove flags that appear twice. */
4683 				for (s = newval; *s; ++s)
4684 				    if ((!(flags & P_COMMA) || *s != ',')
4685 					    && vim_strchr(s + 1, *s) != NULL)
4686 				    {
4687 					STRMOVE(s, s + 1);
4688 					--s;
4689 				    }
4690 			    }
4691 
4692 			    if (save_arg != NULL)   /* number for 'whichwrap' */
4693 				arg = save_arg;
4694 			    new_value_alloced = TRUE;
4695 			}
4696 
4697 			/* Set the new value. */
4698 			*(char_u **)(varp) = newval;
4699 
4700 			/* Handle side effects, and set the global value for
4701 			 * ":set" on local options. */
4702 			errmsg = did_set_string_option(opt_idx, (char_u **)varp,
4703 				new_value_alloced, oldval, errbuf, opt_flags);
4704 
4705 			/* If error detected, print the error message. */
4706 			if (errmsg != NULL)
4707 			    goto skip;
4708 		    }
4709 		    else	    /* key code option */
4710 		    {
4711 			char_u	    *p;
4712 
4713 			if (nextchar == '&')
4714 			{
4715 			    if (add_termcap_entry(key_name, TRUE) == FAIL)
4716 				errmsg = (char_u *)N_("E522: Not found in termcap");
4717 			}
4718 			else
4719 			{
4720 			    ++arg; /* jump to after the '=' or ':' */
4721 			    for (p = arg; *p && !vim_iswhite(*p); ++p)
4722 				if (*p == '\\' && p[1] != NUL)
4723 				    ++p;
4724 			    nextchar = *p;
4725 			    *p = NUL;
4726 			    add_termcode(key_name, arg, FALSE);
4727 			    *p = nextchar;
4728 			}
4729 			if (full_screen)
4730 			    ttest(FALSE);
4731 			redraw_all_later(CLEAR);
4732 		    }
4733 		}
4734 
4735 		if (opt_idx >= 0)
4736 		    did_set_option(opt_idx, opt_flags,
4737 					 !prepending && !adding && !removing);
4738 	    }
4739 
4740 skip:
4741 	    /*
4742 	     * Advance to next argument.
4743 	     * - skip until a blank found, taking care of backslashes
4744 	     * - skip blanks
4745 	     * - skip one "=val" argument (for hidden options ":set gfn =xx")
4746 	     */
4747 	    for (i = 0; i < 2 ; ++i)
4748 	    {
4749 		while (*arg != NUL && !vim_iswhite(*arg))
4750 		    if (*arg++ == '\\' && *arg != NUL)
4751 			++arg;
4752 		arg = skipwhite(arg);
4753 		if (*arg != '=')
4754 		    break;
4755 	    }
4756 	}
4757 
4758 	if (errmsg != NULL)
4759 	{
4760 	    vim_strncpy(IObuff, (char_u *)_(errmsg), IOSIZE - 1);
4761 	    i = (int)STRLEN(IObuff) + 2;
4762 	    if (i + (arg - startarg) < IOSIZE)
4763 	    {
4764 		/* append the argument with the error */
4765 		STRCAT(IObuff, ": ");
4766 		mch_memmove(IObuff + i, startarg, (arg - startarg));
4767 		IObuff[i + (arg - startarg)] = NUL;
4768 	    }
4769 	    /* make sure all characters are printable */
4770 	    trans_characters(IObuff, IOSIZE);
4771 
4772 	    ++no_wait_return;	/* wait_return done later */
4773 	    emsg(IObuff);	/* show error highlighted */
4774 	    --no_wait_return;
4775 
4776 	    return FAIL;
4777 	}
4778 
4779 	arg = skipwhite(arg);
4780     }
4781 
4782 theend:
4783     if (silent_mode && did_show)
4784     {
4785 	/* After displaying option values in silent mode. */
4786 	silent_mode = FALSE;
4787 	info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
4788 	msg_putchar('\n');
4789 	cursor_on();		/* msg_start() switches it off */
4790 	out_flush();
4791 	silent_mode = TRUE;
4792 	info_message = FALSE;	/* use mch_msg(), not mch_errmsg() */
4793     }
4794 
4795     return OK;
4796 }
4797 
4798 /*
4799  * Call this when an option has been given a new value through a user command.
4800  * Sets the P_WAS_SET flag and takes care of the P_INSECURE flag.
4801  */
4802     static void
4803 did_set_option(opt_idx, opt_flags, new_value)
4804     int	    opt_idx;
4805     int	    opt_flags;	    /* possibly with OPT_MODELINE */
4806     int	    new_value;	    /* value was replaced completely */
4807 {
4808     long_u	*p;
4809 
4810     options[opt_idx].flags |= P_WAS_SET;
4811 
4812     /* When an option is set in the sandbox, from a modeline or in secure mode
4813      * set the P_INSECURE flag.  Otherwise, if a new value is stored reset the
4814      * flag. */
4815     p = insecure_flag(opt_idx, opt_flags);
4816     if (secure
4817 #ifdef HAVE_SANDBOX
4818 	    || sandbox != 0
4819 #endif
4820 	    || (opt_flags & OPT_MODELINE))
4821 	*p = *p | P_INSECURE;
4822     else if (new_value)
4823 	*p = *p & ~P_INSECURE;
4824 }
4825 
4826     static char_u *
4827 illegal_char(errbuf, c)
4828     char_u	*errbuf;
4829     int		c;
4830 {
4831     if (errbuf == NULL)
4832 	return (char_u *)"";
4833     sprintf((char *)errbuf, _("E539: Illegal character <%s>"),
4834 							(char *)transchar(c));
4835     return errbuf;
4836 }
4837 
4838 /*
4839  * Convert a key name or string into a key value.
4840  * Used for 'wildchar' and 'cedit' options.
4841  */
4842     static int
4843 string_to_key(arg)
4844     char_u	*arg;
4845 {
4846     if (*arg == '<')
4847 	return find_key_option(arg + 1);
4848     if (*arg == '^')
4849 	return Ctrl_chr(arg[1]);
4850     return *arg;
4851 }
4852 
4853 #ifdef FEAT_CMDWIN
4854 /*
4855  * Check value of 'cedit' and set cedit_key.
4856  * Returns NULL if value is OK, error message otherwise.
4857  */
4858     static char_u *
4859 check_cedit()
4860 {
4861     int n;
4862 
4863     if (*p_cedit == NUL)
4864 	cedit_key = -1;
4865     else
4866     {
4867 	n = string_to_key(p_cedit);
4868 	if (vim_isprintc(n))
4869 	    return e_invarg;
4870 	cedit_key = n;
4871     }
4872     return NULL;
4873 }
4874 #endif
4875 
4876 #ifdef FEAT_TITLE
4877 /*
4878  * When changing 'title', 'titlestring', 'icon' or 'iconstring', call
4879  * maketitle() to create and display it.
4880  * When switching the title or icon off, call mch_restore_title() to get
4881  * the old value back.
4882  */
4883     static void
4884 did_set_title(icon)
4885     int	    icon;	    /* Did set icon instead of title */
4886 {
4887     if (starting != NO_SCREEN
4888 #ifdef FEAT_GUI
4889 	    && !gui.starting
4890 #endif
4891 				)
4892     {
4893 	maketitle();
4894 	if (icon)
4895 	{
4896 	    if (!p_icon)
4897 		mch_restore_title(2);
4898 	}
4899 	else
4900 	{
4901 	    if (!p_title)
4902 		mch_restore_title(1);
4903 	}
4904     }
4905 }
4906 #endif
4907 
4908 /*
4909  * set_options_bin -  called when 'bin' changes value.
4910  */
4911     void
4912 set_options_bin(oldval, newval, opt_flags)
4913     int		oldval;
4914     int		newval;
4915     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
4916 {
4917     /*
4918      * The option values that are changed when 'bin' changes are
4919      * copied when 'bin is set and restored when 'bin' is reset.
4920      */
4921     if (newval)
4922     {
4923 	if (!oldval)		/* switched on */
4924 	{
4925 	    if (!(opt_flags & OPT_GLOBAL))
4926 	    {
4927 		curbuf->b_p_tw_nobin = curbuf->b_p_tw;
4928 		curbuf->b_p_wm_nobin = curbuf->b_p_wm;
4929 		curbuf->b_p_ml_nobin = curbuf->b_p_ml;
4930 		curbuf->b_p_et_nobin = curbuf->b_p_et;
4931 	    }
4932 	    if (!(opt_flags & OPT_LOCAL))
4933 	    {
4934 		p_tw_nobin = p_tw;
4935 		p_wm_nobin = p_wm;
4936 		p_ml_nobin = p_ml;
4937 		p_et_nobin = p_et;
4938 	    }
4939 	}
4940 
4941 	if (!(opt_flags & OPT_GLOBAL))
4942 	{
4943 	    curbuf->b_p_tw = 0;	/* no automatic line wrap */
4944 	    curbuf->b_p_wm = 0;	/* no automatic line wrap */
4945 	    curbuf->b_p_ml = 0;	/* no modelines */
4946 	    curbuf->b_p_et = 0;	/* no expandtab */
4947 	}
4948 	if (!(opt_flags & OPT_LOCAL))
4949 	{
4950 	    p_tw = 0;
4951 	    p_wm = 0;
4952 	    p_ml = FALSE;
4953 	    p_et = FALSE;
4954 	    p_bin = TRUE;	/* needed when called for the "-b" argument */
4955 	}
4956     }
4957     else if (oldval)		/* switched off */
4958     {
4959 	if (!(opt_flags & OPT_GLOBAL))
4960 	{
4961 	    curbuf->b_p_tw = curbuf->b_p_tw_nobin;
4962 	    curbuf->b_p_wm = curbuf->b_p_wm_nobin;
4963 	    curbuf->b_p_ml = curbuf->b_p_ml_nobin;
4964 	    curbuf->b_p_et = curbuf->b_p_et_nobin;
4965 	}
4966 	if (!(opt_flags & OPT_LOCAL))
4967 	{
4968 	    p_tw = p_tw_nobin;
4969 	    p_wm = p_wm_nobin;
4970 	    p_ml = p_ml_nobin;
4971 	    p_et = p_et_nobin;
4972 	}
4973     }
4974 }
4975 
4976 #ifdef FEAT_VIMINFO
4977 /*
4978  * Find the parameter represented by the given character (eg ', :, ", or /),
4979  * and return its associated value in the 'viminfo' string.
4980  * Only works for number parameters, not for 'r' or 'n'.
4981  * If the parameter is not specified in the string or there is no following
4982  * number, return -1.
4983  */
4984     int
4985 get_viminfo_parameter(type)
4986     int	    type;
4987 {
4988     char_u  *p;
4989 
4990     p = find_viminfo_parameter(type);
4991     if (p != NULL && VIM_ISDIGIT(*p))
4992 	return atoi((char *)p);
4993     return -1;
4994 }
4995 
4996 /*
4997  * Find the parameter represented by the given character (eg ''', ':', '"', or
4998  * '/') in the 'viminfo' option and return a pointer to the string after it.
4999  * Return NULL if the parameter is not specified in the string.
5000  */
5001     char_u *
5002 find_viminfo_parameter(type)
5003     int	    type;
5004 {
5005     char_u  *p;
5006 
5007     for (p = p_viminfo; *p; ++p)
5008     {
5009 	if (*p == type)
5010 	    return p + 1;
5011 	if (*p == 'n')		    /* 'n' is always the last one */
5012 	    break;
5013 	p = vim_strchr(p, ',');	    /* skip until next ',' */
5014 	if (p == NULL)		    /* hit the end without finding parameter */
5015 	    break;
5016     }
5017     return NULL;
5018 }
5019 #endif
5020 
5021 /*
5022  * Expand environment variables for some string options.
5023  * These string options cannot be indirect!
5024  * If "val" is NULL expand the current value of the option.
5025  * Return pointer to NameBuff, or NULL when not expanded.
5026  */
5027     static char_u *
5028 option_expand(opt_idx, val)
5029     int		opt_idx;
5030     char_u	*val;
5031 {
5032     /* if option doesn't need expansion nothing to do */
5033     if (!(options[opt_idx].flags & P_EXPAND) || options[opt_idx].var == NULL)
5034 	return NULL;
5035 
5036     /* If val is longer than MAXPATHL no meaningful expansion can be done,
5037      * expand_env() would truncate the string. */
5038     if (val != NULL && STRLEN(val) > MAXPATHL)
5039 	return NULL;
5040 
5041     if (val == NULL)
5042 	val = *(char_u **)options[opt_idx].var;
5043 
5044     /*
5045      * Expanding this with NameBuff, expand_env() must not be passed IObuff.
5046      * Escape spaces when expanding 'tags', they are used to separate file
5047      * names.
5048      * For 'spellsuggest' expand after "file:".
5049      */
5050     expand_env_esc(val, NameBuff, MAXPATHL,
5051 	    (char_u **)options[opt_idx].var == &p_tags, FALSE,
5052 #ifdef FEAT_SPELL
5053 	    (char_u **)options[opt_idx].var == &p_sps ? (char_u *)"file:" :
5054 #endif
5055 				  NULL);
5056     if (STRCMP(NameBuff, val) == 0)   /* they are the same */
5057 	return NULL;
5058 
5059     return NameBuff;
5060 }
5061 
5062 /*
5063  * After setting various option values: recompute variables that depend on
5064  * option values.
5065  */
5066     static void
5067 didset_options()
5068 {
5069     /* initialize the table for 'iskeyword' et.al. */
5070     (void)init_chartab();
5071 
5072 #ifdef FEAT_MBYTE
5073     (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE);
5074 #endif
5075     (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE);
5076 #ifdef FEAT_SESSION
5077     (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE);
5078     (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE);
5079 #endif
5080 #ifdef FEAT_FOLDING
5081     (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE);
5082 #endif
5083     (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE);
5084 #ifdef FEAT_VIRTUALEDIT
5085     (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE);
5086 #endif
5087 #if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
5088     (void)opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE);
5089 #endif
5090 #ifdef FEAT_SPELL
5091     (void)spell_check_msm();
5092     (void)spell_check_sps();
5093     (void)compile_cap_prog(curbuf);
5094 #endif
5095 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
5096     (void)opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, TRUE);
5097 #endif
5098 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
5099     (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE);
5100 #endif
5101 #ifdef FEAT_CMDWIN
5102     /* set cedit_key */
5103     (void)check_cedit();
5104 #endif
5105 }
5106 
5107 /*
5108  * Check for string options that are NULL (normally only termcap options).
5109  */
5110     void
5111 check_options()
5112 {
5113     int		opt_idx;
5114 
5115     for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++)
5116 	if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL)
5117 	    check_string_option((char_u **)get_varp(&(options[opt_idx])));
5118 }
5119 
5120 /*
5121  * Check string options in a buffer for NULL value.
5122  */
5123     void
5124 check_buf_options(buf)
5125     buf_T	*buf;
5126 {
5127 #if defined(FEAT_QUICKFIX)
5128     check_string_option(&buf->b_p_bh);
5129     check_string_option(&buf->b_p_bt);
5130 #endif
5131 #ifdef FEAT_MBYTE
5132     check_string_option(&buf->b_p_fenc);
5133 #endif
5134     check_string_option(&buf->b_p_ff);
5135 #ifdef FEAT_FIND_ID
5136     check_string_option(&buf->b_p_def);
5137     check_string_option(&buf->b_p_inc);
5138 # ifdef FEAT_EVAL
5139     check_string_option(&buf->b_p_inex);
5140 # endif
5141 #endif
5142 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
5143     check_string_option(&buf->b_p_inde);
5144     check_string_option(&buf->b_p_indk);
5145 #endif
5146 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
5147     check_string_option(&buf->b_p_bexpr);
5148 #endif
5149 #if defined(FEAT_EVAL)
5150     check_string_option(&buf->b_p_fex);
5151 #endif
5152 #ifdef FEAT_CRYPT
5153     check_string_option(&buf->b_p_key);
5154 #endif
5155     check_string_option(&buf->b_p_kp);
5156     check_string_option(&buf->b_p_mps);
5157     check_string_option(&buf->b_p_fo);
5158     check_string_option(&buf->b_p_flp);
5159     check_string_option(&buf->b_p_isk);
5160 #ifdef FEAT_COMMENTS
5161     check_string_option(&buf->b_p_com);
5162 #endif
5163 #ifdef FEAT_FOLDING
5164     check_string_option(&buf->b_p_cms);
5165 #endif
5166     check_string_option(&buf->b_p_nf);
5167 #ifdef FEAT_TEXTOBJ
5168     check_string_option(&buf->b_p_qe);
5169 #endif
5170 #ifdef FEAT_SYN_HL
5171     check_string_option(&buf->b_p_syn);
5172 #endif
5173 #ifdef FEAT_SPELL
5174     check_string_option(&buf->b_p_spc);
5175     check_string_option(&buf->b_p_spf);
5176     check_string_option(&buf->b_p_spl);
5177 #endif
5178 #ifdef FEAT_SEARCHPATH
5179     check_string_option(&buf->b_p_sua);
5180 #endif
5181 #ifdef FEAT_CINDENT
5182     check_string_option(&buf->b_p_cink);
5183     check_string_option(&buf->b_p_cino);
5184 #endif
5185 #ifdef FEAT_AUTOCMD
5186     check_string_option(&buf->b_p_ft);
5187 #endif
5188 #ifdef FEAT_OSFILETYPE
5189     check_string_option(&buf->b_p_oft);
5190 #endif
5191 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
5192     check_string_option(&buf->b_p_cinw);
5193 #endif
5194 #ifdef FEAT_INS_EXPAND
5195     check_string_option(&buf->b_p_cpt);
5196 #endif
5197 #ifdef FEAT_COMPL_FUNC
5198     check_string_option(&buf->b_p_cfu);
5199     check_string_option(&buf->b_p_ofu);
5200 #endif
5201 #ifdef FEAT_KEYMAP
5202     check_string_option(&buf->b_p_keymap);
5203 #endif
5204 #ifdef FEAT_QUICKFIX
5205     check_string_option(&buf->b_p_gp);
5206     check_string_option(&buf->b_p_mp);
5207     check_string_option(&buf->b_p_efm);
5208 #endif
5209     check_string_option(&buf->b_p_ep);
5210     check_string_option(&buf->b_p_path);
5211     check_string_option(&buf->b_p_tags);
5212 #ifdef FEAT_INS_EXPAND
5213     check_string_option(&buf->b_p_dict);
5214     check_string_option(&buf->b_p_tsr);
5215 #endif
5216 }
5217 
5218 /*
5219  * Free the string allocated for an option.
5220  * Checks for the string being empty_option. This may happen if we're out of
5221  * memory, vim_strsave() returned NULL, which was replaced by empty_option by
5222  * check_options().
5223  * Does NOT check for P_ALLOCED flag!
5224  */
5225     void
5226 free_string_option(p)
5227     char_u	*p;
5228 {
5229     if (p != empty_option)
5230 	vim_free(p);
5231 }
5232 
5233     void
5234 clear_string_option(pp)
5235     char_u	**pp;
5236 {
5237     if (*pp != empty_option)
5238 	vim_free(*pp);
5239     *pp = empty_option;
5240 }
5241 
5242     static void
5243 check_string_option(pp)
5244     char_u	**pp;
5245 {
5246     if (*pp == NULL)
5247 	*pp = empty_option;
5248 }
5249 
5250 /*
5251  * Mark a terminal option as allocated, found by a pointer into term_strings[].
5252  */
5253     void
5254 set_term_option_alloced(p)
5255     char_u **p;
5256 {
5257     int		opt_idx;
5258 
5259     for (opt_idx = 1; options[opt_idx].fullname != NULL; opt_idx++)
5260 	if (options[opt_idx].var == (char_u *)p)
5261 	{
5262 	    options[opt_idx].flags |= P_ALLOCED;
5263 	    return;
5264 	}
5265     return; /* cannot happen: didn't find it! */
5266 }
5267 
5268 #if defined(FEAT_EVAL) || defined(PROTO)
5269 /*
5270  * Return TRUE when option "opt" was set from a modeline or in secure mode.
5271  * Return FALSE when it wasn't.
5272  * Return -1 for an unknown option.
5273  */
5274     int
5275 was_set_insecurely(opt, opt_flags)
5276     char_u  *opt;
5277     int	    opt_flags;
5278 {
5279     int	    idx = findoption(opt);
5280     long_u  *flagp;
5281 
5282     if (idx >= 0)
5283     {
5284 	flagp = insecure_flag(idx, opt_flags);
5285 	return (*flagp & P_INSECURE) != 0;
5286     }
5287     EMSG2(_(e_intern2), "was_set_insecurely()");
5288     return -1;
5289 }
5290 
5291 /*
5292  * Get a pointer to the flags used for the P_INSECURE flag of option
5293  * "opt_idx".  For some local options a local flags field is used.
5294  */
5295     static long_u *
5296 insecure_flag(opt_idx, opt_flags)
5297     int		opt_idx;
5298     int		opt_flags;
5299 {
5300     if (opt_flags & OPT_LOCAL)
5301 	switch ((int)options[opt_idx].indir)
5302 	{
5303 #ifdef FEAT_STL_OPT
5304 	    case PV_STL:	return &curwin->w_p_stl_flags;
5305 #endif
5306 #ifdef FEAT_EVAL
5307 # ifdef FEAT_FOLDING
5308 	    case PV_FDE:	return &curwin->w_p_fde_flags;
5309 	    case PV_FDT:	return &curwin->w_p_fdt_flags;
5310 # endif
5311 # ifdef FEAT_BEVAL
5312 	    case PV_BEXPR:	return &curbuf->b_p_bexpr_flags;
5313 # endif
5314 # if defined(FEAT_CINDENT)
5315 	    case PV_INDE:	return &curbuf->b_p_inde_flags;
5316 # endif
5317 	    case PV_FEX:	return &curbuf->b_p_fex_flags;
5318 # ifdef FEAT_FIND_ID
5319 	    case PV_INEX:	return &curbuf->b_p_inex_flags;
5320 # endif
5321 #endif
5322 	}
5323 
5324     /* Nothing special, return global flags field. */
5325     return &options[opt_idx].flags;
5326 }
5327 #endif
5328 
5329 #ifdef FEAT_TITLE
5330 static void redraw_titles __ARGS((void));
5331 
5332 /*
5333  * Redraw the window title and/or tab page text later.
5334  */
5335 static void redraw_titles()
5336 {
5337     need_maketitle = TRUE;
5338 # ifdef FEAT_WINDOWS
5339     redraw_tabline = TRUE;
5340 # endif
5341 }
5342 #endif
5343 
5344 /*
5345  * Set a string option to a new value (without checking the effect).
5346  * The string is copied into allocated memory.
5347  * if ("opt_idx" == -1) "name" is used, otherwise "opt_idx" is used.
5348  * When "set_sid" is zero set the scriptID to current_SID.  When "set_sid" is
5349  * SID_NONE don't set the scriptID.  Otherwise set the scriptID to "set_sid".
5350  */
5351     void
5352 set_string_option_direct(name, opt_idx, val, opt_flags, set_sid)
5353     char_u	*name;
5354     int		opt_idx;
5355     char_u	*val;
5356     int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
5357     int		set_sid UNUSED;
5358 {
5359     char_u	*s;
5360     char_u	**varp;
5361     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
5362     int		idx = opt_idx;
5363 
5364     if (idx == -1)		/* use name */
5365     {
5366 	idx = findoption(name);
5367 	if (idx < 0)	/* not found (should not happen) */
5368 	{
5369 	    EMSG2(_(e_intern2), "set_string_option_direct()");
5370 	    return;
5371 	}
5372     }
5373 
5374     if (options[idx].var == NULL)	/* can't set hidden option */
5375 	return;
5376 
5377     s = vim_strsave(val);
5378     if (s != NULL)
5379     {
5380 	varp = (char_u **)get_varp_scope(&(options[idx]),
5381 					       both ? OPT_LOCAL : opt_flags);
5382 	if ((opt_flags & OPT_FREE) && (options[idx].flags & P_ALLOCED))
5383 	    free_string_option(*varp);
5384 	*varp = s;
5385 
5386 	/* For buffer/window local option may also set the global value. */
5387 	if (both)
5388 	    set_string_option_global(idx, varp);
5389 
5390 	options[idx].flags |= P_ALLOCED;
5391 
5392 	/* When setting both values of a global option with a local value,
5393 	 * make the local value empty, so that the global value is used. */
5394 	if (((int)options[idx].indir & PV_BOTH) && both)
5395 	{
5396 	    free_string_option(*varp);
5397 	    *varp = empty_option;
5398 	}
5399 # ifdef FEAT_EVAL
5400 	if (set_sid != SID_NONE)
5401 	    set_option_scriptID_idx(idx, opt_flags,
5402 					set_sid == 0 ? current_SID : set_sid);
5403 # endif
5404     }
5405 }
5406 
5407 /*
5408  * Set global value for string option when it's a local option.
5409  */
5410     static void
5411 set_string_option_global(opt_idx, varp)
5412     int		opt_idx;	/* option index */
5413     char_u	**varp;		/* pointer to option variable */
5414 {
5415     char_u	**p, *s;
5416 
5417     /* the global value is always allocated */
5418     if (options[opt_idx].var == VAR_WIN)
5419 	p = (char_u **)GLOBAL_WO(varp);
5420     else
5421 	p = (char_u **)options[opt_idx].var;
5422     if (options[opt_idx].indir != PV_NONE
5423 	    && p != varp
5424 	    && (s = vim_strsave(*varp)) != NULL)
5425     {
5426 	free_string_option(*p);
5427 	*p = s;
5428     }
5429 }
5430 
5431 /*
5432  * Set a string option to a new value, and handle the effects.
5433  */
5434     static void
5435 set_string_option(opt_idx, value, opt_flags)
5436     int		opt_idx;
5437     char_u	*value;
5438     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
5439 {
5440     char_u	*s;
5441     char_u	**varp;
5442     char_u	*oldval;
5443 
5444     if (options[opt_idx].var == NULL)	/* don't set hidden option */
5445 	return;
5446 
5447     s = vim_strsave(value);
5448     if (s != NULL)
5449     {
5450 	varp = (char_u **)get_varp_scope(&(options[opt_idx]),
5451 		(opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
5452 		    ? (((int)options[opt_idx].indir & PV_BOTH)
5453 			? OPT_GLOBAL : OPT_LOCAL)
5454 		    : opt_flags);
5455 	oldval = *varp;
5456 	*varp = s;
5457 	if (did_set_string_option(opt_idx, varp, TRUE, oldval, NULL,
5458 							   opt_flags) == NULL)
5459 	    did_set_option(opt_idx, opt_flags, TRUE);
5460     }
5461 }
5462 
5463 /*
5464  * Handle string options that need some action to perform when changed.
5465  * Returns NULL for success, or an error message for an error.
5466  */
5467     static char_u *
5468 did_set_string_option(opt_idx, varp, new_value_alloced, oldval, errbuf,
5469 								    opt_flags)
5470     int		opt_idx;		/* index in options[] table */
5471     char_u	**varp;			/* pointer to the option variable */
5472     int		new_value_alloced;	/* new value was allocated */
5473     char_u	*oldval;		/* previous value of the option */
5474     char_u	*errbuf;		/* buffer for errors, or NULL */
5475     int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
5476 {
5477     char_u	*errmsg = NULL;
5478     char_u	*s, *p;
5479     int		did_chartab = FALSE;
5480     char_u	**gvarp;
5481     long_u	free_oldval = (options[opt_idx].flags & P_ALLOCED);
5482 #ifdef FEAT_GUI
5483     /* set when changing an option that only requires a redraw in the GUI */
5484     int		redraw_gui_only = FALSE;
5485 #endif
5486 
5487     /* Get the global option to compare with, otherwise we would have to check
5488      * two values for all local options. */
5489     gvarp = (char_u **)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL);
5490 
5491     /* Disallow changing some options from secure mode */
5492     if ((secure
5493 #ifdef HAVE_SANDBOX
5494 		|| sandbox != 0
5495 #endif
5496 		) && (options[opt_idx].flags & P_SECURE))
5497     {
5498 	errmsg = e_secure;
5499     }
5500 
5501     /* Check for a "normal" file name in some options.  Disallow a path
5502      * separator (slash and/or backslash), wildcards and characters that are
5503      * often illegal in a file name. */
5504     else if ((options[opt_idx].flags & P_NFNAME)
5505 			 && vim_strpbrk(*varp, (char_u *)"/\\*?[|<>") != NULL)
5506     {
5507 	errmsg = e_invarg;
5508     }
5509 
5510     /* 'term' */
5511     else if (varp == &T_NAME)
5512     {
5513 	if (T_NAME[0] == NUL)
5514 	    errmsg = (char_u *)N_("E529: Cannot set 'term' to empty string");
5515 #ifdef FEAT_GUI
5516 	if (gui.in_use)
5517 	    errmsg = (char_u *)N_("E530: Cannot change term in GUI");
5518 	else if (term_is_gui(T_NAME))
5519 	    errmsg = (char_u *)N_("E531: Use \":gui\" to start the GUI");
5520 #endif
5521 	else if (set_termname(T_NAME) == FAIL)
5522 	    errmsg = (char_u *)N_("E522: Not found in termcap");
5523 	else
5524 	    /* Screen colors may have changed. */
5525 	    redraw_later_clear();
5526     }
5527 
5528     /* 'backupcopy' */
5529     else if (varp == &p_bkc)
5530     {
5531 	if (opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE) != OK)
5532 	    errmsg = e_invarg;
5533 	if (((bkc_flags & BKC_AUTO) != 0)
5534 		+ ((bkc_flags & BKC_YES) != 0)
5535 		+ ((bkc_flags & BKC_NO) != 0) != 1)
5536 	{
5537 	    /* Must have exactly one of "auto", "yes"  and "no". */
5538 	    (void)opt_strings_flags(oldval, p_bkc_values, &bkc_flags, TRUE);
5539 	    errmsg = e_invarg;
5540 	}
5541     }
5542 
5543     /* 'backupext' and 'patchmode' */
5544     else if (varp == &p_bex || varp == &p_pm)
5545     {
5546 	if (STRCMP(*p_bex == '.' ? p_bex + 1 : p_bex,
5547 		     *p_pm == '.' ? p_pm + 1 : p_pm) == 0)
5548 	    errmsg = (char_u *)N_("E589: 'backupext' and 'patchmode' are equal");
5549     }
5550 
5551     /*
5552      * 'isident', 'iskeyword', 'isprint or 'isfname' option: refill chartab[]
5553      * If the new option is invalid, use old value.  'lisp' option: refill
5554      * chartab[] for '-' char
5555      */
5556     else if (  varp == &p_isi
5557 	    || varp == &(curbuf->b_p_isk)
5558 	    || varp == &p_isp
5559 	    || varp == &p_isf)
5560     {
5561 	if (init_chartab() == FAIL)
5562 	{
5563 	    did_chartab = TRUE;	    /* need to restore it below */
5564 	    errmsg = e_invarg;	    /* error in value */
5565 	}
5566     }
5567 
5568     /* 'helpfile' */
5569     else if (varp == &p_hf)
5570     {
5571 	/* May compute new values for $VIM and $VIMRUNTIME */
5572 	if (didset_vim)
5573 	{
5574 	    vim_setenv((char_u *)"VIM", (char_u *)"");
5575 	    didset_vim = FALSE;
5576 	}
5577 	if (didset_vimruntime)
5578 	{
5579 	    vim_setenv((char_u *)"VIMRUNTIME", (char_u *)"");
5580 	    didset_vimruntime = FALSE;
5581 	}
5582     }
5583 
5584 #ifdef FEAT_MULTI_LANG
5585     /* 'helplang' */
5586     else if (varp == &p_hlg)
5587     {
5588 	/* Check for "", "ab", "ab,cd", etc. */
5589 	for (s = p_hlg; *s != NUL; s += 3)
5590 	{
5591 	    if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL))
5592 	    {
5593 		errmsg = e_invarg;
5594 		break;
5595 	    }
5596 	    if (s[2] == NUL)
5597 		break;
5598 	}
5599     }
5600 #endif
5601 
5602     /* 'highlight' */
5603     else if (varp == &p_hl)
5604     {
5605 	if (highlight_changed() == FAIL)
5606 	    errmsg = e_invarg;	/* invalid flags */
5607     }
5608 
5609     /* 'nrformats' */
5610     else if (gvarp == &p_nf)
5611     {
5612 	if (check_opt_strings(*varp, p_nf_values, TRUE) != OK)
5613 	    errmsg = e_invarg;
5614     }
5615 
5616 #ifdef FEAT_SESSION
5617     /* 'sessionoptions' */
5618     else if (varp == &p_ssop)
5619     {
5620 	if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK)
5621 	    errmsg = e_invarg;
5622 	if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR))
5623 	{
5624 	    /* Don't allow both "sesdir" and "curdir". */
5625 	    (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, TRUE);
5626 	    errmsg = e_invarg;
5627 	}
5628     }
5629     /* 'viewoptions' */
5630     else if (varp == &p_vop)
5631     {
5632 	if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE) != OK)
5633 	    errmsg = e_invarg;
5634     }
5635 #endif
5636 
5637     /* 'scrollopt' */
5638 #ifdef FEAT_SCROLLBIND
5639     else if (varp == &p_sbo)
5640     {
5641 	if (check_opt_strings(p_sbo, p_scbopt_values, TRUE) != OK)
5642 	    errmsg = e_invarg;
5643     }
5644 #endif
5645 
5646     /* 'ambiwidth' */
5647 #ifdef FEAT_MBYTE
5648     else if (varp == &p_ambw)
5649     {
5650 	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
5651 	    errmsg = e_invarg;
5652     }
5653 #endif
5654 
5655     /* 'background' */
5656     else if (varp == &p_bg)
5657     {
5658 	if (check_opt_strings(p_bg, p_bg_values, FALSE) == OK)
5659 	{
5660 #ifdef FEAT_EVAL
5661 	    int dark = (*p_bg == 'd');
5662 #endif
5663 
5664 	    init_highlight(FALSE, FALSE);
5665 
5666 #ifdef FEAT_EVAL
5667 	    if (dark != (*p_bg == 'd')
5668 			  && get_var_value((char_u *)"g:colors_name") != NULL)
5669 	    {
5670 		/* The color scheme must have set 'background' back to another
5671 		 * value, that's not what we want here.  Disable the color
5672 		 * scheme and set the colors again. */
5673 		do_unlet((char_u *)"g:colors_name", TRUE);
5674 		free_string_option(p_bg);
5675 		p_bg = vim_strsave((char_u *)(dark ? "dark" : "light"));
5676 		check_string_option(&p_bg);
5677 		init_highlight(FALSE, FALSE);
5678 	    }
5679 #endif
5680 	}
5681 	else
5682 	    errmsg = e_invarg;
5683     }
5684 
5685     /* 'wildmode' */
5686     else if (varp == &p_wim)
5687     {
5688 	if (check_opt_wim() == FAIL)
5689 	    errmsg = e_invarg;
5690     }
5691 
5692 #ifdef FEAT_CMDL_COMPL
5693     /* 'wildoptions' */
5694     else if (varp == &p_wop)
5695     {
5696 	if (check_opt_strings(p_wop, p_wop_values, TRUE) != OK)
5697 	    errmsg = e_invarg;
5698     }
5699 #endif
5700 
5701 #ifdef FEAT_WAK
5702     /* 'winaltkeys' */
5703     else if (varp == &p_wak)
5704     {
5705 	if (*p_wak == NUL
5706 		|| check_opt_strings(p_wak, p_wak_values, FALSE) != OK)
5707 	    errmsg = e_invarg;
5708 # ifdef FEAT_MENU
5709 #  ifdef FEAT_GUI_MOTIF
5710 	else if (gui.in_use)
5711 	    gui_motif_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
5712 #  else
5713 #   ifdef FEAT_GUI_GTK
5714 	else if (gui.in_use)
5715 	    gui_gtk_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
5716 #   endif
5717 #  endif
5718 # endif
5719     }
5720 #endif
5721 
5722 #ifdef FEAT_AUTOCMD
5723     /* 'eventignore' */
5724     else if (varp == &p_ei)
5725     {
5726 	if (check_ei() == FAIL)
5727 	    errmsg = e_invarg;
5728     }
5729 #endif
5730 
5731 #ifdef FEAT_MBYTE
5732     /* 'encoding' and 'fileencoding' */
5733     else if (varp == &p_enc || gvarp == &p_fenc || varp == &p_tenc)
5734     {
5735 	if (gvarp == &p_fenc)
5736 	{
5737 	    if (!curbuf->b_p_ma && opt_flags != OPT_GLOBAL)
5738 		errmsg = e_modifiable;
5739 	    else if (vim_strchr(*varp, ',') != NULL)
5740 		/* No comma allowed in 'fileencoding'; catches confusing it
5741 		 * with 'fileencodings'. */
5742 		errmsg = e_invarg;
5743 	    else
5744 	    {
5745 # ifdef FEAT_TITLE
5746 		/* May show a "+" in the title now. */
5747 		redraw_titles();
5748 # endif
5749 		/* Add 'fileencoding' to the swap file. */
5750 		ml_setflags(curbuf);
5751 	    }
5752 	}
5753 	if (errmsg == NULL)
5754 	{
5755 	    /* canonize the value, so that STRCMP() can be used on it */
5756 	    p = enc_canonize(*varp);
5757 	    if (p != NULL)
5758 	    {
5759 		vim_free(*varp);
5760 		*varp = p;
5761 	    }
5762 	    if (varp == &p_enc)
5763 	    {
5764 		errmsg = mb_init();
5765 # ifdef FEAT_TITLE
5766 		redraw_titles();
5767 # endif
5768 	    }
5769 	}
5770 
5771 # if defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
5772 	if (errmsg == NULL && varp == &p_tenc && gui.in_use)
5773 	{
5774 	    /* GTK+ 2 uses only a single encoding, and that is UTF-8. */
5775 	    if (STRCMP(p_tenc, "utf-8") != 0)
5776 		errmsg = (char_u *)N_("E617: Cannot be changed in the GTK+ 2 GUI");
5777 	}
5778 # endif
5779 
5780 	if (errmsg == NULL)
5781 	{
5782 # ifdef FEAT_KEYMAP
5783 	    /* When 'keymap' is used and 'encoding' changes, reload the keymap
5784 	     * (with another encoding). */
5785 	    if (varp == &p_enc && *curbuf->b_p_keymap != NUL)
5786 		(void)keymap_init();
5787 # endif
5788 
5789 	    /* When 'termencoding' is not empty and 'encoding' changes or when
5790 	     * 'termencoding' changes, need to setup for keyboard input and
5791 	     * display output conversion. */
5792 	    if (((varp == &p_enc && *p_tenc != NUL) || varp == &p_tenc))
5793 	    {
5794 		convert_setup(&input_conv, p_tenc, p_enc);
5795 		convert_setup(&output_conv, p_enc, p_tenc);
5796 	    }
5797 
5798 # if defined(WIN3264) && defined(FEAT_MBYTE)
5799 	    /* $HOME may have characters in active code page. */
5800 	    if (varp == &p_enc)
5801 		init_homedir();
5802 # endif
5803 	}
5804     }
5805 #endif
5806 
5807 #if defined(FEAT_POSTSCRIPT)
5808     else if (varp == &p_penc)
5809     {
5810 	/* Canonize printencoding if VIM standard one */
5811 	p = enc_canonize(p_penc);
5812 	if (p != NULL)
5813 	{
5814 	    vim_free(p_penc);
5815 	    p_penc = p;
5816 	}
5817 	else
5818 	{
5819 	    /* Ensure lower case and '-' for '_' */
5820 	    for (s = p_penc; *s != NUL; s++)
5821 	    {
5822 		if (*s == '_')
5823 		    *s = '-';
5824 		else
5825 		    *s = TOLOWER_ASC(*s);
5826 	    }
5827 	}
5828     }
5829 #endif
5830 
5831 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
5832     else if (varp == &p_imak)
5833     {
5834 	if (gui.in_use && !im_xim_isvalid_imactivate())
5835 	    errmsg = e_invarg;
5836     }
5837 #endif
5838 
5839 #ifdef FEAT_KEYMAP
5840     else if (varp == &curbuf->b_p_keymap)
5841     {
5842 	/* load or unload key mapping tables */
5843 	errmsg = keymap_init();
5844 
5845 	if (errmsg == NULL)
5846 	{
5847 	    if (*curbuf->b_p_keymap != NUL)
5848 	    {
5849 		/* Installed a new keymap, switch on using it. */
5850 		curbuf->b_p_iminsert = B_IMODE_LMAP;
5851 		if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT)
5852 		    curbuf->b_p_imsearch = B_IMODE_LMAP;
5853 	    }
5854 	    else
5855 	    {
5856 		/* Cleared the keymap, may reset 'iminsert' and 'imsearch'. */
5857 		if (curbuf->b_p_iminsert == B_IMODE_LMAP)
5858 		    curbuf->b_p_iminsert = B_IMODE_NONE;
5859 		if (curbuf->b_p_imsearch == B_IMODE_LMAP)
5860 		    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
5861 	    }
5862 	    if ((opt_flags & OPT_LOCAL) == 0)
5863 	    {
5864 		set_iminsert_global();
5865 		set_imsearch_global();
5866 	    }
5867 # ifdef FEAT_WINDOWS
5868 	    status_redraw_curbuf();
5869 # endif
5870 	}
5871     }
5872 #endif
5873 
5874     /* 'fileformat' */
5875     else if (gvarp == &p_ff)
5876     {
5877 	if (!curbuf->b_p_ma && !(opt_flags & OPT_GLOBAL))
5878 	    errmsg = e_modifiable;
5879 	else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK)
5880 	    errmsg = e_invarg;
5881 	else
5882 	{
5883 	    /* may also change 'textmode' */
5884 	    if (get_fileformat(curbuf) == EOL_DOS)
5885 		curbuf->b_p_tx = TRUE;
5886 	    else
5887 		curbuf->b_p_tx = FALSE;
5888 #ifdef FEAT_TITLE
5889 	    redraw_titles();
5890 #endif
5891 	    /* update flag in swap file */
5892 	    ml_setflags(curbuf);
5893 	    /* Redraw needed when switching to/from "mac": a CR in the text
5894 	     * will be displayed differently. */
5895 	    if (get_fileformat(curbuf) == EOL_MAC || *oldval == 'm')
5896 		redraw_curbuf_later(NOT_VALID);
5897 	}
5898     }
5899 
5900     /* 'fileformats' */
5901     else if (varp == &p_ffs)
5902     {
5903 	if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK)
5904 	    errmsg = e_invarg;
5905 	else
5906 	{
5907 	    /* also change 'textauto' */
5908 	    if (*p_ffs == NUL)
5909 		p_ta = FALSE;
5910 	    else
5911 		p_ta = TRUE;
5912 	}
5913     }
5914 
5915 #if defined(FEAT_CRYPT) && defined(FEAT_CMDHIST)
5916     /* 'cryptkey' */
5917     else if (gvarp == &p_key)
5918     {
5919 	/* Make sure the ":set" command doesn't show the new value in the
5920 	 * history. */
5921 	remove_key_from_history();
5922     }
5923 #endif
5924 
5925     /* 'matchpairs' */
5926     else if (gvarp == &p_mps)
5927     {
5928 	/* Check for "x:y,x:y" */
5929 	for (p = *varp; *p != NUL; p += 4)
5930 	{
5931 	    if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ','))
5932 	    {
5933 		errmsg = e_invarg;
5934 		break;
5935 	    }
5936 	    if (p[3] == NUL)
5937 		break;
5938 	}
5939     }
5940 
5941 #ifdef FEAT_COMMENTS
5942     /* 'comments' */
5943     else if (gvarp == &p_com)
5944     {
5945 	for (s = *varp; *s; )
5946 	{
5947 	    while (*s && *s != ':')
5948 	    {
5949 		if (vim_strchr((char_u *)COM_ALL, *s) == NULL
5950 					     && !VIM_ISDIGIT(*s) && *s != '-')
5951 		{
5952 		    errmsg = illegal_char(errbuf, *s);
5953 		    break;
5954 		}
5955 		++s;
5956 	    }
5957 	    if (*s++ == NUL)
5958 		errmsg = (char_u *)N_("E524: Missing colon");
5959 	    else if (*s == ',' || *s == NUL)
5960 		errmsg = (char_u *)N_("E525: Zero length string");
5961 	    if (errmsg != NULL)
5962 		break;
5963 	    while (*s && *s != ',')
5964 	    {
5965 		if (*s == '\\' && s[1] != NUL)
5966 		    ++s;
5967 		++s;
5968 	    }
5969 	    s = skip_to_option_part(s);
5970 	}
5971     }
5972 #endif
5973 
5974     /* 'listchars' */
5975     else if (varp == &p_lcs)
5976     {
5977 	errmsg = set_chars_option(varp);
5978     }
5979 
5980 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
5981     /* 'fillchars' */
5982     else if (varp == &p_fcs)
5983     {
5984 	errmsg = set_chars_option(varp);
5985     }
5986 #endif
5987 
5988 #ifdef FEAT_CMDWIN
5989     /* 'cedit' */
5990     else if (varp == &p_cedit)
5991     {
5992 	errmsg = check_cedit();
5993     }
5994 #endif
5995 
5996     /* 'verbosefile' */
5997     else if (varp == &p_vfile)
5998     {
5999 	verbose_stop();
6000 	if (*p_vfile != NUL && verbose_open() == FAIL)
6001 	    errmsg = e_invarg;
6002     }
6003 
6004 #ifdef FEAT_VIMINFO
6005     /* 'viminfo' */
6006     else if (varp == &p_viminfo)
6007     {
6008 	for (s = p_viminfo; *s;)
6009 	{
6010 	    /* Check it's a valid character */
6011 	    if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL)
6012 	    {
6013 		errmsg = illegal_char(errbuf, *s);
6014 		break;
6015 	    }
6016 	    if (*s == 'n')	/* name is always last one */
6017 	    {
6018 		break;
6019 	    }
6020 	    else if (*s == 'r') /* skip until next ',' */
6021 	    {
6022 		while (*++s && *s != ',')
6023 		    ;
6024 	    }
6025 	    else if (*s == '%')
6026 	    {
6027 		/* optional number */
6028 		while (vim_isdigit(*++s))
6029 		    ;
6030 	    }
6031 	    else if (*s == '!' || *s == 'h' || *s == 'c')
6032 		++s;		/* no extra chars */
6033 	    else		/* must have a number */
6034 	    {
6035 		while (vim_isdigit(*++s))
6036 		    ;
6037 
6038 		if (!VIM_ISDIGIT(*(s - 1)))
6039 		{
6040 		    if (errbuf != NULL)
6041 		    {
6042 			sprintf((char *)errbuf,
6043 					 _("E526: Missing number after <%s>"),
6044 						    transchar_byte(*(s - 1)));
6045 			errmsg = errbuf;
6046 		    }
6047 		    else
6048 			errmsg = (char_u *)"";
6049 		    break;
6050 		}
6051 	    }
6052 	    if (*s == ',')
6053 		++s;
6054 	    else if (*s)
6055 	    {
6056 		if (errbuf != NULL)
6057 		    errmsg = (char_u *)N_("E527: Missing comma");
6058 		else
6059 		    errmsg = (char_u *)"";
6060 		break;
6061 	    }
6062 	}
6063 	if (*p_viminfo && errmsg == NULL && get_viminfo_parameter('\'') < 0)
6064 	    errmsg = (char_u *)N_("E528: Must specify a ' value");
6065     }
6066 #endif /* FEAT_VIMINFO */
6067 
6068     /* terminal options */
6069     else if (istermoption(&options[opt_idx]) && full_screen)
6070     {
6071 	/* ":set t_Co=0" and ":set t_Co=1" do ":set t_Co=" */
6072 	if (varp == &T_CCO)
6073 	{
6074 	    int colors = atoi((char *)T_CCO);
6075 
6076 	    /* Only reinitialize colors if t_Co value has really changed to
6077 	     * avoid expensive reload of colorscheme if t_Co is set to the
6078 	     * same value multiple times. */
6079 	    if (colors != t_colors)
6080 	    {
6081 		t_colors = colors;
6082 		if (t_colors <= 1)
6083 		{
6084 		    if (new_value_alloced)
6085 			vim_free(T_CCO);
6086 		    T_CCO = empty_option;
6087 		}
6088 		/* We now have a different color setup, initialize it again. */
6089 		init_highlight(TRUE, FALSE);
6090 	    }
6091 	}
6092 	ttest(FALSE);
6093 	if (varp == &T_ME)
6094 	{
6095 	    out_str(T_ME);
6096 	    redraw_later(CLEAR);
6097 #if defined(MSDOS) || (defined(WIN3264) && !defined(FEAT_GUI_W32))
6098 	    /* Since t_me has been set, this probably means that the user
6099 	     * wants to use this as default colors.  Need to reset default
6100 	     * background/foreground colors. */
6101 	    mch_set_normal_colors();
6102 #endif
6103 	}
6104     }
6105 
6106 #ifdef FEAT_LINEBREAK
6107     /* 'showbreak' */
6108     else if (varp == &p_sbr)
6109     {
6110 	for (s = p_sbr; *s; )
6111 	{
6112 	    if (ptr2cells(s) != 1)
6113 		errmsg = (char_u *)N_("E595: contains unprintable or wide character");
6114 	    mb_ptr_adv(s);
6115 	}
6116     }
6117 #endif
6118 
6119 #ifdef FEAT_GUI
6120     /* 'guifont' */
6121     else if (varp == &p_guifont)
6122     {
6123 	if (gui.in_use)
6124 	{
6125 	    p = p_guifont;
6126 # if defined(FEAT_GUI_GTK)
6127 	    /*
6128 	     * Put up a font dialog and let the user select a new value.
6129 	     * If this is cancelled go back to the old value but don't
6130 	     * give an error message.
6131 	     */
6132 	    if (STRCMP(p, "*") == 0)
6133 	    {
6134 		p = gui_mch_font_dialog(oldval);
6135 
6136 		if (new_value_alloced)
6137 		    free_string_option(p_guifont);
6138 
6139 		p_guifont = (p != NULL) ? p : vim_strsave(oldval);
6140 		new_value_alloced = TRUE;
6141 	    }
6142 # endif
6143 	    if (p != NULL && gui_init_font(p_guifont, FALSE) != OK)
6144 	    {
6145 # if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_PHOTON)
6146 		if (STRCMP(p_guifont, "*") == 0)
6147 		{
6148 		    /* Dialog was cancelled: Keep the old value without giving
6149 		     * an error message. */
6150 		    if (new_value_alloced)
6151 			free_string_option(p_guifont);
6152 		    p_guifont = vim_strsave(oldval);
6153 		    new_value_alloced = TRUE;
6154 		}
6155 		else
6156 # endif
6157 		    errmsg = (char_u *)N_("E596: Invalid font(s)");
6158 	    }
6159 	}
6160 	redraw_gui_only = TRUE;
6161     }
6162 # ifdef FEAT_XFONTSET
6163     else if (varp == &p_guifontset)
6164     {
6165 	if (STRCMP(p_guifontset, "*") == 0)
6166 	    errmsg = (char_u *)N_("E597: can't select fontset");
6167 	else if (gui.in_use && gui_init_font(p_guifontset, TRUE) != OK)
6168 	    errmsg = (char_u *)N_("E598: Invalid fontset");
6169 	redraw_gui_only = TRUE;
6170     }
6171 # endif
6172 # ifdef FEAT_MBYTE
6173     else if (varp == &p_guifontwide)
6174     {
6175 	if (STRCMP(p_guifontwide, "*") == 0)
6176 	    errmsg = (char_u *)N_("E533: can't select wide font");
6177 	else if (gui_get_wide_font() == FAIL)
6178 	    errmsg = (char_u *)N_("E534: Invalid wide font");
6179 	redraw_gui_only = TRUE;
6180     }
6181 # endif
6182 #endif
6183 
6184 #ifdef CURSOR_SHAPE
6185     /* 'guicursor' */
6186     else if (varp == &p_guicursor)
6187 	errmsg = parse_shape_opt(SHAPE_CURSOR);
6188 #endif
6189 
6190 #ifdef FEAT_MOUSESHAPE
6191     /* 'mouseshape' */
6192     else if (varp == &p_mouseshape)
6193     {
6194 	errmsg = parse_shape_opt(SHAPE_MOUSE);
6195 	update_mouseshape(-1);
6196     }
6197 #endif
6198 
6199 #ifdef FEAT_PRINTER
6200     else if (varp == &p_popt)
6201 	errmsg = parse_printoptions();
6202 # if defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)
6203     else if (varp == &p_pmfn)
6204 	errmsg = parse_printmbfont();
6205 # endif
6206 #endif
6207 
6208 #ifdef FEAT_LANGMAP
6209     /* 'langmap' */
6210     else if (varp == &p_langmap)
6211 	langmap_set();
6212 #endif
6213 
6214 #ifdef FEAT_LINEBREAK
6215     /* 'breakat' */
6216     else if (varp == &p_breakat)
6217 	fill_breakat_flags();
6218 #endif
6219 
6220 #ifdef FEAT_TITLE
6221     /* 'titlestring' and 'iconstring' */
6222     else if (varp == &p_titlestring || varp == &p_iconstring)
6223     {
6224 # ifdef FEAT_STL_OPT
6225 	int	flagval = (varp == &p_titlestring) ? STL_IN_TITLE : STL_IN_ICON;
6226 
6227 	/* NULL => statusline syntax */
6228 	if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL)
6229 	    stl_syntax |= flagval;
6230 	else
6231 	    stl_syntax &= ~flagval;
6232 # endif
6233 	did_set_title(varp == &p_iconstring);
6234 
6235     }
6236 #endif
6237 
6238 #ifdef FEAT_GUI
6239     /* 'guioptions' */
6240     else if (varp == &p_go)
6241     {
6242 	gui_init_which_components(oldval);
6243 	redraw_gui_only = TRUE;
6244     }
6245 #endif
6246 
6247 #if defined(FEAT_GUI_TABLINE)
6248     /* 'guitablabel' */
6249     else if (varp == &p_gtl)
6250     {
6251 	redraw_tabline = TRUE;
6252 	redraw_gui_only = TRUE;
6253     }
6254     /* 'guitabtooltip' */
6255     else if (varp == &p_gtt)
6256     {
6257 	redraw_gui_only = TRUE;
6258     }
6259 #endif
6260 
6261 #if defined(FEAT_MOUSE_TTY) && (defined(UNIX) || defined(VMS))
6262     /* 'ttymouse' */
6263     else if (varp == &p_ttym)
6264     {
6265 	/* Switch the mouse off before changing the escape sequences used for
6266 	 * that. */
6267 	mch_setmouse(FALSE);
6268 	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
6269 	    errmsg = e_invarg;
6270 	else
6271 	    check_mouse_termcode();
6272 	if (termcap_active)
6273 	    setmouse();		/* may switch it on again */
6274     }
6275 #endif
6276 
6277 #ifdef FEAT_VISUAL
6278     /* 'selection' */
6279     else if (varp == &p_sel)
6280     {
6281 	if (*p_sel == NUL
6282 		|| check_opt_strings(p_sel, p_sel_values, FALSE) != OK)
6283 	    errmsg = e_invarg;
6284     }
6285 
6286     /* 'selectmode' */
6287     else if (varp == &p_slm)
6288     {
6289 	if (check_opt_strings(p_slm, p_slm_values, TRUE) != OK)
6290 	    errmsg = e_invarg;
6291     }
6292 #endif
6293 
6294 #ifdef FEAT_BROWSE
6295     /* 'browsedir' */
6296     else if (varp == &p_bsdir)
6297     {
6298 	if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK
6299 		&& !mch_isdir(p_bsdir))
6300 	    errmsg = e_invarg;
6301     }
6302 #endif
6303 
6304 #ifdef FEAT_VISUAL
6305     /* 'keymodel' */
6306     else if (varp == &p_km)
6307     {
6308 	if (check_opt_strings(p_km, p_km_values, TRUE) != OK)
6309 	    errmsg = e_invarg;
6310 	else
6311 	{
6312 	    km_stopsel = (vim_strchr(p_km, 'o') != NULL);
6313 	    km_startsel = (vim_strchr(p_km, 'a') != NULL);
6314 	}
6315     }
6316 #endif
6317 
6318     /* 'mousemodel' */
6319     else if (varp == &p_mousem)
6320     {
6321 	if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK)
6322 	    errmsg = e_invarg;
6323 #if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002)
6324 	else if (*p_mousem != *oldval)
6325 	    /* Changed from "extend" to "popup" or "popup_setpos" or vv: need
6326 	     * to create or delete the popup menus. */
6327 	    gui_motif_update_mousemodel(root_menu);
6328 #endif
6329     }
6330 
6331     /* 'switchbuf' */
6332     else if (varp == &p_swb)
6333     {
6334 	if (opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE) != OK)
6335 	    errmsg = e_invarg;
6336     }
6337 
6338     /* 'debug' */
6339     else if (varp == &p_debug)
6340     {
6341 	if (check_opt_strings(p_debug, p_debug_values, TRUE) != OK)
6342 	    errmsg = e_invarg;
6343     }
6344 
6345     /* 'display' */
6346     else if (varp == &p_dy)
6347     {
6348 	if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK)
6349 	    errmsg = e_invarg;
6350 	else
6351 	    (void)init_chartab();
6352 
6353     }
6354 
6355 #ifdef FEAT_VERTSPLIT
6356     /* 'eadirection' */
6357     else if (varp == &p_ead)
6358     {
6359 	if (check_opt_strings(p_ead, p_ead_values, FALSE) != OK)
6360 	    errmsg = e_invarg;
6361     }
6362 #endif
6363 
6364 #ifdef FEAT_CLIPBOARD
6365     /* 'clipboard' */
6366     else if (varp == &p_cb)
6367 	errmsg = check_clipboard_option();
6368 #endif
6369 
6370 #ifdef FEAT_SPELL
6371     /* When 'spelllang' or 'spellfile' is set and there is a window for this
6372      * buffer in which 'spell' is set load the wordlists. */
6373     else if (varp == &(curbuf->b_p_spl) || varp == &(curbuf->b_p_spf))
6374     {
6375 	win_T	    *wp;
6376 	int	    l;
6377 
6378 	if (varp == &(curbuf->b_p_spf))
6379 	{
6380 	    l = (int)STRLEN(curbuf->b_p_spf);
6381 	    if (l > 0 && (l < 4 || STRCMP(curbuf->b_p_spf + l - 4,
6382 								".add") != 0))
6383 		errmsg = e_invarg;
6384 	}
6385 
6386 	if (errmsg == NULL)
6387 	{
6388 	    FOR_ALL_WINDOWS(wp)
6389 		if (wp->w_buffer == curbuf && wp->w_p_spell)
6390 		{
6391 		    errmsg = did_set_spelllang(curbuf);
6392 # ifdef FEAT_WINDOWS
6393 		    break;
6394 # endif
6395 		}
6396 	}
6397     }
6398     /* When 'spellcapcheck' is set compile the regexp program. */
6399     else if (varp == &(curbuf->b_p_spc))
6400     {
6401 	errmsg = compile_cap_prog(curbuf);
6402     }
6403     /* 'spellsuggest' */
6404     else if (varp == &p_sps)
6405     {
6406 	if (spell_check_sps() != OK)
6407 	    errmsg = e_invarg;
6408     }
6409     /* 'mkspellmem' */
6410     else if (varp == &p_msm)
6411     {
6412 	if (spell_check_msm() != OK)
6413 	    errmsg = e_invarg;
6414     }
6415 #endif
6416 
6417 #ifdef FEAT_QUICKFIX
6418     /* When 'bufhidden' is set, check for valid value. */
6419     else if (gvarp == &p_bh)
6420     {
6421 	if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE) != OK)
6422 	    errmsg = e_invarg;
6423     }
6424 
6425     /* When 'buftype' is set, check for valid value. */
6426     else if (gvarp == &p_bt)
6427     {
6428 	if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK)
6429 	    errmsg = e_invarg;
6430 	else
6431 	{
6432 # ifdef FEAT_WINDOWS
6433 	    if (curwin->w_status_height)
6434 	    {
6435 		curwin->w_redr_status = TRUE;
6436 		redraw_later(VALID);
6437 	    }
6438 # endif
6439 	    curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
6440 # ifdef FEAT_TITLE
6441 	    redraw_titles();
6442 # endif
6443 	}
6444     }
6445 #endif
6446 
6447 #ifdef FEAT_STL_OPT
6448     /* 'statusline' or 'rulerformat' */
6449     else if (gvarp == &p_stl || varp == &p_ruf)
6450     {
6451 	int wid;
6452 
6453 	if (varp == &p_ruf)	/* reset ru_wid first */
6454 	    ru_wid = 0;
6455 	s = *varp;
6456 	if (varp == &p_ruf && *s == '%')
6457 	{
6458 	    /* set ru_wid if 'ruf' starts with "%99(" */
6459 	    if (*++s == '-')	/* ignore a '-' */
6460 		s++;
6461 	    wid = getdigits(&s);
6462 	    if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL)
6463 		ru_wid = wid;
6464 	    else
6465 		errmsg = check_stl_option(p_ruf);
6466 	}
6467 	/* check 'statusline' only if it doesn't start with "%!" */
6468 	else if (varp == &p_ruf || s[0] != '%' || s[1] != '!')
6469 	    errmsg = check_stl_option(s);
6470 	if (varp == &p_ruf && errmsg == NULL)
6471 	    comp_col();
6472     }
6473 #endif
6474 
6475 #ifdef FEAT_INS_EXPAND
6476     /* check if it is a valid value for 'complete' -- Acevedo */
6477     else if (gvarp == &p_cpt)
6478     {
6479 	for (s = *varp; *s;)
6480 	{
6481 	    while(*s == ',' || *s == ' ')
6482 		s++;
6483 	    if (!*s)
6484 		break;
6485 	    if (vim_strchr((char_u *)".wbuksid]tU", *s) == NULL)
6486 	    {
6487 		errmsg = illegal_char(errbuf, *s);
6488 		break;
6489 	    }
6490 	    if (*++s != NUL && *s != ',' && *s != ' ')
6491 	    {
6492 		if (s[-1] == 'k' || s[-1] == 's')
6493 		{
6494 		    /* skip optional filename after 'k' and 's' */
6495 		    while (*s && *s != ',' && *s != ' ')
6496 		    {
6497 			if (*s == '\\')
6498 			    ++s;
6499 			++s;
6500 		    }
6501 		}
6502 		else
6503 		{
6504 		    if (errbuf != NULL)
6505 		    {
6506 			sprintf((char *)errbuf,
6507 				     _("E535: Illegal character after <%c>"),
6508 				     *--s);
6509 			errmsg = errbuf;
6510 		    }
6511 		    else
6512 			errmsg = (char_u *)"";
6513 		    break;
6514 		}
6515 	    }
6516 	}
6517     }
6518 
6519     /* 'completeopt' */
6520     else if (varp == &p_cot)
6521     {
6522 	if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK)
6523 	    errmsg = e_invarg;
6524     }
6525 #endif /* FEAT_INS_EXPAND */
6526 
6527 
6528 #if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
6529     else if (varp == &p_toolbar)
6530     {
6531 	if (opt_strings_flags(p_toolbar, p_toolbar_values,
6532 			      &toolbar_flags, TRUE) != OK)
6533 	    errmsg = e_invarg;
6534 	else
6535 	{
6536 	    out_flush();
6537 	    gui_mch_show_toolbar((toolbar_flags &
6538 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
6539 	}
6540     }
6541 #endif
6542 
6543 #if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
6544     /* 'toolbariconsize': GTK+ 2 only */
6545     else if (varp == &p_tbis)
6546     {
6547 	if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK)
6548 	    errmsg = e_invarg;
6549 	else
6550 	{
6551 	    out_flush();
6552 	    gui_mch_show_toolbar((toolbar_flags &
6553 				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
6554 	}
6555     }
6556 #endif
6557 
6558     /* 'pastetoggle': translate key codes like in a mapping */
6559     else if (varp == &p_pt)
6560     {
6561 	if (*p_pt)
6562 	{
6563 	    (void)replace_termcodes(p_pt, &p, TRUE, TRUE, FALSE);
6564 	    if (p != NULL)
6565 	    {
6566 		if (new_value_alloced)
6567 		    free_string_option(p_pt);
6568 		p_pt = p;
6569 		new_value_alloced = TRUE;
6570 	    }
6571 	}
6572     }
6573 
6574     /* 'backspace' */
6575     else if (varp == &p_bs)
6576     {
6577 	if (VIM_ISDIGIT(*p_bs))
6578 	{
6579 	    if (*p_bs >'2' || p_bs[1] != NUL)
6580 		errmsg = e_invarg;
6581 	}
6582 	else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK)
6583 	    errmsg = e_invarg;
6584     }
6585 
6586 #ifdef FEAT_MBYTE
6587     /* 'casemap' */
6588     else if (varp == &p_cmp)
6589     {
6590 	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
6591 	    errmsg = e_invarg;
6592     }
6593 #endif
6594 
6595 #ifdef FEAT_DIFF
6596     /* 'diffopt' */
6597     else if (varp == &p_dip)
6598     {
6599 	if (diffopt_changed() == FAIL)
6600 	    errmsg = e_invarg;
6601     }
6602 #endif
6603 
6604 #ifdef FEAT_FOLDING
6605     /* 'foldmethod' */
6606     else if (gvarp == &curwin->w_allbuf_opt.wo_fdm)
6607     {
6608 	if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK
6609 		|| *curwin->w_p_fdm == NUL)
6610 	    errmsg = e_invarg;
6611 	else
6612 	{
6613 	    foldUpdateAll(curwin);
6614 	    if (foldmethodIsDiff(curwin))
6615 		newFoldLevel();
6616 	}
6617     }
6618 # ifdef FEAT_EVAL
6619     /* 'foldexpr' */
6620     else if (varp == &curwin->w_p_fde)
6621     {
6622 	if (foldmethodIsExpr(curwin))
6623 	    foldUpdateAll(curwin);
6624     }
6625 # endif
6626     /* 'foldmarker' */
6627     else if (gvarp == &curwin->w_allbuf_opt.wo_fmr)
6628     {
6629 	p = vim_strchr(*varp, ',');
6630 	if (p == NULL)
6631 	    errmsg = (char_u *)N_("E536: comma required");
6632 	else if (p == *varp || p[1] == NUL)
6633 	    errmsg = e_invarg;
6634 	else if (foldmethodIsMarker(curwin))
6635 	    foldUpdateAll(curwin);
6636     }
6637     /* 'commentstring' */
6638     else if (gvarp == &p_cms)
6639     {
6640 	if (**varp != NUL && strstr((char *)*varp, "%s") == NULL)
6641 	    errmsg = (char_u *)N_("E537: 'commentstring' must be empty or contain %s");
6642     }
6643     /* 'foldopen' */
6644     else if (varp == &p_fdo)
6645     {
6646 	if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE) != OK)
6647 	    errmsg = e_invarg;
6648     }
6649     /* 'foldclose' */
6650     else if (varp == &p_fcl)
6651     {
6652 	if (check_opt_strings(p_fcl, p_fcl_values, TRUE) != OK)
6653 	    errmsg = e_invarg;
6654     }
6655     /* 'foldignore' */
6656     else if (gvarp == &curwin->w_allbuf_opt.wo_fdi)
6657     {
6658 	if (foldmethodIsIndent(curwin))
6659 	    foldUpdateAll(curwin);
6660     }
6661 #endif
6662 
6663 #ifdef FEAT_VIRTUALEDIT
6664     /* 'virtualedit' */
6665     else if (varp == &p_ve)
6666     {
6667 	if (opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE) != OK)
6668 	    errmsg = e_invarg;
6669 	else if (STRCMP(p_ve, oldval) != 0)
6670 	{
6671 	    /* Recompute cursor position in case the new 've' setting
6672 	     * changes something. */
6673 	    validate_virtcol();
6674 	    coladvance(curwin->w_virtcol);
6675 	}
6676     }
6677 #endif
6678 
6679 #if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
6680     else if (varp == &p_csqf)
6681     {
6682 	if (p_csqf != NULL)
6683 	{
6684 	    p = p_csqf;
6685 	    while (*p != NUL)
6686 	    {
6687 		if (vim_strchr((char_u *)CSQF_CMDS, *p) == NULL
6688 			|| p[1] == NUL
6689 			|| vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL
6690 			|| (p[2] != NUL && p[2] != ','))
6691 		{
6692 		    errmsg = e_invarg;
6693 		    break;
6694 		}
6695 		else if (p[2] == NUL)
6696 		    break;
6697 		else
6698 		    p += 3;
6699 	    }
6700 	}
6701     }
6702 #endif
6703 
6704     /* Options that are a list of flags. */
6705     else
6706     {
6707 	p = NULL;
6708 	if (varp == &p_ww)
6709 	    p = (char_u *)WW_ALL;
6710 	if (varp == &p_shm)
6711 	    p = (char_u *)SHM_ALL;
6712 	else if (varp == &(p_cpo))
6713 	    p = (char_u *)CPO_ALL;
6714 	else if (varp == &(curbuf->b_p_fo))
6715 	    p = (char_u *)FO_ALL;
6716 	else if (varp == &p_mouse)
6717 	{
6718 #ifdef FEAT_MOUSE
6719 	    p = (char_u *)MOUSE_ALL;
6720 #else
6721 	    if (*p_mouse != NUL)
6722 		errmsg = (char_u *)N_("E538: No mouse support");
6723 #endif
6724 	}
6725 #if defined(FEAT_GUI)
6726 	else if (varp == &p_go)
6727 	    p = (char_u *)GO_ALL;
6728 #endif
6729 	if (p != NULL)
6730 	{
6731 	    for (s = *varp; *s; ++s)
6732 		if (vim_strchr(p, *s) == NULL)
6733 		{
6734 		    errmsg = illegal_char(errbuf, *s);
6735 		    break;
6736 		}
6737 	}
6738     }
6739 
6740     /*
6741      * If error detected, restore the previous value.
6742      */
6743     if (errmsg != NULL)
6744     {
6745 	if (new_value_alloced)
6746 	    free_string_option(*varp);
6747 	*varp = oldval;
6748 	/*
6749 	 * When resetting some values, need to act on it.
6750 	 */
6751 	if (did_chartab)
6752 	    (void)init_chartab();
6753 	if (varp == &p_hl)
6754 	    (void)highlight_changed();
6755     }
6756     else
6757     {
6758 #ifdef FEAT_EVAL
6759 	/* Remember where the option was set. */
6760 	set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
6761 #endif
6762 	/*
6763 	 * Free string options that are in allocated memory.
6764 	 * Use "free_oldval", because recursiveness may change the flags under
6765 	 * our fingers (esp. init_highlight()).
6766 	 */
6767 	if (free_oldval)
6768 	    free_string_option(oldval);
6769 	if (new_value_alloced)
6770 	    options[opt_idx].flags |= P_ALLOCED;
6771 	else
6772 	    options[opt_idx].flags &= ~P_ALLOCED;
6773 
6774 	if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
6775 		&& ((int)options[opt_idx].indir & PV_BOTH))
6776 	{
6777 	    /* global option with local value set to use global value; free
6778 	     * the local value and make it empty */
6779 	    p = get_varp_scope(&(options[opt_idx]), OPT_LOCAL);
6780 	    free_string_option(*(char_u **)p);
6781 	    *(char_u **)p = empty_option;
6782 	}
6783 
6784 	/* May set global value for local option. */
6785 	else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL)
6786 	    set_string_option_global(opt_idx, varp);
6787 
6788 #ifdef FEAT_AUTOCMD
6789 	/*
6790 	 * Trigger the autocommand only after setting the flags.
6791 	 */
6792 # ifdef FEAT_SYN_HL
6793 	/* When 'syntax' is set, load the syntax of that name */
6794 	if (varp == &(curbuf->b_p_syn))
6795 	{
6796 	    apply_autocmds(EVENT_SYNTAX, curbuf->b_p_syn,
6797 					       curbuf->b_fname, TRUE, curbuf);
6798 	}
6799 # endif
6800 	else if (varp == &(curbuf->b_p_ft))
6801 	{
6802 	    /* 'filetype' is set, trigger the FileType autocommand */
6803 	    did_filetype = TRUE;
6804 	    apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft,
6805 					       curbuf->b_fname, TRUE, curbuf);
6806 	}
6807 #endif
6808 #ifdef FEAT_SPELL
6809 	if (varp == &(curbuf->b_p_spl))
6810 	{
6811 	    char_u	fname[200];
6812 
6813 	    /*
6814 	     * Source the spell/LANG.vim in 'runtimepath'.
6815 	     * They could set 'spellcapcheck' depending on the language.
6816 	     * Use the first name in 'spelllang' up to '_region' or
6817 	     * '.encoding'.
6818 	     */
6819 	    for (p = curbuf->b_p_spl; *p != NUL; ++p)
6820 		if (vim_strchr((char_u *)"_.,", *p) != NULL)
6821 		    break;
6822 	    vim_snprintf((char *)fname, 200, "spell/%.*s.vim",
6823 				 (int)(p - curbuf->b_p_spl), curbuf->b_p_spl);
6824 	    source_runtime(fname, TRUE);
6825 	}
6826 #endif
6827     }
6828 
6829 #ifdef FEAT_MOUSE
6830     if (varp == &p_mouse)
6831     {
6832 # ifdef FEAT_MOUSE_TTY
6833 	if (*p_mouse == NUL)
6834 	    mch_setmouse(FALSE);    /* switch mouse off */
6835 	else
6836 # endif
6837 	    setmouse();		    /* in case 'mouse' changed */
6838     }
6839 #endif
6840 
6841     if (curwin->w_curswant != MAXCOL)
6842 	curwin->w_set_curswant = TRUE;  /* in case 'showbreak' changed */
6843 #ifdef FEAT_GUI
6844     /* check redraw when it's not a GUI option or the GUI is active. */
6845     if (!redraw_gui_only || gui.in_use)
6846 #endif
6847 	check_redraw(options[opt_idx].flags);
6848 
6849     return errmsg;
6850 }
6851 
6852 /*
6853  * Handle setting 'listchars' or 'fillchars'.
6854  * Returns error message, NULL if it's OK.
6855  */
6856     static char_u *
6857 set_chars_option(varp)
6858     char_u	**varp;
6859 {
6860     int		round, i, len, entries;
6861     char_u	*p, *s;
6862     int		c1, c2 = 0;
6863     struct charstab
6864     {
6865 	int	*cp;
6866 	char	*name;
6867     };
6868 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6869     static struct charstab filltab[] =
6870     {
6871 	{&fill_stl,	"stl"},
6872 	{&fill_stlnc,	"stlnc"},
6873 	{&fill_vert,	"vert"},
6874 	{&fill_fold,	"fold"},
6875 	{&fill_diff,	"diff"},
6876     };
6877 #endif
6878     static struct charstab lcstab[] =
6879     {
6880 	{&lcs_eol,	"eol"},
6881 	{&lcs_ext,	"extends"},
6882 	{&lcs_nbsp,	"nbsp"},
6883 	{&lcs_prec,	"precedes"},
6884 	{&lcs_tab2,	"tab"},
6885 	{&lcs_trail,	"trail"},
6886     };
6887     struct charstab *tab;
6888 
6889 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6890     if (varp == &p_lcs)
6891 #endif
6892     {
6893 	tab = lcstab;
6894 	entries = sizeof(lcstab) / sizeof(struct charstab);
6895     }
6896 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6897     else
6898     {
6899 	tab = filltab;
6900 	entries = sizeof(filltab) / sizeof(struct charstab);
6901     }
6902 #endif
6903 
6904     /* first round: check for valid value, second round: assign values */
6905     for (round = 0; round <= 1; ++round)
6906     {
6907 	if (round)
6908 	{
6909 	    /* After checking that the value is valid: set defaults: space for
6910 	     * 'fillchars', NUL for 'listchars' */
6911 	    for (i = 0; i < entries; ++i)
6912 		*(tab[i].cp) = (varp == &p_lcs ? NUL : ' ');
6913 	    if (varp == &p_lcs)
6914 		lcs_tab1 = NUL;
6915 #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
6916 	    else
6917 		fill_diff = '-';
6918 #endif
6919 	}
6920 	p = *varp;
6921 	while (*p)
6922 	{
6923 	    for (i = 0; i < entries; ++i)
6924 	    {
6925 		len = (int)STRLEN(tab[i].name);
6926 		if (STRNCMP(p, tab[i].name, len) == 0
6927 			&& p[len] == ':'
6928 			&& p[len + 1] != NUL)
6929 		{
6930 		    s = p + len + 1;
6931 #ifdef FEAT_MBYTE
6932 		    c1 = mb_ptr2char_adv(&s);
6933 		    if (mb_char2cells(c1) > 1)
6934 			continue;
6935 #else
6936 		    c1 = *s++;
6937 #endif
6938 		    if (tab[i].cp == &lcs_tab2)
6939 		    {
6940 			if (*s == NUL)
6941 			    continue;
6942 #ifdef FEAT_MBYTE
6943 			c2 = mb_ptr2char_adv(&s);
6944 			if (mb_char2cells(c2) > 1)
6945 			    continue;
6946 #else
6947 			c2 = *s++;
6948 #endif
6949 		    }
6950 		    if (*s == ',' || *s == NUL)
6951 		    {
6952 			if (round)
6953 			{
6954 			    if (tab[i].cp == &lcs_tab2)
6955 			    {
6956 				lcs_tab1 = c1;
6957 				lcs_tab2 = c2;
6958 			    }
6959 			    else
6960 				*(tab[i].cp) = c1;
6961 
6962 			}
6963 			p = s;
6964 			break;
6965 		    }
6966 		}
6967 	    }
6968 
6969 	    if (i == entries)
6970 		return e_invarg;
6971 	    if (*p == ',')
6972 		++p;
6973 	}
6974     }
6975 
6976     return NULL;	/* no error */
6977 }
6978 
6979 #ifdef FEAT_STL_OPT
6980 /*
6981  * Check validity of options with the 'statusline' format.
6982  * Return error message or NULL.
6983  */
6984     char_u *
6985 check_stl_option(s)
6986     char_u	*s;
6987 {
6988     int		itemcnt = 0;
6989     int		groupdepth = 0;
6990     static char_u   errbuf[80];
6991 
6992     while (*s && itemcnt < STL_MAX_ITEM)
6993     {
6994 	/* Check for valid keys after % sequences */
6995 	while (*s && *s != '%')
6996 	    s++;
6997 	if (!*s)
6998 	    break;
6999 	s++;
7000 	if (*s != '%' && *s != ')')
7001 	    ++itemcnt;
7002 	if (*s == '%' || *s == STL_TRUNCMARK || *s == STL_MIDDLEMARK)
7003 	{
7004 	    s++;
7005 	    continue;
7006 	}
7007 	if (*s == ')')
7008 	{
7009 	    s++;
7010 	    if (--groupdepth < 0)
7011 		break;
7012 	    continue;
7013 	}
7014 	if (*s == '-')
7015 	    s++;
7016 	while (VIM_ISDIGIT(*s))
7017 	    s++;
7018 	if (*s == STL_USER_HL)
7019 	    continue;
7020 	if (*s == '.')
7021 	{
7022 	    s++;
7023 	    while (*s && VIM_ISDIGIT(*s))
7024 		s++;
7025 	}
7026 	if (*s == '(')
7027 	{
7028 	    groupdepth++;
7029 	    continue;
7030 	}
7031 	if (vim_strchr(STL_ALL, *s) == NULL)
7032 	{
7033 	    return illegal_char(errbuf, *s);
7034 	}
7035 	if (*s == '{')
7036 	{
7037 	    s++;
7038 	    while (*s != '}' && *s)
7039 		s++;
7040 	    if (*s != '}')
7041 		return (char_u *)N_("E540: Unclosed expression sequence");
7042 	}
7043     }
7044     if (itemcnt >= STL_MAX_ITEM)
7045 	return (char_u *)N_("E541: too many items");
7046     if (groupdepth != 0)
7047 	return (char_u *)N_("E542: unbalanced groups");
7048     return NULL;
7049 }
7050 #endif
7051 
7052 #ifdef FEAT_CLIPBOARD
7053 /*
7054  * Extract the items in the 'clipboard' option and set global values.
7055  */
7056     static char_u *
7057 check_clipboard_option()
7058 {
7059     int		new_unnamed = FALSE;
7060     int		new_autoselect = FALSE;
7061     int		new_autoselectml = FALSE;
7062     int		new_html = FALSE;
7063     regprog_T	*new_exclude_prog = NULL;
7064     char_u	*errmsg = NULL;
7065     char_u	*p;
7066 
7067     for (p = p_cb; *p != NUL; )
7068     {
7069 	if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
7070 	{
7071 	    new_unnamed = TRUE;
7072 	    p += 7;
7073 	}
7074 	else if (STRNCMP(p, "autoselect", 10) == 0
7075 					&& (p[10] == ',' || p[10] == NUL))
7076 	{
7077 	    new_autoselect = TRUE;
7078 	    p += 10;
7079 	}
7080 	else if (STRNCMP(p, "autoselectml", 12) == 0
7081 					&& (p[12] == ',' || p[12] == NUL))
7082 	{
7083 	    new_autoselectml = TRUE;
7084 	    p += 12;
7085 	}
7086 	else if (STRNCMP(p, "html", 4) == 0 && (p[4] == ',' || p[4] == NUL))
7087 	{
7088 	    new_html = TRUE;
7089 	    p += 4;
7090 	}
7091 	else if (STRNCMP(p, "exclude:", 8) == 0 && new_exclude_prog == NULL)
7092 	{
7093 	    p += 8;
7094 	    new_exclude_prog = vim_regcomp(p, RE_MAGIC);
7095 	    if (new_exclude_prog == NULL)
7096 		errmsg = e_invarg;
7097 	    break;
7098 	}
7099 	else
7100 	{
7101 	    errmsg = e_invarg;
7102 	    break;
7103 	}
7104 	if (*p == ',')
7105 	    ++p;
7106     }
7107     if (errmsg == NULL)
7108     {
7109 	clip_unnamed = new_unnamed;
7110 	clip_autoselect = new_autoselect;
7111 	clip_autoselectml = new_autoselectml;
7112 	clip_html = new_html;
7113 	vim_free(clip_exclude_prog);
7114 	clip_exclude_prog = new_exclude_prog;
7115     }
7116     else
7117 	vim_free(new_exclude_prog);
7118 
7119     return errmsg;
7120 }
7121 #endif
7122 
7123 #ifdef FEAT_SPELL
7124 /*
7125  * Set curbuf->b_cap_prog to the regexp program for 'spellcapcheck'.
7126  * Return error message when failed, NULL when OK.
7127  */
7128     static char_u *
7129 compile_cap_prog(buf)
7130     buf_T	*buf;
7131 {
7132     regprog_T   *rp = buf->b_cap_prog;
7133     char_u	*re;
7134 
7135     if (*buf->b_p_spc == NUL)
7136 	buf->b_cap_prog = NULL;
7137     else
7138     {
7139 	/* Prepend a ^ so that we only match at one column */
7140 	re = concat_str((char_u *)"^", buf->b_p_spc);
7141 	if (re != NULL)
7142 	{
7143 	    buf->b_cap_prog = vim_regcomp(re, RE_MAGIC);
7144 	    if (buf->b_cap_prog == NULL)
7145 	    {
7146 		buf->b_cap_prog = rp; /* restore the previous program */
7147 		return e_invarg;
7148 	    }
7149 	    vim_free(re);
7150 	}
7151     }
7152 
7153     vim_free(rp);
7154     return NULL;
7155 }
7156 #endif
7157 
7158 #if defined(FEAT_EVAL) || defined(PROTO)
7159 /*
7160  * Set the scriptID for an option, taking care of setting the buffer- or
7161  * window-local value.
7162  */
7163     static void
7164 set_option_scriptID_idx(opt_idx, opt_flags, id)
7165     int	    opt_idx;
7166     int	    opt_flags;
7167     int	    id;
7168 {
7169     int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
7170     int		indir = (int)options[opt_idx].indir;
7171 
7172     /* Remember where the option was set.  For local options need to do that
7173      * in the buffer or window structure. */
7174     if (both || (opt_flags & OPT_GLOBAL) || (indir & (PV_BUF|PV_WIN)) == 0)
7175 	options[opt_idx].scriptID = id;
7176     if (both || (opt_flags & OPT_LOCAL))
7177     {
7178 	if (indir & PV_BUF)
7179 	    curbuf->b_p_scriptID[indir & PV_MASK] = id;
7180 	else if (indir & PV_WIN)
7181 	    curwin->w_p_scriptID[indir & PV_MASK] = id;
7182     }
7183 }
7184 #endif
7185 
7186 /*
7187  * Set the value of a boolean option, and take care of side effects.
7188  * Returns NULL for success, or an error message for an error.
7189  */
7190     static char_u *
7191 set_bool_option(opt_idx, varp, value, opt_flags)
7192     int		opt_idx;		/* index in options[] table */
7193     char_u	*varp;			/* pointer to the option variable */
7194     int		value;			/* new value */
7195     int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
7196 {
7197     int		old_value = *(int *)varp;
7198 
7199     /* Disallow changing some options from secure mode */
7200     if ((secure
7201 #ifdef HAVE_SANDBOX
7202 		|| sandbox != 0
7203 #endif
7204 		) && (options[opt_idx].flags & P_SECURE))
7205 	return e_secure;
7206 
7207     *(int *)varp = value;	    /* set the new value */
7208 #ifdef FEAT_EVAL
7209     /* Remember where the option was set. */
7210     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7211 #endif
7212 
7213 #ifdef FEAT_GUI
7214     need_mouse_correct = TRUE;
7215 #endif
7216 
7217     /* May set global value for local option. */
7218     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
7219 	*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = value;
7220 
7221     /*
7222      * Handle side effects of changing a bool option.
7223      */
7224 
7225     /* 'compatible' */
7226     if ((int *)varp == &p_cp)
7227     {
7228 	compatible_set();
7229     }
7230 
7231     /* 'list', 'number' */
7232     else if ((int *)varp == &curwin->w_p_list
7233 	  || (int *)varp == &curwin->w_p_nu)
7234     {
7235 	if (curwin->w_curswant != MAXCOL)
7236 	    curwin->w_set_curswant = TRUE;
7237     }
7238 
7239     else if ((int *)varp == &curbuf->b_p_ro)
7240     {
7241 	/* when 'readonly' is reset globally, also reset readonlymode */
7242 	if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0)
7243 	    readonlymode = FALSE;
7244 
7245 	/* when 'readonly' is set may give W10 again */
7246 	if (curbuf->b_p_ro)
7247 	    curbuf->b_did_warn = FALSE;
7248 
7249 #ifdef FEAT_TITLE
7250 	redraw_titles();
7251 #endif
7252     }
7253 
7254 #ifdef FEAT_TITLE
7255     /* when 'modifiable' is changed, redraw the window title */
7256     else if ((int *)varp == &curbuf->b_p_ma)
7257     {
7258 	redraw_titles();
7259     }
7260     /* when 'endofline' is changed, redraw the window title */
7261     else if ((int *)varp == &curbuf->b_p_eol)
7262     {
7263 	redraw_titles();
7264     }
7265 # ifdef FEAT_MBYTE
7266     /* when 'bomb' is changed, redraw the window title and tab page text */
7267     else if ((int *)varp == &curbuf->b_p_bomb)
7268     {
7269 	redraw_titles();
7270     }
7271 # endif
7272 #endif
7273 
7274     /* when 'bin' is set also set some other options */
7275     else if ((int *)varp == &curbuf->b_p_bin)
7276     {
7277 	set_options_bin(old_value, curbuf->b_p_bin, opt_flags);
7278 #ifdef FEAT_TITLE
7279 	redraw_titles();
7280 #endif
7281     }
7282 
7283 #ifdef FEAT_AUTOCMD
7284     /* when 'buflisted' changes, trigger autocommands */
7285     else if ((int *)varp == &curbuf->b_p_bl && old_value != curbuf->b_p_bl)
7286     {
7287 	apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE,
7288 						    NULL, NULL, TRUE, curbuf);
7289     }
7290 #endif
7291 
7292     /* when 'swf' is set, create swapfile, when reset remove swapfile */
7293     else if ((int *)varp == &curbuf->b_p_swf)
7294     {
7295 	if (curbuf->b_p_swf && p_uc)
7296 	    ml_open_file(curbuf);		/* create the swap file */
7297 	else
7298 	    /* no need to reset curbuf->b_may_swap, ml_open_file() will check
7299 	     * buf->b_p_swf */
7300 	    mf_close_file(curbuf, TRUE);	/* remove the swap file */
7301     }
7302 
7303     /* when 'terse' is set change 'shortmess' */
7304     else if ((int *)varp == &p_terse)
7305     {
7306 	char_u	*p;
7307 
7308 	p = vim_strchr(p_shm, SHM_SEARCH);
7309 
7310 	/* insert 's' in p_shm */
7311 	if (p_terse && p == NULL)
7312 	{
7313 	    STRCPY(IObuff, p_shm);
7314 	    STRCAT(IObuff, "s");
7315 	    set_string_option_direct((char_u *)"shm", -1, IObuff, OPT_FREE, 0);
7316 	}
7317 	/* remove 's' from p_shm */
7318 	else if (!p_terse && p != NULL)
7319 	    STRMOVE(p, p + 1);
7320     }
7321 
7322     /* when 'paste' is set or reset also change other options */
7323     else if ((int *)varp == &p_paste)
7324     {
7325 	paste_option_changed();
7326     }
7327 
7328     /* when 'insertmode' is set from an autocommand need to do work here */
7329     else if ((int *)varp == &p_im)
7330     {
7331 	if (p_im)
7332 	{
7333 	    if ((State & INSERT) == 0)
7334 		need_start_insertmode = TRUE;
7335 	    stop_insert_mode = FALSE;
7336 	}
7337 	else
7338 	{
7339 	    need_start_insertmode = FALSE;
7340 	    stop_insert_mode = TRUE;
7341 	    if (restart_edit != 0 && mode_displayed)
7342 		clear_cmdline = TRUE;	/* remove "(insert)" */
7343 	    restart_edit = 0;
7344 	}
7345     }
7346 
7347     /* when 'ignorecase' is set or reset and 'hlsearch' is set, redraw */
7348     else if ((int *)varp == &p_ic && p_hls)
7349     {
7350 	redraw_all_later(SOME_VALID);
7351     }
7352 
7353 #ifdef FEAT_SEARCH_EXTRA
7354     /* when 'hlsearch' is set or reset: reset no_hlsearch */
7355     else if ((int *)varp == &p_hls)
7356     {
7357 	no_hlsearch = FALSE;
7358     }
7359 #endif
7360 
7361 #ifdef FEAT_SCROLLBIND
7362     /* when 'scrollbind' is set: snapshot the current position to avoid a jump
7363      * at the end of normal_cmd() */
7364     else if ((int *)varp == &curwin->w_p_scb)
7365     {
7366 	if (curwin->w_p_scb)
7367 	    do_check_scrollbind(FALSE);
7368     }
7369 #endif
7370 
7371 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
7372     /* There can be only one window with 'previewwindow' set. */
7373     else if ((int *)varp == &curwin->w_p_pvw)
7374     {
7375 	if (curwin->w_p_pvw)
7376 	{
7377 	    win_T	*win;
7378 
7379 	    for (win = firstwin; win != NULL; win = win->w_next)
7380 		if (win->w_p_pvw && win != curwin)
7381 		{
7382 		    curwin->w_p_pvw = FALSE;
7383 		    return (char_u *)N_("E590: A preview window already exists");
7384 		}
7385 	}
7386     }
7387 #endif
7388 
7389     /* when 'textmode' is set or reset also change 'fileformat' */
7390     else if ((int *)varp == &curbuf->b_p_tx)
7391     {
7392 	set_fileformat(curbuf->b_p_tx ? EOL_DOS : EOL_UNIX, opt_flags);
7393     }
7394 
7395     /* when 'textauto' is set or reset also change 'fileformats' */
7396     else if ((int *)varp == &p_ta)
7397 	set_string_option_direct((char_u *)"ffs", -1,
7398 				 p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"",
7399 						     OPT_FREE | opt_flags, 0);
7400 
7401     /*
7402      * When 'lisp' option changes include/exclude '-' in
7403      * keyword characters.
7404      */
7405 #ifdef FEAT_LISP
7406     else if (varp == (char_u *)&(curbuf->b_p_lisp))
7407     {
7408 	(void)buf_init_chartab(curbuf, FALSE);	    /* ignore errors */
7409     }
7410 #endif
7411 
7412 #ifdef FEAT_TITLE
7413     /* when 'title' changed, may need to change the title; same for 'icon' */
7414     else if ((int *)varp == &p_title)
7415     {
7416 	did_set_title(FALSE);
7417     }
7418 
7419     else if ((int *)varp == &p_icon)
7420     {
7421 	did_set_title(TRUE);
7422     }
7423 #endif
7424 
7425     else if ((int *)varp == &curbuf->b_changed)
7426     {
7427 	if (!value)
7428 	    save_file_ff(curbuf);	/* Buffer is unchanged */
7429 #ifdef FEAT_TITLE
7430 	redraw_titles();
7431 #endif
7432 #ifdef FEAT_AUTOCMD
7433 	modified_was_set = value;
7434 #endif
7435     }
7436 
7437 #ifdef BACKSLASH_IN_FILENAME
7438     else if ((int *)varp == &p_ssl)
7439     {
7440 	if (p_ssl)
7441 	{
7442 	    psepc = '/';
7443 	    psepcN = '\\';
7444 	    pseps[0] = '/';
7445 	}
7446 	else
7447 	{
7448 	    psepc = '\\';
7449 	    psepcN = '/';
7450 	    pseps[0] = '\\';
7451 	}
7452 
7453 	/* need to adjust the file name arguments and buffer names. */
7454 	buflist_slash_adjust();
7455 	alist_slash_adjust();
7456 # ifdef FEAT_EVAL
7457 	scriptnames_slash_adjust();
7458 # endif
7459     }
7460 #endif
7461 
7462     /* If 'wrap' is set, set w_leftcol to zero. */
7463     else if ((int *)varp == &curwin->w_p_wrap)
7464     {
7465 	if (curwin->w_p_wrap)
7466 	    curwin->w_leftcol = 0;
7467 	if (curwin->w_curswant != MAXCOL)
7468 	    curwin->w_set_curswant = TRUE;
7469     }
7470 
7471 #ifdef FEAT_WINDOWS
7472     else if ((int *)varp == &p_ea)
7473     {
7474 	if (p_ea && !old_value)
7475 	    win_equal(curwin, FALSE, 0);
7476     }
7477 #endif
7478 
7479     else if ((int *)varp == &p_wiv)
7480     {
7481 	/*
7482 	 * When 'weirdinvert' changed, set/reset 't_xs'.
7483 	 * Then set 'weirdinvert' according to value of 't_xs'.
7484 	 */
7485 	if (p_wiv && !old_value)
7486 	    T_XS = (char_u *)"y";
7487 	else if (!p_wiv && old_value)
7488 	    T_XS = empty_option;
7489 	p_wiv = (*T_XS != NUL);
7490     }
7491 
7492 #ifdef FEAT_BEVAL
7493     else if ((int *)varp == &p_beval)
7494     {
7495 	if (p_beval == TRUE)
7496 	    gui_mch_enable_beval_area(balloonEval);
7497 	else
7498 	    gui_mch_disable_beval_area(balloonEval);
7499     }
7500 #endif
7501 
7502 #ifdef FEAT_AUTOCHDIR
7503     else if ((int *)varp == &p_acd)
7504     {
7505 	/* Change directories when the 'acd' option is set now. */
7506 	DO_AUTOCHDIR
7507     }
7508 #endif
7509 
7510 #ifdef FEAT_DIFF
7511     /* 'diff' */
7512     else if ((int *)varp == &curwin->w_p_diff)
7513     {
7514 	/* May add or remove the buffer from the list of diff buffers. */
7515 	diff_buf_adjust(curwin);
7516 # ifdef FEAT_FOLDING
7517 	if (foldmethodIsDiff(curwin))
7518 	    foldUpdateAll(curwin);
7519 # endif
7520     }
7521 #endif
7522 
7523 #ifdef USE_IM_CONTROL
7524     /* 'imdisable' */
7525     else if ((int *)varp == &p_imdisable)
7526     {
7527 	/* Only de-activate it here, it will be enabled when changing mode. */
7528 	if (p_imdisable)
7529 	    im_set_active(FALSE);
7530     }
7531 #endif
7532 
7533 #ifdef FEAT_SPELL
7534     /* 'spell' */
7535     else if ((int *)varp == &curwin->w_p_spell)
7536     {
7537 	if (curwin->w_p_spell)
7538 	{
7539 	    char_u	*errmsg = did_set_spelllang(curbuf);
7540 
7541 	    if (errmsg != NULL)
7542 		EMSG(_(errmsg));
7543 	}
7544     }
7545 #endif
7546 
7547 #ifdef FEAT_FKMAP
7548     else if ((int *)varp == &p_altkeymap)
7549     {
7550 	if (old_value != p_altkeymap)
7551 	{
7552 	    if (!p_altkeymap)
7553 	    {
7554 		p_hkmap = p_fkmap;
7555 		p_fkmap = 0;
7556 	    }
7557 	    else
7558 	    {
7559 		p_fkmap = p_hkmap;
7560 		p_hkmap = 0;
7561 	    }
7562 	    (void)init_chartab();
7563 	}
7564     }
7565 
7566     /*
7567      * In case some second language keymapping options have changed, check
7568      * and correct the setting in a consistent way.
7569      */
7570 
7571     /*
7572      * If hkmap or fkmap are set, reset Arabic keymapping.
7573      */
7574     if ((p_hkmap || p_fkmap) && p_altkeymap)
7575     {
7576 	p_altkeymap = p_fkmap;
7577 # ifdef FEAT_ARABIC
7578 	curwin->w_p_arab = FALSE;
7579 # endif
7580 	(void)init_chartab();
7581     }
7582 
7583     /*
7584      * If hkmap set, reset Farsi keymapping.
7585      */
7586     if (p_hkmap && p_altkeymap)
7587     {
7588 	p_altkeymap = 0;
7589 	p_fkmap = 0;
7590 # ifdef FEAT_ARABIC
7591 	curwin->w_p_arab = FALSE;
7592 # endif
7593 	(void)init_chartab();
7594     }
7595 
7596     /*
7597      * If fkmap set, reset Hebrew keymapping.
7598      */
7599     if (p_fkmap && !p_altkeymap)
7600     {
7601 	p_altkeymap = 1;
7602 	p_hkmap = 0;
7603 # ifdef FEAT_ARABIC
7604 	curwin->w_p_arab = FALSE;
7605 # endif
7606 	(void)init_chartab();
7607     }
7608 #endif
7609 
7610 #ifdef FEAT_ARABIC
7611     if ((int *)varp == &curwin->w_p_arab)
7612     {
7613 	if (curwin->w_p_arab)
7614 	{
7615 	    /*
7616 	     * 'arabic' is set, handle various sub-settings.
7617 	     */
7618 	    if (!p_tbidi)
7619 	    {
7620 		/* set rightleft mode */
7621 		if (!curwin->w_p_rl)
7622 		{
7623 		    curwin->w_p_rl = TRUE;
7624 		    changed_window_setting();
7625 		}
7626 
7627 		/* Enable Arabic shaping (major part of what Arabic requires) */
7628 		if (!p_arshape)
7629 		{
7630 		    p_arshape = TRUE;
7631 		    redraw_later_clear();
7632 		}
7633 	    }
7634 
7635 	    /* Arabic requires a utf-8 encoding, inform the user if its not
7636 	     * set. */
7637 	    if (STRCMP(p_enc, "utf-8") != 0)
7638 	    {
7639 		static char *w_arabic = N_("W17: Arabic requires UTF-8, do ':set encoding=utf-8'");
7640 
7641 		msg_source(hl_attr(HLF_W));
7642 		MSG_ATTR(_(w_arabic), hl_attr(HLF_W));
7643 #ifdef FEAT_EVAL
7644 		set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_arabic), -1);
7645 #endif
7646 	    }
7647 
7648 # ifdef FEAT_MBYTE
7649 	    /* set 'delcombine' */
7650 	    p_deco = TRUE;
7651 # endif
7652 
7653 # ifdef FEAT_KEYMAP
7654 	    /* Force-set the necessary keymap for arabic */
7655 	    set_option_value((char_u *)"keymap", 0L, (char_u *)"arabic",
7656 								   OPT_LOCAL);
7657 # endif
7658 # ifdef FEAT_FKMAP
7659 	    p_altkeymap = 0;
7660 	    p_hkmap = 0;
7661 	    p_fkmap = 0;
7662 	    (void)init_chartab();
7663 # endif
7664 	}
7665 	else
7666 	{
7667 	    /*
7668 	     * 'arabic' is reset, handle various sub-settings.
7669 	     */
7670 	    if (!p_tbidi)
7671 	    {
7672 		/* reset rightleft mode */
7673 		if (curwin->w_p_rl)
7674 		{
7675 		    curwin->w_p_rl = FALSE;
7676 		    changed_window_setting();
7677 		}
7678 
7679 		/* 'arabicshape' isn't reset, it is a global option and
7680 		 * another window may still need it "on". */
7681 	    }
7682 
7683 	    /* 'delcombine' isn't reset, it is a global option and another
7684 	     * window may still want it "on". */
7685 
7686 # ifdef FEAT_KEYMAP
7687 	    /* Revert to the default keymap */
7688 	    curbuf->b_p_iminsert = B_IMODE_NONE;
7689 	    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
7690 # endif
7691 	}
7692 	if (curwin->w_curswant != MAXCOL)
7693 	    curwin->w_set_curswant = TRUE;
7694     }
7695 
7696     else if ((int *)varp == &p_arshape)
7697     {
7698 	if (curwin->w_curswant != MAXCOL)
7699 	    curwin->w_set_curswant = TRUE;
7700     }
7701 #endif
7702 
7703 #ifdef FEAT_LINEBREAK
7704     if ((int *)varp == &curwin->w_p_lbr)
7705     {
7706 	if (curwin->w_curswant != MAXCOL)
7707 	    curwin->w_set_curswant = TRUE;
7708     }
7709 #endif
7710 
7711 #ifdef FEAT_RIGHTLEFT
7712     if ((int *)varp == &curwin->w_p_rl)
7713     {
7714 	if (curwin->w_curswant != MAXCOL)
7715 	    curwin->w_set_curswant = TRUE;
7716     }
7717 #endif
7718 
7719     /*
7720      * End of handling side effects for bool options.
7721      */
7722 
7723     options[opt_idx].flags |= P_WAS_SET;
7724 
7725     comp_col();			    /* in case 'ruler' or 'showcmd' changed */
7726 
7727     check_redraw(options[opt_idx].flags);
7728 
7729     return NULL;
7730 }
7731 
7732 /*
7733  * Set the value of a number option, and take care of side effects.
7734  * Returns NULL for success, or an error message for an error.
7735  */
7736     static char_u *
7737 set_num_option(opt_idx, varp, value, errbuf, errbuflen, opt_flags)
7738     int		opt_idx;		/* index in options[] table */
7739     char_u	*varp;			/* pointer to the option variable */
7740     long	value;			/* new value */
7741     char_u	*errbuf;		/* buffer for error messages */
7742     size_t	errbuflen;		/* length of "errbuf" */
7743     int		opt_flags;		/* OPT_LOCAL, OPT_GLOBAL and
7744 					   OPT_MODELINE */
7745 {
7746     char_u	*errmsg = NULL;
7747     long	old_value = *(long *)varp;
7748     long	old_Rows = Rows;	/* remember old Rows */
7749     long	old_Columns = Columns;	/* remember old Columns */
7750     long	*pp = (long *)varp;
7751 
7752     /* Disallow changing some options from secure mode. */
7753     if ((secure
7754 #ifdef HAVE_SANDBOX
7755 		|| sandbox != 0
7756 #endif
7757 		) && (options[opt_idx].flags & P_SECURE))
7758 	return e_secure;
7759 
7760     *pp = value;
7761 #ifdef FEAT_EVAL
7762     /* Remember where the option was set. */
7763     set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
7764 #endif
7765 #ifdef FEAT_GUI
7766     need_mouse_correct = TRUE;
7767 #endif
7768 
7769     if (curbuf->b_p_sw <= 0)
7770     {
7771 	errmsg = e_positive;
7772 	curbuf->b_p_sw = curbuf->b_p_ts;
7773     }
7774 
7775     /*
7776      * Number options that need some action when changed
7777      */
7778 #ifdef FEAT_WINDOWS
7779     if (pp == &p_wh || pp == &p_hh)
7780     {
7781 	if (p_wh < 1)
7782 	{
7783 	    errmsg = e_positive;
7784 	    p_wh = 1;
7785 	}
7786 	if (p_wmh > p_wh)
7787 	{
7788 	    errmsg = e_winheight;
7789 	    p_wh = p_wmh;
7790 	}
7791 	if (p_hh < 0)
7792 	{
7793 	    errmsg = e_positive;
7794 	    p_hh = 0;
7795 	}
7796 
7797 	/* Change window height NOW */
7798 	if (lastwin != firstwin)
7799 	{
7800 	    if (pp == &p_wh && curwin->w_height < p_wh)
7801 		win_setheight((int)p_wh);
7802 	    if (pp == &p_hh && curbuf->b_help && curwin->w_height < p_hh)
7803 		win_setheight((int)p_hh);
7804 	}
7805     }
7806 
7807     /* 'winminheight' */
7808     else if (pp == &p_wmh)
7809     {
7810 	if (p_wmh < 0)
7811 	{
7812 	    errmsg = e_positive;
7813 	    p_wmh = 0;
7814 	}
7815 	if (p_wmh > p_wh)
7816 	{
7817 	    errmsg = e_winheight;
7818 	    p_wmh = p_wh;
7819 	}
7820 	win_setminheight();
7821     }
7822 
7823 # ifdef FEAT_VERTSPLIT
7824     else if (pp == &p_wiw)
7825     {
7826 	if (p_wiw < 1)
7827 	{
7828 	    errmsg = e_positive;
7829 	    p_wiw = 1;
7830 	}
7831 	if (p_wmw > p_wiw)
7832 	{
7833 	    errmsg = e_winwidth;
7834 	    p_wiw = p_wmw;
7835 	}
7836 
7837 	/* Change window width NOW */
7838 	if (lastwin != firstwin && curwin->w_width < p_wiw)
7839 	    win_setwidth((int)p_wiw);
7840     }
7841 
7842     /* 'winminwidth' */
7843     else if (pp == &p_wmw)
7844     {
7845 	if (p_wmw < 0)
7846 	{
7847 	    errmsg = e_positive;
7848 	    p_wmw = 0;
7849 	}
7850 	if (p_wmw > p_wiw)
7851 	{
7852 	    errmsg = e_winwidth;
7853 	    p_wmw = p_wiw;
7854 	}
7855 	win_setminheight();
7856     }
7857 # endif
7858 
7859 #endif
7860 
7861 #ifdef FEAT_WINDOWS
7862     /* (re)set last window status line */
7863     else if (pp == &p_ls)
7864     {
7865 	last_status(FALSE);
7866     }
7867 
7868     /* (re)set tab page line */
7869     else if (pp == &p_stal)
7870     {
7871 	shell_new_rows();	/* recompute window positions and heights */
7872     }
7873 #endif
7874 
7875 #ifdef FEAT_GUI
7876     else if (pp == &p_linespace)
7877     {
7878 	/* Recompute gui.char_height and resize the Vim window to keep the
7879 	 * same number of lines. */
7880 	if (gui.in_use && gui_mch_adjust_charheight() == OK)
7881 	    gui_set_shellsize(FALSE, FALSE, RESIZE_VERT);
7882     }
7883 #endif
7884 
7885 #ifdef FEAT_FOLDING
7886     /* 'foldlevel' */
7887     else if (pp == &curwin->w_p_fdl)
7888     {
7889 	if (curwin->w_p_fdl < 0)
7890 	    curwin->w_p_fdl = 0;
7891 	newFoldLevel();
7892     }
7893 
7894     /* 'foldminlines' */
7895     else if (pp == &curwin->w_p_fml)
7896     {
7897 	foldUpdateAll(curwin);
7898     }
7899 
7900     /* 'foldnestmax' */
7901     else if (pp == &curwin->w_p_fdn)
7902     {
7903 	if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin))
7904 	    foldUpdateAll(curwin);
7905     }
7906 
7907     /* 'foldcolumn' */
7908     else if (pp == &curwin->w_p_fdc)
7909     {
7910 	if (curwin->w_p_fdc < 0)
7911 	{
7912 	    errmsg = e_positive;
7913 	    curwin->w_p_fdc = 0;
7914 	}
7915 	else if (curwin->w_p_fdc > 12)
7916 	{
7917 	    errmsg = e_invarg;
7918 	    curwin->w_p_fdc = 12;
7919 	}
7920     }
7921 
7922     /* 'shiftwidth' or 'tabstop' */
7923     else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts)
7924     {
7925 	if (foldmethodIsIndent(curwin))
7926 	    foldUpdateAll(curwin);
7927     }
7928 #endif /* FEAT_FOLDING */
7929 
7930 #ifdef FEAT_MBYTE
7931     /* 'maxcombine' */
7932     else if (pp == &p_mco)
7933     {
7934 	if (p_mco > MAX_MCO)
7935 	    p_mco = MAX_MCO;
7936 	else if (p_mco < 0)
7937 	    p_mco = 0;
7938 	screenclear();	    /* will re-allocate the screen */
7939     }
7940 #endif
7941 
7942     else if (pp == &curbuf->b_p_iminsert)
7943     {
7944 	if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST)
7945 	{
7946 	    errmsg = e_invarg;
7947 	    curbuf->b_p_iminsert = B_IMODE_NONE;
7948 	}
7949 	p_iminsert = curbuf->b_p_iminsert;
7950 	if (termcap_active)	/* don't do this in the alternate screen */
7951 	    showmode();
7952 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
7953 	/* Show/unshow value of 'keymap' in status lines. */
7954 	status_redraw_curbuf();
7955 #endif
7956     }
7957 
7958     else if (pp == &p_window)
7959     {
7960 	if (p_window < 1)
7961 	    p_window = 1;
7962 	else if (p_window >= Rows)
7963 	    p_window = Rows - 1;
7964     }
7965 
7966     else if (pp == &curbuf->b_p_imsearch)
7967     {
7968 	if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST)
7969 	{
7970 	    errmsg = e_invarg;
7971 	    curbuf->b_p_imsearch = B_IMODE_NONE;
7972 	}
7973 	p_imsearch = curbuf->b_p_imsearch;
7974     }
7975 
7976 #ifdef FEAT_TITLE
7977     /* if 'titlelen' has changed, redraw the title */
7978     else if (pp == &p_titlelen)
7979     {
7980 	if (p_titlelen < 0)
7981 	{
7982 	    errmsg = e_positive;
7983 	    p_titlelen = 85;
7984 	}
7985 	if (starting != NO_SCREEN && old_value != p_titlelen)
7986 	    need_maketitle = TRUE;
7987     }
7988 #endif
7989 
7990     /* if p_ch changed value, change the command line height */
7991     else if (pp == &p_ch)
7992     {
7993 	if (p_ch < 1)
7994 	{
7995 	    errmsg = e_positive;
7996 	    p_ch = 1;
7997 	}
7998 	if (p_ch > Rows - min_rows() + 1)
7999 	    p_ch = Rows - min_rows() + 1;
8000 
8001 	/* Only compute the new window layout when startup has been
8002 	 * completed. Otherwise the frame sizes may be wrong. */
8003 	if (p_ch != old_value && full_screen
8004 #ifdef FEAT_GUI
8005 		&& !gui.starting
8006 #endif
8007 	   )
8008 	    command_height();
8009     }
8010 
8011     /* when 'updatecount' changes from zero to non-zero, open swap files */
8012     else if (pp == &p_uc)
8013     {
8014 	if (p_uc < 0)
8015 	{
8016 	    errmsg = e_positive;
8017 	    p_uc = 100;
8018 	}
8019 	if (p_uc && !old_value)
8020 	    ml_open_files();
8021     }
8022 #ifdef MZSCHEME_GUI_THREADS
8023     else if (pp == &p_mzq)
8024 	mzvim_reset_timer();
8025 #endif
8026 
8027     /* sync undo before 'undolevels' changes */
8028     else if (pp == &p_ul)
8029     {
8030 	/* use the old value, otherwise u_sync() may not work properly */
8031 	p_ul = old_value;
8032 	u_sync(TRUE);
8033 	p_ul = value;
8034     }
8035 
8036 #ifdef FEAT_LINEBREAK
8037     /* 'numberwidth' must be positive */
8038     else if (pp == &curwin->w_p_nuw)
8039     {
8040 	if (curwin->w_p_nuw < 1)
8041 	{
8042 	    errmsg = e_positive;
8043 	    curwin->w_p_nuw = 1;
8044 	}
8045 	if (curwin->w_p_nuw > 10)
8046 	{
8047 	    errmsg = e_invarg;
8048 	    curwin->w_p_nuw = 10;
8049 	}
8050 	curwin->w_nrwidth_line_count = 0;
8051     }
8052 #endif
8053 
8054     /*
8055      * Check the bounds for numeric options here
8056      */
8057     if (Rows < min_rows() && full_screen)
8058     {
8059 	if (errbuf != NULL)
8060 	{
8061 	    vim_snprintf((char *)errbuf, errbuflen,
8062 			       _("E593: Need at least %d lines"), min_rows());
8063 	    errmsg = errbuf;
8064 	}
8065 	Rows = min_rows();
8066     }
8067     if (Columns < MIN_COLUMNS && full_screen)
8068     {
8069 	if (errbuf != NULL)
8070 	{
8071 	    vim_snprintf((char *)errbuf, errbuflen,
8072 			    _("E594: Need at least %d columns"), MIN_COLUMNS);
8073 	    errmsg = errbuf;
8074 	}
8075 	Columns = MIN_COLUMNS;
8076     }
8077     /* Limit the values to avoid an overflow in Rows * Columns. */
8078     if (Columns > 10000)
8079 	Columns = 10000;
8080     if (Rows > 1000)
8081 	Rows = 1000;
8082 
8083 #ifdef DJGPP
8084     /* avoid a crash by checking for a too large value of 'columns' */
8085     if (old_Columns != Columns && full_screen && term_console)
8086 	mch_check_columns();
8087 #endif
8088 
8089     /*
8090      * If the screen (shell) height has been changed, assume it is the
8091      * physical screenheight.
8092      */
8093     if (old_Rows != Rows || old_Columns != Columns)
8094     {
8095 	/* Changing the screen size is not allowed while updating the screen. */
8096 	if (updating_screen)
8097 	    *pp = old_value;
8098 	else if (full_screen
8099 #ifdef FEAT_GUI
8100 		&& !gui.starting
8101 #endif
8102 	    )
8103 	    set_shellsize((int)Columns, (int)Rows, TRUE);
8104 	else
8105 	{
8106 	    /* Postpone the resizing; check the size and cmdline position for
8107 	     * messages. */
8108 	    check_shellsize();
8109 	    if (cmdline_row > Rows - p_ch && Rows > p_ch)
8110 		cmdline_row = Rows - p_ch;
8111 	}
8112 	if (p_window >= Rows || !option_was_set((char_u *)"window"))
8113 	    p_window = Rows - 1;
8114     }
8115 
8116     if (curbuf->b_p_sts < 0)
8117     {
8118 	errmsg = e_positive;
8119 	curbuf->b_p_sts = 0;
8120     }
8121     if (curbuf->b_p_ts <= 0)
8122     {
8123 	errmsg = e_positive;
8124 	curbuf->b_p_ts = 8;
8125     }
8126     if (curbuf->b_p_tw < 0)
8127     {
8128 	errmsg = e_positive;
8129 	curbuf->b_p_tw = 0;
8130     }
8131     if (p_tm < 0)
8132     {
8133 	errmsg = e_positive;
8134 	p_tm = 0;
8135     }
8136     if ((curwin->w_p_scr <= 0
8137 		|| (curwin->w_p_scr > curwin->w_height
8138 		    && curwin->w_height > 0))
8139 	    && full_screen)
8140     {
8141 	if (pp == &(curwin->w_p_scr))
8142 	{
8143 	    if (curwin->w_p_scr != 0)
8144 		errmsg = e_scroll;
8145 	    win_comp_scroll(curwin);
8146 	}
8147 	/* If 'scroll' became invalid because of a side effect silently adjust
8148 	 * it. */
8149 	else if (curwin->w_p_scr <= 0)
8150 	    curwin->w_p_scr = 1;
8151 	else /* curwin->w_p_scr > curwin->w_height */
8152 	    curwin->w_p_scr = curwin->w_height;
8153     }
8154     if (p_hi < 0)
8155     {
8156 	errmsg = e_positive;
8157 	p_hi = 0;
8158     }
8159     if (p_report < 0)
8160     {
8161 	errmsg = e_positive;
8162 	p_report = 1;
8163     }
8164     if ((p_sj < -100 || p_sj >= Rows) && full_screen)
8165     {
8166 	if (Rows != old_Rows)	/* Rows changed, just adjust p_sj */
8167 	    p_sj = Rows / 2;
8168 	else
8169 	{
8170 	    errmsg = e_scroll;
8171 	    p_sj = 1;
8172 	}
8173     }
8174     if (p_so < 0 && full_screen)
8175     {
8176 	errmsg = e_scroll;
8177 	p_so = 0;
8178     }
8179     if (p_siso < 0 && full_screen)
8180     {
8181 	errmsg = e_positive;
8182 	p_siso = 0;
8183     }
8184 #ifdef FEAT_CMDWIN
8185     if (p_cwh < 1)
8186     {
8187 	errmsg = e_positive;
8188 	p_cwh = 1;
8189     }
8190 #endif
8191     if (p_ut < 0)
8192     {
8193 	errmsg = e_positive;
8194 	p_ut = 2000;
8195     }
8196     if (p_ss < 0)
8197     {
8198 	errmsg = e_positive;
8199 	p_ss = 0;
8200     }
8201 
8202     /* May set global value for local option. */
8203     if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
8204 	*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = *pp;
8205 
8206     options[opt_idx].flags |= P_WAS_SET;
8207 
8208     comp_col();			    /* in case 'columns' or 'ls' changed */
8209     if (curwin->w_curswant != MAXCOL)
8210 	curwin->w_set_curswant = TRUE;  /* in case 'tabstop' changed */
8211     check_redraw(options[opt_idx].flags);
8212 
8213     return errmsg;
8214 }
8215 
8216 /*
8217  * Called after an option changed: check if something needs to be redrawn.
8218  */
8219     static void
8220 check_redraw(flags)
8221     long_u	flags;
8222 {
8223     /* Careful: P_RCLR and P_RALL are a combination of other P_ flags */
8224     int		clear = (flags & P_RCLR) == P_RCLR;
8225     int		all = ((flags & P_RALL) == P_RALL || clear);
8226 
8227 #ifdef FEAT_WINDOWS
8228     if ((flags & P_RSTAT) || all)	/* mark all status lines dirty */
8229 	status_redraw_all();
8230 #endif
8231 
8232     if ((flags & P_RBUF) || (flags & P_RWIN) || all)
8233 	changed_window_setting();
8234     if (flags & P_RBUF)
8235 	redraw_curbuf_later(NOT_VALID);
8236     if (clear)
8237 	redraw_all_later(CLEAR);
8238     else if (all)
8239 	redraw_all_later(NOT_VALID);
8240 }
8241 
8242 /*
8243  * Find index for option 'arg'.
8244  * Return -1 if not found.
8245  */
8246     static int
8247 findoption(arg)
8248     char_u *arg;
8249 {
8250     int		    opt_idx;
8251     char	    *s, *p;
8252     static short    quick_tab[27] = {0, 0};	/* quick access table */
8253     int		    is_term_opt;
8254 
8255     /*
8256      * For first call: Initialize the quick-access table.
8257      * It contains the index for the first option that starts with a certain
8258      * letter.  There are 26 letters, plus the first "t_" option.
8259      */
8260     if (quick_tab[1] == 0)
8261     {
8262 	p = options[0].fullname;
8263 	for (opt_idx = 1; (s = options[opt_idx].fullname) != NULL; opt_idx++)
8264 	{
8265 	    if (s[0] != p[0])
8266 	    {
8267 		if (s[0] == 't' && s[1] == '_')
8268 		    quick_tab[26] = opt_idx;
8269 		else
8270 		    quick_tab[CharOrdLow(s[0])] = opt_idx;
8271 	    }
8272 	    p = s;
8273 	}
8274     }
8275 
8276     /*
8277      * Check for name starting with an illegal character.
8278      */
8279 #ifdef EBCDIC
8280     if (!islower(arg[0]))
8281 #else
8282     if (arg[0] < 'a' || arg[0] > 'z')
8283 #endif
8284 	return -1;
8285 
8286     is_term_opt = (arg[0] == 't' && arg[1] == '_');
8287     if (is_term_opt)
8288 	opt_idx = quick_tab[26];
8289     else
8290 	opt_idx = quick_tab[CharOrdLow(arg[0])];
8291     for ( ; (s = options[opt_idx].fullname) != NULL; opt_idx++)
8292     {
8293 	if (STRCMP(arg, s) == 0)		    /* match full name */
8294 	    break;
8295     }
8296     if (s == NULL && !is_term_opt)
8297     {
8298 	opt_idx = quick_tab[CharOrdLow(arg[0])];
8299 	for ( ; options[opt_idx].fullname != NULL; opt_idx++)
8300 	{
8301 	    s = options[opt_idx].shortname;
8302 	    if (s != NULL && STRCMP(arg, s) == 0)   /* match short name */
8303 		break;
8304 	    s = NULL;
8305 	}
8306     }
8307     if (s == NULL)
8308 	opt_idx = -1;
8309     return opt_idx;
8310 }
8311 
8312 #if defined(FEAT_EVAL) || defined(FEAT_TCL) || defined(FEAT_MZSCHEME)
8313 /*
8314  * Get the value for an option.
8315  *
8316  * Returns:
8317  * Number or Toggle option: 1, *numval gets value.
8318  *	     String option: 0, *stringval gets allocated string.
8319  * Hidden Number or Toggle option: -1.
8320  *	     hidden String option: -2.
8321  *		   unknown option: -3.
8322  */
8323     int
8324 get_option_value(name, numval, stringval, opt_flags)
8325     char_u	*name;
8326     long	*numval;
8327     char_u	**stringval;	    /* NULL when only checking existance */
8328     int		opt_flags;
8329 {
8330     int		opt_idx;
8331     char_u	*varp;
8332 
8333     opt_idx = findoption(name);
8334     if (opt_idx < 0)		    /* unknown option */
8335 	return -3;
8336 
8337     varp = get_varp_scope(&(options[opt_idx]), opt_flags);
8338 
8339     if (options[opt_idx].flags & P_STRING)
8340     {
8341 	if (varp == NULL)		    /* hidden option */
8342 	    return -2;
8343 	if (stringval != NULL)
8344 	{
8345 #ifdef FEAT_CRYPT
8346 	    /* never return the value of the crypt key */
8347 	    if ((char_u **)varp == &curbuf->b_p_key
8348 						&& **(char_u **)(varp) != NUL)
8349 		*stringval = vim_strsave((char_u *)"*****");
8350 	    else
8351 #endif
8352 		*stringval = vim_strsave(*(char_u **)(varp));
8353 	}
8354 	return 0;
8355     }
8356 
8357     if (varp == NULL)		    /* hidden option */
8358 	return -1;
8359     if (options[opt_idx].flags & P_NUM)
8360 	*numval = *(long *)varp;
8361     else
8362     {
8363 	/* Special case: 'modified' is b_changed, but we also want to consider
8364 	 * it set when 'ff' or 'fenc' changed. */
8365 	if ((int *)varp == &curbuf->b_changed)
8366 	    *numval = curbufIsChanged();
8367 	else
8368 	    *numval = *(int *)varp;
8369     }
8370     return 1;
8371 }
8372 #endif
8373 
8374 /*
8375  * Set the value of option "name".
8376  * Use "string" for string options, use "number" for other options.
8377  */
8378     void
8379 set_option_value(name, number, string, opt_flags)
8380     char_u	*name;
8381     long	number;
8382     char_u	*string;
8383     int		opt_flags;	/* OPT_LOCAL or 0 (both) */
8384 {
8385     int		opt_idx;
8386     char_u	*varp;
8387     long_u	flags;
8388 
8389     opt_idx = findoption(name);
8390     if (opt_idx < 0)
8391 	EMSG2(_("E355: Unknown option: %s"), name);
8392     else
8393     {
8394 	flags = options[opt_idx].flags;
8395 #ifdef HAVE_SANDBOX
8396 	/* Disallow changing some options in the sandbox */
8397 	if (sandbox > 0 && (flags & P_SECURE))
8398 	{
8399 	    EMSG(_(e_sandbox));
8400 	    return;
8401 	}
8402 #endif
8403 	if (flags & P_STRING)
8404 	    set_string_option(opt_idx, string, opt_flags);
8405 	else
8406 	{
8407 	    varp = get_varp_scope(&(options[opt_idx]), opt_flags);
8408 	    if (varp != NULL)	/* hidden option is not changed */
8409 	    {
8410 		if (number == 0 && string != NULL)
8411 		{
8412 		    int idx;
8413 
8414 		    /* Either we are given a string or we are setting option
8415 		     * to zero. */
8416 		    for (idx = 0; string[idx] == '0'; ++idx)
8417 			;
8418 		    if (string[idx] != NUL || idx == 0)
8419 		    {
8420 			/* There's another character after zeros or the string
8421 			 * is empty.  In both cases, we are trying to set a
8422 			 * num option using a string. */
8423 			EMSG3(_("E521: Number required: &%s = '%s'"),
8424 								name, string);
8425 			return;     /* do nothing as we hit an error */
8426 
8427 		    }
8428 		}
8429 		if (flags & P_NUM)
8430 		    (void)set_num_option(opt_idx, varp, number,
8431 							  NULL, 0, opt_flags);
8432 		else
8433 		    (void)set_bool_option(opt_idx, varp, (int)number,
8434 								   opt_flags);
8435 	    }
8436 	}
8437     }
8438 }
8439 
8440 /*
8441  * Get the terminal code for a terminal option.
8442  * Returns NULL when not found.
8443  */
8444     char_u *
8445 get_term_code(tname)
8446     char_u	*tname;
8447 {
8448     int	    opt_idx;
8449     char_u  *varp;
8450 
8451     if (tname[0] != 't' || tname[1] != '_' ||
8452 	    tname[2] == NUL || tname[3] == NUL)
8453 	return NULL;
8454     if ((opt_idx = findoption(tname)) >= 0)
8455     {
8456 	varp = get_varp(&(options[opt_idx]));
8457 	if (varp != NULL)
8458 	    varp = *(char_u **)(varp);
8459 	return varp;
8460     }
8461     return find_termcode(tname + 2);
8462 }
8463 
8464     char_u *
8465 get_highlight_default()
8466 {
8467     int i;
8468 
8469     i = findoption((char_u *)"hl");
8470     if (i >= 0)
8471 	return options[i].def_val[VI_DEFAULT];
8472     return (char_u *)NULL;
8473 }
8474 
8475 #if defined(FEAT_MBYTE) || defined(PROTO)
8476     char_u *
8477 get_encoding_default()
8478 {
8479     int i;
8480 
8481     i = findoption((char_u *)"enc");
8482     if (i >= 0)
8483 	return options[i].def_val[VI_DEFAULT];
8484     return (char_u *)NULL;
8485 }
8486 #endif
8487 
8488 /*
8489  * Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number.
8490  */
8491     static int
8492 find_key_option(arg)
8493     char_u *arg;
8494 {
8495     int		key;
8496     int		modifiers;
8497 
8498     /*
8499      * Don't use get_special_key_code() for t_xx, we don't want it to call
8500      * add_termcap_entry().
8501      */
8502     if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
8503 	key = TERMCAP2KEY(arg[2], arg[3]);
8504     else
8505     {
8506 	--arg;			    /* put arg at the '<' */
8507 	modifiers = 0;
8508 	key = find_special_key(&arg, &modifiers, TRUE, TRUE);
8509 	if (modifiers)		    /* can't handle modifiers here */
8510 	    key = 0;
8511     }
8512     return key;
8513 }
8514 
8515 /*
8516  * if 'all' == 0: show changed options
8517  * if 'all' == 1: show all normal options
8518  * if 'all' == 2: show all terminal options
8519  */
8520     static void
8521 showoptions(all, opt_flags)
8522     int		all;
8523     int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
8524 {
8525     struct vimoption	*p;
8526     int			col;
8527     int			isterm;
8528     char_u		*varp;
8529     struct vimoption	**items;
8530     int			item_count;
8531     int			run;
8532     int			row, rows;
8533     int			cols;
8534     int			i;
8535     int			len;
8536 
8537 #define INC 20
8538 #define GAP 3
8539 
8540     items = (struct vimoption **)alloc((unsigned)(sizeof(struct vimoption *) *
8541 								PARAM_COUNT));
8542     if (items == NULL)
8543 	return;
8544 
8545     /* Highlight title */
8546     if (all == 2)
8547 	MSG_PUTS_TITLE(_("\n--- Terminal codes ---"));
8548     else if (opt_flags & OPT_GLOBAL)
8549 	MSG_PUTS_TITLE(_("\n--- Global option values ---"));
8550     else if (opt_flags & OPT_LOCAL)
8551 	MSG_PUTS_TITLE(_("\n--- Local option values ---"));
8552     else
8553 	MSG_PUTS_TITLE(_("\n--- Options ---"));
8554 
8555     /*
8556      * do the loop two times:
8557      * 1. display the short items
8558      * 2. display the long items (only strings and numbers)
8559      */
8560     for (run = 1; run <= 2 && !got_int; ++run)
8561     {
8562 	/*
8563 	 * collect the items in items[]
8564 	 */
8565 	item_count = 0;
8566 	for (p = &options[0]; p->fullname != NULL; p++)
8567 	{
8568 	    varp = NULL;
8569 	    isterm = istermoption(p);
8570 	    if (opt_flags != 0)
8571 	    {
8572 		if (p->indir != PV_NONE && !isterm)
8573 		    varp = get_varp_scope(p, opt_flags);
8574 	    }
8575 	    else
8576 		varp = get_varp(p);
8577 	    if (varp != NULL
8578 		    && ((all == 2 && isterm)
8579 			|| (all == 1 && !isterm)
8580 			|| (all == 0 && !optval_default(p, varp))))
8581 	    {
8582 		if (p->flags & P_BOOL)
8583 		    len = 1;		/* a toggle option fits always */
8584 		else
8585 		{
8586 		    option_value2string(p, opt_flags);
8587 		    len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1;
8588 		}
8589 		if ((len <= INC - GAP && run == 1) ||
8590 						(len > INC - GAP && run == 2))
8591 		    items[item_count++] = p;
8592 	    }
8593 	}
8594 
8595 	/*
8596 	 * display the items
8597 	 */
8598 	if (run == 1)
8599 	{
8600 	    cols = (Columns + GAP - 3) / INC;
8601 	    if (cols == 0)
8602 		cols = 1;
8603 	    rows = (item_count + cols - 1) / cols;
8604 	}
8605 	else	/* run == 2 */
8606 	    rows = item_count;
8607 	for (row = 0; row < rows && !got_int; ++row)
8608 	{
8609 	    msg_putchar('\n');			/* go to next line */
8610 	    if (got_int)			/* 'q' typed in more */
8611 		break;
8612 	    col = 0;
8613 	    for (i = row; i < item_count; i += rows)
8614 	    {
8615 		msg_col = col;			/* make columns */
8616 		showoneopt(items[i], opt_flags);
8617 		col += INC;
8618 	    }
8619 	    out_flush();
8620 	    ui_breakcheck();
8621 	}
8622     }
8623     vim_free(items);
8624 }
8625 
8626 /*
8627  * Return TRUE if option "p" has its default value.
8628  */
8629     static int
8630 optval_default(p, varp)
8631     struct vimoption	*p;
8632     char_u		*varp;
8633 {
8634     int		dvi;
8635 
8636     if (varp == NULL)
8637 	return TRUE;	    /* hidden option is always at default */
8638     dvi = ((p->flags & P_VI_DEF) || p_cp) ? VI_DEFAULT : VIM_DEFAULT;
8639     if (p->flags & P_NUM)
8640 	return (*(long *)varp == (long)(long_i)p->def_val[dvi]);
8641     if (p->flags & P_BOOL)
8642 			/* the cast to long is required for Manx C, long_i is
8643 			 * needed for MSVC */
8644 	return (*(int *)varp == (int)(long)(long_i)p->def_val[dvi]);
8645     /* P_STRING */
8646     return (STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0);
8647 }
8648 
8649 /*
8650  * showoneopt: show the value of one option
8651  * must not be called with a hidden option!
8652  */
8653     static void
8654 showoneopt(p, opt_flags)
8655     struct vimoption	*p;
8656     int			opt_flags;	/* OPT_LOCAL or OPT_GLOBAL */
8657 {
8658     char_u	*varp;
8659     int		save_silent = silent_mode;
8660 
8661     silent_mode = FALSE;
8662     info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
8663 
8664     varp = get_varp_scope(p, opt_flags);
8665 
8666     /* for 'modified' we also need to check if 'ff' or 'fenc' changed. */
8667     if ((p->flags & P_BOOL) && ((int *)varp == &curbuf->b_changed
8668 					? !curbufIsChanged() : !*(int *)varp))
8669 	MSG_PUTS("no");
8670     else if ((p->flags & P_BOOL) && *(int *)varp < 0)
8671 	MSG_PUTS("--");
8672     else
8673 	MSG_PUTS("  ");
8674     MSG_PUTS(p->fullname);
8675     if (!(p->flags & P_BOOL))
8676     {
8677 	msg_putchar('=');
8678 	/* put value string in NameBuff */
8679 	option_value2string(p, opt_flags);
8680 	msg_outtrans(NameBuff);
8681     }
8682 
8683     silent_mode = save_silent;
8684     info_message = FALSE;
8685 }
8686 
8687 /*
8688  * Write modified options as ":set" commands to a file.
8689  *
8690  * There are three values for "opt_flags":
8691  * OPT_GLOBAL:		   Write global option values and fresh values of
8692  *			   buffer-local options (used for start of a session
8693  *			   file).
8694  * OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for
8695  *			   curwin (used for a vimrc file).
8696  * OPT_LOCAL:		   Write buffer-local option values for curbuf, fresh
8697  *			   and local values for window-local options of
8698  *			   curwin.  Local values are also written when at the
8699  *			   default value, because a modeline or autocommand
8700  *			   may have set them when doing ":edit file" and the
8701  *			   user has set them back at the default or fresh
8702  *			   value.
8703  *			   When "local_only" is TRUE, don't write fresh
8704  *			   values, only local values (for ":mkview").
8705  * (fresh value = value used for a new buffer or window for a local option).
8706  *
8707  * Return FAIL on error, OK otherwise.
8708  */
8709     int
8710 makeset(fd, opt_flags, local_only)
8711     FILE	*fd;
8712     int		opt_flags;
8713     int		local_only;
8714 {
8715     struct vimoption	*p;
8716     char_u		*varp;			/* currently used value */
8717     char_u		*varp_fresh;		/* local value */
8718     char_u		*varp_local = NULL;	/* fresh value */
8719     char		*cmd;
8720     int			round;
8721     int			pri;
8722 
8723     /*
8724      * The options that don't have a default (terminal name, columns, lines)
8725      * are never written.  Terminal options are also not written.
8726      * Do the loop over "options[]" twice: once for options with the
8727      * P_PRI_MKRC flag and once without.
8728      */
8729     for (pri = 1; pri >= 0; --pri)
8730     {
8731       for (p = &options[0]; !istermoption(p); p++)
8732 	if (!(p->flags & P_NO_MKRC)
8733 		&& !istermoption(p)
8734 		&& ((pri == 1) == ((p->flags & P_PRI_MKRC) != 0)))
8735 	{
8736 	    /* skip global option when only doing locals */
8737 	    if (p->indir == PV_NONE && !(opt_flags & OPT_GLOBAL))
8738 		continue;
8739 
8740 	    /* Do not store options like 'bufhidden' and 'syntax' in a vimrc
8741 	     * file, they are always buffer-specific. */
8742 	    if ((opt_flags & OPT_GLOBAL) && (p->flags & P_NOGLOB))
8743 		continue;
8744 
8745 	    /* Global values are only written when not at the default value. */
8746 	    varp = get_varp_scope(p, opt_flags);
8747 	    if ((opt_flags & OPT_GLOBAL) && optval_default(p, varp))
8748 		continue;
8749 
8750 	    round = 2;
8751 	    if (p->indir != PV_NONE)
8752 	    {
8753 		if (p->var == VAR_WIN)
8754 		{
8755 		    /* skip window-local option when only doing globals */
8756 		    if (!(opt_flags & OPT_LOCAL))
8757 			continue;
8758 		    /* When fresh value of window-local option is not at the
8759 		     * default, need to write it too. */
8760 		    if (!(opt_flags & OPT_GLOBAL) && !local_only)
8761 		    {
8762 			varp_fresh = get_varp_scope(p, OPT_GLOBAL);
8763 			if (!optval_default(p, varp_fresh))
8764 			{
8765 			    round = 1;
8766 			    varp_local = varp;
8767 			    varp = varp_fresh;
8768 			}
8769 		    }
8770 		}
8771 	    }
8772 
8773 	    /* Round 1: fresh value for window-local options.
8774 	     * Round 2: other values */
8775 	    for ( ; round <= 2; varp = varp_local, ++round)
8776 	    {
8777 		if (round == 1 || (opt_flags & OPT_GLOBAL))
8778 		    cmd = "set";
8779 		else
8780 		    cmd = "setlocal";
8781 
8782 		if (p->flags & P_BOOL)
8783 		{
8784 		    if (put_setbool(fd, cmd, p->fullname, *(int *)varp) == FAIL)
8785 			return FAIL;
8786 		}
8787 		else if (p->flags & P_NUM)
8788 		{
8789 		    if (put_setnum(fd, cmd, p->fullname, (long *)varp) == FAIL)
8790 			return FAIL;
8791 		}
8792 		else    /* P_STRING */
8793 		{
8794 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
8795 		    int		do_endif = FALSE;
8796 
8797 		    /* Don't set 'syntax' and 'filetype' again if the value is
8798 		     * already right, avoids reloading the syntax file. */
8799 		    if (
8800 # if defined(FEAT_SYN_HL)
8801 			    p->indir == PV_SYN
8802 #  if defined(FEAT_AUTOCMD)
8803 			    ||
8804 #  endif
8805 # endif
8806 # if defined(FEAT_AUTOCMD)
8807 			    p->indir == PV_FT
8808 # endif
8809 			    )
8810 		    {
8811 			if (fprintf(fd, "if &%s != '%s'", p->fullname,
8812 						       *(char_u **)(varp)) < 0
8813 				|| put_eol(fd) < 0)
8814 			    return FAIL;
8815 			do_endif = TRUE;
8816 		    }
8817 #endif
8818 		    if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
8819 					  (p->flags & P_EXPAND) != 0) == FAIL)
8820 			return FAIL;
8821 #if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
8822 		    if (do_endif)
8823 		    {
8824 			if (put_line(fd, "endif") == FAIL)
8825 			    return FAIL;
8826 		    }
8827 #endif
8828 		}
8829 	    }
8830 	}
8831     }
8832     return OK;
8833 }
8834 
8835 #if defined(FEAT_FOLDING) || defined(PROTO)
8836 /*
8837  * Generate set commands for the local fold options only.  Used when
8838  * 'sessionoptions' or 'viewoptions' contains "folds" but not "options".
8839  */
8840     int
8841 makefoldset(fd)
8842     FILE	*fd;
8843 {
8844     if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, FALSE) == FAIL
8845 # ifdef FEAT_EVAL
8846 	    || put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, FALSE)
8847 								       == FAIL
8848 # endif
8849 	    || put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, FALSE)
8850 								       == FAIL
8851 	    || put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, FALSE)
8852 								       == FAIL
8853 	    || put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL
8854 	    || put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL
8855 	    || put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL
8856 	    || put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL
8857 	    )
8858 	return FAIL;
8859 
8860     return OK;
8861 }
8862 #endif
8863 
8864     static int
8865 put_setstring(fd, cmd, name, valuep, expand)
8866     FILE	*fd;
8867     char	*cmd;
8868     char	*name;
8869     char_u	**valuep;
8870     int		expand;
8871 {
8872     char_u	*s;
8873     char_u	buf[MAXPATHL];
8874 
8875     if (fprintf(fd, "%s %s=", cmd, name) < 0)
8876 	return FAIL;
8877     if (*valuep != NULL)
8878     {
8879 	/* Output 'pastetoggle' as key names.  For other
8880 	 * options some characters have to be escaped with
8881 	 * CTRL-V or backslash */
8882 	if (valuep == &p_pt)
8883 	{
8884 	    s = *valuep;
8885 	    while (*s != NUL)
8886 		if (put_escstr(fd, str2special(&s, FALSE), 2) == FAIL)
8887 		    return FAIL;
8888 	}
8889 	else if (expand)
8890 	{
8891 	    home_replace(NULL, *valuep, buf, MAXPATHL, FALSE);
8892 	    if (put_escstr(fd, buf, 2) == FAIL)
8893 		return FAIL;
8894 	}
8895 	else if (put_escstr(fd, *valuep, 2) == FAIL)
8896 	    return FAIL;
8897     }
8898     if (put_eol(fd) < 0)
8899 	return FAIL;
8900     return OK;
8901 }
8902 
8903     static int
8904 put_setnum(fd, cmd, name, valuep)
8905     FILE	*fd;
8906     char	*cmd;
8907     char	*name;
8908     long	*valuep;
8909 {
8910     long	wc;
8911 
8912     if (fprintf(fd, "%s %s=", cmd, name) < 0)
8913 	return FAIL;
8914     if (wc_use_keyname((char_u *)valuep, &wc))
8915     {
8916 	/* print 'wildchar' and 'wildcharm' as a key name */
8917 	if (fputs((char *)get_special_key_name((int)wc, 0), fd) < 0)
8918 	    return FAIL;
8919     }
8920     else if (fprintf(fd, "%ld", *valuep) < 0)
8921 	return FAIL;
8922     if (put_eol(fd) < 0)
8923 	return FAIL;
8924     return OK;
8925 }
8926 
8927     static int
8928 put_setbool(fd, cmd, name, value)
8929     FILE	*fd;
8930     char	*cmd;
8931     char	*name;
8932     int		value;
8933 {
8934     if (value < 0)	/* global/local option using global value */
8935 	return OK;
8936     if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
8937 	    || put_eol(fd) < 0)
8938 	return FAIL;
8939     return OK;
8940 }
8941 
8942 /*
8943  * Clear all the terminal options.
8944  * If the option has been allocated, free the memory.
8945  * Terminal options are never hidden or indirect.
8946  */
8947     void
8948 clear_termoptions()
8949 {
8950     /*
8951      * Reset a few things before clearing the old options. This may cause
8952      * outputting a few things that the terminal doesn't understand, but the
8953      * screen will be cleared later, so this is OK.
8954      */
8955 #ifdef FEAT_MOUSE_TTY
8956     mch_setmouse(FALSE);	    /* switch mouse off */
8957 #endif
8958 #ifdef FEAT_TITLE
8959     mch_restore_title(3);	    /* restore window titles */
8960 #endif
8961 #if defined(FEAT_XCLIPBOARD) && defined(FEAT_GUI)
8962     /* When starting the GUI close the display opened for the clipboard.
8963      * After restoring the title, because that will need the display. */
8964     if (gui.starting)
8965 	clear_xterm_clip();
8966 #endif
8967 #ifdef WIN3264
8968     /*
8969      * Check if this is allowed now.
8970      */
8971     if (can_end_termcap_mode(FALSE) == TRUE)
8972 #endif
8973 	stoptermcap();			/* stop termcap mode */
8974 
8975     free_termoptions();
8976 }
8977 
8978     void
8979 free_termoptions()
8980 {
8981     struct vimoption   *p;
8982 
8983     for (p = &options[0]; p->fullname != NULL; p++)
8984 	if (istermoption(p))
8985 	{
8986 	    if (p->flags & P_ALLOCED)
8987 		free_string_option(*(char_u **)(p->var));
8988 	    if (p->flags & P_DEF_ALLOCED)
8989 		free_string_option(p->def_val[VI_DEFAULT]);
8990 	    *(char_u **)(p->var) = empty_option;
8991 	    p->def_val[VI_DEFAULT] = empty_option;
8992 	    p->flags &= ~(P_ALLOCED|P_DEF_ALLOCED);
8993 	}
8994     clear_termcodes();
8995 }
8996 
8997 /*
8998  * Free the string for one term option, if it was allocated.
8999  * Set the string to empty_option and clear allocated flag.
9000  * "var" points to the option value.
9001  */
9002     void
9003 free_one_termoption(var)
9004     char_u *var;
9005 {
9006     struct vimoption   *p;
9007 
9008     for (p = &options[0]; p->fullname != NULL; p++)
9009 	if (p->var == var)
9010 	{
9011 	    if (p->flags & P_ALLOCED)
9012 		free_string_option(*(char_u **)(p->var));
9013 	    *(char_u **)(p->var) = empty_option;
9014 	    p->flags &= ~P_ALLOCED;
9015 	    break;
9016 	}
9017 }
9018 
9019 /*
9020  * Set the terminal option defaults to the current value.
9021  * Used after setting the terminal name.
9022  */
9023     void
9024 set_term_defaults()
9025 {
9026     struct vimoption   *p;
9027 
9028     for (p = &options[0]; p->fullname != NULL; p++)
9029     {
9030 	if (istermoption(p) && p->def_val[VI_DEFAULT] != *(char_u **)(p->var))
9031 	{
9032 	    if (p->flags & P_DEF_ALLOCED)
9033 	    {
9034 		free_string_option(p->def_val[VI_DEFAULT]);
9035 		p->flags &= ~P_DEF_ALLOCED;
9036 	    }
9037 	    p->def_val[VI_DEFAULT] = *(char_u **)(p->var);
9038 	    if (p->flags & P_ALLOCED)
9039 	    {
9040 		p->flags |= P_DEF_ALLOCED;
9041 		p->flags &= ~P_ALLOCED;	 /* don't free the value now */
9042 	    }
9043 	}
9044     }
9045 }
9046 
9047 /*
9048  * return TRUE if 'p' starts with 't_'
9049  */
9050     static int
9051 istermoption(p)
9052     struct vimoption *p;
9053 {
9054     return (p->fullname[0] == 't' && p->fullname[1] == '_');
9055 }
9056 
9057 /*
9058  * Compute columns for ruler and shown command. 'sc_col' is also used to
9059  * decide what the maximum length of a message on the status line can be.
9060  * If there is a status line for the last window, 'sc_col' is independent
9061  * of 'ru_col'.
9062  */
9063 
9064 #define COL_RULER 17	    /* columns needed by standard ruler */
9065 
9066     void
9067 comp_col()
9068 {
9069 #if defined(FEAT_CMDL_INFO) && defined(FEAT_WINDOWS)
9070     int last_has_status = (p_ls == 2 || (p_ls == 1 && firstwin != lastwin));
9071 
9072     sc_col = 0;
9073     ru_col = 0;
9074     if (p_ru)
9075     {
9076 #ifdef FEAT_STL_OPT
9077 	ru_col = (ru_wid ? ru_wid : COL_RULER) + 1;
9078 #else
9079 	ru_col = COL_RULER + 1;
9080 #endif
9081 	/* no last status line, adjust sc_col */
9082 	if (!last_has_status)
9083 	    sc_col = ru_col;
9084     }
9085     if (p_sc)
9086     {
9087 	sc_col += SHOWCMD_COLS;
9088 	if (!p_ru || last_has_status)	    /* no need for separating space */
9089 	    ++sc_col;
9090     }
9091     sc_col = Columns - sc_col;
9092     ru_col = Columns - ru_col;
9093     if (sc_col <= 0)		/* screen too narrow, will become a mess */
9094 	sc_col = 1;
9095     if (ru_col <= 0)
9096 	ru_col = 1;
9097 #else
9098     sc_col = Columns;
9099     ru_col = Columns;
9100 #endif
9101 }
9102 
9103 /*
9104  * Get pointer to option variable, depending on local or global scope.
9105  */
9106     static char_u *
9107 get_varp_scope(p, opt_flags)
9108     struct vimoption	*p;
9109     int			opt_flags;
9110 {
9111     if ((opt_flags & OPT_GLOBAL) && p->indir != PV_NONE)
9112     {
9113 	if (p->var == VAR_WIN)
9114 	    return (char_u *)GLOBAL_WO(get_varp(p));
9115 	return p->var;
9116     }
9117     if ((opt_flags & OPT_LOCAL) && ((int)p->indir & PV_BOTH))
9118     {
9119 	switch ((int)p->indir)
9120 	{
9121 #ifdef FEAT_QUICKFIX
9122 	    case PV_EFM:  return (char_u *)&(curbuf->b_p_efm);
9123 	    case PV_GP:   return (char_u *)&(curbuf->b_p_gp);
9124 	    case PV_MP:   return (char_u *)&(curbuf->b_p_mp);
9125 #endif
9126 	    case PV_EP:   return (char_u *)&(curbuf->b_p_ep);
9127 	    case PV_KP:   return (char_u *)&(curbuf->b_p_kp);
9128 	    case PV_PATH: return (char_u *)&(curbuf->b_p_path);
9129 	    case PV_AR:   return (char_u *)&(curbuf->b_p_ar);
9130 	    case PV_TAGS: return (char_u *)&(curbuf->b_p_tags);
9131 #ifdef FEAT_FIND_ID
9132 	    case PV_DEF:  return (char_u *)&(curbuf->b_p_def);
9133 	    case PV_INC:  return (char_u *)&(curbuf->b_p_inc);
9134 #endif
9135 #ifdef FEAT_INS_EXPAND
9136 	    case PV_DICT: return (char_u *)&(curbuf->b_p_dict);
9137 	    case PV_TSR:  return (char_u *)&(curbuf->b_p_tsr);
9138 #endif
9139 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
9140 	    case PV_BEXPR: return (char_u *)&(curbuf->b_p_bexpr);
9141 #endif
9142 #ifdef FEAT_STL_OPT
9143 	    case PV_STL:  return (char_u *)&(curwin->w_p_stl);
9144 #endif
9145 	}
9146 	return NULL; /* "cannot happen" */
9147     }
9148     return get_varp(p);
9149 }
9150 
9151 /*
9152  * Get pointer to option variable.
9153  */
9154     static char_u *
9155 get_varp(p)
9156     struct vimoption	*p;
9157 {
9158     /* hidden option, always return NULL */
9159     if (p->var == NULL)
9160 	return NULL;
9161 
9162     switch ((int)p->indir)
9163     {
9164 	case PV_NONE:	return p->var;
9165 
9166 	/* global option with local value: use local value if it's been set */
9167 	case PV_EP:	return *curbuf->b_p_ep != NUL
9168 				    ? (char_u *)&curbuf->b_p_ep : p->var;
9169 	case PV_KP:	return *curbuf->b_p_kp != NUL
9170 				    ? (char_u *)&curbuf->b_p_kp : p->var;
9171 	case PV_PATH:	return *curbuf->b_p_path != NUL
9172 				    ? (char_u *)&(curbuf->b_p_path) : p->var;
9173 	case PV_AR:	return curbuf->b_p_ar >= 0
9174 				    ? (char_u *)&(curbuf->b_p_ar) : p->var;
9175 	case PV_TAGS:	return *curbuf->b_p_tags != NUL
9176 				    ? (char_u *)&(curbuf->b_p_tags) : p->var;
9177 #ifdef FEAT_FIND_ID
9178 	case PV_DEF:	return *curbuf->b_p_def != NUL
9179 				    ? (char_u *)&(curbuf->b_p_def) : p->var;
9180 	case PV_INC:	return *curbuf->b_p_inc != NUL
9181 				    ? (char_u *)&(curbuf->b_p_inc) : p->var;
9182 #endif
9183 #ifdef FEAT_INS_EXPAND
9184 	case PV_DICT:	return *curbuf->b_p_dict != NUL
9185 				    ? (char_u *)&(curbuf->b_p_dict) : p->var;
9186 	case PV_TSR:	return *curbuf->b_p_tsr != NUL
9187 				    ? (char_u *)&(curbuf->b_p_tsr) : p->var;
9188 #endif
9189 #ifdef FEAT_QUICKFIX
9190 	case PV_EFM:	return *curbuf->b_p_efm != NUL
9191 				    ? (char_u *)&(curbuf->b_p_efm) : p->var;
9192 	case PV_GP:	return *curbuf->b_p_gp != NUL
9193 				    ? (char_u *)&(curbuf->b_p_gp) : p->var;
9194 	case PV_MP:	return *curbuf->b_p_mp != NUL
9195 				    ? (char_u *)&(curbuf->b_p_mp) : p->var;
9196 #endif
9197 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
9198 	case PV_BEXPR:	return *curbuf->b_p_bexpr != NUL
9199 				    ? (char_u *)&(curbuf->b_p_bexpr) : p->var;
9200 #endif
9201 #ifdef FEAT_STL_OPT
9202 	case PV_STL:	return *curwin->w_p_stl != NUL
9203 				    ? (char_u *)&(curwin->w_p_stl) : p->var;
9204 #endif
9205 
9206 #ifdef FEAT_ARABIC
9207 	case PV_ARAB:	return (char_u *)&(curwin->w_p_arab);
9208 #endif
9209 	case PV_LIST:	return (char_u *)&(curwin->w_p_list);
9210 #ifdef FEAT_SPELL
9211 	case PV_SPELL:	return (char_u *)&(curwin->w_p_spell);
9212 #endif
9213 #ifdef FEAT_SYN_HL
9214 	case PV_CUC:	return (char_u *)&(curwin->w_p_cuc);
9215 	case PV_CUL:	return (char_u *)&(curwin->w_p_cul);
9216 #endif
9217 #ifdef FEAT_DIFF
9218 	case PV_DIFF:	return (char_u *)&(curwin->w_p_diff);
9219 #endif
9220 #ifdef FEAT_FOLDING
9221 	case PV_FDC:	return (char_u *)&(curwin->w_p_fdc);
9222 	case PV_FEN:	return (char_u *)&(curwin->w_p_fen);
9223 	case PV_FDI:	return (char_u *)&(curwin->w_p_fdi);
9224 	case PV_FDL:	return (char_u *)&(curwin->w_p_fdl);
9225 	case PV_FDM:	return (char_u *)&(curwin->w_p_fdm);
9226 	case PV_FML:	return (char_u *)&(curwin->w_p_fml);
9227 	case PV_FDN:	return (char_u *)&(curwin->w_p_fdn);
9228 # ifdef FEAT_EVAL
9229 	case PV_FDE:	return (char_u *)&(curwin->w_p_fde);
9230 	case PV_FDT:	return (char_u *)&(curwin->w_p_fdt);
9231 # endif
9232 	case PV_FMR:	return (char_u *)&(curwin->w_p_fmr);
9233 #endif
9234 	case PV_NU:	return (char_u *)&(curwin->w_p_nu);
9235 #ifdef FEAT_LINEBREAK
9236 	case PV_NUW:	return (char_u *)&(curwin->w_p_nuw);
9237 #endif
9238 #ifdef FEAT_WINDOWS
9239 	case PV_WFH:	return (char_u *)&(curwin->w_p_wfh);
9240 #endif
9241 #ifdef FEAT_VERTSPLIT
9242 	case PV_WFW:	return (char_u *)&(curwin->w_p_wfw);
9243 #endif
9244 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
9245 	case PV_PVW:	return (char_u *)&(curwin->w_p_pvw);
9246 #endif
9247 #ifdef FEAT_RIGHTLEFT
9248 	case PV_RL:	return (char_u *)&(curwin->w_p_rl);
9249 	case PV_RLC:	return (char_u *)&(curwin->w_p_rlc);
9250 #endif
9251 	case PV_SCROLL:	return (char_u *)&(curwin->w_p_scr);
9252 	case PV_WRAP:	return (char_u *)&(curwin->w_p_wrap);
9253 #ifdef FEAT_LINEBREAK
9254 	case PV_LBR:	return (char_u *)&(curwin->w_p_lbr);
9255 #endif
9256 #ifdef FEAT_SCROLLBIND
9257 	case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
9258 #endif
9259 
9260 	case PV_AI:	return (char_u *)&(curbuf->b_p_ai);
9261 	case PV_BIN:	return (char_u *)&(curbuf->b_p_bin);
9262 #ifdef FEAT_MBYTE
9263 	case PV_BOMB:	return (char_u *)&(curbuf->b_p_bomb);
9264 #endif
9265 #if defined(FEAT_QUICKFIX)
9266 	case PV_BH:	return (char_u *)&(curbuf->b_p_bh);
9267 	case PV_BT:	return (char_u *)&(curbuf->b_p_bt);
9268 #endif
9269 	case PV_BL:	return (char_u *)&(curbuf->b_p_bl);
9270 	case PV_CI:	return (char_u *)&(curbuf->b_p_ci);
9271 #ifdef FEAT_CINDENT
9272 	case PV_CIN:	return (char_u *)&(curbuf->b_p_cin);
9273 	case PV_CINK:	return (char_u *)&(curbuf->b_p_cink);
9274 	case PV_CINO:	return (char_u *)&(curbuf->b_p_cino);
9275 #endif
9276 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
9277 	case PV_CINW:	return (char_u *)&(curbuf->b_p_cinw);
9278 #endif
9279 #ifdef FEAT_COMMENTS
9280 	case PV_COM:	return (char_u *)&(curbuf->b_p_com);
9281 #endif
9282 #ifdef FEAT_FOLDING
9283 	case PV_CMS:	return (char_u *)&(curbuf->b_p_cms);
9284 #endif
9285 #ifdef FEAT_INS_EXPAND
9286 	case PV_CPT:	return (char_u *)&(curbuf->b_p_cpt);
9287 #endif
9288 #ifdef FEAT_COMPL_FUNC
9289 	case PV_CFU:	return (char_u *)&(curbuf->b_p_cfu);
9290 	case PV_OFU:	return (char_u *)&(curbuf->b_p_ofu);
9291 #endif
9292 	case PV_EOL:	return (char_u *)&(curbuf->b_p_eol);
9293 	case PV_ET:	return (char_u *)&(curbuf->b_p_et);
9294 #ifdef FEAT_MBYTE
9295 	case PV_FENC:	return (char_u *)&(curbuf->b_p_fenc);
9296 #endif
9297 	case PV_FF:	return (char_u *)&(curbuf->b_p_ff);
9298 #ifdef FEAT_AUTOCMD
9299 	case PV_FT:	return (char_u *)&(curbuf->b_p_ft);
9300 #endif
9301 	case PV_FO:	return (char_u *)&(curbuf->b_p_fo);
9302 	case PV_FLP:	return (char_u *)&(curbuf->b_p_flp);
9303 	case PV_IMI:	return (char_u *)&(curbuf->b_p_iminsert);
9304 	case PV_IMS:	return (char_u *)&(curbuf->b_p_imsearch);
9305 	case PV_INF:	return (char_u *)&(curbuf->b_p_inf);
9306 	case PV_ISK:	return (char_u *)&(curbuf->b_p_isk);
9307 #ifdef FEAT_FIND_ID
9308 # ifdef FEAT_EVAL
9309 	case PV_INEX:	return (char_u *)&(curbuf->b_p_inex);
9310 # endif
9311 #endif
9312 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
9313 	case PV_INDE:	return (char_u *)&(curbuf->b_p_inde);
9314 	case PV_INDK:	return (char_u *)&(curbuf->b_p_indk);
9315 #endif
9316 #ifdef FEAT_EVAL
9317 	case PV_FEX:	return (char_u *)&(curbuf->b_p_fex);
9318 #endif
9319 #ifdef FEAT_CRYPT
9320 	case PV_KEY:	return (char_u *)&(curbuf->b_p_key);
9321 #endif
9322 #ifdef FEAT_LISP
9323 	case PV_LISP:	return (char_u *)&(curbuf->b_p_lisp);
9324 #endif
9325 	case PV_ML:	return (char_u *)&(curbuf->b_p_ml);
9326 	case PV_MPS:	return (char_u *)&(curbuf->b_p_mps);
9327 	case PV_MA:	return (char_u *)&(curbuf->b_p_ma);
9328 	case PV_MOD:	return (char_u *)&(curbuf->b_changed);
9329 	case PV_NF:	return (char_u *)&(curbuf->b_p_nf);
9330 #ifdef FEAT_OSFILETYPE
9331 	case PV_OFT:	return (char_u *)&(curbuf->b_p_oft);
9332 #endif
9333 	case PV_PI:	return (char_u *)&(curbuf->b_p_pi);
9334 #ifdef FEAT_TEXTOBJ
9335 	case PV_QE:	return (char_u *)&(curbuf->b_p_qe);
9336 #endif
9337 	case PV_RO:	return (char_u *)&(curbuf->b_p_ro);
9338 #ifdef FEAT_SMARTINDENT
9339 	case PV_SI:	return (char_u *)&(curbuf->b_p_si);
9340 #endif
9341 #ifndef SHORT_FNAME
9342 	case PV_SN:	return (char_u *)&(curbuf->b_p_sn);
9343 #endif
9344 	case PV_STS:	return (char_u *)&(curbuf->b_p_sts);
9345 #ifdef FEAT_SEARCHPATH
9346 	case PV_SUA:	return (char_u *)&(curbuf->b_p_sua);
9347 #endif
9348 	case PV_SWF:	return (char_u *)&(curbuf->b_p_swf);
9349 #ifdef FEAT_SYN_HL
9350 	case PV_SMC:	return (char_u *)&(curbuf->b_p_smc);
9351 	case PV_SYN:	return (char_u *)&(curbuf->b_p_syn);
9352 #endif
9353 #ifdef FEAT_SPELL
9354 	case PV_SPC:	return (char_u *)&(curbuf->b_p_spc);
9355 	case PV_SPF:	return (char_u *)&(curbuf->b_p_spf);
9356 	case PV_SPL:	return (char_u *)&(curbuf->b_p_spl);
9357 #endif
9358 	case PV_SW:	return (char_u *)&(curbuf->b_p_sw);
9359 	case PV_TS:	return (char_u *)&(curbuf->b_p_ts);
9360 	case PV_TW:	return (char_u *)&(curbuf->b_p_tw);
9361 	case PV_TX:	return (char_u *)&(curbuf->b_p_tx);
9362 	case PV_WM:	return (char_u *)&(curbuf->b_p_wm);
9363 #ifdef FEAT_KEYMAP
9364 	case PV_KMAP:	return (char_u *)&(curbuf->b_p_keymap);
9365 #endif
9366 	default:	EMSG(_("E356: get_varp ERROR"));
9367     }
9368     /* always return a valid pointer to avoid a crash! */
9369     return (char_u *)&(curbuf->b_p_wm);
9370 }
9371 
9372 /*
9373  * Get the value of 'equalprg', either the buffer-local one or the global one.
9374  */
9375     char_u *
9376 get_equalprg()
9377 {
9378     if (*curbuf->b_p_ep == NUL)
9379 	return p_ep;
9380     return curbuf->b_p_ep;
9381 }
9382 
9383 #if defined(FEAT_WINDOWS) || defined(PROTO)
9384 /*
9385  * Copy options from one window to another.
9386  * Used when splitting a window.
9387  */
9388     void
9389 win_copy_options(wp_from, wp_to)
9390     win_T	*wp_from;
9391     win_T	*wp_to;
9392 {
9393     copy_winopt(&wp_from->w_onebuf_opt, &wp_to->w_onebuf_opt);
9394     copy_winopt(&wp_from->w_allbuf_opt, &wp_to->w_allbuf_opt);
9395 # ifdef FEAT_RIGHTLEFT
9396 #  ifdef FEAT_FKMAP
9397     /* Is this right? */
9398     wp_to->w_farsi = wp_from->w_farsi;
9399 #  endif
9400 # endif
9401 }
9402 #endif
9403 
9404 /*
9405  * Copy the options from one winopt_T to another.
9406  * Doesn't free the old option values in "to", use clear_winopt() for that.
9407  * The 'scroll' option is not copied, because it depends on the window height.
9408  * The 'previewwindow' option is reset, there can be only one preview window.
9409  */
9410     void
9411 copy_winopt(from, to)
9412     winopt_T	*from;
9413     winopt_T	*to;
9414 {
9415 #ifdef FEAT_ARABIC
9416     to->wo_arab = from->wo_arab;
9417 #endif
9418     to->wo_list = from->wo_list;
9419     to->wo_nu = from->wo_nu;
9420 #ifdef FEAT_LINEBREAK
9421     to->wo_nuw = from->wo_nuw;
9422 #endif
9423 #ifdef FEAT_RIGHTLEFT
9424     to->wo_rl  = from->wo_rl;
9425     to->wo_rlc = vim_strsave(from->wo_rlc);
9426 #endif
9427 #ifdef FEAT_STL_OPT
9428     to->wo_stl = vim_strsave(from->wo_stl);
9429 #endif
9430     to->wo_wrap = from->wo_wrap;
9431 #ifdef FEAT_LINEBREAK
9432     to->wo_lbr = from->wo_lbr;
9433 #endif
9434 #ifdef FEAT_SCROLLBIND
9435     to->wo_scb = from->wo_scb;
9436 #endif
9437 #ifdef FEAT_SPELL
9438     to->wo_spell = from->wo_spell;
9439 #endif
9440 #ifdef FEAT_SYN_HL
9441     to->wo_cuc = from->wo_cuc;
9442     to->wo_cul = from->wo_cul;
9443 #endif
9444 #ifdef FEAT_DIFF
9445     to->wo_diff = from->wo_diff;
9446 #endif
9447 #ifdef FEAT_FOLDING
9448     to->wo_fdc = from->wo_fdc;
9449     to->wo_fen = from->wo_fen;
9450     to->wo_fdi = vim_strsave(from->wo_fdi);
9451     to->wo_fml = from->wo_fml;
9452     to->wo_fdl = from->wo_fdl;
9453     to->wo_fdm = vim_strsave(from->wo_fdm);
9454     to->wo_fdn = from->wo_fdn;
9455 # ifdef FEAT_EVAL
9456     to->wo_fde = vim_strsave(from->wo_fde);
9457     to->wo_fdt = vim_strsave(from->wo_fdt);
9458 # endif
9459     to->wo_fmr = vim_strsave(from->wo_fmr);
9460 #endif
9461     check_winopt(to);		/* don't want NULL pointers */
9462 }
9463 
9464 /*
9465  * Check string options in a window for a NULL value.
9466  */
9467     void
9468 check_win_options(win)
9469     win_T	*win;
9470 {
9471     check_winopt(&win->w_onebuf_opt);
9472     check_winopt(&win->w_allbuf_opt);
9473 }
9474 
9475 /*
9476  * Check for NULL pointers in a winopt_T and replace them with empty_option.
9477  */
9478     void
9479 check_winopt(wop)
9480     winopt_T	*wop UNUSED;
9481 {
9482 #ifdef FEAT_FOLDING
9483     check_string_option(&wop->wo_fdi);
9484     check_string_option(&wop->wo_fdm);
9485 # ifdef FEAT_EVAL
9486     check_string_option(&wop->wo_fde);
9487     check_string_option(&wop->wo_fdt);
9488 # endif
9489     check_string_option(&wop->wo_fmr);
9490 #endif
9491 #ifdef FEAT_RIGHTLEFT
9492     check_string_option(&wop->wo_rlc);
9493 #endif
9494 #ifdef FEAT_STL_OPT
9495     check_string_option(&wop->wo_stl);
9496 #endif
9497 }
9498 
9499 /*
9500  * Free the allocated memory inside a winopt_T.
9501  */
9502     void
9503 clear_winopt(wop)
9504     winopt_T	*wop UNUSED;
9505 {
9506 #ifdef FEAT_FOLDING
9507     clear_string_option(&wop->wo_fdi);
9508     clear_string_option(&wop->wo_fdm);
9509 # ifdef FEAT_EVAL
9510     clear_string_option(&wop->wo_fde);
9511     clear_string_option(&wop->wo_fdt);
9512 # endif
9513     clear_string_option(&wop->wo_fmr);
9514 #endif
9515 #ifdef FEAT_RIGHTLEFT
9516     clear_string_option(&wop->wo_rlc);
9517 #endif
9518 #ifdef FEAT_STL_OPT
9519     clear_string_option(&wop->wo_stl);
9520 #endif
9521 }
9522 
9523 /*
9524  * Copy global option values to local options for one buffer.
9525  * Used when creating a new buffer and sometimes when entering a buffer.
9526  * flags:
9527  * BCO_ENTER	We will enter the buf buffer.
9528  * BCO_ALWAYS	Always copy the options, but only set b_p_initialized when
9529  *		appropriate.
9530  * BCO_NOHELP	Don't copy the values to a help buffer.
9531  */
9532     void
9533 buf_copy_options(buf, flags)
9534     buf_T	*buf;
9535     int		flags;
9536 {
9537     int		should_copy = TRUE;
9538     char_u	*save_p_isk = NULL;	    /* init for GCC */
9539     int		dont_do_help;
9540     int		did_isk = FALSE;
9541 
9542     /*
9543      * Don't do anything of the buffer is invalid.
9544      */
9545     if (buf == NULL || !buf_valid(buf))
9546 	return;
9547 
9548     /*
9549      * Skip this when the option defaults have not been set yet.  Happens when
9550      * main() allocates the first buffer.
9551      */
9552     if (p_cpo != NULL)
9553     {
9554 	/*
9555 	 * Always copy when entering and 'cpo' contains 'S'.
9556 	 * Don't copy when already initialized.
9557 	 * Don't copy when 'cpo' contains 's' and not entering.
9558 	 * 'S'	BCO_ENTER  initialized	's'  should_copy
9559 	 * yes	  yes	       X	 X	TRUE
9560 	 * yes	  no	      yes	 X	FALSE
9561 	 * no	   X	      yes	 X	FALSE
9562 	 *  X	  no	      no	yes	FALSE
9563 	 *  X	  no	      no	no	TRUE
9564 	 * no	  yes	      no	 X	TRUE
9565 	 */
9566 	if ((vim_strchr(p_cpo, CPO_BUFOPTGLOB) == NULL || !(flags & BCO_ENTER))
9567 		&& (buf->b_p_initialized
9568 		    || (!(flags & BCO_ENTER)
9569 			&& vim_strchr(p_cpo, CPO_BUFOPT) != NULL)))
9570 	    should_copy = FALSE;
9571 
9572 	if (should_copy || (flags & BCO_ALWAYS))
9573 	{
9574 	    /* Don't copy the options specific to a help buffer when
9575 	     * BCO_NOHELP is given or the options were initialized already
9576 	     * (jumping back to a help file with CTRL-T or CTRL-O) */
9577 	    dont_do_help = ((flags & BCO_NOHELP) && buf->b_help)
9578 						       || buf->b_p_initialized;
9579 	    if (dont_do_help)		/* don't free b_p_isk */
9580 	    {
9581 		save_p_isk = buf->b_p_isk;
9582 		buf->b_p_isk = NULL;
9583 	    }
9584 	    /*
9585 	     * Always free the allocated strings.
9586 	     * If not already initialized, set 'readonly' and copy 'fileformat'.
9587 	     */
9588 	    if (!buf->b_p_initialized)
9589 	    {
9590 		free_buf_options(buf, TRUE);
9591 		buf->b_p_ro = FALSE;		/* don't copy readonly */
9592 		buf->b_p_tx = p_tx;
9593 #ifdef FEAT_MBYTE
9594 		buf->b_p_fenc = vim_strsave(p_fenc);
9595 #endif
9596 		buf->b_p_ff = vim_strsave(p_ff);
9597 #if defined(FEAT_QUICKFIX)
9598 		buf->b_p_bh = empty_option;
9599 		buf->b_p_bt = empty_option;
9600 #endif
9601 	    }
9602 	    else
9603 		free_buf_options(buf, FALSE);
9604 
9605 	    buf->b_p_ai = p_ai;
9606 	    buf->b_p_ai_nopaste = p_ai_nopaste;
9607 	    buf->b_p_sw = p_sw;
9608 	    buf->b_p_tw = p_tw;
9609 	    buf->b_p_tw_nopaste = p_tw_nopaste;
9610 	    buf->b_p_tw_nobin = p_tw_nobin;
9611 	    buf->b_p_wm = p_wm;
9612 	    buf->b_p_wm_nopaste = p_wm_nopaste;
9613 	    buf->b_p_wm_nobin = p_wm_nobin;
9614 	    buf->b_p_bin = p_bin;
9615 #ifdef FEAT_MBYTE
9616 	    buf->b_p_bomb = p_bomb;
9617 #endif
9618 	    buf->b_p_et = p_et;
9619 	    buf->b_p_et_nobin = p_et_nobin;
9620 	    buf->b_p_ml = p_ml;
9621 	    buf->b_p_ml_nobin = p_ml_nobin;
9622 	    buf->b_p_inf = p_inf;
9623 	    buf->b_p_swf = p_swf;
9624 #ifdef FEAT_INS_EXPAND
9625 	    buf->b_p_cpt = vim_strsave(p_cpt);
9626 #endif
9627 #ifdef FEAT_COMPL_FUNC
9628 	    buf->b_p_cfu = vim_strsave(p_cfu);
9629 	    buf->b_p_ofu = vim_strsave(p_ofu);
9630 #endif
9631 	    buf->b_p_sts = p_sts;
9632 	    buf->b_p_sts_nopaste = p_sts_nopaste;
9633 #ifndef SHORT_FNAME
9634 	    buf->b_p_sn = p_sn;
9635 #endif
9636 #ifdef FEAT_COMMENTS
9637 	    buf->b_p_com = vim_strsave(p_com);
9638 #endif
9639 #ifdef FEAT_FOLDING
9640 	    buf->b_p_cms = vim_strsave(p_cms);
9641 #endif
9642 	    buf->b_p_fo = vim_strsave(p_fo);
9643 	    buf->b_p_flp = vim_strsave(p_flp);
9644 	    buf->b_p_nf = vim_strsave(p_nf);
9645 	    buf->b_p_mps = vim_strsave(p_mps);
9646 #ifdef FEAT_SMARTINDENT
9647 	    buf->b_p_si = p_si;
9648 #endif
9649 	    buf->b_p_ci = p_ci;
9650 #ifdef FEAT_CINDENT
9651 	    buf->b_p_cin = p_cin;
9652 	    buf->b_p_cink = vim_strsave(p_cink);
9653 	    buf->b_p_cino = vim_strsave(p_cino);
9654 #endif
9655 #ifdef FEAT_AUTOCMD
9656 	    /* Don't copy 'filetype', it must be detected */
9657 	    buf->b_p_ft = empty_option;
9658 #endif
9659 #ifdef FEAT_OSFILETYPE
9660 	    buf->b_p_oft = vim_strsave(p_oft);
9661 #endif
9662 	    buf->b_p_pi = p_pi;
9663 #if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
9664 	    buf->b_p_cinw = vim_strsave(p_cinw);
9665 #endif
9666 #ifdef FEAT_LISP
9667 	    buf->b_p_lisp = p_lisp;
9668 #endif
9669 #ifdef FEAT_SYN_HL
9670 	    /* Don't copy 'syntax', it must be set */
9671 	    buf->b_p_syn = empty_option;
9672 	    buf->b_p_smc = p_smc;
9673 #endif
9674 #ifdef FEAT_SPELL
9675 	    buf->b_p_spc = vim_strsave(p_spc);
9676 	    (void)compile_cap_prog(buf);
9677 	    buf->b_p_spf = vim_strsave(p_spf);
9678 	    buf->b_p_spl = vim_strsave(p_spl);
9679 #endif
9680 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
9681 	    buf->b_p_inde = vim_strsave(p_inde);
9682 	    buf->b_p_indk = vim_strsave(p_indk);
9683 #endif
9684 #if defined(FEAT_EVAL)
9685 	    buf->b_p_fex = vim_strsave(p_fex);
9686 #endif
9687 #ifdef FEAT_CRYPT
9688 	    buf->b_p_key = vim_strsave(p_key);
9689 #endif
9690 #ifdef FEAT_SEARCHPATH
9691 	    buf->b_p_sua = vim_strsave(p_sua);
9692 #endif
9693 #ifdef FEAT_KEYMAP
9694 	    buf->b_p_keymap = vim_strsave(p_keymap);
9695 	    buf->b_kmap_state |= KEYMAP_INIT;
9696 #endif
9697 	    /* This isn't really an option, but copying the langmap and IME
9698 	     * state from the current buffer is better than resetting it. */
9699 	    buf->b_p_iminsert = p_iminsert;
9700 	    buf->b_p_imsearch = p_imsearch;
9701 
9702 	    /* options that are normally global but also have a local value
9703 	     * are not copied, start using the global value */
9704 	    buf->b_p_ar = -1;
9705 #ifdef FEAT_QUICKFIX
9706 	    buf->b_p_gp = empty_option;
9707 	    buf->b_p_mp = empty_option;
9708 	    buf->b_p_efm = empty_option;
9709 #endif
9710 	    buf->b_p_ep = empty_option;
9711 	    buf->b_p_kp = empty_option;
9712 	    buf->b_p_path = empty_option;
9713 	    buf->b_p_tags = empty_option;
9714 #ifdef FEAT_FIND_ID
9715 	    buf->b_p_def = empty_option;
9716 	    buf->b_p_inc = empty_option;
9717 # ifdef FEAT_EVAL
9718 	    buf->b_p_inex = vim_strsave(p_inex);
9719 # endif
9720 #endif
9721 #ifdef FEAT_INS_EXPAND
9722 	    buf->b_p_dict = empty_option;
9723 	    buf->b_p_tsr = empty_option;
9724 #endif
9725 #ifdef FEAT_TEXTOBJ
9726 	    buf->b_p_qe = vim_strsave(p_qe);
9727 #endif
9728 #if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
9729 	    buf->b_p_bexpr = empty_option;
9730 #endif
9731 
9732 	    /*
9733 	     * Don't copy the options set by ex_help(), use the saved values,
9734 	     * when going from a help buffer to a non-help buffer.
9735 	     * Don't touch these at all when BCO_NOHELP is used and going from
9736 	     * or to a help buffer.
9737 	     */
9738 	    if (dont_do_help)
9739 		buf->b_p_isk = save_p_isk;
9740 	    else
9741 	    {
9742 		buf->b_p_isk = vim_strsave(p_isk);
9743 		did_isk = TRUE;
9744 		buf->b_p_ts = p_ts;
9745 		buf->b_help = FALSE;
9746 #ifdef FEAT_QUICKFIX
9747 		if (buf->b_p_bt[0] == 'h')
9748 		    clear_string_option(&buf->b_p_bt);
9749 #endif
9750 		buf->b_p_ma = p_ma;
9751 	    }
9752 	}
9753 
9754 	/*
9755 	 * When the options should be copied (ignoring BCO_ALWAYS), set the
9756 	 * flag that indicates that the options have been initialized.
9757 	 */
9758 	if (should_copy)
9759 	    buf->b_p_initialized = TRUE;
9760     }
9761 
9762     check_buf_options(buf);	    /* make sure we don't have NULLs */
9763     if (did_isk)
9764 	(void)buf_init_chartab(buf, FALSE);
9765 }
9766 
9767 /*
9768  * Reset the 'modifiable' option and its default value.
9769  */
9770     void
9771 reset_modifiable()
9772 {
9773     int		opt_idx;
9774 
9775     curbuf->b_p_ma = FALSE;
9776     p_ma = FALSE;
9777     opt_idx = findoption((char_u *)"ma");
9778     if (opt_idx >= 0)
9779 	options[opt_idx].def_val[VI_DEFAULT] = FALSE;
9780 }
9781 
9782 /*
9783  * Set the global value for 'iminsert' to the local value.
9784  */
9785     void
9786 set_iminsert_global()
9787 {
9788     p_iminsert = curbuf->b_p_iminsert;
9789 }
9790 
9791 /*
9792  * Set the global value for 'imsearch' to the local value.
9793  */
9794     void
9795 set_imsearch_global()
9796 {
9797     p_imsearch = curbuf->b_p_imsearch;
9798 }
9799 
9800 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
9801 static int expand_option_idx = -1;
9802 static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL};
9803 static int expand_option_flags = 0;
9804 
9805     void
9806 set_context_in_set_cmd(xp, arg, opt_flags)
9807     expand_T	*xp;
9808     char_u	*arg;
9809     int		opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
9810 {
9811     int		nextchar;
9812     long_u	flags = 0;	/* init for GCC */
9813     int		opt_idx = 0;	/* init for GCC */
9814     char_u	*p;
9815     char_u	*s;
9816     int		is_term_option = FALSE;
9817     int		key;
9818 
9819     expand_option_flags = opt_flags;
9820 
9821     xp->xp_context = EXPAND_SETTINGS;
9822     if (*arg == NUL)
9823     {
9824 	xp->xp_pattern = arg;
9825 	return;
9826     }
9827     p = arg + STRLEN(arg) - 1;
9828     if (*p == ' ' && *(p - 1) != '\\')
9829     {
9830 	xp->xp_pattern = p + 1;
9831 	return;
9832     }
9833     while (p > arg)
9834     {
9835 	s = p;
9836 	/* count number of backslashes before ' ' or ',' */
9837 	if (*p == ' ' || *p == ',')
9838 	{
9839 	    while (s > arg && *(s - 1) == '\\')
9840 		--s;
9841 	}
9842 	/* break at a space with an even number of backslashes */
9843 	if (*p == ' ' && ((p - s) & 1) == 0)
9844 	{
9845 	    ++p;
9846 	    break;
9847 	}
9848 	--p;
9849     }
9850     if (STRNCMP(p, "no", 2) == 0 && STRNCMP(p, "novice", 6) != 0)
9851     {
9852 	xp->xp_context = EXPAND_BOOL_SETTINGS;
9853 	p += 2;
9854     }
9855     if (STRNCMP(p, "inv", 3) == 0)
9856     {
9857 	xp->xp_context = EXPAND_BOOL_SETTINGS;
9858 	p += 3;
9859     }
9860     xp->xp_pattern = arg = p;
9861     if (*arg == '<')
9862     {
9863 	while (*p != '>')
9864 	    if (*p++ == NUL)	    /* expand terminal option name */
9865 		return;
9866 	key = get_special_key_code(arg + 1);
9867 	if (key == 0)		    /* unknown name */
9868 	{
9869 	    xp->xp_context = EXPAND_NOTHING;
9870 	    return;
9871 	}
9872 	nextchar = *++p;
9873 	is_term_option = TRUE;
9874 	expand_option_name[2] = KEY2TERMCAP0(key);
9875 	expand_option_name[3] = KEY2TERMCAP1(key);
9876     }
9877     else
9878     {
9879 	if (p[0] == 't' && p[1] == '_')
9880 	{
9881 	    p += 2;
9882 	    if (*p != NUL)
9883 		++p;
9884 	    if (*p == NUL)
9885 		return;		/* expand option name */
9886 	    nextchar = *++p;
9887 	    is_term_option = TRUE;
9888 	    expand_option_name[2] = p[-2];
9889 	    expand_option_name[3] = p[-1];
9890 	}
9891 	else
9892 	{
9893 		/* Allow * wildcard */
9894 	    while (ASCII_ISALNUM(*p) || *p == '_' || *p == '*')
9895 		p++;
9896 	    if (*p == NUL)
9897 		return;
9898 	    nextchar = *p;
9899 	    *p = NUL;
9900 	    opt_idx = findoption(arg);
9901 	    *p = nextchar;
9902 	    if (opt_idx == -1 || options[opt_idx].var == NULL)
9903 	    {
9904 		xp->xp_context = EXPAND_NOTHING;
9905 		return;
9906 	    }
9907 	    flags = options[opt_idx].flags;
9908 	    if (flags & P_BOOL)
9909 	    {
9910 		xp->xp_context = EXPAND_NOTHING;
9911 		return;
9912 	    }
9913 	}
9914     }
9915     /* handle "-=" and "+=" */
9916     if ((nextchar == '-' || nextchar == '+' || nextchar == '^') && p[1] == '=')
9917     {
9918 	++p;
9919 	nextchar = '=';
9920     }
9921     if ((nextchar != '=' && nextchar != ':')
9922 				    || xp->xp_context == EXPAND_BOOL_SETTINGS)
9923     {
9924 	xp->xp_context = EXPAND_UNSUCCESSFUL;
9925 	return;
9926     }
9927     if (xp->xp_context != EXPAND_BOOL_SETTINGS && p[1] == NUL)
9928     {
9929 	xp->xp_context = EXPAND_OLD_SETTING;
9930 	if (is_term_option)
9931 	    expand_option_idx = -1;
9932 	else
9933 	    expand_option_idx = opt_idx;
9934 	xp->xp_pattern = p + 1;
9935 	return;
9936     }
9937     xp->xp_context = EXPAND_NOTHING;
9938     if (is_term_option || (flags & P_NUM))
9939 	return;
9940 
9941     xp->xp_pattern = p + 1;
9942 
9943     if (flags & P_EXPAND)
9944     {
9945 	p = options[opt_idx].var;
9946 	if (p == (char_u *)&p_bdir
9947 		|| p == (char_u *)&p_dir
9948 		|| p == (char_u *)&p_path
9949 		|| p == (char_u *)&p_rtp
9950 #ifdef FEAT_SEARCHPATH
9951 		|| p == (char_u *)&p_cdpath
9952 #endif
9953 #ifdef FEAT_SESSION
9954 		|| p == (char_u *)&p_vdir
9955 #endif
9956 		)
9957 	{
9958 	    xp->xp_context = EXPAND_DIRECTORIES;
9959 	    if (p == (char_u *)&p_path
9960 #ifdef FEAT_SEARCHPATH
9961 		    || p == (char_u *)&p_cdpath
9962 #endif
9963 		   )
9964 		xp->xp_backslash = XP_BS_THREE;
9965 	    else
9966 		xp->xp_backslash = XP_BS_ONE;
9967 	}
9968 	else
9969 	{
9970 	    xp->xp_context = EXPAND_FILES;
9971 	    /* for 'tags' need three backslashes for a space */
9972 	    if (p == (char_u *)&p_tags)
9973 		xp->xp_backslash = XP_BS_THREE;
9974 	    else
9975 		xp->xp_backslash = XP_BS_ONE;
9976 	}
9977     }
9978 
9979     /* For an option that is a list of file names, find the start of the
9980      * last file name. */
9981     for (p = arg + STRLEN(arg) - 1; p > xp->xp_pattern; --p)
9982     {
9983 	/* count number of backslashes before ' ' or ',' */
9984 	if (*p == ' ' || *p == ',')
9985 	{
9986 	    s = p;
9987 	    while (s > xp->xp_pattern && *(s - 1) == '\\')
9988 		--s;
9989 	    if ((*p == ' ' && (xp->xp_backslash == XP_BS_THREE && (p - s) < 3))
9990 		    || (*p == ',' && (flags & P_COMMA) && ((p - s) & 1) == 0))
9991 	    {
9992 		xp->xp_pattern = p + 1;
9993 		break;
9994 	    }
9995 	}
9996 
9997 #ifdef FEAT_SPELL
9998 	/* for 'spellsuggest' start at "file:" */
9999 	if (options[opt_idx].var == (char_u *)&p_sps
10000 					       && STRNCMP(p, "file:", 5) == 0)
10001 	{
10002 	    xp->xp_pattern = p + 5;
10003 	    break;
10004 	}
10005 #endif
10006     }
10007 
10008     return;
10009 }
10010 
10011     int
10012 ExpandSettings(xp, regmatch, num_file, file)
10013     expand_T	*xp;
10014     regmatch_T	*regmatch;
10015     int		*num_file;
10016     char_u	***file;
10017 {
10018     int		num_normal = 0;	    /* Nr of matching non-term-code settings */
10019     int		num_term = 0;	    /* Nr of matching terminal code settings */
10020     int		opt_idx;
10021     int		match;
10022     int		count = 0;
10023     char_u	*str;
10024     int		loop;
10025     int		is_term_opt;
10026     char_u	name_buf[MAX_KEY_NAME_LEN];
10027     static char *(names[]) = {"all", "termcap"};
10028     int		ic = regmatch->rm_ic;	/* remember the ignore-case flag */
10029 
10030     /* do this loop twice:
10031      * loop == 0: count the number of matching options
10032      * loop == 1: copy the matching options into allocated memory
10033      */
10034     for (loop = 0; loop <= 1; ++loop)
10035     {
10036 	regmatch->rm_ic = ic;
10037 	if (xp->xp_context != EXPAND_BOOL_SETTINGS)
10038 	{
10039 	    for (match = 0; match < (int)(sizeof(names) / sizeof(char *));
10040 								      ++match)
10041 		if (vim_regexec(regmatch, (char_u *)names[match], (colnr_T)0))
10042 		{
10043 		    if (loop == 0)
10044 			num_normal++;
10045 		    else
10046 			(*file)[count++] = vim_strsave((char_u *)names[match]);
10047 		}
10048 	}
10049 	for (opt_idx = 0; (str = (char_u *)options[opt_idx].fullname) != NULL;
10050 								    opt_idx++)
10051 	{
10052 	    if (options[opt_idx].var == NULL)
10053 		continue;
10054 	    if (xp->xp_context == EXPAND_BOOL_SETTINGS
10055 	      && !(options[opt_idx].flags & P_BOOL))
10056 		continue;
10057 	    is_term_opt = istermoption(&options[opt_idx]);
10058 	    if (is_term_opt && num_normal > 0)
10059 		continue;
10060 	    match = FALSE;
10061 	    if (vim_regexec(regmatch, str, (colnr_T)0)
10062 		    || (options[opt_idx].shortname != NULL
10063 			&& vim_regexec(regmatch,
10064 			   (char_u *)options[opt_idx].shortname, (colnr_T)0)))
10065 		match = TRUE;
10066 	    else if (is_term_opt)
10067 	    {
10068 		name_buf[0] = '<';
10069 		name_buf[1] = 't';
10070 		name_buf[2] = '_';
10071 		name_buf[3] = str[2];
10072 		name_buf[4] = str[3];
10073 		name_buf[5] = '>';
10074 		name_buf[6] = NUL;
10075 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
10076 		{
10077 		    match = TRUE;
10078 		    str = name_buf;
10079 		}
10080 	    }
10081 	    if (match)
10082 	    {
10083 		if (loop == 0)
10084 		{
10085 		    if (is_term_opt)
10086 			num_term++;
10087 		    else
10088 			num_normal++;
10089 		}
10090 		else
10091 		    (*file)[count++] = vim_strsave(str);
10092 	    }
10093 	}
10094 	/*
10095 	 * Check terminal key codes, these are not in the option table
10096 	 */
10097 	if (xp->xp_context != EXPAND_BOOL_SETTINGS  && num_normal == 0)
10098 	{
10099 	    for (opt_idx = 0; (str = get_termcode(opt_idx)) != NULL; opt_idx++)
10100 	    {
10101 		if (!isprint(str[0]) || !isprint(str[1]))
10102 		    continue;
10103 
10104 		name_buf[0] = 't';
10105 		name_buf[1] = '_';
10106 		name_buf[2] = str[0];
10107 		name_buf[3] = str[1];
10108 		name_buf[4] = NUL;
10109 
10110 		match = FALSE;
10111 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
10112 		    match = TRUE;
10113 		else
10114 		{
10115 		    name_buf[0] = '<';
10116 		    name_buf[1] = 't';
10117 		    name_buf[2] = '_';
10118 		    name_buf[3] = str[0];
10119 		    name_buf[4] = str[1];
10120 		    name_buf[5] = '>';
10121 		    name_buf[6] = NUL;
10122 
10123 		    if (vim_regexec(regmatch, name_buf, (colnr_T)0))
10124 			match = TRUE;
10125 		}
10126 		if (match)
10127 		{
10128 		    if (loop == 0)
10129 			num_term++;
10130 		    else
10131 			(*file)[count++] = vim_strsave(name_buf);
10132 		}
10133 	    }
10134 
10135 	    /*
10136 	     * Check special key names.
10137 	     */
10138 	    regmatch->rm_ic = TRUE;		/* ignore case here */
10139 	    for (opt_idx = 0; (str = get_key_name(opt_idx)) != NULL; opt_idx++)
10140 	    {
10141 		name_buf[0] = '<';
10142 		STRCPY(name_buf + 1, str);
10143 		STRCAT(name_buf, ">");
10144 
10145 		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
10146 		{
10147 		    if (loop == 0)
10148 			num_term++;
10149 		    else
10150 			(*file)[count++] = vim_strsave(name_buf);
10151 		}
10152 	    }
10153 	}
10154 	if (loop == 0)
10155 	{
10156 	    if (num_normal > 0)
10157 		*num_file = num_normal;
10158 	    else if (num_term > 0)
10159 		*num_file = num_term;
10160 	    else
10161 		return OK;
10162 	    *file = (char_u **)alloc((unsigned)(*num_file * sizeof(char_u *)));
10163 	    if (*file == NULL)
10164 	    {
10165 		*file = (char_u **)"";
10166 		return FAIL;
10167 	    }
10168 	}
10169     }
10170     return OK;
10171 }
10172 
10173     int
10174 ExpandOldSetting(num_file, file)
10175     int	    *num_file;
10176     char_u  ***file;
10177 {
10178     char_u  *var = NULL;	/* init for GCC */
10179     char_u  *buf;
10180 
10181     *num_file = 0;
10182     *file = (char_u **)alloc((unsigned)sizeof(char_u *));
10183     if (*file == NULL)
10184 	return FAIL;
10185 
10186     /*
10187      * For a terminal key code expand_option_idx is < 0.
10188      */
10189     if (expand_option_idx < 0)
10190     {
10191 	var = find_termcode(expand_option_name + 2);
10192 	if (var == NULL)
10193 	    expand_option_idx = findoption(expand_option_name);
10194     }
10195 
10196     if (expand_option_idx >= 0)
10197     {
10198 	/* put string of option value in NameBuff */
10199 	option_value2string(&options[expand_option_idx], expand_option_flags);
10200 	var = NameBuff;
10201     }
10202     else if (var == NULL)
10203 	var = (char_u *)"";
10204 
10205     /* A backslash is required before some characters.  This is the reverse of
10206      * what happens in do_set(). */
10207     buf = vim_strsave_escaped(var, escape_chars);
10208 
10209     if (buf == NULL)
10210     {
10211 	vim_free(*file);
10212 	*file = NULL;
10213 	return FAIL;
10214     }
10215 
10216 #ifdef BACKSLASH_IN_FILENAME
10217     /* For MS-Windows et al. we don't double backslashes at the start and
10218      * before a file name character. */
10219     for (var = buf; *var != NUL; mb_ptr_adv(var))
10220 	if (var[0] == '\\' && var[1] == '\\'
10221 		&& expand_option_idx >= 0
10222 		&& (options[expand_option_idx].flags & P_EXPAND)
10223 		&& vim_isfilec(var[2])
10224 		&& (var[2] != '\\' || (var == buf && var[4] != '\\')))
10225 	    STRMOVE(var, var + 1);
10226 #endif
10227 
10228     *file[0] = buf;
10229     *num_file = 1;
10230     return OK;
10231 }
10232 #endif
10233 
10234 /*
10235  * Get the value for the numeric or string option *opp in a nice format into
10236  * NameBuff[].  Must not be called with a hidden option!
10237  */
10238     static void
10239 option_value2string(opp, opt_flags)
10240     struct vimoption	*opp;
10241     int			opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
10242 {
10243     char_u	*varp;
10244 
10245     varp = get_varp_scope(opp, opt_flags);
10246 
10247     if (opp->flags & P_NUM)
10248     {
10249 	long wc = 0;
10250 
10251 	if (wc_use_keyname(varp, &wc))
10252 	    STRCPY(NameBuff, get_special_key_name((int)wc, 0));
10253 	else if (wc != 0)
10254 	    STRCPY(NameBuff, transchar((int)wc));
10255 	else
10256 	    sprintf((char *)NameBuff, "%ld", *(long *)varp);
10257     }
10258     else    /* P_STRING */
10259     {
10260 	varp = *(char_u **)(varp);
10261 	if (varp == NULL)		    /* just in case */
10262 	    NameBuff[0] = NUL;
10263 #ifdef FEAT_CRYPT
10264 	/* don't show the actual value of 'key', only that it's set */
10265 	else if (opp->var == (char_u *)&p_key && *varp)
10266 	    STRCPY(NameBuff, "*****");
10267 #endif
10268 	else if (opp->flags & P_EXPAND)
10269 	    home_replace(NULL, varp, NameBuff, MAXPATHL, FALSE);
10270 	/* Translate 'pastetoggle' into special key names */
10271 	else if ((char_u **)opp->var == &p_pt)
10272 	    str2specialbuf(p_pt, NameBuff, MAXPATHL);
10273 	else
10274 	    vim_strncpy(NameBuff, varp, MAXPATHL - 1);
10275     }
10276 }
10277 
10278 /*
10279  * Return TRUE if "varp" points to 'wildchar' or 'wildcharm' and it can be
10280  * printed as a keyname.
10281  * "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'.
10282  */
10283     static int
10284 wc_use_keyname(varp, wcp)
10285     char_u	*varp;
10286     long	*wcp;
10287 {
10288     if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm))
10289     {
10290 	*wcp = *(long *)varp;
10291 	if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)*wcp) >= 0)
10292 	    return TRUE;
10293     }
10294     return FALSE;
10295 }
10296 
10297 #ifdef FEAT_LANGMAP
10298 /*
10299  * Any character has an equivalent 'langmap' character.  This is used for
10300  * keyboards that have a special language mode that sends characters above
10301  * 128 (although other characters can be translated too).  The "to" field is a
10302  * Vim command character.  This avoids having to switch the keyboard back to
10303  * ASCII mode when leaving Insert mode.
10304  *
10305  * langmap_mapchar[] maps any of 256 chars to an ASCII char used for Vim
10306  * commands.
10307  * When FEAT_MBYTE is defined langmap_mapga.ga_data is a sorted table of
10308  * langmap_entry_T.  This does the same as langmap_mapchar[] for characters >=
10309  * 256.
10310  */
10311 # ifdef FEAT_MBYTE
10312 /*
10313  * With multi-byte support use growarray for 'langmap' chars >= 256
10314  */
10315 typedef struct
10316 {
10317     int	    from;
10318     int     to;
10319 } langmap_entry_T;
10320 
10321 static garray_T langmap_mapga;
10322 static void langmap_set_entry __ARGS((int from, int to));
10323 
10324 /*
10325  * Search for an entry in "langmap_mapga" for "from".  If found set the "to"
10326  * field.  If not found insert a new entry at the appropriate location.
10327  */
10328     static void
10329 langmap_set_entry(from, to)
10330     int    from;
10331     int    to;
10332 {
10333     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
10334     int             a = 0;
10335     int             b = langmap_mapga.ga_len;
10336 
10337     /* Do a binary search for an existing entry. */
10338     while (a != b)
10339     {
10340 	int i = (a + b) / 2;
10341 	int d = entries[i].from - from;
10342 
10343 	if (d == 0)
10344 	{
10345 	    entries[i].to = to;
10346 	    return;
10347 	}
10348 	if (d < 0)
10349 	    a = i + 1;
10350 	else
10351 	    b = i;
10352     }
10353 
10354     if (ga_grow(&langmap_mapga, 1) != OK)
10355 	return;  /* out of memory */
10356 
10357     /* insert new entry at position "a" */
10358     entries = (langmap_entry_T *)(langmap_mapga.ga_data) + a;
10359     mch_memmove(entries + 1, entries,
10360 			(langmap_mapga.ga_len - a) * sizeof(langmap_entry_T));
10361     ++langmap_mapga.ga_len;
10362     entries[0].from = from;
10363     entries[0].to = to;
10364 }
10365 
10366 /*
10367  * Apply 'langmap' to multi-byte character "c" and return the result.
10368  */
10369     int
10370 langmap_adjust_mb(c)
10371     int c;
10372 {
10373     langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
10374     int a = 0;
10375     int b = langmap_mapga.ga_len;
10376 
10377     while (a != b)
10378     {
10379 	int i = (a + b) / 2;
10380 	int d = entries[i].from - c;
10381 
10382 	if (d == 0)
10383 	    return entries[i].to;  /* found matching entry */
10384 	if (d < 0)
10385 	    a = i + 1;
10386 	else
10387 	    b = i;
10388     }
10389     return c;  /* no entry found, return "c" unmodified */
10390 }
10391 # endif
10392 
10393     static void
10394 langmap_init()
10395 {
10396     int i;
10397 
10398     for (i = 0; i < 256; i++)
10399 	langmap_mapchar[i] = i;	 /* we init with a one-to-one map */
10400 # ifdef FEAT_MBYTE
10401     ga_init2(&langmap_mapga, sizeof(langmap_entry_T), 8);
10402 # endif
10403 }
10404 
10405 /*
10406  * Called when langmap option is set; the language map can be
10407  * changed at any time!
10408  */
10409     static void
10410 langmap_set()
10411 {
10412     char_u  *p;
10413     char_u  *p2;
10414     int	    from, to;
10415 
10416 #ifdef FEAT_MBYTE
10417     ga_clear(&langmap_mapga);		    /* clear the previous map first */
10418 #endif
10419     langmap_init();			    /* back to one-to-one map */
10420 
10421     for (p = p_langmap; p[0] != NUL; )
10422     {
10423 	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
10424 							       mb_ptr_adv(p2))
10425 	{
10426 	    if (p2[0] == '\\' && p2[1] != NUL)
10427 		++p2;
10428 	}
10429 	if (p2[0] == ';')
10430 	    ++p2;	    /* abcd;ABCD form, p2 points to A */
10431 	else
10432 	    p2 = NULL;	    /* aAbBcCdD form, p2 is NULL */
10433 	while (p[0])
10434 	{
10435 	    if (p[0] == ',')
10436 	    {
10437 		++p;
10438 		break;
10439 	    }
10440 	    if (p[0] == '\\' && p[1] != NUL)
10441 		++p;
10442 #ifdef FEAT_MBYTE
10443 	    from = (*mb_ptr2char)(p);
10444 #else
10445 	    from = p[0];
10446 #endif
10447 	    to = NUL;
10448 	    if (p2 == NULL)
10449 	    {
10450 		mb_ptr_adv(p);
10451 		if (p[0] != ',')
10452 		{
10453 		    if (p[0] == '\\')
10454 			++p;
10455 #ifdef FEAT_MBYTE
10456 		    to = (*mb_ptr2char)(p);
10457 #else
10458 		    to = p[0];
10459 #endif
10460 		}
10461 	    }
10462 	    else
10463 	    {
10464 		if (p2[0] != ',')
10465 		{
10466 		    if (p2[0] == '\\')
10467 			++p2;
10468 #ifdef FEAT_MBYTE
10469 		    to = (*mb_ptr2char)(p2);
10470 #else
10471 		    to = p2[0];
10472 #endif
10473 		}
10474 	    }
10475 	    if (to == NUL)
10476 	    {
10477 		EMSG2(_("E357: 'langmap': Matching character missing for %s"),
10478 							     transchar(from));
10479 		return;
10480 	    }
10481 
10482 #ifdef FEAT_MBYTE
10483 	    if (from >= 256)
10484 		langmap_set_entry(from, to);
10485 	    else
10486 #endif
10487 		langmap_mapchar[from & 255] = to;
10488 
10489 	    /* Advance to next pair */
10490 	    mb_ptr_adv(p);
10491 	    if (p2 != NULL)
10492 	    {
10493 		mb_ptr_adv(p2);
10494 		if (*p == ';')
10495 		{
10496 		    p = p2;
10497 		    if (p[0] != NUL)
10498 		    {
10499 			if (p[0] != ',')
10500 			{
10501 			    EMSG2(_("E358: 'langmap': Extra characters after semicolon: %s"), p);
10502 			    return;
10503 			}
10504 			++p;
10505 		    }
10506 		    break;
10507 		}
10508 	    }
10509 	}
10510     }
10511 }
10512 #endif
10513 
10514 /*
10515  * Return TRUE if format option 'x' is in effect.
10516  * Take care of no formatting when 'paste' is set.
10517  */
10518     int
10519 has_format_option(x)
10520     int		x;
10521 {
10522     if (p_paste)
10523 	return FALSE;
10524     return (vim_strchr(curbuf->b_p_fo, x) != NULL);
10525 }
10526 
10527 /*
10528  * Return TRUE if "x" is present in 'shortmess' option, or
10529  * 'shortmess' contains 'a' and "x" is present in SHM_A.
10530  */
10531     int
10532 shortmess(x)
10533     int	    x;
10534 {
10535     return (   vim_strchr(p_shm, x) != NULL
10536 	    || (vim_strchr(p_shm, 'a') != NULL
10537 		&& vim_strchr((char_u *)SHM_A, x) != NULL));
10538 }
10539 
10540 /*
10541  * paste_option_changed() - Called after p_paste was set or reset.
10542  */
10543     static void
10544 paste_option_changed()
10545 {
10546     static int	old_p_paste = FALSE;
10547     static int	save_sm = 0;
10548 #ifdef FEAT_CMDL_INFO
10549     static int	save_ru = 0;
10550 #endif
10551 #ifdef FEAT_RIGHTLEFT
10552     static int	save_ri = 0;
10553     static int	save_hkmap = 0;
10554 #endif
10555     buf_T	*buf;
10556 
10557     if (p_paste)
10558     {
10559 	/*
10560 	 * Paste switched from off to on.
10561 	 * Save the current values, so they can be restored later.
10562 	 */
10563 	if (!old_p_paste)
10564 	{
10565 	    /* save options for each buffer */
10566 	    for (buf = firstbuf; buf != NULL; buf = buf->b_next)
10567 	    {
10568 		buf->b_p_tw_nopaste = buf->b_p_tw;
10569 		buf->b_p_wm_nopaste = buf->b_p_wm;
10570 		buf->b_p_sts_nopaste = buf->b_p_sts;
10571 		buf->b_p_ai_nopaste = buf->b_p_ai;
10572 	    }
10573 
10574 	    /* save global options */
10575 	    save_sm = p_sm;
10576 #ifdef FEAT_CMDL_INFO
10577 	    save_ru = p_ru;
10578 #endif
10579 #ifdef FEAT_RIGHTLEFT
10580 	    save_ri = p_ri;
10581 	    save_hkmap = p_hkmap;
10582 #endif
10583 	    /* save global values for local buffer options */
10584 	    p_tw_nopaste = p_tw;
10585 	    p_wm_nopaste = p_wm;
10586 	    p_sts_nopaste = p_sts;
10587 	    p_ai_nopaste = p_ai;
10588 	}
10589 
10590 	/*
10591 	 * Always set the option values, also when 'paste' is set when it is
10592 	 * already on.
10593 	 */
10594 	/* set options for each buffer */
10595 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
10596 	{
10597 	    buf->b_p_tw = 0;	    /* textwidth is 0 */
10598 	    buf->b_p_wm = 0;	    /* wrapmargin is 0 */
10599 	    buf->b_p_sts = 0;	    /* softtabstop is 0 */
10600 	    buf->b_p_ai = 0;	    /* no auto-indent */
10601 	}
10602 
10603 	/* set global options */
10604 	p_sm = 0;		    /* no showmatch */
10605 #ifdef FEAT_CMDL_INFO
10606 # ifdef FEAT_WINDOWS
10607 	if (p_ru)
10608 	    status_redraw_all();    /* redraw to remove the ruler */
10609 # endif
10610 	p_ru = 0;		    /* no ruler */
10611 #endif
10612 #ifdef FEAT_RIGHTLEFT
10613 	p_ri = 0;		    /* no reverse insert */
10614 	p_hkmap = 0;		    /* no Hebrew keyboard */
10615 #endif
10616 	/* set global values for local buffer options */
10617 	p_tw = 0;
10618 	p_wm = 0;
10619 	p_sts = 0;
10620 	p_ai = 0;
10621     }
10622 
10623     /*
10624      * Paste switched from on to off: Restore saved values.
10625      */
10626     else if (old_p_paste)
10627     {
10628 	/* restore options for each buffer */
10629 	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
10630 	{
10631 	    buf->b_p_tw = buf->b_p_tw_nopaste;
10632 	    buf->b_p_wm = buf->b_p_wm_nopaste;
10633 	    buf->b_p_sts = buf->b_p_sts_nopaste;
10634 	    buf->b_p_ai = buf->b_p_ai_nopaste;
10635 	}
10636 
10637 	/* restore global options */
10638 	p_sm = save_sm;
10639 #ifdef FEAT_CMDL_INFO
10640 # ifdef FEAT_WINDOWS
10641 	if (p_ru != save_ru)
10642 	    status_redraw_all();    /* redraw to draw the ruler */
10643 # endif
10644 	p_ru = save_ru;
10645 #endif
10646 #ifdef FEAT_RIGHTLEFT
10647 	p_ri = save_ri;
10648 	p_hkmap = save_hkmap;
10649 #endif
10650 	/* set global values for local buffer options */
10651 	p_tw = p_tw_nopaste;
10652 	p_wm = p_wm_nopaste;
10653 	p_sts = p_sts_nopaste;
10654 	p_ai = p_ai_nopaste;
10655     }
10656 
10657     old_p_paste = p_paste;
10658 }
10659 
10660 /*
10661  * vimrc_found() - Called when a ".vimrc" or "VIMINIT" has been found.
10662  *
10663  * Reset 'compatible' and set the values for options that didn't get set yet
10664  * to the Vim defaults.
10665  * Don't do this if the 'compatible' option has been set or reset before.
10666  * When "fname" is not NULL, use it to set $"envname" when it wasn't set yet.
10667  */
10668     void
10669 vimrc_found(fname, envname)
10670     char_u	*fname;
10671     char_u	*envname;
10672 {
10673     int		opt_idx;
10674     int		dofree = FALSE;
10675     char_u	*p;
10676 
10677     if (!option_was_set((char_u *)"cp"))
10678     {
10679 	p_cp = FALSE;
10680 	for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
10681 	    if (!(options[opt_idx].flags & (P_WAS_SET|P_VI_DEF)))
10682 		set_option_default(opt_idx, OPT_FREE, FALSE);
10683 	didset_options();
10684     }
10685 
10686     if (fname != NULL)
10687     {
10688 	p = vim_getenv(envname, &dofree);
10689 	if (p == NULL)
10690 	{
10691 	    /* Set $MYVIMRC to the first vimrc file found. */
10692 	    p = FullName_save(fname, FALSE);
10693 	    if (p != NULL)
10694 	    {
10695 		vim_setenv(envname, p);
10696 		vim_free(p);
10697 	    }
10698 	}
10699 	else if (dofree)
10700 	    vim_free(p);
10701     }
10702 }
10703 
10704 /*
10705  * Set 'compatible' on or off.  Called for "-C" and "-N" command line arg.
10706  */
10707     void
10708 change_compatible(on)
10709     int	    on;
10710 {
10711     int	    opt_idx;
10712 
10713     if (p_cp != on)
10714     {
10715 	p_cp = on;
10716 	compatible_set();
10717     }
10718     opt_idx = findoption((char_u *)"cp");
10719     if (opt_idx >= 0)
10720 	options[opt_idx].flags |= P_WAS_SET;
10721 }
10722 
10723 /*
10724  * Return TRUE when option "name" has been set.
10725  */
10726     int
10727 option_was_set(name)
10728     char_u	*name;
10729 {
10730     int idx;
10731 
10732     idx = findoption(name);
10733     if (idx < 0)	/* unknown option */
10734 	return FALSE;
10735     if (options[idx].flags & P_WAS_SET)
10736 	return TRUE;
10737     return FALSE;
10738 }
10739 
10740 /*
10741  * compatible_set() - Called when 'compatible' has been set or unset.
10742  *
10743  * When 'compatible' set: Set all relevant options (those that have the P_VIM)
10744  * flag) to a Vi compatible value.
10745  * When 'compatible' is unset: Set all options that have a different default
10746  * for Vim (without the P_VI_DEF flag) to that default.
10747  */
10748     static void
10749 compatible_set()
10750 {
10751     int	    opt_idx;
10752 
10753     for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
10754 	if (	   ((options[opt_idx].flags & P_VIM) && p_cp)
10755 		|| (!(options[opt_idx].flags & P_VI_DEF) && !p_cp))
10756 	    set_option_default(opt_idx, OPT_FREE, p_cp);
10757     didset_options();
10758 }
10759 
10760 #ifdef FEAT_LINEBREAK
10761 
10762 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
10763    /* Borland C++ screws up loop optimisation here (negri) */
10764   #pragma option -O-l
10765 # endif
10766 
10767 /*
10768  * fill_breakat_flags() -- called when 'breakat' changes value.
10769  */
10770     static void
10771 fill_breakat_flags()
10772 {
10773     char_u	*p;
10774     int		i;
10775 
10776     for (i = 0; i < 256; i++)
10777 	breakat_flags[i] = FALSE;
10778 
10779     if (p_breakat != NULL)
10780 	for (p = p_breakat; *p; p++)
10781 	    breakat_flags[*p] = TRUE;
10782 }
10783 
10784 # if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
10785   #pragma option -O.l
10786 # endif
10787 
10788 #endif
10789 
10790 /*
10791  * Check an option that can be a range of string values.
10792  *
10793  * Return OK for correct value, FAIL otherwise.
10794  * Empty is always OK.
10795  */
10796     static int
10797 check_opt_strings(val, values, list)
10798     char_u	*val;
10799     char	**values;
10800     int		list;	    /* when TRUE: accept a list of values */
10801 {
10802     return opt_strings_flags(val, values, NULL, list);
10803 }
10804 
10805 /*
10806  * Handle an option that can be a range of string values.
10807  * Set a flag in "*flagp" for each string present.
10808  *
10809  * Return OK for correct value, FAIL otherwise.
10810  * Empty is always OK.
10811  */
10812     static int
10813 opt_strings_flags(val, values, flagp, list)
10814     char_u	*val;		/* new value */
10815     char	**values;	/* array of valid string values */
10816     unsigned	*flagp;
10817     int		list;		/* when TRUE: accept a list of values */
10818 {
10819     int		i;
10820     int		len;
10821     unsigned	new_flags = 0;
10822 
10823     while (*val)
10824     {
10825 	for (i = 0; ; ++i)
10826 	{
10827 	    if (values[i] == NULL)	/* val not found in values[] */
10828 		return FAIL;
10829 
10830 	    len = (int)STRLEN(values[i]);
10831 	    if (STRNCMP(values[i], val, len) == 0
10832 		    && ((list && val[len] == ',') || val[len] == NUL))
10833 	    {
10834 		val += len + (val[len] == ',');
10835 		new_flags |= (1 << i);
10836 		break;		/* check next item in val list */
10837 	    }
10838 	}
10839     }
10840     if (flagp != NULL)
10841 	*flagp = new_flags;
10842 
10843     return OK;
10844 }
10845 
10846 /*
10847  * Read the 'wildmode' option, fill wim_flags[].
10848  */
10849     static int
10850 check_opt_wim()
10851 {
10852     char_u	new_wim_flags[4];
10853     char_u	*p;
10854     int		i;
10855     int		idx = 0;
10856 
10857     for (i = 0; i < 4; ++i)
10858 	new_wim_flags[i] = 0;
10859 
10860     for (p = p_wim; *p; ++p)
10861     {
10862 	for (i = 0; ASCII_ISALPHA(p[i]); ++i)
10863 	    ;
10864 	if (p[i] != NUL && p[i] != ',' && p[i] != ':')
10865 	    return FAIL;
10866 	if (i == 7 && STRNCMP(p, "longest", 7) == 0)
10867 	    new_wim_flags[idx] |= WIM_LONGEST;
10868 	else if (i == 4 && STRNCMP(p, "full", 4) == 0)
10869 	    new_wim_flags[idx] |= WIM_FULL;
10870 	else if (i == 4 && STRNCMP(p, "list", 4) == 0)
10871 	    new_wim_flags[idx] |= WIM_LIST;
10872 	else
10873 	    return FAIL;
10874 	p += i;
10875 	if (*p == NUL)
10876 	    break;
10877 	if (*p == ',')
10878 	{
10879 	    if (idx == 3)
10880 		return FAIL;
10881 	    ++idx;
10882 	}
10883     }
10884 
10885     /* fill remaining entries with last flag */
10886     while (idx < 3)
10887     {
10888 	new_wim_flags[idx + 1] = new_wim_flags[idx];
10889 	++idx;
10890     }
10891 
10892     /* only when there are no errors, wim_flags[] is changed */
10893     for (i = 0; i < 4; ++i)
10894 	wim_flags[i] = new_wim_flags[i];
10895     return OK;
10896 }
10897 
10898 /*
10899  * Check if backspacing over something is allowed.
10900  */
10901     int
10902 can_bs(what)
10903     int		what;	    /* BS_INDENT, BS_EOL or BS_START */
10904 {
10905     switch (*p_bs)
10906     {
10907 	case '2':	return TRUE;
10908 	case '1':	return (what != BS_START);
10909 	case '0':	return FALSE;
10910     }
10911     return vim_strchr(p_bs, what) != NULL;
10912 }
10913 
10914 /*
10915  * Save the current values of 'fileformat' and 'fileencoding', so that we know
10916  * the file must be considered changed when the value is different.
10917  */
10918     void
10919 save_file_ff(buf)
10920     buf_T	*buf;
10921 {
10922     buf->b_start_ffc = *buf->b_p_ff;
10923     buf->b_start_eol = buf->b_p_eol;
10924 #ifdef FEAT_MBYTE
10925     buf->b_start_bomb = buf->b_p_bomb;
10926 
10927     /* Only use free/alloc when necessary, they take time. */
10928     if (buf->b_start_fenc == NULL
10929 			     || STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0)
10930     {
10931 	vim_free(buf->b_start_fenc);
10932 	buf->b_start_fenc = vim_strsave(buf->b_p_fenc);
10933     }
10934 #endif
10935 }
10936 
10937 /*
10938  * Return TRUE if 'fileformat' and/or 'fileencoding' has a different value
10939  * from when editing started (save_file_ff() called).
10940  * Also when 'endofline' was changed and 'binary' is set, or when 'bomb' was
10941  * changed and 'binary' is not set.
10942  * Don't consider a new, empty buffer to be changed.
10943  */
10944     int
10945 file_ff_differs(buf)
10946     buf_T	*buf;
10947 {
10948     /* In a buffer that was never loaded the options are not valid. */
10949     if (buf->b_flags & BF_NEVERLOADED)
10950 	return FALSE;
10951     if ((buf->b_flags & BF_NEW)
10952 	    && buf->b_ml.ml_line_count == 1
10953 	    && *ml_get_buf(buf, (linenr_T)1, FALSE) == NUL)
10954 	return FALSE;
10955     if (buf->b_start_ffc != *buf->b_p_ff)
10956 	return TRUE;
10957     if (buf->b_p_bin && buf->b_start_eol != buf->b_p_eol)
10958 	return TRUE;
10959 #ifdef FEAT_MBYTE
10960     if (!buf->b_p_bin && buf->b_start_bomb != buf->b_p_bomb)
10961 	return TRUE;
10962     if (buf->b_start_fenc == NULL)
10963 	return (*buf->b_p_fenc != NUL);
10964     return (STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0);
10965 #else
10966     return FALSE;
10967 #endif
10968 }
10969 
10970 /*
10971  * return OK if "p" is a valid fileformat name, FAIL otherwise.
10972  */
10973     int
10974 check_ff_value(p)
10975     char_u	*p;
10976 {
10977     return check_opt_strings(p, p_ff_values, FALSE);
10978 }
10979