diff --git a/src/option.c b/src/option.c
new file mode 100644
index 0000000..b87005e
--- /dev/null
+++ b/src/option.c
@@ -0,0 +1,9383 @@
+/* vi:set ts=8 sts=4 sw=4:
+ *
+ * VIM - Vi IMproved	by Bram Moolenaar
+ *
+ * Do ":help uganda"  in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ * See README.txt for an overview of the Vim source code.
+ */
+
+/*
+ * Code to handle user-settable options. This is all pretty much table-
+ * driven. Checklist for adding a new option:
+ * - Put it in the options array below (copy an existing entry).
+ * - For a global option: Add a variable for it in option.h.
+ * - For a buffer or window local option:
+ *   - Add a PV_XX entry to the enum below.
+ *   - Add a variable to the window or buffer struct in structs.h.
+ *   - For a window option, add some code to copy_winopt().
+ *   - For a buffer option, add some code to buf_copy_options().
+ *   - For a buffer string option, add code to check_buf_options().
+ * - If it's a numeric option, add any necessary bounds checks to do_set().
+ * - If it's a list of flags, add some code in do_set(), search for WW_ALL.
+ * - When adding an option with expansion (P_EXPAND), but with a different
+ *   default for Vi and Vim (no P_VI_DEF), add some code at VIMEXP.
+ * - Add documentation!  One line in doc/help.txt, full description in
+ *   options.txt, and any other related places.
+ * - Add an entry in runtime/optwin.vim.
+ * When making changes:
+ * - Adjust the help for the option in doc/option.txt.
+ * - When an entry has the P_VIM flag, or is lacking the P_VI_DEF flag, add a
+ *   comment at the help for the 'compatible' option.
+ */
+
+#define IN_OPTION_C
+#include "vim.h"
+
+/*
+ * The options that are local to a window or buffer have "indir" set to one of
+ * these values.  Special values:
+ * PV_NONE: global option.
+ * PV_BOTH is added: global option which also has a local value.
+ */
+#define PV_BOTH 0x1000
+#define OPT_BOTH(x) (idopt_T)(PV_BOTH + (int)(x))
+
+typedef enum
+{
+    PV_NONE = 0
+    , PV_AI
+    , PV_AR
+    , PV_ARAB
+    , PV_BH
+    , PV_BIN
+    , PV_BL
+    , PV_BOMB
+    , PV_BT
+    , PV_CI
+    , PV_CIN
+    , PV_CINK
+    , PV_CINO
+    , PV_CINW
+    , PV_CMS
+    , PV_COM
+    , PV_CPT
+    , PV_DEF
+    , PV_DICT
+    , PV_DIFF
+    , PV_EFM
+    , PV_EOL
+    , PV_EP
+    , PV_ET
+    , PV_FDC
+    , PV_FDE
+    , PV_FDI
+    , PV_FDL
+    , PV_FDM
+    , PV_FDN
+    , PV_FDT
+    , PV_FEN
+    , PV_FENC
+    , PV_FF
+    , PV_FML
+    , PV_FMR
+    , PV_FO
+    , PV_FT
+    , PV_GP
+    , PV_IMI
+    , PV_IMS
+    , PV_INC
+    , PV_INDE
+    , PV_INDK
+    , PV_INEX
+    , PV_INF
+    , PV_ISK
+    , PV_KEY
+    , PV_KMAP
+    , PV_KP
+    , PV_LBR
+    , PV_LISP
+    , PV_LIST
+    , PV_MA
+    , PV_ML
+    , PV_MOD
+    , PV_MP
+    , PV_MPS
+    , PV_NF
+    , PV_NU
+    , PV_OFT
+    , PV_PATH
+    , PV_PI
+    , PV_PVW
+    , PV_RL
+    , PV_RLC
+    , PV_RO
+    , PV_SCBIND
+    , PV_SCROLL
+    , PV_SI
+    , PV_SN
+    , PV_STS
+    , PV_SUA
+    , PV_SW
+    , PV_SWF
+    , PV_SYN
+    , PV_TAGS
+    , PV_TS
+    , PV_TSR
+    , PV_TW
+    , PV_TX
+    , PV_WFH
+    , PV_WM
+    , PV_WRAP
+} idopt_T;
+
+/*
+ * Options local to a window have a value local to a buffer and global to all
+ * buffers.  Indicate this by setting "var" to VAR_WIN.
+ */
+#define VAR_WIN ((char_u *)-1)
+
+/*
+ * These the global values for options which are also local to a buffer.
+ * Only to be used in option.c!
+ */
+static int	p_ai;
+static int	p_bin;
+#ifdef FEAT_MBYTE
+static int	p_bomb;
+#endif
+#if defined(FEAT_QUICKFIX)
+static char_u	*p_bh;
+static char_u	*p_bt;
+#endif
+static int	p_bl;
+static int	p_ci;
+#ifdef FEAT_CINDENT
+static int	p_cin;
+static char_u	*p_cink;
+static char_u	*p_cino;
+#endif
+#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
+static char_u	*p_cinw;
+#endif
+#ifdef FEAT_COMMENTS
+static char_u	*p_com;
+#endif
+#ifdef FEAT_FOLDING
+static char_u	*p_cms;
+#endif
+#ifdef FEAT_INS_EXPAND
+static char_u	*p_cpt;
+#endif
+static int	p_eol;
+static int	p_et;
+#ifdef FEAT_MBYTE
+static char_u	*p_fenc;
+#endif
+static char_u	*p_ff;
+static char_u	*p_fo;
+#ifdef FEAT_AUTOCMD
+static char_u	*p_ft;
+#endif
+static long	p_iminsert;
+static long	p_imsearch;
+#if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
+static char_u	*p_inex;
+#endif
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+static char_u	*p_inde;
+static char_u	*p_indk;
+#endif
+static int	p_inf;
+static char_u	*p_isk;
+#ifdef FEAT_CRYPT
+static char_u	*p_key;
+#endif
+#ifdef FEAT_LISP
+static int	p_lisp;
+#endif
+static int	p_ml;
+static int	p_ma;
+static int	p_mod;
+static char_u	*p_mps;
+static char_u	*p_nf;
+#ifdef FEAT_OSFILETYPE
+static char_u	*p_oft;
+#endif
+static int	p_pi;
+static int	p_ro;
+#ifdef FEAT_SMARTINDENT
+static int	p_si;
+#endif
+#ifndef SHORT_FNAME
+static int	p_sn;
+#endif
+static long	p_sts;
+#if defined(FEAT_SEARCHPATH)
+static char_u	*p_sua;
+#endif
+static long	p_sw;
+static int	p_swf;
+#ifdef FEAT_SYN_HL
+static char_u	*p_syn;
+#endif
+static long	p_ts;
+static long	p_tw;
+static int	p_tx;
+static long	p_wm;
+#ifdef FEAT_KEYMAP
+static char_u	*p_keymap;
+#endif
+
+/* Saved values for when 'bin' is set. */
+static int	p_et_nobin;
+static int	p_ml_nobin;
+static long	p_tw_nobin;
+static long	p_wm_nobin;
+
+/* Saved values for when 'paste' is set */
+static long	p_tw_nopaste;
+static long	p_wm_nopaste;
+static long	p_sts_nopaste;
+static int	p_ai_nopaste;
+
+struct vimoption
+{
+    char	*fullname;	/* full option name */
+    char	*shortname;	/* permissible abbreviation */
+    long_u	flags;		/* see below */
+    char_u	*var;		/* global option: pointer to variable;
+				 * window-local option: VAR_WIN;
+				 * buffer-local option: global value */
+    idopt_T	indir;		/* global option: PV_NONE;
+				 * local option: indirect option index */
+    char_u	*def_val[2];	/* default values for variable (vi and vim) */
+#ifdef FEAT_EVAL
+    scid_T	scriptID;	/* script in which the option was last set */
+#endif
+};
+
+#define VI_DEFAULT  0	    /* def_val[VI_DEFAULT] is Vi default value */
+#define VIM_DEFAULT 1	    /* def_val[VIM_DEFAULT] is Vim default value */
+
+/*
+ * Flags
+ */
+#define P_BOOL		0x01	/* the option is boolean */
+#define P_NUM		0x02	/* the option is numeric */
+#define P_STRING	0x04	/* the option is a string */
+#define P_ALLOCED	0x08	/* the string option is in allocated memory,
+				    must use vim_free() when assigning new
+				    value. Not set if default is the same. */
+#define P_EXPAND	0x10	/* environment expansion.  NOTE: P_EXPAND can
+				   never be used for local or hidden options! */
+#define P_NODEFAULT	0x40	/* don't set to default value */
+#define P_DEF_ALLOCED	0x80	/* default value is in allocated memory, must
+				    use vim_free() when assigning new value */
+#define P_WAS_SET	0x100	/* option has been set/reset */
+#define P_NO_MKRC	0x200	/* don't include in :mkvimrc output */
+#define P_VI_DEF	0x400	/* Use Vi default for Vim */
+#define P_VIM		0x800	/* Vim option, reset when 'cp' set */
+
+				/* when option changed, what to display: */
+#define P_RSTAT		0x1000	/* redraw status lines */
+#define P_RWIN		0x2000	/* redraw current window */
+#define P_RBUF		0x4000	/* redraw current buffer */
+#define P_RALL		0x6000	/* redraw all windows */
+#define P_RCLR		0x7000	/* clear and redraw all */
+
+#define P_COMMA		0x8000	/* comma separated list */
+#define P_NODUP		0x10000L/* don't allow duplicate strings */
+#define P_FLAGLIST	0x20000L/* list of single-char flags */
+
+#define P_SECURE	0x40000L/* cannot change in modeline or secure mode */
+#define P_GETTEXT	0x80000L/* expand default value with _() */
+#define P_NOGLOB       0x100000L/* do not use local value for global vimrc */
+
+/*
+ * options[] is initialized here.
+ * The order of the options MUST be alphabetic for ":set all" and findoption().
+ * All option names MUST start with a lowercase letter (for findoption()).
+ * Exception: "t_" options are at the end.
+ * The options with a NULL variable are 'hidden': a set command for them is
+ * ignored and they are not printed.
+ */
+static struct vimoption
+#ifdef FEAT_GUI_W16
+	_far
+#endif
+	options[] =
+{
+    {"aleph",	    "al",   P_NUM|P_VI_DEF,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)&p_aleph, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {
+#if (defined(MSDOS) || defined(WIN3264) || defined(OS2)) && !defined(FEAT_GUI_W32)
+			    (char_u *)128L,
+#else
+			    (char_u *)224L,
+#endif
+					    (char_u *)0L}},
+    {"antialias",   "anti", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
+#if defined(FEAT_GUI) && defined(MACOS_X)
+			    (char_u *)&p_antialias, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)FALSE}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)FALSE}
+#endif
+			    },
+    {"arabic",	    "arab", P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_ARABIC
+			    (char_u *)VAR_WIN, PV_ARAB,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"arabicshape", "arshape", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
+#ifdef FEAT_ARABIC
+			    (char_u *)&p_arshape, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"allowrevins", "ari",  P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)&p_ari, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"altkeymap",   "akm",  P_BOOL|P_VI_DEF,
+#ifdef FEAT_FKMAP
+			    (char_u *)&p_altkeymap, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"ambiwidth",  "ambw",  P_STRING|P_VI_DEF|P_RCLR,
+#if defined(FEAT_MBYTE)
+			    (char_u *)&p_ambw, PV_NONE,
+			    {(char_u *)"single", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+#if defined(FEAT_NETBEANS_INTG) || defined(FEAT_SUN_WORKSHOP)
+    {"autochdir",  "acd",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_acd, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+#endif
+    {"autoindent",  "ai",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_ai, PV_AI,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"autoprint",   "ap",   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"autoread",    "ar",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_ar, OPT_BOTH(PV_AR),
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"autowrite",   "aw",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_aw, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"autowriteall","awa",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_awa, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"background",  "bg",   P_STRING|P_VI_DEF|P_RCLR,
+			    (char_u *)&p_bg, PV_NONE,
+			    {
+#if (defined(MSDOS) || defined(OS2) || defined(WIN3264)) && !defined(FEAT_GUI)
+			    (char_u *)"dark",
+#else
+			    (char_u *)"light",
+#endif
+					    (char_u *)0L}},
+    {"backspace",   "bs",   P_STRING|P_VI_DEF|P_VIM|P_COMMA|P_NODUP,
+			    (char_u *)&p_bs, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"backup",	    "bk",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_bk, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"backupcopy",  "bkc",  P_STRING|P_VIM|P_COMMA|P_NODUP,
+			    (char_u *)&p_bkc, PV_NONE,
+#ifdef UNIX
+			    {(char_u *)"yes", (char_u *)"auto"}
+#else
+			    {(char_u *)"auto", (char_u *)"auto"}
+#endif
+			    },
+    {"backupdir",   "bdir", P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP|P_SECURE,
+			    (char_u *)&p_bdir, PV_NONE,
+			    {(char_u *)DFLT_BDIR, (char_u *)0L}},
+    {"backupext",   "bex",  P_STRING|P_VI_DEF,
+			    (char_u *)&p_bex, PV_NONE,
+			    {
+#ifdef VMS
+			    (char_u *)"_",
+#else
+			    (char_u *)"~",
+#endif
+					    (char_u *)0L}},
+    {"backupskip",  "bsk",  P_STRING|P_VI_DEF|P_COMMA,
+#ifdef FEAT_WILDIGN
+			    (char_u *)&p_bsk, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+#ifdef FEAT_BEVAL
+    {"balloondelay","bdlay",P_NUM|P_VI_DEF,
+			    (char_u *)&p_bdlay, PV_NONE,
+			    {(char_u *)600L, (char_u *)0L}},
+#endif
+#if defined(FEAT_BEVAL) && (defined(FEAT_SUN_WORKSHOP) \
+	|| defined(FEAT_NETBEANS_INTG))
+    {"ballooneval", "beval",P_BOOL|P_VI_DEF|P_NO_MKRC,
+			    (char_u *)&p_beval, PV_NONE,
+			    {(char_u*)FALSE, (char_u *)0L}},
+#endif
+    {"beautify",    "bf",   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"binary",	    "bin",  P_BOOL|P_VI_DEF|P_RSTAT,
+			    (char_u *)&p_bin, PV_BIN,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"bioskey",	    "biosk",P_BOOL|P_VI_DEF,
+#ifdef MSDOS
+			    (char_u *)&p_biosk, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"bomb",	    NULL,   P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_bomb, PV_BOMB,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"breakat",	    "brk",  P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
+#ifdef FEAT_LINEBREAK
+			    (char_u *)&p_breakat, PV_NONE,
+			    {(char_u *)" \t!@*-+;:,./?", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"browsedir",   "bsdir",P_STRING|P_VI_DEF,
+#ifdef FEAT_BROWSE
+			    (char_u *)&p_bsdir, PV_NONE,
+			    {(char_u *)"last", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"bufhidden",   "bh",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
+#if defined(FEAT_QUICKFIX)
+			    (char_u *)&p_bh, PV_BH,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"buflisted",   "bl",   P_BOOL|P_VI_DEF|P_NOGLOB,
+			    (char_u *)&p_bl, PV_BL,
+			    {(char_u *)1L, (char_u *)0L}
+			    },
+    {"buftype",	    "bt",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
+#if defined(FEAT_QUICKFIX)
+			    (char_u *)&p_bt, PV_BT,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"casemap",	    "cmp",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_cmp, PV_NONE,
+			    {(char_u *)"internal,keepascii", (char_u *)0L}
+			    },
+    {"cdpath",	    "cd",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_SEARCHPATH
+			    (char_u *)&p_cdpath, PV_NONE,
+			    {(char_u *)",,", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"cedit",	    NULL,   P_STRING,
+#ifdef FEAT_CMDWIN
+			    (char_u *)&p_cedit, PV_NONE,
+			    {(char_u *)"", (char_u *)CTRL_F_STR}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"charconvert",  "ccv", P_STRING|P_VI_DEF|P_SECURE,
+#if defined(FEAT_MBYTE) && defined(FEAT_EVAL)
+			    (char_u *)&p_ccv, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"cindent",	    "cin",  P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_CINDENT
+			    (char_u *)&p_cin, PV_CIN,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"cinkeys",	    "cink", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_CINDENT
+			    (char_u *)&p_cink, PV_CINK,
+			    {(char_u *)"0{,0},0),:,0#,!^F,o,O,e", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"cinoptions",  "cino", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_CINDENT
+			    (char_u *)&p_cino, PV_CINO,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"cinwords",    "cinw", P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
+			    (char_u *)&p_cinw, PV_CINW,
+			    {(char_u *)"if,else,while,do,for,switch",
+				(char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"clipboard",   "cb",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_CLIPBOARD
+			    (char_u *)&p_cb, PV_NONE,
+# ifdef FEAT_XCLIPBOARD
+			    {(char_u *)"autoselect,exclude:cons\\|linux",
+							       (char_u *)0L}
+# else
+			    {(char_u *)"", (char_u *)0L}
+# endif
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#endif
+			    },
+    {"cmdheight",   "ch",   P_NUM|P_VI_DEF|P_RALL,
+			    (char_u *)&p_ch, PV_NONE,
+			    {(char_u *)1L, (char_u *)0L}},
+    {"cmdwinheight", "cwh", P_NUM|P_VI_DEF,
+#ifdef FEAT_CMDWIN
+			    (char_u *)&p_cwh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)7L, (char_u *)0L}},
+    {"columns",	    "co",   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
+			    (char_u *)&Columns, PV_NONE,
+			    {(char_u *)80L, (char_u *)0L}},
+    {"comments",    "com",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_COMMENTS
+			    (char_u *)&p_com, PV_COM,
+			    {(char_u *)"s1:/*,mb:*,ex:*/,://,b:#,:%,:XCOMM,n:>,fb:-",
+				(char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"commentstring", "cms", P_STRING|P_ALLOCED|P_VI_DEF,
+#ifdef FEAT_FOLDING
+			    (char_u *)&p_cms, PV_CMS,
+			    {(char_u *)"/*%s*/", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"compatible",  "cp",   P_BOOL|P_RALL,
+			    (char_u *)&p_cp, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)FALSE}},
+    {"complete",    "cpt",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_INS_EXPAND
+			    (char_u *)&p_cpt, PV_CPT,
+			    {(char_u *)".,w,b,u,t,i", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"confirm",     "cf",   P_BOOL|P_VI_DEF,
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+			    (char_u *)&p_confirm, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"conskey",	    "consk",P_BOOL|P_VI_DEF,
+#ifdef MSDOS
+			    (char_u *)&p_consk, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"copyindent",  "ci",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_ci, PV_CI,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"cpoptions",   "cpo",  P_STRING|P_VIM|P_RALL|P_FLAGLIST,
+			    (char_u *)&p_cpo, PV_NONE,
+			    {(char_u *)CPO_ALL, (char_u *)CPO_DEFAULT}},
+    {"cscopepathcomp", "cspc", P_NUM|P_VI_DEF|P_VIM,
+#ifdef FEAT_CSCOPE
+			    (char_u *)&p_cspc, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)0L, (char_u *)0L}},
+    {"cscopeprg",   "csprg", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_CSCOPE
+			    (char_u *)&p_csprg, PV_NONE,
+			    {(char_u *)"cscope", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"cscopequickfix", "csqf", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
+			    (char_u *)&p_csqf, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"cscopetag",   "cst",  P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_CSCOPE
+			    (char_u *)&p_cst, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)0L, (char_u *)0L}},
+    {"cscopetagorder", "csto", P_NUM|P_VI_DEF|P_VIM,
+#ifdef FEAT_CSCOPE
+			    (char_u *)&p_csto, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)0L, (char_u *)0L}},
+    {"cscopeverbose", "csverb", P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_CSCOPE
+			    (char_u *)&p_csverbose, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)0L, (char_u *)0L}},
+    {"debug",	    NULL,   P_STRING|P_VI_DEF,
+			    (char_u *)&p_debug, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"define",	    "def",  P_STRING|P_ALLOCED|P_VI_DEF,
+#ifdef FEAT_FIND_ID
+			    (char_u *)&p_def, OPT_BOTH(PV_DEF),
+			    {(char_u *)"^\\s#\\s*define", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"delcombine", "deco",  P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_deco, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}
+			    },
+    {"dictionary",  "dict", P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_INS_EXPAND
+			    (char_u *)&p_dict, OPT_BOTH(PV_DICT),
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"diff",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN|P_NOGLOB,
+#ifdef FEAT_DIFF
+			    (char_u *)VAR_WIN, PV_DIFF,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"diffexpr",    "dex",  P_STRING|P_VI_DEF|P_SECURE,
+#if defined(FEAT_DIFF) && defined(FEAT_EVAL)
+			    (char_u *)&p_dex, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"diffopt",	    "dip",  P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN|P_COMMA|P_NODUP,
+#ifdef FEAT_DIFF
+			    (char_u *)&p_dip, PV_NONE,
+			    {(char_u *)"filler", (char_u *)NULL}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)"", (char_u *)NULL}
+#endif
+			    },
+    {"digraph",	    "dg",   P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_DIGRAPHS
+			    (char_u *)&p_dg, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"directory",   "dir",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP|P_SECURE,
+			    (char_u *)&p_dir, PV_NONE,
+			    {(char_u *)DFLT_DIR, (char_u *)0L}},
+    {"display",	    "dy",   P_STRING|P_VI_DEF|P_COMMA|P_RALL|P_NODUP,
+			    (char_u *)&p_dy, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"eadirection", "ead",  P_STRING|P_VI_DEF,
+#ifdef FEAT_VERTSPLIT
+			    (char_u *)&p_ead, PV_NONE,
+			    {(char_u *)"both", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"edcompatible","ed",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_ed, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"encoding",    "enc",  P_STRING|P_VI_DEF|P_RCLR,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_enc, PV_NONE,
+			    {(char_u *)ENC_DFLT, (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"endofline",   "eol",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
+			    (char_u *)&p_eol, PV_EOL,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"equalalways", "ea",   P_BOOL|P_VI_DEF|P_RALL,
+			    (char_u *)&p_ea, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"equalprg",    "ep",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_ep, OPT_BOTH(PV_EP),
+			    {(char_u *)"", (char_u *)0L}},
+    {"errorbells",  "eb",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_eb, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"errorfile",   "ef",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_ef, PV_NONE,
+			    {(char_u *)DFLT_ERRORFILE, (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"errorformat", "efm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_efm, OPT_BOTH(PV_EFM),
+			    {(char_u *)DFLT_EFM, (char_u *)0L},
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"esckeys",	    "ek",   P_BOOL|P_VIM,
+			    (char_u *)&p_ek, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)TRUE}},
+    {"eventignore", "ei",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_AUTOCMD
+			    (char_u *)&p_ei, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"expandtab",   "et",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_et, PV_ET,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"exrc",	    "ex",   P_BOOL|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_exrc, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"fileencoding","fenc", P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_RBUF|P_NO_MKRC,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_fenc, PV_FENC,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"fileencodings","fencs", P_STRING|P_VI_DEF|P_COMMA,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_fencs, PV_NONE,
+			    {(char_u *)"ucs-bom", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"fileformat",  "ff",   P_STRING|P_ALLOCED|P_VI_DEF|P_RSTAT|P_NO_MKRC,
+			    (char_u *)&p_ff, PV_FF,
+			    {(char_u *)DFLT_FF, (char_u *)0L}},
+    {"fileformats", "ffs",  P_STRING|P_VIM|P_COMMA|P_NODUP,
+			    (char_u *)&p_ffs, PV_NONE,
+			    {(char_u *)DFLT_FFS_VI, (char_u *)DFLT_FFS_VIM}},
+    {"filetype",    "ft",   P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
+#ifdef FEAT_AUTOCMD
+			    (char_u *)&p_ft, PV_FT,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"fillchars",   "fcs",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+			    (char_u *)&p_fcs, PV_NONE,
+			    {(char_u *)"vert:|,fold:-", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#endif
+			    },
+    {"fkmap",	    "fk",   P_BOOL|P_VI_DEF,
+#ifdef FEAT_FKMAP
+			    (char_u *)&p_fkmap, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"flash",	    "fl",   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+#ifdef FEAT_FOLDING
+    {"foldclose",   "fcl",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP|P_RWIN,
+			    (char_u *)&p_fcl, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"foldcolumn",  "fdc",  P_NUM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FDC,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"foldenable",  "fen",  P_BOOL|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FEN,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"foldexpr",    "fde",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+# ifdef FEAT_EVAL
+			    (char_u *)VAR_WIN, PV_FDE,
+			    {(char_u *)"0", (char_u *)NULL}
+# else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+# endif
+			    },
+    {"foldignore",  "fdi",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FDI,
+			    {(char_u *)"#", (char_u *)NULL}},
+    {"foldlevel",   "fdl",  P_NUM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FDL,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"foldlevelstart","fdls", P_NUM|P_VI_DEF,
+			    (char_u *)&p_fdls, PV_NONE,
+			    {(char_u *)-1L, (char_u *)0L}},
+    {"foldmarker",  "fmr",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|
+						       P_RWIN|P_COMMA|P_NODUP,
+			    (char_u *)VAR_WIN, PV_FMR,
+			    {(char_u *)"{{{,}}}", (char_u *)NULL}},
+    {"foldmethod",  "fdm",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FDM,
+			    {(char_u *)"manual", (char_u *)NULL}},
+    {"foldminlines","fml",  P_NUM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FML,
+			    {(char_u *)1L, (char_u *)0L}},
+    {"foldnestmax", "fdn",  P_NUM|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_FDN,
+			    {(char_u *)20L, (char_u *)0L}},
+    {"foldopen",    "fdo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_fdo, PV_NONE,
+		 {(char_u *)"block,hor,mark,percent,quickfix,search,tag,undo",
+							       (char_u *)0L}},
+    {"foldtext",    "fdt",  P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+# ifdef FEAT_EVAL
+			    (char_u *)VAR_WIN, PV_FDT,
+			    {(char_u *)"foldtext()", (char_u *)NULL}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+#endif
+    {"formatoptions","fo",  P_STRING|P_ALLOCED|P_VIM|P_FLAGLIST,
+			    (char_u *)&p_fo, PV_FO,
+			    {(char_u *)DFLT_FO_VI, (char_u *)DFLT_FO_VIM}},
+    {"formatprg",   "fp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_fp, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"gdefault",    "gd",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_gd, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"graphic",	    "gr",   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"grepformat",  "gfm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_gefm, PV_NONE,
+			    {(char_u *)DFLT_GREPFORMAT, (char_u *)0L},
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"grepprg",	    "gp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_gp, OPT_BOTH(PV_GP),
+			    {
+# ifdef WIN3264
+			    /* may be changed to "grep -n" in os_win32.c */
+			    (char_u *)"findstr /n",
+# else
+#  ifdef UNIX
+			    /* Add an extra file name so that grep will always
+			     * insert a file name in the match line. */
+			    (char_u *)"grep -n $* /dev/null",
+#  else
+#   ifdef VMS
+			    (char_u *)"SEARCH/NUMBERS ",
+#   else
+			    (char_u *)"grep -n ",
+#endif
+#endif
+# endif
+			    (char_u *)0L},
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"guicursor",    "gcr",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef CURSOR_SHAPE
+			    (char_u *)&p_guicursor, PV_NONE,
+			    {
+# ifdef FEAT_GUI
+				(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",
+# else	/* MSDOS or Win32 console */
+				(char_u *)"n-v-c:block,o:hor50,i-ci:hor15,r-cr:hor30,sm:block",
+# endif
+				    (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+				    },
+    {"guifont",	    "gfn",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
+#ifdef FEAT_GUI
+			    (char_u *)&p_guifont, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+				    },
+    {"guifontset",  "gfs",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA,
+#if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
+			    (char_u *)&p_guifontset, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+				    },
+    {"guifontwide", "gfw",  P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
+#if defined(FEAT_GUI) && defined(FEAT_MBYTE)
+			    (char_u *)&p_guifontwide, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+				    },
+    {"guiheadroom", "ghr",  P_NUM|P_VI_DEF,
+#if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
+			    (char_u *)&p_ghr, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)50L, (char_u *)0L}},
+    {"guioptions",  "go",   P_STRING|P_VI_DEF|P_RALL|P_FLAGLIST,
+#if defined(FEAT_GUI)
+			    (char_u *)&p_go, PV_NONE,
+# if defined(UNIX) && !defined(MACOS)
+			    {(char_u *)"agimrLtT", (char_u *)0L}
+# else
+			    {(char_u *)"gmrLtT", (char_u *)0L}
+# endif
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+				    },
+    {"guipty",	    NULL,   P_BOOL|P_VI_DEF,
+#if defined(FEAT_GUI)
+			    (char_u *)&p_guipty, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"hardtabs",    "ht",   P_NUM|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"helpfile",    "hf",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_hf, PV_NONE,
+			    {(char_u *)DFLT_HELPFILE, (char_u *)0L}},
+    {"helpheight",  "hh",   P_NUM|P_VI_DEF,
+#ifdef FEAT_WINDOWS
+			    (char_u *)&p_hh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)20L, (char_u *)0L}},
+    {"helplang",    "hlg",  P_STRING|P_VI_DEF|P_COMMA,
+#ifdef FEAT_MULTI_LANG
+			    (char_u *)&p_hlg, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+    },
+    {"hidden",	    "hid",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_hid, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"highlight",   "hl",   P_STRING|P_VI_DEF|P_RCLR|P_COMMA|P_NODUP,
+			    (char_u *)&p_hl, PV_NONE,
+			    {(char_u *)"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",
+				(char_u *)0L}},
+    {"history",	    "hi",   P_NUM|P_VIM,
+			    (char_u *)&p_hi, PV_NONE,
+			    {(char_u *)0L, (char_u *)20L}},
+    {"hkmap",	    "hk",   P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)&p_hkmap, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"hkmapp",	    "hkp",  P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)&p_hkmapp, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"hlsearch",    "hls",  P_BOOL|P_VI_DEF|P_VIM|P_RALL,
+			    (char_u *)&p_hls, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"icon",	    NULL,   P_BOOL|P_VI_DEF,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_icon, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"iconstring",  NULL,   P_STRING|P_VI_DEF,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_iconstring, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"ignorecase",  "ic",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_ic, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"imactivatekey","imak",P_STRING|P_VI_DEF,
+#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
+			    (char_u *)&p_imak, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"imcmdline",   "imc",  P_BOOL|P_VI_DEF,
+#ifdef USE_IM_CONTROL
+			    (char_u *)&p_imcmdline, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"imdisable",   "imd",  P_BOOL|P_VI_DEF,
+#ifdef USE_IM_CONTROL
+			    (char_u *)&p_imdisable, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+#ifdef __sgi
+			    {(char_u *)TRUE, (char_u *)0L}
+#else
+			    {(char_u *)FALSE, (char_u *)0L}
+#endif
+			    },
+    {"iminsert",    "imi",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_iminsert, PV_IMI,
+#ifdef B_IMODE_IM
+			    {(char_u *)B_IMODE_IM, (char_u *)0L}
+#else
+			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
+#endif
+			    },
+    {"imsearch",    "ims",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_imsearch, PV_IMS,
+#ifdef B_IMODE_IM
+			    {(char_u *)B_IMODE_IM, (char_u *)0L}
+#else
+			    {(char_u *)B_IMODE_NONE, (char_u *)0L}
+#endif
+			    },
+    {"include",	    "inc",  P_STRING|P_ALLOCED|P_VI_DEF,
+#ifdef FEAT_FIND_ID
+			    (char_u *)&p_inc, OPT_BOTH(PV_INC),
+			    {(char_u *)"^\\s*#\\s*include", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF,
+#if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
+			    (char_u *)&p_inex, PV_INEX,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"incsearch",   "is",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_is, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"indentexpr", "inde",  P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+			    (char_u *)&p_inde, PV_INDE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"indentkeys", "indk",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+			    (char_u *)&p_indk, PV_INDK,
+			    {(char_u *)"0{,0},:,0#,!^F,o,O,e", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"infercase",   "inf",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_inf, PV_INF,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"insertmode",  "im",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_im, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"isfname",	    "isf",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_isf, PV_NONE,
+			    {
+#ifdef BACKSLASH_IN_FILENAME
+				/* Excluded are: & and ^ are special in cmd.exe
+				 * ( and ) are used in text separating fnames */
+			    (char_u *)"@,48-57,/,\\,.,-,_,+,,,#,$,%,{,},[,],:,@-@,!,~,=",
+#else
+# ifdef AMIGA
+			    (char_u *)"@,48-57,/,.,-,_,+,,,$,:",
+# else
+#  ifdef VMS
+			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,<,>,[,],:,;,~",
+#  else /* UNIX et al. */
+#   ifdef EBCDIC
+			    (char_u *)"@,240-249,/,.,-,_,+,,,#,$,%,~,=",
+#   else
+			    (char_u *)"@,48-57,/,.,-,_,+,,,#,$,%,~,=",
+#   endif
+#  endif
+# endif
+#endif
+				(char_u *)0L}},
+    {"isident",	    "isi",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_isi, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+			    (char_u *)"@,48-57,_,128-167,224-235",
+#else
+# ifdef EBCDIC
+			    /* TODO: EBCDIC Check this! @ == isalpha()*/
+			    (char_u *)"@,240-249,_,66-73,81-89,98-105,"
+				    "112-120,128,140-142,156,158,172,"
+				    "174,186,191,203-207,219-225,235-239,"
+				    "251-254",
+# else
+			    (char_u *)"@,48-57,_,192-255",
+# endif
+#endif
+				(char_u *)0L}},
+    {"iskeyword",   "isk",  P_STRING|P_ALLOCED|P_VIM|P_COMMA|P_NODUP,
+			    (char_u *)&p_isk, PV_ISK,
+			    {
+#ifdef EBCDIC
+			     (char_u *)"@,240-249,_",
+			     /* TODO: EBCDIC Check this! @ == isalpha()*/
+			     (char_u *)"@,240-249,_,66-73,81-89,98-105,"
+				    "112-120,128,140-142,156,158,172,"
+				    "174,186,191,203-207,219-225,235-239,"
+				    "251-254",
+#else
+				(char_u *)"@,48-57,_",
+# if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+				(char_u *)"@,48-57,_,128-167,224-235"
+# else
+				(char_u *)"@,48-57,_,192-255"
+# endif
+#endif
+				}},
+    {"isprint",	    "isp",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
+			    (char_u *)&p_isp, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(MACOS) \
+		|| defined(VMS)
+			    (char_u *)"@,~-255",
+#else
+# ifdef EBCDIC
+			    /* all chars above 63 are printable */
+			    (char_u *)"63-255",
+# else
+			    (char_u *)"@,161-255",
+# endif
+#endif
+				(char_u *)0L}},
+    {"joinspaces",  "js",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_js, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"key",	    NULL,   P_STRING|P_ALLOCED|P_VI_DEF|P_NO_MKRC,
+#ifdef FEAT_CRYPT
+			    (char_u *)&p_key, PV_KEY,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"keymap",	    "kmp",  P_STRING|P_ALLOCED|P_VI_DEF|P_RBUF|P_RSTAT,
+#ifdef FEAT_KEYMAP
+			    (char_u *)&p_keymap, PV_KMAP,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#endif
+	},
+    {"keymodel",    "km",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_VISUAL
+			    (char_u *)&p_km, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"keywordprg",  "kp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_kp, OPT_BOTH(PV_KP),
+			    {
+#if defined(MSDOS) || defined(MSWIN)
+			    (char_u *)":help",
+#else
+#ifdef VMS
+			    (char_u *)"help",
+#else
+# if defined(OS2)
+			    (char_u *)"view /",
+# else
+#  ifdef USEMAN_S
+			    (char_u *)"man -s",
+#  else
+			    (char_u *)"man",
+#  endif
+# endif
+#endif
+#endif
+				(char_u *)0L}},
+    {"langmap",     "lmap", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_LANGMAP
+			    (char_u *)&p_langmap, PV_NONE,
+			    {(char_u *)"",	/* unmatched } */
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL,
+#endif
+				(char_u *)0L}},
+    {"langmenu",    "lm",   P_STRING|P_VI_DEF,
+#if defined(FEAT_MENU) && defined(FEAT_MULTI_LANG)
+			    (char_u *)&p_lm, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"laststatus",  "ls",   P_NUM|P_VI_DEF|P_RALL,
+#ifdef FEAT_WINDOWS
+			    (char_u *)&p_ls, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)1L, (char_u *)0L}},
+    {"lazyredraw",  "lz",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_lz, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"linebreak",   "lbr",  P_BOOL|P_VI_DEF|P_RWIN,
+#ifdef FEAT_LINEBREAK
+			    (char_u *)VAR_WIN, PV_LBR,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"lines",	    NULL,   P_NUM|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RCLR,
+			    (char_u *)&Rows, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(WIN3264) || defined(OS2)
+			    (char_u *)25L,
+#else
+			    (char_u *)24L,
+#endif
+					    (char_u *)0L}},
+    {"linespace",   "lsp",  P_NUM|P_VI_DEF|P_RCLR,
+#ifdef FEAT_GUI
+			    (char_u *)&p_linespace, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+#ifdef FEAT_GUI_W32
+			    {(char_u *)1L, (char_u *)0L}
+#else
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"lisp",	    NULL,   P_BOOL|P_VI_DEF,
+#ifdef FEAT_LISP
+			    (char_u *)&p_lisp, PV_LISP,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"lispwords",   "lw",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_LISP
+			    (char_u *)&p_lispwords, PV_NONE,
+			    {(char_u *)LISPWORD_VALUE, (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#endif
+			    },
+    {"list",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_LIST,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"listchars",   "lcs",  P_STRING|P_VI_DEF|P_RALL|P_COMMA|P_NODUP,
+			    (char_u *)&p_lcs, PV_NONE,
+			    {(char_u *)"eol:$", (char_u *)0L}},
+    {"loadplugins", "lpl",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_lpl, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"magic",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_magic, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"makeef",	    "mef",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_mef, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"makeprg",	    "mp",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_mp, OPT_BOTH(PV_MP),
+# ifdef VMS
+			    {(char_u *)"MMS", (char_u *)0L}
+# else
+			    {(char_u *)"make", (char_u *)0L}
+# endif
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"matchpairs",  "mps",  P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_mps, PV_MPS,
+			    {(char_u *)"(:),{:},[:]", (char_u *)0L}},
+    {"matchtime",   "mat",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_mat, PV_NONE,
+			    {(char_u *)5L, (char_u *)0L}},
+    {"maxfuncdepth", "mfd", P_NUM|P_VI_DEF,
+#ifdef FEAT_EVAL
+			    (char_u *)&p_mfd, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)100L, (char_u *)0L}},
+    {"maxmapdepth", "mmd",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_mmd, PV_NONE,
+			    {(char_u *)1000L, (char_u *)0L}},
+    {"maxmem",	    "mm",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_mm, PV_NONE,
+			    {(char_u *)DFLT_MAXMEM, (char_u *)0L}},
+    {"maxmemtot",   "mmt",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_mmt, PV_NONE,
+			    {(char_u *)DFLT_MAXMEMTOT, (char_u *)0L}},
+    {"menuitems",   "mis",  P_NUM|P_VI_DEF,
+#ifdef FEAT_MENU
+			    (char_u *)&p_mis, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)25L, (char_u *)0L}},
+    {"mesg",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"modeline",    "ml",   P_BOOL|P_VIM,
+			    (char_u *)&p_ml, PV_ML,
+			    {(char_u *)FALSE, (char_u *)TRUE}},
+    {"modelines",   "mls",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_mls, PV_NONE,
+			    {(char_u *)5L, (char_u *)0L}},
+    {"modifiable",  "ma",   P_BOOL|P_VI_DEF|P_NOGLOB,
+			    (char_u *)&p_ma, PV_MA,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"modified",    "mod",  P_BOOL|P_NO_MKRC|P_VI_DEF|P_RSTAT,
+			    (char_u *)&p_mod, PV_MOD,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"more",	    NULL,   P_BOOL|P_VIM,
+			    (char_u *)&p_more, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)TRUE}},
+    {"mouse",	    NULL,   P_STRING|P_VI_DEF|P_FLAGLIST,
+			    (char_u *)&p_mouse, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(WIN3264)
+				(char_u *)"a",
+#else
+				(char_u *)"",
+#endif
+				(char_u *)0L}},
+    {"mousefocus",   "mousef", P_BOOL|P_VI_DEF,
+#ifdef FEAT_GUI
+			    (char_u *)&p_mousef, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"mousehide",   "mh",   P_BOOL|P_VI_DEF,
+#ifdef FEAT_GUI
+			    (char_u *)&p_mh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"mousemodel",  "mousem", P_STRING|P_VI_DEF,
+			    (char_u *)&p_mousem, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(MSWIN)
+				(char_u *)"popup",
+#else
+# if defined(MACOS)
+				(char_u *)"popup_setpos",
+# else
+				(char_u *)"extend",
+# endif
+#endif
+				(char_u *)0L}},
+    {"mouseshape",  "mouses",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_MOUSESHAPE
+			    (char_u *)&p_mouseshape, PV_NONE,
+			    {(char_u *)"i-r:beam,s:updown,sd:udsizing,vs:leftright,vd:lrsizing,m:no,ml:up-arrow,v:rightup-arrow", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"mousetime",   "mouset",	P_NUM|P_VI_DEF,
+			    (char_u *)&p_mouset, PV_NONE,
+			    {(char_u *)500L, (char_u *)0L}},
+    {"novice",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"nrformats",   "nf",   P_STRING|P_ALLOCED|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_nf, PV_NF,
+			    {(char_u *)"octal,hex", (char_u *)0L}},
+    {"number",	    "nu",   P_BOOL|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_NU,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"open",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"optimize",    "opt",  P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"osfiletype",  "oft",  P_STRING|P_ALLOCED|P_VI_DEF,
+#ifdef FEAT_OSFILETYPE
+			    (char_u *)&p_oft, PV_OFT,
+			    {(char_u *)DFLT_OFT, (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"paragraphs",  "para", P_STRING|P_VI_DEF,
+			    (char_u *)&p_para, PV_NONE,
+			    {(char_u *)"IPLPPPQPP LIpplpipbp", (char_u *)0L}},
+    {"paste",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_paste, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"pastetoggle", "pt",   P_STRING|P_VI_DEF,
+			    (char_u *)&p_pt, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"patchexpr",   "pex",  P_STRING|P_VI_DEF|P_SECURE,
+#if defined(FEAT_DIFF) && defined(FEAT_EVAL)
+			    (char_u *)&p_pex, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"patchmode",   "pm",   P_STRING|P_VI_DEF,
+			    (char_u *)&p_pm, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"path",	    "pa",   P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_path, OPT_BOTH(PV_PATH),
+			    {
+#if defined AMIGA || defined MSDOS || defined MSWIN
+			    (char_u *)".,,",
+#else
+# if defined(__EMX__)
+			    (char_u *)".,/emx/include,,",
+# else /* Unix, probably */
+			    (char_u *)".,/usr/include,,",
+# endif
+#endif
+				(char_u *)0L}},
+    {"preserveindent", "pi", P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_pi, PV_PI,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"previewheight", "pvh",P_NUM|P_VI_DEF,
+#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
+			    (char_u *)&p_pvh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)12L, (char_u *)0L}},
+    {"previewwindow", "pvw", P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
+#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
+			    (char_u *)VAR_WIN, PV_PVW,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"printdevice", "pdev", P_STRING|P_VI_DEF,
+#ifdef FEAT_PRINTER
+			    (char_u *)&p_pdev, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"printencoding", "penc", P_STRING|P_VI_DEF,
+#ifdef FEAT_POSTSCRIPT
+			    (char_u *)&p_penc, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"printexpr", "pexpr",  P_STRING|P_VI_DEF,
+#ifdef FEAT_POSTSCRIPT
+			    (char_u *)&p_pexpr, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"printfont", "pfn",    P_STRING|P_VI_DEF,
+#ifdef FEAT_PRINTER
+			    (char_u *)&p_pfn, PV_NONE,
+			    {
+# ifdef MSWIN
+				(char_u *)"Courier_New:h10",
+# else
+				(char_u *)"courier",
+# endif
+				(char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"printheader", "pheader",  P_STRING|P_VI_DEF|P_GETTEXT,
+#ifdef FEAT_PRINTER
+			    (char_u *)&p_header, PV_NONE,
+			    {(char_u *)N_("%<%f%h%m%=Page %N"), (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"printoptions", "popt", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_PRINTER
+			    (char_u *)&p_popt, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"prompt",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"readonly",    "ro",   P_BOOL|P_VI_DEF|P_RSTAT|P_NOGLOB,
+			    (char_u *)&p_ro, PV_RO,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"redraw",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"remap",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_remap, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"report",	    NULL,   P_NUM|P_VI_DEF,
+			    (char_u *)&p_report, PV_NONE,
+			    {(char_u *)2L, (char_u *)0L}},
+    {"restorescreen", "rs", P_BOOL|P_VI_DEF,
+#ifdef WIN3264
+			    (char_u *)&p_rs, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"revins",	    "ri",   P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)&p_ri, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"rightleft",   "rl",   P_BOOL|P_VI_DEF|P_RWIN,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)VAR_WIN, PV_RL,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"rightleftcmd", "rlc", P_STRING|P_ALLOCED|P_VI_DEF|P_RWIN,
+#ifdef FEAT_RIGHTLEFT
+			    (char_u *)VAR_WIN, PV_RLC,
+			    {(char_u *)"search", (char_u *)NULL}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"ruler",	    "ru",   P_BOOL|P_VI_DEF|P_VIM|P_RSTAT,
+#ifdef FEAT_CMDL_INFO
+			    (char_u *)&p_ru, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"rulerformat", "ruf",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
+#ifdef FEAT_STL_OPT
+			    (char_u *)&p_ruf, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"runtimepath", "rtp",  P_STRING|P_VI_DEF|P_EXPAND|P_COMMA|P_NODUP|P_SECURE,
+			    (char_u *)&p_rtp, PV_NONE,
+			    {(char_u *)DFLT_RUNTIMEPATH, (char_u *)0L}},
+    {"scroll",	    "scr",  P_NUM|P_NO_MKRC|P_VI_DEF,
+			    (char_u *)VAR_WIN, PV_SCROLL,
+			    {(char_u *)12L, (char_u *)0L}},
+    {"scrollbind",  "scb",  P_BOOL|P_VI_DEF,
+#ifdef FEAT_SCROLLBIND
+			    (char_u *)VAR_WIN, PV_SCBIND,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"scrolljump",  "sj",   P_NUM|P_VI_DEF|P_VIM,
+			    (char_u *)&p_sj, PV_NONE,
+			    {(char_u *)1L, (char_u *)0L}},
+    {"scrolloff",   "so",   P_NUM|P_VI_DEF|P_VIM|P_RALL,
+			    (char_u *)&p_so, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"scrollopt",   "sbo",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_SCROLLBIND
+			    (char_u *)&p_sbo, PV_NONE,
+			    {(char_u *)"ver,jump", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"sections",    "sect", P_STRING|P_VI_DEF,
+			    (char_u *)&p_sections, PV_NONE,
+			    {(char_u *)"SHNHH HUnhsh", (char_u *)0L}},
+    {"secure",	    NULL,   P_BOOL|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_secure, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"selection",   "sel",  P_STRING|P_VI_DEF,
+#ifdef FEAT_VISUAL
+			    (char_u *)&p_sel, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"inclusive", (char_u *)0L}},
+    {"selectmode",  "slm",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_VISUAL
+			    (char_u *)&p_slm, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"sessionoptions", "ssop", P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_SESSION
+			    (char_u *)&p_ssop, PV_NONE,
+		 {(char_u *)"blank,buffers,curdir,folds,help,options,winsize",
+							       (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"shell",	    "sh",   P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_sh, PV_NONE,
+			    {
+#ifdef VMS
+			    (char_u *)"-",
+#else
+# if defined(MSDOS)
+			    (char_u *)"command",
+# else
+#  if defined(WIN16)
+			    (char_u *)"command.com",
+#  else
+#   if defined(WIN3264)
+			    (char_u *)"",	/* set in set_init_1() */
+#   else
+#    if defined(OS2)
+			    (char_u *)"cmd.exe",
+#    else
+#     if defined(ARCHIE)
+			    (char_u *)"gos",
+#     else
+			    (char_u *)"sh",
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+#endif /* VMS */
+				(char_u *)0L}},
+    {"shellcmdflag","shcf", P_STRING|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_shcf, PV_NONE,
+			    {
+#if defined(MSDOS) || defined(MSWIN)
+			    (char_u *)"/c",
+#else
+# if defined(OS2)
+			    (char_u *)"/c",
+# else
+			    (char_u *)"-c",
+# endif
+#endif
+				(char_u *)0L}},
+    {"shellpipe",   "sp",   P_STRING|P_VI_DEF|P_SECURE,
+#ifdef FEAT_QUICKFIX
+			    (char_u *)&p_sp, PV_NONE,
+			    {
+#if defined(UNIX) || defined(OS2)
+# ifdef ARCHIE
+			    (char_u *)"2>",
+# else
+			    (char_u *)"| tee",
+# endif
+#else
+			    (char_u *)">",
+#endif
+				(char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+    },
+    {"shellquote",  "shq",  P_STRING|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_shq, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"shellredir",  "srr",  P_STRING|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_srr, PV_NONE,
+			    {(char_u *)">", (char_u *)0L}},
+    {"shellslash",  "ssl",   P_BOOL|P_VI_DEF,
+#ifdef BACKSLASH_IN_FILENAME
+			    (char_u *)&p_ssl, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"shelltype",   "st",   P_NUM|P_VI_DEF,
+#ifdef AMIGA
+			    (char_u *)&p_st, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)0L, (char_u *)0L}},
+    {"shellxquote", "sxq",  P_STRING|P_VI_DEF|P_SECURE,
+			    (char_u *)&p_sxq, PV_NONE,
+			    {
+#if defined(UNIX) && defined(USE_SYSTEM) && !defined(__EMX__)
+			    (char_u *)"\"",
+#else
+			    (char_u *)"",
+#endif
+				(char_u *)0L}},
+    {"shiftround",  "sr",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_sr, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"shiftwidth",  "sw",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_sw, PV_SW,
+			    {(char_u *)8L, (char_u *)0L}},
+    {"shortmess",   "shm",  P_STRING|P_VIM|P_FLAGLIST,
+			    (char_u *)&p_shm, PV_NONE,
+			    {(char_u *)"", (char_u *)"filnxtToO"}},
+    {"shortname",   "sn",   P_BOOL|P_VI_DEF,
+#ifdef SHORT_FNAME
+			    (char_u *)NULL, PV_NONE,
+#else
+			    (char_u *)&p_sn, PV_SN,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
+#ifdef FEAT_LINEBREAK
+			    (char_u *)&p_sbr, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"showcmd",	    "sc",   P_BOOL|P_VIM,
+#ifdef FEAT_CMDL_INFO
+			    (char_u *)&p_sc, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE,
+#ifdef UNIX
+				(char_u *)FALSE
+#else
+				(char_u *)TRUE
+#endif
+				}},
+    {"showfulltag", "sft",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_sft, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"showmatch",   "sm",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_sm, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"showmode",    "smd",  P_BOOL|P_VIM,
+			    (char_u *)&p_smd, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)TRUE}},
+    {"sidescroll",  "ss",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_ss, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"sidescrolloff", "siso", P_NUM|P_VI_DEF|P_VIM|P_RBUF,
+			    (char_u *)&p_siso, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"slowopen",    "slow", P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"smartcase",   "scs",  P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_scs, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"smartindent", "si",   P_BOOL|P_VI_DEF|P_VIM,
+#ifdef FEAT_SMARTINDENT
+			    (char_u *)&p_si, PV_SI,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"smarttab",    "sta",  P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_sta, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"softtabstop", "sts",  P_NUM|P_VI_DEF|P_VIM,
+			    (char_u *)&p_sts, PV_STS,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"sourceany",   NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"splitbelow",  "sb",   P_BOOL|P_VI_DEF,
+#ifdef FEAT_WINDOWS
+			    (char_u *)&p_sb, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"splitright",  "spr",  P_BOOL|P_VI_DEF,
+#ifdef FEAT_VERTSPLIT
+			    (char_u *)&p_spr, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"startofline", "sol",  P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_sol, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"statusline"  ,"stl",  P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
+#ifdef FEAT_STL_OPT
+			    (char_u *)&p_stl, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"suffixes",    "su",   P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_su, PV_NONE,
+			    {(char_u *)".bak,~,.o,.h,.info,.swp,.obj",
+				(char_u *)0L}},
+    {"suffixesadd", "sua",  P_STRING|P_VI_DEF|P_ALLOCED|P_COMMA|P_NODUP,
+#if defined(FEAT_SEARCHPATH)
+			    (char_u *)&p_sua, PV_SUA,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"swapfile",    "swf",  P_BOOL|P_VI_DEF|P_RSTAT,
+			    (char_u *)&p_swf, PV_SWF,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"swapsync",    "sws",  P_STRING|P_VI_DEF,
+			    (char_u *)&p_sws, PV_NONE,
+			    {(char_u *)"fsync", (char_u *)0L}},
+    {"switchbuf",   "swb",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_swb, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"syntax",	    "syn",  P_STRING|P_ALLOCED|P_VI_DEF|P_NOGLOB,
+#ifdef FEAT_SYN_HL
+			    (char_u *)&p_syn, PV_SYN,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"tabstop",	    "ts",   P_NUM|P_VI_DEF|P_RBUF,
+			    (char_u *)&p_ts, PV_TS,
+			    {(char_u *)8L, (char_u *)0L}},
+    {"tagbsearch",  "tbs",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_tbs, PV_NONE,
+#ifdef VMS	/* binary searching doesn't appear to work on VMS */
+			    {(char_u *)0L, (char_u *)0L}
+#else
+			    {(char_u *)TRUE, (char_u *)0L}
+#endif
+			    },
+    {"taglength",   "tl",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_tl, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"tagrelative", "tr",   P_BOOL|P_VIM,
+			    (char_u *)&p_tr, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)TRUE}},
+    {"tags",	    "tag",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_tags, OPT_BOTH(PV_TAGS),
+			    {
+#if defined(FEAT_EMACS_TAGS) && !defined(CASE_INSENSITIVE_FILENAME)
+			    (char_u *)"./tags,./TAGS,tags,TAGS",
+#else
+			    (char_u *)"./tags,tags",
+#endif
+				(char_u *)0L}},
+    {"tagstack",    "tgst", P_BOOL|P_VI_DEF,
+			    (char_u *)&p_tgst, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"term",	    NULL,   P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
+			    (char_u *)&T_NAME, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"termbidi", "tbidi",   P_BOOL|P_VI_DEF,
+#ifdef FEAT_ARABIC
+			    (char_u *)&p_tbidi, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"termencoding", "tenc", P_STRING|P_VI_DEF|P_RCLR,
+#ifdef FEAT_MBYTE
+			    (char_u *)&p_tenc, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"terse",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_terse, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"textauto",    "ta",   P_BOOL|P_VIM,
+			    (char_u *)&p_ta, PV_NONE,
+			    {(char_u *)DFLT_TEXTAUTO, (char_u *)TRUE}},
+    {"textmode",    "tx",   P_BOOL|P_VI_DEF|P_NO_MKRC,
+			    (char_u *)&p_tx, PV_TX,
+			    {
+#ifdef USE_CRNL
+			    (char_u *)TRUE,
+#else
+			    (char_u *)FALSE,
+#endif
+				(char_u *)0L}},
+    {"textwidth",   "tw",   P_NUM|P_VI_DEF|P_VIM,
+			    (char_u *)&p_tw, PV_TW,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"thesaurus",   "tsr",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_INS_EXPAND
+			    (char_u *)&p_tsr, OPT_BOTH(PV_TSR),
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"tildeop",	    "top",  P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_to, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"timeout",	    "to",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_timeout, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"timeoutlen",  "tm",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_tm, PV_NONE,
+			    {(char_u *)1000L, (char_u *)0L}},
+    {"title",	    NULL,   P_BOOL|P_VI_DEF,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_title, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"titlelen",    NULL,   P_NUM|P_VI_DEF,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_titlelen, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)85L, (char_u *)0L}},
+    {"titleold",    NULL,   P_STRING|P_VI_DEF|P_GETTEXT,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_titleold, PV_NONE,
+			    {(char_u *)N_("Thanks for flying Vim"),
+							       (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"titlestring", NULL,   P_STRING|P_VI_DEF,
+#ifdef FEAT_TITLE
+			    (char_u *)&p_titlestring, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+#if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
+    {"toolbar",     "tb",   P_STRING|P_COMMA|P_VI_DEF|P_NODUP,
+			    (char_u *)&p_toolbar, PV_NONE,
+			    {(char_u *)"icons,tooltips", (char_u *)0L}},
+#endif
+#if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
+    {"toolbariconsize",	"tbis", P_STRING|P_VI_DEF,
+			    (char_u *)&p_tbis, PV_NONE,
+			    {(char_u *)"small", (char_u *)0L}},
+#endif
+    {"ttimeout",    NULL,   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_ttimeout, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"ttimeoutlen", "ttm",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_ttm, PV_NONE,
+			    {(char_u *)-1L, (char_u *)0L}},
+    {"ttybuiltin",  "tbi",  P_BOOL|P_VI_DEF,
+			    (char_u *)&p_tbi, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"ttyfast",	    "tf",   P_BOOL|P_NO_MKRC|P_VI_DEF,
+			    (char_u *)&p_tf, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"ttymouse",    "ttym", P_STRING|P_NODEFAULT|P_NO_MKRC|P_VI_DEF,
+#if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
+			    (char_u *)&p_ttym, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"ttyscroll",   "tsl",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_ttyscroll, PV_NONE,
+			    {(char_u *)999L, (char_u *)0L}},
+    {"ttytype",	    "tty",  P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
+			    (char_u *)&T_NAME, PV_NONE,
+			    {(char_u *)"", (char_u *)0L}},
+    {"undolevels",  "ul",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_ul, PV_NONE,
+			    {
+#if defined(UNIX) || defined(WIN3264) || defined(OS2) || defined(VMS)
+			    (char_u *)1000L,
+#else
+			    (char_u *)100L,
+#endif
+				(char_u *)0L}},
+    {"updatecount", "uc",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_uc, PV_NONE,
+			    {(char_u *)200L, (char_u *)0L}},
+    {"updatetime",  "ut",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_ut, PV_NONE,
+			    {(char_u *)4000L, (char_u *)0L}},
+    {"verbose",	    "vbs",  P_NUM|P_VI_DEF,
+			    (char_u *)&p_verbose, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"viewdir",     "vdir", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE,
+#ifdef FEAT_SESSION
+			    (char_u *)&p_vdir, PV_NONE,
+			    {(char_u *)DFLT_VDIR, (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"viewoptions", "vop",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_SESSION
+			    (char_u *)&p_vop, PV_NONE,
+			    {(char_u *)"folds,options,cursor", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"viminfo",	    "vi",   P_STRING|P_COMMA|P_NODUP|P_SECURE,
+#ifdef FEAT_VIMINFO
+			    (char_u *)&p_viminfo, PV_NONE,
+#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+			    {(char_u *)"", (char_u *)"'20,<50,s10,h,rA:,rB:"}
+#else
+# ifdef AMIGA
+			    {(char_u *)"",
+				 (char_u *)"'20,<50,s10,h,rdf0:,rdf1:,rdf2:"}
+# else
+			    {(char_u *)"", (char_u *)"'20,<50,s10,h"}
+# endif
+#endif
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"virtualedit", "ve",   P_STRING|P_COMMA|P_NODUP|P_VI_DEF|P_VIM,
+#ifdef FEAT_VIRTUALEDIT
+			    (char_u *)&p_ve, PV_NONE,
+			    {(char_u *)"", (char_u *)""}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}
+#endif
+			    },
+    {"visualbell",  "vb",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_vb, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"w300",	    NULL,   P_NUM|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"w1200",	    NULL,   P_NUM|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"w9600",	    NULL,   P_NUM|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"warn",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_warn, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"weirdinvert", "wiv",  P_BOOL|P_VI_DEF|P_RCLR,
+			    (char_u *)&p_wiv, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"whichwrap",   "ww",   P_STRING|P_VIM|P_COMMA|P_FLAGLIST,
+			    (char_u *)&p_ww, PV_NONE,
+			    {(char_u *)"", (char_u *)"b,s"}},
+    {"wildchar",    "wc",   P_NUM|P_VIM,
+			    (char_u *)&p_wc, PV_NONE,
+			    {(char_u *)(long)Ctrl_E, (char_u *)(long)TAB}},
+    {"wildcharm",   "wcm",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_wcm, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+#ifdef FEAT_WILDIGN
+			    (char_u *)&p_wig, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)"", (char_u *)0L}},
+    {"wildmenu",    "wmnu", P_BOOL|P_VI_DEF,
+#ifdef FEAT_WILDMENU
+			    (char_u *)&p_wmnu, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"wildmode",    "wim",  P_STRING|P_VI_DEF|P_COMMA|P_NODUP,
+			    (char_u *)&p_wim, PV_NONE,
+			    {(char_u *)"full", (char_u *)0L}},
+    {"winaltkeys",  "wak",  P_STRING|P_VI_DEF,
+#ifdef FEAT_WAK
+			    (char_u *)&p_wak, PV_NONE,
+			    {(char_u *)"menu", (char_u *)0L}
+#else
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)NULL, (char_u *)0L}
+#endif
+			    },
+    {"window",	    "wi",   P_NUM|P_VI_DEF,
+			    (char_u *)NULL, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"winheight",   "wh",   P_NUM|P_VI_DEF,
+#ifdef FEAT_WINDOWS
+			    (char_u *)&p_wh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)1L, (char_u *)0L}},
+    {"winfixheight", "wfh", P_BOOL|P_VI_DEF|P_RSTAT,
+#if defined(FEAT_WINDOWS)
+			    (char_u *)VAR_WIN, PV_WFH,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"winminheight", "wmh", P_NUM|P_VI_DEF,
+#ifdef FEAT_WINDOWS
+			    (char_u *)&p_wmh, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)1L, (char_u *)0L}},
+    {"winminwidth", "wmw", P_NUM|P_VI_DEF,
+#ifdef FEAT_VERTSPLIT
+			    (char_u *)&p_wmw, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)1L, (char_u *)0L}},
+    {"winwidth",   "wiw",   P_NUM|P_VI_DEF,
+#ifdef FEAT_VERTSPLIT
+			    (char_u *)&p_wiw, PV_NONE,
+#else
+			    (char_u *)NULL, PV_NONE,
+#endif
+			    {(char_u *)20L, (char_u *)0L}},
+    {"wrap",	    NULL,   P_BOOL|P_VI_DEF|P_RWIN,
+			    (char_u *)VAR_WIN, PV_WRAP,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"wrapmargin",  "wm",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_wm, PV_WM,
+			    {(char_u *)0L, (char_u *)0L}},
+    {"wrapscan",    "ws",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_ws, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"write",	    NULL,   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_write, PV_NONE,
+			    {(char_u *)TRUE, (char_u *)0L}},
+    {"writeany",    "wa",   P_BOOL|P_VI_DEF,
+			    (char_u *)&p_wa, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)0L}},
+    {"writebackup", "wb",   P_BOOL|P_VI_DEF|P_VIM,
+			    (char_u *)&p_wb, PV_NONE,
+			    {
+#ifdef FEAT_WRITEBACKUP
+			    (char_u *)TRUE,
+#else
+			    (char_u *)FALSE,
+#endif
+				(char_u *)0L}},
+    {"writedelay",  "wd",   P_NUM|P_VI_DEF,
+			    (char_u *)&p_wd, PV_NONE,
+			    {(char_u *)0L, (char_u *)0L}},
+
+/* terminal output codes */
+#define p_term(sss, vvv)   {sss, NULL, P_STRING|P_VI_DEF|P_RALL, \
+			    (char_u *)&vvv, PV_NONE, \
+			    {(char_u *)"", (char_u *)0L}},
+
+    p_term("t_AB", T_CAB)
+    p_term("t_AF", T_CAF)
+    p_term("t_AL", T_CAL)
+    p_term("t_al", T_AL)
+    p_term("t_bc", T_BC)
+    p_term("t_cd", T_CD)
+    p_term("t_ce", T_CE)
+    p_term("t_cl", T_CL)
+    p_term("t_cm", T_CM)
+    p_term("t_Co", T_CCO)
+    p_term("t_CS", T_CCS)
+    p_term("t_cs", T_CS)
+#ifdef FEAT_VERTSPLIT
+    p_term("t_CV", T_CSV)
+#endif
+    p_term("t_ut", T_UT)
+    p_term("t_da", T_DA)
+    p_term("t_db", T_DB)
+    p_term("t_DL", T_CDL)
+    p_term("t_dl", T_DL)
+    p_term("t_fs", T_FS)
+    p_term("t_IE", T_CIE)
+    p_term("t_IS", T_CIS)
+    p_term("t_ke", T_KE)
+    p_term("t_ks", T_KS)
+    p_term("t_le", T_LE)
+    p_term("t_mb", T_MB)
+    p_term("t_md", T_MD)
+    p_term("t_me", T_ME)
+    p_term("t_mr", T_MR)
+    p_term("t_ms", T_MS)
+    p_term("t_nd", T_ND)
+    p_term("t_op", T_OP)
+    p_term("t_RI", T_CRI)
+    p_term("t_RV", T_CRV)
+    p_term("t_Sb", T_CSB)
+    p_term("t_Sf", T_CSF)
+    p_term("t_se", T_SE)
+    p_term("t_so", T_SO)
+    p_term("t_sr", T_SR)
+    p_term("t_ts", T_TS)
+    p_term("t_te", T_TE)
+    p_term("t_ti", T_TI)
+    p_term("t_ue", T_UE)
+    p_term("t_us", T_US)
+    p_term("t_vb", T_VB)
+    p_term("t_ve", T_VE)
+    p_term("t_vi", T_VI)
+    p_term("t_vs", T_VS)
+    p_term("t_WP", T_CWP)
+    p_term("t_WS", T_CWS)
+    p_term("t_xs", T_XS)
+    p_term("t_ZH", T_CZH)
+    p_term("t_ZR", T_CZR)
+
+/* terminal key codes are not in here */
+
+    {NULL, NULL, 0, NULL, PV_NONE, {NULL, NULL}}	/* end marker */
+};
+
+#define PARAM_COUNT (sizeof(options) / sizeof(struct vimoption))
+
+#ifdef FEAT_MBYTE
+static char *(p_ambw_values[]) = {"single", "double", NULL};
+#endif
+static char *(p_bg_values[]) = {"light", "dark", NULL};
+static char *(p_nf_values[]) = {"octal", "hex", "alpha", NULL};
+static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL};
+#ifdef FEAT_WAK
+static char *(p_wak_values[]) = {"yes", "menu", "no", NULL};
+#endif
+static char *(p_mousem_values[]) = {"extend", "popup", "popup_setpos", "mac", NULL};
+#ifdef FEAT_VISUAL
+static char *(p_sel_values[]) = {"inclusive", "exclusive", "old", NULL};
+static char *(p_slm_values[]) = {"mouse", "key", "cmd", NULL};
+#endif
+#ifdef FEAT_VISUAL
+static char *(p_km_values[]) = {"startsel", "stopsel", NULL};
+#endif
+#ifdef FEAT_BROWSE
+static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL};
+#endif
+#ifdef FEAT_SCROLLBIND
+static char *(p_scbopt_values[]) = {"ver", "hor", "jump", NULL};
+#endif
+static char *(p_swb_values[]) = {"useopen", "split", NULL};
+static char *(p_debug_values[]) = {"msg", NULL};
+#ifdef FEAT_VERTSPLIT
+static char *(p_ead_values[]) = {"both", "ver", "hor", NULL};
+#endif
+#if defined(FEAT_QUICKFIX)
+static char *(p_buftype_values[]) = {"nofile", "nowrite", "quickfix", "help", NULL};
+static char *(p_bufhidden_values[]) = {"hide", "unload", "delete", "wipe", NULL};
+#endif
+static char *(p_bs_values[]) = {"indent", "eol", "start", NULL};
+#ifdef FEAT_FOLDING
+static char *(p_fdm_values[]) = {"manual", "expr", "marker", "indent", "syntax",
+#ifdef FEAT_DIFF
+				"diff",
+#endif
+				NULL};
+static char *(p_fcl_values[]) = {"all", NULL};
+#endif
+
+static void set_option_default __ARGS((int, int opt_flags, int compatible));
+static void set_options_default __ARGS((int opt_flags));
+static char_u *illegal_char __ARGS((char_u *, int));
+static int string_to_key __ARGS((char_u *arg));
+#ifdef FEAT_CMDWIN
+static char_u *check_cedit __ARGS((void));
+#endif
+#ifdef FEAT_TITLE
+static void did_set_title __ARGS((int icon));
+#endif
+static char_u *option_expand __ARGS((int opt_idx, char_u *val));
+static void didset_options __ARGS((void));
+static void check_string_option __ARGS((char_u **pp));
+static void set_string_option_global __ARGS((int opt_idx, char_u **varp));
+static void set_string_option __ARGS((int opt_idx, char_u *value, int opt_flags));
+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));
+static char_u *set_chars_option __ARGS((char_u **varp));
+#ifdef FEAT_CLIPBOARD
+static char_u *check_clipboard_option __ARGS((void));
+#endif
+static char_u *set_bool_option __ARGS((int opt_idx, char_u *varp, int value, int opt_flags));
+static char_u *set_num_option __ARGS((int opt_idx, char_u *varp, long value, char_u *errbuf, int opt_flags));
+static void check_redraw __ARGS((long_u flags));
+static int findoption __ARGS((char_u *));
+static int find_key_option __ARGS((char_u *));
+static void showoptions __ARGS((int all, int opt_flags));
+static int optval_default __ARGS((struct vimoption *, char_u *varp));
+static void showoneopt __ARGS((struct vimoption *, int opt_flags));
+static int put_setstring __ARGS((FILE *fd, char *cmd, char *name, char_u **valuep, int expand));
+static int put_setnum __ARGS((FILE *fd, char *cmd, char *name, long *valuep));
+static int put_setbool __ARGS((FILE *fd, char *cmd, char *name, int value));
+static int  istermoption __ARGS((struct vimoption *));
+static char_u *get_varp_scope __ARGS((struct vimoption *p, int opt_flags));
+static char_u *get_varp __ARGS((struct vimoption *));
+static void option_value2string __ARGS((struct vimoption *, int opt_flags));
+static int wc_use_keyname __ARGS((char_u *varp, long *wcp));
+#ifdef FEAT_LANGMAP
+static void langmap_init __ARGS((void));
+static void langmap_set __ARGS((void));
+#endif
+static void paste_option_changed __ARGS((void));
+static void compatible_set __ARGS((void));
+#ifdef FEAT_LINEBREAK
+static void fill_breakat_flags __ARGS((void));
+#endif
+static int opt_strings_flags __ARGS((char_u *val, char **values, unsigned *flagp, int list));
+static int check_opt_strings __ARGS((char_u *val, char **values, int));
+static int check_opt_wim __ARGS((void));
+
+/*
+ * Initialize the options, first part.
+ *
+ * Called only once from main(), just after creating the first buffer.
+ */
+    void
+set_init_1()
+{
+    char_u	*p;
+    int		opt_idx;
+    long	n;
+
+#ifdef FEAT_LANGMAP
+    langmap_init();
+#endif
+
+    /* Be Vi compatible by default */
+    p_cp = TRUE;
+
+    /*
+     * Find default value for 'shell' option.
+     */
+    if ((p = mch_getenv((char_u *)"SHELL")) != NULL
+#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
+# ifdef __EMX__
+	    || (p = mch_getenv((char_u *)"EMXSHELL")) != NULL
+# endif
+	    || (p = mch_getenv((char_u *)"COMSPEC")) != NULL
+# ifdef WIN3264
+	    || (p = default_shell()) != NULL
+# endif
+#endif
+       )
+	set_string_default("sh", p);
+
+#ifdef FEAT_WILDIGN
+    /*
+     * Set the default for 'backupskip' to include environment variables for
+     * temp files.
+     */
+    {
+# ifdef UNIX
+	static char	*(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
+# else
+	static char	*(names[3]) = {"TMPDIR", "TEMP", "TMP"};
+# endif
+	int	len;
+	garray_T ga;
+
+	ga_init2(&ga, 1, 100);
+	for (n = 0; n < (long)(sizeof(names) / sizeof(char *)); ++n)
+	{
+# ifdef UNIX
+	    if (*names[n] == NUL)
+		p = (char_u *)"/tmp";
+	    else
+# endif
+		p = mch_getenv((char_u *)names[n]);
+	    if (p != NULL && *p != NUL)
+	    {
+		/* First time count the NUL, otherwise count the ','. */
+		len = STRLEN(p) + 3;
+		if (ga_grow(&ga, len) == OK)
+		{
+		    if (ga.ga_len > 0)
+			STRCAT(ga.ga_data, ",");
+		    STRCAT(ga.ga_data, p);
+		    add_pathsep(ga.ga_data);
+		    STRCAT(ga.ga_data, "*");
+		    ga.ga_room -= len;
+		    ga.ga_len += len;
+		}
+	    }
+	}
+	if (ga.ga_data != NULL)
+	{
+	    set_string_default("bsk", ga.ga_data);
+	    vim_free(ga.ga_data);
+	}
+    }
+#endif
+
+    /*
+     * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
+     */
+    opt_idx = findoption((char_u *)"maxmemtot");
+#if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
+    if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L)
+#endif
+    {
+#ifdef HAVE_AVAIL_MEM
+	/* Use amount of memory available at this moment. */
+	n = (mch_avail_mem(FALSE) >> 11);
+#else
+# ifdef HAVE_TOTAL_MEM
+	/* Use amount of memory available to Vim. */
+	n = (mch_total_mem(FALSE) >> 11);
+# else
+	n = (0x7fffffff >> 11);
+# endif
+#endif
+	options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
+	opt_idx = findoption((char_u *)"maxmem");
+#if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
+	if ((long)options[opt_idx].def_val[VI_DEFAULT] > n
+			  || (long)options[opt_idx].def_val[VI_DEFAULT] == 0L)
+#endif
+	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
+    }
+
+#ifdef FEAT_GUI_W32
+    /* force 'shortname' for Win32s */
+    if (gui_is_win32s())
+	options[findoption((char_u *)"shortname")].def_val[VI_DEFAULT] =
+							       (char_u *)TRUE;
+#endif
+
+#ifdef FEAT_SEARCHPATH
+    {
+	char_u	*cdpath;
+	char_u	*buf;
+	int	i;
+	int	j;
+
+	/* Initialize the 'cdpath' option's default value. */
+	cdpath = mch_getenv((char_u *)"CDPATH");
+	if (cdpath != NULL)
+	{
+	    buf = alloc((unsigned)((STRLEN(cdpath) << 1) + 2));
+	    if (buf != NULL)
+	    {
+		buf[0] = ',';	    /* start with ",", current dir first */
+		j = 1;
+		for (i = 0; cdpath[i] != NUL; ++i)
+		{
+		    if (vim_ispathlistsep(cdpath[i]))
+			buf[j++] = ',';
+		    else
+		    {
+			if (cdpath[i] == ' ' || cdpath[i] == ',')
+			    buf[j++] = '\\';
+			buf[j++] = cdpath[i];
+		    }
+		}
+		buf[j] = NUL;
+		opt_idx = findoption((char_u *)"cdpath");
+		options[opt_idx].def_val[VI_DEFAULT] = buf;
+		options[opt_idx].flags |= P_DEF_ALLOCED;
+	    }
+	}
+    }
+#endif
+
+#if defined(FEAT_POSTSCRIPT) && (defined(MSWIN) || defined(OS2) || defined(VMS) || defined(EBCDIC) || defined(MAC) || defined(hpux))
+    /* Set print encoding on platforms that don't default to latin1 */
+    set_string_default("penc",
+# if defined(MSWIN) || defined(OS2)
+		       (char_u *)"cp1252"
+# else
+#  ifdef VMS
+		       (char_u *)"dec-mcs"
+#  else
+#   ifdef EBCDIC
+		       (char_u *)"ebcdic-uk"
+#   else
+#    ifdef MAC
+		       (char_u *)"mac-roman"
+#    else /* HPUX */
+		       (char_u *)"hp-roman8"
+#    endif
+#   endif
+#  endif
+# endif
+		       );
+#endif
+
+#ifdef FEAT_POSTSCRIPT
+    /* 'printexpr' must be allocated to be able to evaluate it. */
+    set_string_default("pexpr",
+# ifdef MSWIN
+	    (char_u *)"system('copy' . ' ' . v:fname_in . ' \"' . &printdevice . '\"') . delete(v:fname_in)"
+# else
+#  ifdef VMS
+	    (char_u *)"system('print/delete' . (&printdevice == '' ? '' : ' /queue=' . &printdevice) . ' ' . v:fname_in)"
+
+#  else
+	    (char_u *)"system('lpr' . (&printdevice == '' ? '' : ' -P' . &printdevice) . ' ' . v:fname_in) . delete(v:fname_in) + v:shell_error"
+#  endif
+# endif
+	    );
+#endif
+
+    /*
+     * Set all the options (except the terminal options) to their default
+     * value.  Also set the global value for local options.
+     */
+    set_options_default(0);
+
+#ifdef FEAT_GUI
+    if (found_reverse_arg)
+	set_option_value((char_u *)"bg", 0L, (char_u *)"dark", 0);
+#endif
+
+    curbuf->b_p_initialized = TRUE;
+    curbuf->b_p_ar = -1;	/* no local 'autoread' value */
+    check_buf_options(curbuf);
+    check_win_options(curwin);
+    check_options();
+
+    /* Must be before option_expand(), because that one needs vim_isIDc() */
+    didset_options();
+
+#ifdef FEAT_LINEBREAK
+    /*
+     * initialize the table for 'breakat'.
+     */
+    fill_breakat_flags();
+#endif
+
+    /*
+     * Expand environment variables and things like "~" for the defaults.
+     * If option_expand() returns non-NULL the variable is expanded.  This can
+     * only happen for non-indirect options.
+     * Also set the default to the expanded value, so ":set" does not list
+     * them.
+     * Don't set the P_ALLOCED flag, because we don't want to free the
+     * default.
+     */
+    for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
+    {
+	if ((options[opt_idx].flags & P_GETTEXT)
+					      && options[opt_idx].var != NULL)
+	    p = (char_u *)_(*(char **)options[opt_idx].var);
+	else
+	    p = option_expand(opt_idx, NULL);
+	if (p != NULL && (p = vim_strsave(p)) != NULL)
+	{
+	    *(char_u **)options[opt_idx].var = p;
+	    /* VIMEXP
+	     * Defaults for all expanded options are currently the same for Vi
+	     * and Vim.  When this changes, add some code here!  Also need to
+	     * split P_DEF_ALLOCED in two.
+	     */
+	    if (options[opt_idx].flags & P_DEF_ALLOCED)
+		vim_free(options[opt_idx].def_val[VI_DEFAULT]);
+	    options[opt_idx].def_val[VI_DEFAULT] = p;
+	    options[opt_idx].flags |= P_DEF_ALLOCED;
+	}
+    }
+
+    /* Initialize the highlight_attr[] table. */
+    highlight_changed();
+
+    save_file_ff(curbuf);	/* Buffer is unchanged */
+
+    /* Parse default for 'wildmode'  */
+    check_opt_wim();
+
+#if defined(FEAT_ARABIC)
+    /* Detect use of mlterm.
+     * Mlterm is a terminal emulator akin to xterm that has some special
+     * abilities (bidi namely).
+     * NOTE: mlterm's author is being asked to 'set' a variable
+     *       instead of an environment variable due to inheritance.
+     */
+    if (mch_getenv((char_u *)"MLTERM") != NULL)
+	set_option_value((char_u *)"tbidi", 1L, NULL, 0);
+#endif
+
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+    /* Parse default for 'fillchars'. */
+    (void)set_chars_option(&p_fcs);
+#endif
+
+#ifdef FEAT_CLIPBOARD
+    /* Parse default for 'clipboard' */
+    (void)check_clipboard_option();
+#endif
+
+#ifdef FEAT_MBYTE
+# if defined(WIN3264) && defined(FEAT_GETTEXT)
+    /*
+     * If $LANG isn't set, try to get a good value for it.  This makes the
+     * right language be used automatically.  Don't do this for English.
+     */
+    if (mch_getenv((char_u *)"LANG") == NULL)
+    {
+	char	buf[20];
+
+	/* Could use LOCALE_SISO639LANGNAME, but it's not in Win95.
+	 * LOCALE_SABBREVLANGNAME gives us three letters, like "enu", we use
+	 * only the first two. */
+	n = GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_SABBREVLANGNAME,
+							     (LPTSTR)buf, 20);
+	if (n >= 2 && STRNICMP(buf, "en", 2) != 0)
+	{
+	    /* There are a few exceptions (probably more) */
+	    if (STRNICMP(buf, "cht", 3) == 0 || STRNICMP(buf, "zht", 3) == 0)
+		STRCPY(buf, "zh_TW");
+	    else if (STRNICMP(buf, "chs", 3) == 0
+					      || STRNICMP(buf, "zhc", 3) == 0)
+		STRCPY(buf, "zh_CN");
+	    else if (STRNICMP(buf, "jp", 2) == 0)
+		STRCPY(buf, "ja");
+	    else
+		buf[2] = NUL;		/* truncate to two-letter code */
+	    vim_setenv("LANG", buf);
+	}
+    }
+# endif
+
+    /* enc_locale() will try to find the encoding of the current locale. */
+    p = enc_locale();
+    if (p != NULL)
+    {
+	char_u *save_enc;
+
+	/* Try setting 'encoding' and check if the value is valid.
+	 * If not, go back to the default "latin1". */
+	save_enc = p_enc;
+	p_enc = p;
+	if (mb_init() == NULL)
+	{
+	    opt_idx = findoption((char_u *)"encoding");
+	    options[opt_idx].def_val[VI_DEFAULT] = p_enc;
+	    options[opt_idx].flags |= P_DEF_ALLOCED;
+
+# if defined(WIN3264) && !defined(FEAT_GUI)
+	    /* Win32 console: When GetACP() returns a different value from
+	     * GetConsoleCP() set 'termencoding'. */
+	    if (GetACP() != GetConsoleCP())
+	    {
+		char	buf[50];
+
+		sprintf(buf, "cp%ld", (long)GetConsoleCP());
+		p_tenc = vim_strsave((char_u *)buf);
+		if (p_tenc != NULL)
+		{
+		    opt_idx = findoption((char_u *)"termencoding");
+		    options[opt_idx].def_val[VI_DEFAULT] = p_tenc;
+		    options[opt_idx].flags |= P_DEF_ALLOCED;
+		    convert_setup(&input_conv, p_tenc, p_enc);
+		    convert_setup(&output_conv, p_enc, p_tenc);
+		}
+		else
+		    p_tenc = empty_option;
+	    }
+# endif
+	}
+	else
+	{
+	    vim_free(p_enc);
+	    p_enc = save_enc;
+	}
+    }
+#endif
+
+#ifdef FEAT_MULTI_LANG
+    /* Set the default for 'helplang'. */
+    set_helplang_default(get_mess_lang());
+#endif
+}
+
+/*
+ * Set an option to its default value.
+ * This does not take care of side effects!
+ */
+    static void
+set_option_default(opt_idx, opt_flags, compatible)
+    int		opt_idx;
+    int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
+    int		compatible;	/* use Vi default value */
+{
+    char_u	*varp;		/* pointer to variable for current option */
+    int		dvi;		/* index in def_val[] */
+    long_u	flags;
+    int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
+
+    varp = get_varp_scope(&(options[opt_idx]), both ? OPT_LOCAL : opt_flags);
+    flags = options[opt_idx].flags;
+    if (varp != NULL)	    /* nothing to do for hidden option */
+    {
+	dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
+	if (flags & P_STRING)
+	{
+	    /* Use set_string_option_direct() for local options to handle
+	     * freeing and allocating the value. */
+	    if (options[opt_idx].indir != PV_NONE)
+		set_string_option_direct(NULL, opt_idx,
+				    options[opt_idx].def_val[dvi], opt_flags);
+	    else
+	    {
+		if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED))
+		    free_string_option(*(char_u **)(varp));
+		*(char_u **)varp = options[opt_idx].def_val[dvi];
+		options[opt_idx].flags &= ~P_ALLOCED;
+	    }
+	}
+	else if (flags & P_NUM)
+	{
+	    if (varp == (char_u *)PV_SCROLL)
+		win_comp_scroll(curwin);
+	    else
+	    {
+		*(long *)varp = (long)options[opt_idx].def_val[dvi];
+		/* May also set global value for local option. */
+		if (both)
+		    *(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
+								*(long *)varp;
+	    }
+	}
+	else	/* P_BOOL */
+	{
+	    /* the cast to long is required for Manx C */
+	    *(int *)varp = (int)(long)options[opt_idx].def_val[dvi];
+	    /* May also set global value for local option. */
+	    if (both)
+		*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
+								*(int *)varp;
+	}
+    }
+
+#ifdef FEAT_EVAL
+    /* Remember where the option was set. */
+    options[opt_idx].scriptID = current_SID;
+#endif
+}
+
+/*
+ * Set all options (except terminal options) to their default value.
+ */
+    static void
+set_options_default(opt_flags)
+    int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
+{
+    int		i;
+#ifdef FEAT_WINDOWS
+    win_T	*wp;
+#endif
+
+    for (i = 0; !istermoption(&options[i]); i++)
+	if (!(options[i].flags & P_NODEFAULT))
+	    set_option_default(i, opt_flags, p_cp);
+
+#ifdef FEAT_WINDOWS
+    /* The 'scroll' option must be computed for all windows. */
+    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+	win_comp_scroll(wp);
+#else
+	win_comp_scroll(curwin);
+#endif
+}
+
+/*
+ * Set the Vi-default value of a string option.
+ * Used for 'sh', 'backupskip' and 'term'.
+ */
+    void
+set_string_default(name, val)
+    char	*name;
+    char_u	*val;
+{
+    char_u	*p;
+    int		opt_idx;
+
+    p = vim_strsave(val);
+    if (p != NULL)		/* we don't want a NULL */
+    {
+	opt_idx = findoption((char_u *)name);
+	if (options[opt_idx].flags & P_DEF_ALLOCED)
+	    vim_free(options[opt_idx].def_val[VI_DEFAULT]);
+	options[opt_idx].def_val[VI_DEFAULT] = p;
+	options[opt_idx].flags |= P_DEF_ALLOCED;
+    }
+}
+
+/*
+ * Set the Vi-default value of a number option.
+ * Used for 'lines' and 'columns'.
+ */
+    void
+set_number_default(name, val)
+    char	*name;
+    long	val;
+{
+    options[findoption((char_u *)name)].def_val[VI_DEFAULT] = (char_u *)val;
+}
+
+/*
+ * Initialize the options, part two: After getting Rows and Columns and
+ * setting 'term'.
+ */
+    void
+set_init_2()
+{
+    /*
+     * 'scroll' defaults to half the window height. Note that this default is
+     * wrong when the window height changes.
+     */
+    options[findoption((char_u *)"scroll")].def_val[VI_DEFAULT]
+					      = (char_u *)((long_u)Rows >> 1);
+    comp_col();
+
+#if !((defined(MSDOS) || defined(OS2) || defined(WIN3264)) && !defined(FEAT_GUI))
+    {
+	int	idx4;
+
+	/*
+	 * If 'background' wasn't set by the user, try guessing the value,
+	 * depending on the terminal name.  Only need to check for terminals
+	 * with a dark background, that can handle color.  Only "linux"
+	 * console at the moment.
+	 */
+	idx4 = findoption((char_u *)"bg");
+	if (!(options[idx4].flags & P_WAS_SET) && STRCMP(T_NAME, "linux") == 0)
+	{
+	    set_string_option_direct(NULL, idx4, (char_u *)"dark", OPT_FREE);
+	    /* don't mark it as set, when starting the GUI it may be changed
+	     * again */
+	    options[idx4].flags &= ~P_WAS_SET;
+	}
+    }
+#endif
+}
+
+/*
+ * Initialize the options, part three: After reading the .vimrc
+ */
+    void
+set_init_3()
+{
+#if defined(UNIX) || defined(OS2) || defined(WIN3264)
+/*
+ * Set 'shellpipe' and 'shellredir', depending on the 'shell' option.
+ * This is done after other initializations, where 'shell' might have been
+ * set, but only if they have not been set before.
+ */
+    char_u  *p;
+    int	    idx_srr;
+    int	    do_srr;
+#ifdef FEAT_QUICKFIX
+    int	    idx_sp;
+    int	    do_sp;
+#endif
+
+    idx_srr = findoption((char_u *)"srr");
+    do_srr = !(options[idx_srr].flags & P_WAS_SET);
+#ifdef FEAT_QUICKFIX
+    idx_sp = findoption((char_u *)"sp");
+    do_sp = !(options[idx_sp].flags & P_WAS_SET);
+#endif
+
+    /*
+     * Isolate the name of the shell:
+     * - Skip beyond any path.  E.g., "/usr/bin/csh -f" -> "csh -f".
+     * - Remove any argument.  E.g., "csh -f" -> "csh".
+     */
+    p = gettail(p_sh);
+    p = vim_strnsave(p, (int)(skiptowhite(p) - p));
+    if (p != NULL)
+    {
+	/*
+	 * Default for p_sp is "| tee", for p_srr is ">".
+	 * For known shells it is changed here to include stderr.
+	 */
+	if (	   fnamecmp(p, "csh") == 0
+		|| fnamecmp(p, "tcsh") == 0
+# if defined(OS2) || defined(WIN3264)	/* also check with .exe extension */
+		|| fnamecmp(p, "csh.exe") == 0
+		|| fnamecmp(p, "tcsh.exe") == 0
+# endif
+	   )
+	{
+#if defined(FEAT_QUICKFIX)
+	    if (do_sp)
+	    {
+# ifdef WIN3264
+		p_sp = (char_u *)">&";
+# else
+		p_sp = (char_u *)"|& tee";
+# endif
+		options[idx_sp].def_val[VI_DEFAULT] = p_sp;
+	    }
+#endif
+	    if (do_srr)
+	    {
+		p_srr = (char_u *)">&";
+		options[idx_srr].def_val[VI_DEFAULT] = p_srr;
+	    }
+	}
+	else
+# ifndef OS2	/* Always use bourne shell style redirection if we reach this */
+	    if (       fnamecmp(p, "sh") == 0
+		    || fnamecmp(p, "ksh") == 0
+		    || fnamecmp(p, "zsh") == 0
+		    || fnamecmp(p, "bash") == 0
+#  ifdef WIN3264
+		    || fnamecmp(p, "cmd") == 0
+		    || fnamecmp(p, "sh.exe") == 0
+		    || fnamecmp(p, "ksh.exe") == 0
+		    || fnamecmp(p, "zsh.exe") == 0
+		    || fnamecmp(p, "bash.exe") == 0
+		    || fnamecmp(p, "cmd.exe") == 0
+#  endif
+		    )
+# endif
+	    {
+#if defined(FEAT_QUICKFIX)
+		if (do_sp)
+		{
+# ifdef WIN3264
+		    p_sp = (char_u *)">%s 2>&1";
+# else
+		    p_sp = (char_u *)"2>&1| tee";
+# endif
+		    options[idx_sp].def_val[VI_DEFAULT] = p_sp;
+		}
+#endif
+		if (do_srr)
+		{
+		    p_srr = (char_u *)">%s 2>&1";
+		    options[idx_srr].def_val[VI_DEFAULT] = p_srr;
+		}
+	    }
+	vim_free(p);
+    }
+#endif
+
+#if defined(MSDOS) || defined(WIN3264) || defined(OS2)
+    /*
+     * Set 'shellcmdflag and 'shellquote' depending on the 'shell' option.
+     * This is done after other initializations, where 'shell' might have been
+     * set, but only if they have not been set before.  Default for p_shcf is
+     * "/c", for p_shq is "".  For "sh" like  shells it is changed here to
+     * "-c" and "\"", but not for DJGPP, because it starts the shell without
+     * command.com.  And for Win32 we need to set p_sxq instead.
+     */
+    if (strstr((char *)p_sh, "sh") != NULL)
+    {
+	int	idx3;
+
+	idx3 = findoption((char_u *)"shcf");
+	if (!(options[idx3].flags & P_WAS_SET))
+	{
+	    p_shcf = (char_u *)"-c";
+	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
+	}
+
+# ifndef DJGPP
+#  ifdef WIN3264
+	/* Somehow Win32 requires the quotes around the redirection too */
+	idx3 = findoption((char_u *)"sxq");
+	if (!(options[idx3].flags & P_WAS_SET))
+	{
+	    p_sxq = (char_u *)"\"";
+	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
+	}
+#  else
+	idx3 = findoption((char_u *)"shq");
+	if (!(options[idx3].flags & P_WAS_SET))
+	{
+	    p_shq = (char_u *)"\"";
+	    options[idx3].def_val[VI_DEFAULT] = p_shq;
+	}
+#  endif
+# endif
+    }
+#endif
+
+#ifdef FEAT_TITLE
+    set_title_defaults();
+#endif
+}
+
+#if defined(FEAT_MULTI_LANG) || defined(PROTO)
+/*
+ * When 'helplang' is still at its default value, set it to "lang".
+ * Only the first two characters of "lang" are used.
+ */
+    void
+set_helplang_default(lang)
+    char_u	*lang;
+{
+    int		idx;
+
+    if (lang == NULL || STRLEN(lang) < 2)	/* safety check */
+	return;
+    idx = findoption((char_u *)"hlg");
+    if (!(options[idx].flags & P_WAS_SET))
+    {
+	if (options[idx].flags & P_ALLOCED)
+	    free_string_option(p_hlg);
+	p_hlg = vim_strsave(lang);
+	if (p_hlg == NULL)
+	    p_hlg = empty_option;
+	else
+	    p_hlg[2] = NUL;
+	options[idx].flags |= P_ALLOCED;
+    }
+}
+#endif
+
+#ifdef FEAT_GUI
+static char_u *gui_bg_default __ARGS((void));
+
+    static char_u *
+gui_bg_default()
+{
+    if (gui_get_lightness(gui.back_pixel) < 127)
+	return (char_u *)"dark";
+    return (char_u *)"light";
+}
+
+/*
+ * Option initializations that can only be done after opening the GUI window.
+ */
+    void
+init_gui_options()
+{
+    /* Set the 'background' option according to the lightness of the
+     * background color, unless the user has set it already. */
+    if (!option_was_set((char_u *)"bg") && STRCMP(p_bg, gui_bg_default()) != 0)
+    {
+	set_option_value((char_u *)"bg", 0L, gui_bg_default(), 0);
+	highlight_changed();
+    }
+}
+#endif
+
+#ifdef FEAT_TITLE
+/*
+ * 'title' and 'icon' only default to true if they have not been set or reset
+ * in .vimrc and we can read the old value.
+ * When 'title' and 'icon' have been reset in .vimrc, we won't even check if
+ * they can be reset.  This reduces startup time when using X on a remote
+ * machine.
+ */
+    void
+set_title_defaults()
+{
+    int	    idx1;
+    long    val;
+
+    /*
+     * If GUI is (going to be) used, we can always set the window title and
+     * icon name.  Saves a bit of time, because the X11 display server does
+     * not need to be contacted.
+     */
+    idx1 = findoption((char_u *)"title");
+    if (!(options[idx1].flags & P_WAS_SET))
+    {
+#ifdef FEAT_GUI
+	if (gui.starting || gui.in_use)
+	    val = TRUE;
+	else
+#endif
+	    val = mch_can_restore_title();
+	options[idx1].def_val[VI_DEFAULT] = (char_u *)val;
+	p_title = val;
+    }
+    idx1 = findoption((char_u *)"icon");
+    if (!(options[idx1].flags & P_WAS_SET))
+    {
+#ifdef FEAT_GUI
+	if (gui.starting || gui.in_use)
+	    val = TRUE;
+	else
+#endif
+	    val = mch_can_restore_icon();
+	options[idx1].def_val[VI_DEFAULT] = (char_u *)val;
+	p_icon = val;
+    }
+}
+#endif
+
+/*
+ * Parse 'arg' for option settings.
+ *
+ * 'arg' may be IObuff, but only when no errors can be present and option
+ * does not need to be expanded with option_expand().
+ * "opt_flags":
+ * 0 for ":set"
+ * OPT_GLOBAL for ":setglobal"
+ * OPT_LOCAL for ":setlocal" and a modeline
+ * OPT_MODELINE for a modeline
+ *
+ * returns FAIL if an error is detected, OK otherwise
+ */
+    int
+do_set(arg, opt_flags)
+    char_u	*arg;		/* option string (may be written to!) */
+    int		opt_flags;
+{
+    int		opt_idx;
+    char_u	*errmsg;
+    char_u	errbuf[80];
+    char_u	*startarg;
+    int		prefix;	/* 1: nothing, 0: "no", 2: "inv" in front of name */
+    int		nextchar;	    /* next non-white char after option name */
+    int		afterchar;	    /* character just after option name */
+    int		len;
+    int		i;
+    long	value;
+    int		key;
+    long_u	flags;		    /* flags for current option */
+    char_u	*varp = NULL;	    /* pointer to variable for current option */
+    int		did_show = FALSE;   /* already showed one value */
+    int		adding;		    /* "opt+=arg" */
+    int		prepending;	    /* "opt^=arg" */
+    int		removing;	    /* "opt-=arg" */
+    int		cp_val = 0;
+    char_u	key_name[2];
+
+    if (*arg == NUL)
+    {
+	showoptions(0, opt_flags);
+	return OK;
+    }
+
+    while (*arg != NUL)		/* loop to process all options */
+    {
+	errmsg = NULL;
+	startarg = arg;		/* remember for error message */
+
+	if (STRNCMP(arg, "all", 3) == 0 && !isalpha(arg[3]))
+	{
+	    /*
+	     * ":set all"  show all options.
+	     * ":set all&" set all options to their default value.
+	     */
+	    arg += 3;
+	    if (*arg == '&')
+	    {
+		++arg;
+		/* Only for :set command set global value of local options. */
+		set_options_default(OPT_FREE | opt_flags);
+	    }
+	    else
+		showoptions(1, opt_flags);
+	}
+	else if (STRNCMP(arg, "termcap", 7) == 0)
+	{
+	    showoptions(2, opt_flags);
+	    show_termcodes();
+	    arg += 7;
+	}
+	else
+	{
+	    prefix = 1;
+	    if (STRNCMP(arg, "no", 2) == 0)
+	    {
+		prefix = 0;
+		arg += 2;
+	    }
+	    else if (STRNCMP(arg, "inv", 3) == 0)
+	    {
+		prefix = 2;
+		arg += 3;
+	    }
+
+	    /* find end of name */
+	    key = 0;
+	    if (*arg == '<')
+	    {
+		nextchar = 0;
+		opt_idx = -1;
+		/* look out for <t_>;> */
+		if (arg[1] == 't' && arg[2] == '_' && arg[3] && arg[4])
+		    len = 5;
+		else
+		{
+		    len = 1;
+		    while (arg[len] != NUL && arg[len] != '>')
+			++len;
+		}
+		if (arg[len] != '>')
+		{
+		    errmsg = e_invarg;
+		    goto skip;
+		}
+		arg[len] = NUL;			    /* put NUL after name */
+		if (arg[1] == 't' && arg[2] == '_') /* could be term code */
+		    opt_idx = findoption(arg + 1);
+		arg[len++] = '>';		    /* restore '>' */
+		if (opt_idx == -1)
+		    key = find_key_option(arg + 1);
+	    }
+	    else
+	    {
+		len = 0;
+		/*
+		 * The two characters after "t_" may not be alphanumeric.
+		 */
+		if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
+		    len = 4;
+		else
+		    while (ASCII_ISALNUM(arg[len]) || arg[len] == '_')
+			++len;
+		nextchar = arg[len];
+		arg[len] = NUL;			    /* put NUL after name */
+		opt_idx = findoption(arg);
+		arg[len] = nextchar;		    /* restore nextchar */
+		if (opt_idx == -1)
+		    key = find_key_option(arg);
+	    }
+
+	    /* remember character after option name */
+	    afterchar = arg[len];
+
+	    /* skip white space, allow ":set ai  ?" */
+	    while (vim_iswhite(arg[len]))
+		++len;
+
+	    adding = FALSE;
+	    prepending = FALSE;
+	    removing = FALSE;
+	    if (arg[len] != NUL && arg[len + 1] == '=')
+	    {
+		if (arg[len] == '+')
+		{
+		    adding = TRUE;		/* "+=" */
+		    ++len;
+		}
+		else if (arg[len] == '^')
+		{
+		    prepending = TRUE;		/* "^=" */
+		    ++len;
+		}
+		else if (arg[len] == '-')
+		{
+		    removing = TRUE;		/* "-=" */
+		    ++len;
+		}
+	    }
+	    nextchar = arg[len];
+
+	    if (opt_idx == -1 && key == 0)	/* found a mismatch: skip */
+	    {
+		errmsg = (char_u *)N_("E518: Unknown option");
+		goto skip;
+	    }
+
+	    if (opt_idx >= 0)
+	    {
+		if (options[opt_idx].var == NULL)   /* hidden option: skip */
+		{
+		    /* Only give an error message when requesting the value of
+		     * a hidden option, ignore setting it. */
+		    if (vim_strchr((char_u *)"=:!&<", nextchar) == NULL
+			    && (!(options[opt_idx].flags & P_BOOL)
+				|| nextchar == '?'))
+			errmsg = (char_u *)N_("E519: Option not supported");
+		    goto skip;
+		}
+
+		flags = options[opt_idx].flags;
+		varp = get_varp_scope(&(options[opt_idx]), opt_flags);
+	    }
+	    else
+	    {
+		flags = P_STRING;
+		if (key < 0)
+		{
+		    key_name[0] = KEY2TERMCAP0(key);
+		    key_name[1] = KEY2TERMCAP1(key);
+		}
+		else
+		{
+		    key_name[0] = KS_KEY;
+		    key_name[1] = (key & 0xff);
+		}
+	    }
+
+	    /* Disallow changing some options from modelines */
+	    if ((opt_flags & OPT_MODELINE) && (flags & P_SECURE))
+	    {
+		errmsg = (char_u *)_("E520: Not allowed in a modeline");
+		goto skip;
+	    }
+
+#ifdef HAVE_SANDBOX
+	    /* Disallow changing some options in the sandbox */
+	    if (sandbox > 0 && (flags & P_SECURE))
+	    {
+		errmsg = (char_u *)_(e_sandbox);
+		goto skip;
+	    }
+#endif
+
+	    if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL)
+	    {
+		arg += len;
+		cp_val = p_cp;
+		if (nextchar == '&' && arg[1] == 'v' && arg[2] == 'i')
+		{
+		    if (arg[3] == 'm')	/* "opt&vim": set to Vim default */
+		    {
+			cp_val = FALSE;
+			arg += 3;
+		    }
+		    else		/* "opt&vi": set to Vi default */
+		    {
+			cp_val = TRUE;
+			arg += 2;
+		    }
+		}
+		if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
+			&& arg[1] != NUL && !vim_iswhite(arg[1]))
+		{
+		    errmsg = e_trailing;
+		    goto skip;
+		}
+	    }
+
+	    /*
+	     * allow '=' and ':' as MSDOS command.com allows only one
+	     * '=' character per "set" command line. grrr. (jw)
+	     */
+	    if (nextchar == '?'
+		    || (prefix == 1
+			&& vim_strchr((char_u *)"=:&<", nextchar) == NULL
+			&& !(flags & P_BOOL)))
+	    {
+		/*
+		 * print value
+		 */
+		if (did_show)
+		    msg_putchar('\n');	    /* cursor below last one */
+		else
+		{
+		    gotocmdline(TRUE);	    /* cursor at status line */
+		    did_show = TRUE;	    /* remember that we did a line */
+		}
+		if (opt_idx >= 0)
+		{
+		    showoneopt(&options[opt_idx], opt_flags);
+#ifdef FEAT_EVAL
+		    if (p_verbose > 0)
+		    {
+			if (options[opt_idx].scriptID != 0)
+			{
+			    MSG_PUTS(_("\n\tLast set from "));
+			    MSG_PUTS(get_scriptname(options[opt_idx].scriptID));
+			}
+		    }
+#endif
+		}
+		else
+		{
+		    char_u	    *p;
+
+		    p = find_termcode(key_name);
+		    if (p == NULL)
+		    {
+			errmsg = (char_u *)N_("E518: Unknown option");
+			goto skip;
+		    }
+		    else
+			(void)show_one_termcode(key_name, p, TRUE);
+		}
+		if (nextchar != '?'
+			&& nextchar != NUL && !vim_iswhite(afterchar))
+		    errmsg = e_trailing;
+	    }
+	    else
+	    {
+		if (flags & P_BOOL)		    /* boolean */
+		{
+		    if (nextchar == '=' || nextchar == ':')
+		    {
+			errmsg = e_invarg;
+			goto skip;
+		    }
+
+		    /*
+		     * ":set opt!": invert
+		     * ":set opt&": reset to default value
+		     * ":set opt<": reset to global value
+		     */
+		    if (nextchar == '!')
+			value = *(int *)(varp) ^ 1;
+		    else if (nextchar == '&')
+			value = (int)(long)options[opt_idx].def_val[
+						((flags & P_VI_DEF) || cp_val)
+						 ?  VI_DEFAULT : VIM_DEFAULT];
+		    else if (nextchar == '<')
+		    {
+			/* For 'autoread' -1 means to use global value. */
+			if ((int *)varp == &curbuf->b_p_ar
+						    && opt_flags == OPT_LOCAL)
+			    value = -1;
+			else
+			    value = *(int *)get_varp_scope(&(options[opt_idx]),
+								  OPT_GLOBAL);
+		    }
+		    else
+		    {
+			/*
+			 * ":set invopt": invert
+			 * ":set opt" or ":set noopt": set or reset
+			 */
+			if (nextchar != NUL && !vim_iswhite(afterchar))
+			{
+			    errmsg = e_trailing;
+			    goto skip;
+			}
+			if (prefix == 2)	/* inv */
+			    value = *(int *)(varp) ^ 1;
+			else
+			    value = prefix;
+		    }
+
+		    errmsg = set_bool_option(opt_idx, varp, (int)value,
+								   opt_flags);
+		}
+		else				    /* numeric or string */
+		{
+		    if (vim_strchr((char_u *)"=:&<", nextchar) == NULL
+							       || prefix != 1)
+		    {
+			errmsg = e_invarg;
+			goto skip;
+		    }
+
+		    if (flags & P_NUM)		    /* numeric */
+		    {
+			/*
+			 * Different ways to set a number option:
+			 * &	    set to default value
+			 * <	    set to global value
+			 * <xx>	    accept special key codes for 'wildchar'
+			 * c	    accept any non-digit for 'wildchar'
+			 * [-]0-9   set number
+			 * other    error
+			 */
+			++arg;
+			if (nextchar == '&')
+			    value = (long)options[opt_idx].def_val[
+						((flags & P_VI_DEF) || cp_val)
+						 ?  VI_DEFAULT : VIM_DEFAULT];
+			else if (nextchar == '<')
+			    value = *(long *)get_varp_scope(&(options[opt_idx]),
+								  OPT_GLOBAL);
+			else if (((long *)varp == &p_wc
+				    || (long *)varp == &p_wcm)
+				&& (*arg == '<'
+				    || *arg == '^'
+				    || ((!arg[1] || vim_iswhite(arg[1]))
+					&& !VIM_ISDIGIT(*arg))))
+			{
+			    value = string_to_key(arg);
+			    if (value == 0 && (long *)varp != &p_wcm)
+			    {
+				errmsg = e_invarg;
+				goto skip;
+			    }
+			}
+				/* allow negative numbers (for 'undolevels') */
+			else if (*arg == '-' || VIM_ISDIGIT(*arg))
+			{
+			    i = 0;
+			    if (*arg == '-')
+				i = 1;
+#ifdef HAVE_STRTOL
+			    value = strtol((char *)arg, NULL, 0);
+			    if (arg[i] == '0' && TOLOWER_ASC(arg[i + 1]) == 'x')
+				i += 2;
+#else
+			    value = atol((char *)arg);
+#endif
+			    while (VIM_ISDIGIT(arg[i]))
+				++i;
+			    if (arg[i] != NUL && !vim_iswhite(arg[i]))
+			    {
+				errmsg = e_invarg;
+				goto skip;
+			    }
+			}
+			else
+			{
+			    errmsg = (char_u *)N_("E521: Number required after =");
+			    goto skip;
+			}
+
+			if (adding)
+			    value = *(long *)varp + value;
+			if (prepending)
+			    value = *(long *)varp * value;
+			if (removing)
+			    value = *(long *)varp - value;
+			errmsg = set_num_option(opt_idx, varp, value,
+							   errbuf, opt_flags);
+		    }
+		    else if (opt_idx >= 0)		    /* string */
+		    {
+			char_u	    *save_arg = NULL;
+			char_u	    *s = NULL;
+			char_u	    *oldval;	/* previous value if *varp */
+			char_u	    *newval;
+			char_u	    *origval;
+			unsigned    newlen;
+			int	    comma;
+			int	    bs;
+			int	    new_value_alloced;	/* new string option
+							   was allocated */
+
+			/* When using ":set opt=val" for a global option
+			 * with a local value the local value will be
+			 * reset, use the global value here. */
+			if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
+				&& (int)options[opt_idx].indir >= PV_BOTH)
+			    varp = options[opt_idx].var;
+
+			/* The old value is kept until we are sure that the
+			 * new value is valid. */
+			oldval = *(char_u **)varp;
+			if (nextchar == '&')	/* set to default val */
+			{
+			    newval = options[opt_idx].def_val[
+						((flags & P_VI_DEF) || cp_val)
+						 ?  VI_DEFAULT : VIM_DEFAULT];
+			    if ((char_u **)varp == &p_bg)
+			    {
+				/* guess the value of 'background' */
+#ifdef FEAT_GUI
+				if (gui.in_use)
+				    newval = gui_bg_default();
+				else
+#endif
+				    if (STRCMP(T_NAME, "linux") == 0)
+					newval = (char_u *)"dark";
+			    }
+
+			    /* expand environment variables and ~ (since the
+			     * default value was already expanded, only
+			     * required when an environment variable was set
+			     * later */
+			    if (newval == NULL)
+				newval = empty_option;
+			    else
+			    {
+				s = option_expand(opt_idx, newval);
+				if (s == NULL)
+				    s = newval;
+				newval = vim_strsave(s);
+			    }
+			    new_value_alloced = TRUE;
+			}
+			else if (nextchar == '<')	/* set to global val */
+			{
+			    newval = vim_strsave(*(char_u **)get_varp_scope(
+					     &(options[opt_idx]), OPT_GLOBAL));
+			    new_value_alloced = TRUE;
+			}
+			else
+			{
+			    ++arg;	/* jump to after the '=' or ':' */
+
+			    /*
+			     * Set 'keywordprg' to ":help" if an empty
+			     * value was passed to :set by the user.
+			     * Misuse errbuf[] for the resulting string.
+			     */
+			    if (varp == (char_u *)&p_kp
+					      && (*arg == NUL || *arg == ' '))
+			    {
+				STRCPY(errbuf, ":help");
+				save_arg = arg;
+				arg = errbuf;
+			    }
+			    /*
+			     * Convert 'whichwrap' number to string, for
+			     * backwards compatibility with Vim 3.0.
+			     * Misuse errbuf[] for the resulting string.
+			     */
+			    else if (varp == (char_u *)&p_ww
+							 && VIM_ISDIGIT(*arg))
+			    {
+				*errbuf = NUL;
+				i = getdigits(&arg);
+				if (i & 1)
+				    STRCAT(errbuf, "b,");
+				if (i & 2)
+				    STRCAT(errbuf, "s,");
+				if (i & 4)
+				    STRCAT(errbuf, "h,l,");
+				if (i & 8)
+				    STRCAT(errbuf, "<,>,");
+				if (i & 16)
+				    STRCAT(errbuf, "[,],");
+				if (*errbuf != NUL)	/* remove trailing , */
+				    errbuf[STRLEN(errbuf) - 1] = NUL;
+				save_arg = arg;
+				arg = errbuf;
+			    }
+			    /*
+			     * Remove '>' before 'dir' and 'bdir', for
+			     * backwards compatibility with version 3.0
+			     */
+			    else if (  *arg == '>'
+				    && (varp == (char_u *)&p_dir
+					    || varp == (char_u *)&p_bdir))
+			    {
+				++arg;
+			    }
+
+			    /* When setting the local value of a global
+			     * option, the old value may be the global value. */
+			    if ((int)options[opt_idx].indir >= PV_BOTH
+						   && (opt_flags & OPT_LOCAL))
+				origval = *(char_u **)get_varp(
+							   &options[opt_idx]);
+			    else
+				origval = oldval;
+
+			    /*
+			     * Copy the new string into allocated memory.
+			     * Can't use set_string_option_direct(), because
+			     * we need to remove the backslashes.
+			     */
+			    /* get a bit too much */
+			    newlen = (unsigned)STRLEN(arg) + 1;
+			    if (adding || prepending || removing)
+				newlen += (unsigned)STRLEN(origval) + 1;
+			    newval = alloc(newlen);
+			    if (newval == NULL)  /* out of mem, don't change */
+				break;
+			    s = newval;
+
+			    /*
+			     * Copy the string, skip over escaped chars.
+			     * For MS-DOS and WIN32 backslashes before normal
+			     * file name characters are not removed, and keep
+			     * backslash at start, for "\\machine\path", but
+			     * do remove it for "\\\\machine\\path".
+			     * The reverse is found in ExpandOldSetting().
+			     */
+			    while (*arg && !vim_iswhite(*arg))
+			    {
+				if (*arg == '\\' && arg[1] != NUL
+#ifdef BACKSLASH_IN_FILENAME
+					&& !((flags & P_EXPAND)
+						&& vim_isfilec(arg[1])
+						&& (arg[1] != '\\'
+						    || (s == newval
+							&& arg[2] != '\\')))
+#endif
+								    )
+				    ++arg;	/* remove backslash */
+#ifdef FEAT_MBYTE
+				if (has_mbyte
+					&& (i = (*mb_ptr2len_check)(arg)) > 1)
+				{
+				    /* copy multibyte char */
+				    mch_memmove(s, arg, (size_t)i);
+				    arg += i;
+				    s += i;
+				}
+				else
+#endif
+				    *s++ = *arg++;
+			    }
+			    *s = NUL;
+
+			    /*
+			     * Expand environment variables and ~.
+			     * Don't do it when adding without inserting a
+			     * comma.
+			     */
+			    if (!(adding || prepending || removing)
+							 || (flags & P_COMMA))
+			    {
+				s = option_expand(opt_idx, newval);
+				if (s != NULL)
+				{
+				    vim_free(newval);
+				    newlen = (unsigned)STRLEN(s) + 1;
+				    if (adding || prepending || removing)
+					newlen += (unsigned)STRLEN(origval) + 1;
+				    newval = alloc(newlen);
+				    if (newval == NULL)
+					break;
+				    STRCPY(newval, s);
+				}
+			    }
+
+			    /* locate newval[] in origval[] when removing it
+			     * and when adding to avoid duplicates */
+			    i = 0;	/* init for GCC */
+			    if (removing || (flags & P_NODUP))
+			    {
+				i = (int)STRLEN(newval);
+				bs = 0;
+				for (s = origval; *s; ++s)
+				{
+				    if ((!(flags & P_COMMA)
+						|| s == origval
+						|| (s[-1] == ',' && !(bs & 1)))
+					    && STRNCMP(s, newval, i) == 0
+					    && (!(flags & P_COMMA)
+						|| s[i] == ','
+						|| s[i] == NUL))
+					break;
+				    /* Count backspaces.  Only a comma with an
+				     * even number of backspaces before it is
+				     * recognized as a separator */
+				    if (s > origval && s[-1] == '\\')
+					++bs;
+				    else
+					bs = 0;
+				}
+
+				/* do not add if already there */
+				if ((adding || prepending) && *s)
+				{
+				    prepending = FALSE;
+				    adding = FALSE;
+				    STRCPY(newval, origval);
+				}
+			    }
+
+			    /* concatenate the two strings; add a ',' if
+			     * needed */
+			    if (adding || prepending)
+			    {
+				comma = ((flags & P_COMMA) && *origval != NUL
+							   && *newval != NUL);
+				if (adding)
+				{
+				    i = (int)STRLEN(origval);
+				    mch_memmove(newval + i + comma, newval,
+							  STRLEN(newval) + 1);
+				    mch_memmove(newval, origval, (size_t)i);
+				}
+				else
+				{
+				    i = (int)STRLEN(newval);
+				    mch_memmove(newval + i + comma, origval,
+							  STRLEN(origval) + 1);
+				}
+				if (comma)
+				    newval[i] = ',';
+			    }
+
+			    /* Remove newval[] from origval[]. (Note: "i" has
+			     * been set above and is used here). */
+			    if (removing)
+			    {
+				STRCPY(newval, origval);
+				if (*s)
+				{
+				    /* may need to remove a comma */
+				    if (flags & P_COMMA)
+				    {
+					if (s == origval)
+					{
+					    /* include comma after string */
+					    if (s[i] == ',')
+						++i;
+					}
+					else
+					{
+					    /* include comma before string */
+					    --s;
+					    ++i;
+					}
+				    }
+				    mch_memmove(newval + (s - origval), s + i,
+							   STRLEN(s + i) + 1);
+				}
+			    }
+
+			    if (flags & P_FLAGLIST)
+			    {
+				/* Remove flags that appear twice. */
+				for (s = newval; *s; ++s)
+				    if ((!(flags & P_COMMA) || *s != ',')
+					    && vim_strchr(s + 1, *s) != NULL)
+				    {
+					STRCPY(s, s + 1);
+					--s;
+				    }
+			    }
+
+			    if (save_arg != NULL)   /* number for 'whichwrap' */
+				arg = save_arg;
+			    new_value_alloced = TRUE;
+			}
+
+			/* Set the new value. */
+			*(char_u **)(varp) = newval;
+
+			/* Handle side effects, and set the global value for
+			 * ":set" on local options. */
+			errmsg = did_set_string_option(opt_idx, (char_u **)varp,
+				new_value_alloced, oldval, errbuf, opt_flags);
+
+			/* If error detected, print the error message. */
+			if (errmsg != NULL)
+			    goto skip;
+		    }
+		    else	    /* key code option */
+		    {
+			char_u	    *p;
+
+			if (nextchar == '&')
+			{
+			    if (add_termcap_entry(key_name, TRUE) == FAIL)
+				errmsg = (char_u *)N_("E522: Not found in termcap");
+			}
+			else
+			{
+			    ++arg; /* jump to after the '=' or ':' */
+			    for (p = arg; *p && !vim_iswhite(*p); ++p)
+				if (*p == '\\' && p[1] != NUL)
+				    ++p;
+			    nextchar = *p;
+			    *p = NUL;
+			    add_termcode(key_name, arg, FALSE);
+			    *p = nextchar;
+			}
+			if (full_screen)
+			    ttest(FALSE);
+			redraw_all_later(CLEAR);
+		    }
+		}
+		if (opt_idx >= 0)
+		    options[opt_idx].flags |= P_WAS_SET;
+	    }
+
+skip:
+	    /*
+	     * Advance to next argument.
+	     * - skip until a blank found, taking care of backslashes
+	     * - skip blanks
+	     * - skip one "=val" argument (for hidden options ":set gfn =xx")
+	     */
+	    for (i = 0; i < 2 ; ++i)
+	    {
+		while (*arg != NUL && !vim_iswhite(*arg))
+		    if (*arg++ == '\\' && *arg != NUL)
+			++arg;
+		arg = skipwhite(arg);
+		if (*arg != '=')
+		    break;
+	    }
+	}
+
+	if (errmsg != NULL)
+	{
+	    STRNCPY(IObuff, _(errmsg), IOSIZE - 1);
+	    IObuff[IOSIZE - 1] = NUL;
+	    i = STRLEN(IObuff) + 2;
+	    if (i + (arg - startarg) < IOSIZE)
+	    {
+		/* append the argument with the error */
+		STRCAT(IObuff, ": ");
+		mch_memmove(IObuff + i, startarg, (arg - startarg));
+		IObuff[i + (arg - startarg)] = NUL;
+	    }
+	    /* make sure all characters are printable */
+	    trans_characters(IObuff, IOSIZE);
+
+	    ++no_wait_return;	/* wait_return done later */
+	    emsg(IObuff);	/* show error highlighted */
+	    --no_wait_return;
+
+	    return FAIL;
+	}
+
+	arg = skipwhite(arg);
+    }
+
+    return OK;
+}
+
+    static char_u *
+illegal_char(errbuf, c)
+    char_u	*errbuf;
+    int		c;
+{
+    if (errbuf == NULL)
+	return (char_u *)"";
+    sprintf((char *)errbuf, _("E539: Illegal character <%s>"),
+	    (char *)transchar(c));
+    return errbuf;
+}
+
+/*
+ * Convert a key name or string into a key value.
+ * Used for 'wildchar' and 'cedit' options.
+ */
+    static int
+string_to_key(arg)
+    char_u	*arg;
+{
+    if (*arg == '<')
+	return find_key_option(arg + 1);
+    if (*arg == '^')
+	return Ctrl_chr(arg[1]);
+    return *arg;
+}
+
+#ifdef FEAT_CMDWIN
+/*
+ * Check value of 'cedit' and set cedit_key.
+ * Returns NULL if value is OK, error message otherwise.
+ */
+    static char_u *
+check_cedit()
+{
+    int n;
+
+    if (*p_cedit == NUL)
+	cedit_key = -1;
+    else
+    {
+	n = string_to_key(p_cedit);
+	if (vim_isprintc(n))
+	    return e_invarg;
+	cedit_key = n;
+    }
+    return NULL;
+}
+#endif
+
+#ifdef FEAT_TITLE
+/*
+ * When changing 'title', 'titlestring', 'icon' or 'iconstring', call
+ * maketitle() to create and display it.
+ * When switching the title or icon off, call mch_restore_title() to get
+ * the old value back.
+ */
+    static void
+did_set_title(icon)
+    int	    icon;	    /* Did set icon instead of title */
+{
+    if (starting != NO_SCREEN
+#ifdef FEAT_GUI
+	    && !gui.starting
+#endif
+				)
+    {
+	maketitle();
+	if (icon)
+	{
+	    if (!p_icon)
+		mch_restore_title(2);
+	}
+	else
+	{
+	    if (!p_title)
+		mch_restore_title(1);
+	}
+    }
+}
+#endif
+
+/*
+ * set_options_bin -  called when 'bin' changes value.
+ */
+    void
+set_options_bin(oldval, newval, opt_flags)
+    int		oldval;
+    int		newval;
+    int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
+{
+    /*
+     * The option values that are changed when 'bin' changes are
+     * copied when 'bin is set and restored when 'bin' is reset.
+     */
+    if (newval)
+    {
+	if (!oldval)		/* switched on */
+	{
+	    if (!(opt_flags & OPT_GLOBAL))
+	    {
+		curbuf->b_p_tw_nobin = curbuf->b_p_tw;
+		curbuf->b_p_wm_nobin = curbuf->b_p_wm;
+		curbuf->b_p_ml_nobin = curbuf->b_p_ml;
+		curbuf->b_p_et_nobin = curbuf->b_p_et;
+	    }
+	    if (!(opt_flags & OPT_LOCAL))
+	    {
+		p_tw_nobin = p_tw;
+		p_wm_nobin = p_wm;
+		p_ml_nobin = p_ml;
+		p_et_nobin = p_et;
+	    }
+	}
+
+	if (!(opt_flags & OPT_GLOBAL))
+	{
+	    curbuf->b_p_tw = 0;	/* no automatic line wrap */
+	    curbuf->b_p_wm = 0;	/* no automatic line wrap */
+	    curbuf->b_p_ml = 0;	/* no modelines */
+	    curbuf->b_p_et = 0;	/* no expandtab */
+	}
+	if (!(opt_flags & OPT_LOCAL))
+	{
+	    p_tw = 0;
+	    p_wm = 0;
+	    p_ml = FALSE;
+	    p_et = FALSE;
+	    p_bin = TRUE;	/* needed when called for the "-b" argument */
+	}
+    }
+    else if (oldval)		/* switched off */
+    {
+	if (!(opt_flags & OPT_GLOBAL))
+	{
+	    curbuf->b_p_tw = curbuf->b_p_tw_nobin;
+	    curbuf->b_p_wm = curbuf->b_p_wm_nobin;
+	    curbuf->b_p_ml = curbuf->b_p_ml_nobin;
+	    curbuf->b_p_et = curbuf->b_p_et_nobin;
+	}
+	if (!(opt_flags & OPT_LOCAL))
+	{
+	    p_tw = p_tw_nobin;
+	    p_wm = p_wm_nobin;
+	    p_ml = p_ml_nobin;
+	    p_et = p_et_nobin;
+	}
+    }
+}
+
+#ifdef FEAT_VIMINFO
+/*
+ * Find the parameter represented by the given character (eg ', :, ", or /),
+ * and return its associated value in the 'viminfo' string.
+ * Only works for number parameters, not for 'r' or 'n'.
+ * If the parameter is not specified in the string, return -1.
+ */
+    int
+get_viminfo_parameter(type)
+    int	    type;
+{
+    char_u  *p;
+
+    p = find_viminfo_parameter(type);
+    if (p != NULL && VIM_ISDIGIT(*p))
+	return atoi((char *)p);
+    return -1;
+}
+
+/*
+ * Find the parameter represented by the given character (eg ''', ':', '"', or
+ * '/') in the 'viminfo' option and return a pointer to the string after it.
+ * Return NULL if the parameter is not specified in the string.
+ */
+    char_u *
+find_viminfo_parameter(type)
+    int	    type;
+{
+    char_u  *p;
+
+    for (p = p_viminfo; *p; ++p)
+    {
+	if (*p == type)
+	    return p + 1;
+	if (*p == 'n')		    /* 'n' is always the last one */
+	    break;
+	p = vim_strchr(p, ',');	    /* skip until next ',' */
+	if (p == NULL)		    /* hit the end without finding parameter */
+	    break;
+    }
+    return NULL;
+}
+#endif
+
+/*
+ * Expand environment variables for some string options.
+ * These string options cannot be indirect!
+ * If "val" is NULL expand the current value of the option.
+ * Return pointer to NameBuff, or NULL when not expanded.
+ */
+    static char_u *
+option_expand(opt_idx, val)
+    int		opt_idx;
+    char_u	*val;
+{
+    /* if option doesn't need expansion nothing to do */
+    if (!(options[opt_idx].flags & P_EXPAND) || options[opt_idx].var == NULL)
+	return NULL;
+
+    /* If val is longer than MAXPATHL no meaningful expansion can be done,
+     * expand_env() would truncate the string. */
+    if (val != NULL && STRLEN(val) > MAXPATHL)
+	return NULL;
+
+    if (val == NULL)
+	val = *(char_u **)options[opt_idx].var;
+
+    /*
+     * Expanding this with NameBuff, expand_env() must not be passed IObuff.
+     * Escape spaces when expanding 'tags', they are used to separate file
+     * names.
+     */
+    expand_env_esc(val, NameBuff, MAXPATHL,
+				  (char_u **)options[opt_idx].var == &p_tags);
+    if (STRCMP(NameBuff, val) == 0)   /* they are the same */
+	return NULL;
+
+    return NameBuff;
+}
+
+/*
+ * After setting various option values: recompute variables that depend on
+ * option values.
+ */
+    static void
+didset_options()
+{
+    /* initialize the table for 'iskeyword' et.al. */
+    (void)init_chartab();
+
+    (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE);
+    (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE);
+#ifdef FEAT_SESSION
+    (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE);
+    (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE);
+#endif
+#ifdef FEAT_FOLDING
+    (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE);
+#endif
+    (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE);
+#ifdef FEAT_VIRTUALEDIT
+    (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE);
+#endif
+#if defined(FEAT_MOUSE) && (defined(UNIX) || defined(VMS))
+    (void)opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE);
+#endif
+#if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
+    (void)opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, TRUE);
+#endif
+#if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
+    (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE);
+#endif
+#ifdef FEAT_CMDWIN
+    /* set cedit_key */
+    (void)check_cedit();
+#endif
+}
+
+/*
+ * Check for string options that are NULL (normally only termcap options).
+ */
+    void
+check_options()
+{
+    int		opt_idx;
+
+    for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++)
+	if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL)
+	    check_string_option((char_u **)get_varp(&(options[opt_idx])));
+}
+
+/*
+ * Check string options in a buffer for NULL value.
+ */
+    void
+check_buf_options(buf)
+    buf_T	*buf;
+{
+#if defined(FEAT_QUICKFIX)
+    check_string_option(&buf->b_p_bh);
+    check_string_option(&buf->b_p_bt);
+#endif
+#ifdef FEAT_MBYTE
+    check_string_option(&buf->b_p_fenc);
+#endif
+    check_string_option(&buf->b_p_ff);
+#ifdef FEAT_FIND_ID
+    check_string_option(&buf->b_p_def);
+    check_string_option(&buf->b_p_inc);
+# ifdef FEAT_EVAL
+    check_string_option(&buf->b_p_inex);
+# endif
+#endif
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+    check_string_option(&buf->b_p_inde);
+    check_string_option(&buf->b_p_indk);
+#endif
+#ifdef FEAT_CRYPT
+    check_string_option(&buf->b_p_key);
+#endif
+    check_string_option(&buf->b_p_kp);
+    check_string_option(&buf->b_p_mps);
+    check_string_option(&buf->b_p_fo);
+    check_string_option(&buf->b_p_isk);
+#ifdef FEAT_COMMENTS
+    check_string_option(&buf->b_p_com);
+#endif
+#ifdef FEAT_FOLDING
+    check_string_option(&buf->b_p_cms);
+#endif
+    check_string_option(&buf->b_p_nf);
+#ifdef FEAT_SYN_HL
+    check_string_option(&buf->b_p_syn);
+#endif
+#ifdef FEAT_SEARCHPATH
+    check_string_option(&buf->b_p_sua);
+#endif
+#ifdef FEAT_CINDENT
+    check_string_option(&buf->b_p_cink);
+    check_string_option(&buf->b_p_cino);
+#endif
+#ifdef FEAT_AUTOCMD
+    check_string_option(&buf->b_p_ft);
+#endif
+#ifdef FEAT_OSFILETYPE
+    check_string_option(&buf->b_p_oft);
+#endif
+#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
+    check_string_option(&buf->b_p_cinw);
+#endif
+#ifdef FEAT_INS_EXPAND
+    check_string_option(&buf->b_p_cpt);
+#endif
+#ifdef FEAT_KEYMAP
+    check_string_option(&buf->b_p_keymap);
+#endif
+#ifdef FEAT_QUICKFIX
+    check_string_option(&buf->b_p_gp);
+    check_string_option(&buf->b_p_mp);
+    check_string_option(&buf->b_p_efm);
+#endif
+    check_string_option(&buf->b_p_ep);
+    check_string_option(&buf->b_p_path);
+    check_string_option(&buf->b_p_tags);
+#ifdef FEAT_INS_EXPAND
+    check_string_option(&buf->b_p_dict);
+    check_string_option(&buf->b_p_tsr);
+#endif
+}
+
+/*
+ * Free the string allocated for an option.
+ * Checks for the string being empty_option. This may happen if we're out of
+ * memory, vim_strsave() returned NULL, which was replaced by empty_option by
+ * check_options().
+ * Does NOT check for P_ALLOCED flag!
+ */
+    void
+free_string_option(p)
+    char_u	*p;
+{
+    if (p != empty_option)
+	vim_free(p);
+}
+
+    void
+clear_string_option(pp)
+    char_u	**pp;
+{
+    if (*pp != empty_option)
+	vim_free(*pp);
+    *pp = empty_option;
+}
+
+    static void
+check_string_option(pp)
+    char_u	**pp;
+{
+    if (*pp == NULL)
+	*pp = empty_option;
+}
+
+/*
+ * Mark a terminal option as allocated, found by a pointer into term_strings[].
+ */
+    void
+set_term_option_alloced(p)
+    char_u **p;
+{
+    int		opt_idx;
+
+    for (opt_idx = 1; options[opt_idx].fullname != NULL; opt_idx++)
+	if (options[opt_idx].var == (char_u *)p)
+	{
+	    options[opt_idx].flags |= P_ALLOCED;
+	    return;
+	}
+    return; /* cannot happen: didn't find it! */
+}
+
+/*
+ * Set a string option to a new value (without checking the effect).
+ * The string is copied into allocated memory.
+ * if ("opt_idx" == -1) "name" is used, otherwise "opt_idx" is used.
+ */
+    void
+set_string_option_direct(name, opt_idx, val, opt_flags)
+    char_u	*name;
+    int		opt_idx;
+    char_u	*val;
+    int		opt_flags;	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
+{
+    char_u	*s;
+    char_u	**varp;
+    int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
+
+    if (opt_idx == -1)		/* use name */
+    {
+	opt_idx = findoption(name);
+	if (opt_idx == -1)	/* not found (should not happen) */
+	    return;
+    }
+
+    if (options[opt_idx].var == NULL)	/* can't set hidden option */
+	return;
+
+    s = vim_strsave(val);
+    if (s != NULL)
+    {
+	varp = (char_u **)get_varp_scope(&(options[opt_idx]),
+					       both ? OPT_LOCAL : opt_flags);
+	if ((opt_flags & OPT_FREE) && (options[opt_idx].flags & P_ALLOCED))
+	    free_string_option(*varp);
+	*varp = s;
+
+	/* For buffer/window local option may also set the global value. */
+	if (both)
+	    set_string_option_global(opt_idx, varp);
+
+	options[opt_idx].flags |= P_ALLOCED;
+
+	/* When setting both values of a global option with a local value,
+	 * make the local value empty, so that the global value is used. */
+	if ((int)options[opt_idx].indir >= PV_BOTH && both)
+	{
+	    free_string_option(*varp);
+	    *varp = empty_option;
+	}
+    }
+}
+
+/*
+ * Set global value for string option when it's a local option.
+ */
+    static void
+set_string_option_global(opt_idx, varp)
+    int		opt_idx;	/* option index */
+    char_u	**varp;		/* pointer to option variable */
+{
+    char_u	**p, *s;
+
+    /* the global value is always allocated */
+    if (options[opt_idx].var == VAR_WIN)
+	p = (char_u **)GLOBAL_WO(varp);
+    else
+	p = (char_u **)options[opt_idx].var;
+    if (options[opt_idx].indir != PV_NONE
+	    && p != varp
+	    && (s = vim_strsave(*varp)) != NULL)
+    {
+	free_string_option(*p);
+	*p = s;
+    }
+}
+
+/*
+ * Set a string option to a new value, and handle the effects.
+ */
+    static void
+set_string_option(opt_idx, value, opt_flags)
+    int		opt_idx;
+    char_u	*value;
+    int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
+{
+    char_u	*s;
+    char_u	**varp;
+    char_u	*oldval;
+
+    if (options[opt_idx].var == NULL)	/* don't set hidden option */
+	return;
+
+    s = vim_strsave(value);
+    if (s != NULL)
+    {
+	varp = (char_u **)get_varp_scope(&(options[opt_idx]),
+		(opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
+		    ? ((int)options[opt_idx].indir >= PV_BOTH
+			? OPT_GLOBAL : OPT_LOCAL)
+		    : opt_flags);
+	oldval = *varp;
+	*varp = s;
+	options[opt_idx].flags |= P_WAS_SET;
+	(void)did_set_string_option(opt_idx, varp, TRUE, oldval, NULL,
+								   opt_flags);
+    }
+}
+
+/*
+ * Handle string options that need some action to perform when changed.
+ * Returns NULL for success, or an error message for an error.
+ */
+    static char_u *
+did_set_string_option(opt_idx, varp, new_value_alloced, oldval, errbuf,
+								    opt_flags)
+    int		opt_idx;		/* index in options[] table */
+    char_u	**varp;			/* pointer to the option variable */
+    int		new_value_alloced;	/* new value was allocated */
+    char_u	*oldval;		/* previous value of the option */
+    char_u	*errbuf;		/* buffer for errors, or NULL */
+    int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
+{
+    char_u	*errmsg = NULL;
+    char_u	*s, *p;
+    int		did_chartab = FALSE;
+    char_u	**gvarp;
+
+    /* Get the global option to compare with, otherwise we would have to check
+     * two values for all local options. */
+    gvarp = (char_u **)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL);
+
+    /* Disallow changing some options from secure mode */
+    if ((secure
+#ifdef HAVE_SANDBOX
+		|| sandbox != 0
+#endif
+		) && (options[opt_idx].flags & P_SECURE))
+    {
+	errmsg = e_secure;
+    }
+
+    /* 'term' */
+    else if (varp == &T_NAME)
+    {
+	if (T_NAME[0] == NUL)
+	    errmsg = (char_u *)N_("E529: Cannot set 'term' to empty string");
+#ifdef FEAT_GUI
+	if (gui.in_use)
+	    errmsg = (char_u *)N_("E530: Cannot change term in GUI");
+	else if (term_is_gui(T_NAME))
+	    errmsg = (char_u *)N_("E531: Use \":gui\" to start the GUI");
+#endif
+	else if (set_termname(T_NAME) == FAIL)
+	    errmsg = (char_u *)N_("E522: Not found in termcap");
+	else
+	    /* Screen colors may have changed. */
+	    redraw_later_clear();
+    }
+
+    /* 'backupcopy' */
+    else if (varp == &p_bkc)
+    {
+	if (opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+	if (((bkc_flags & BKC_AUTO) != 0)
+		+ ((bkc_flags & BKC_YES) != 0)
+		+ ((bkc_flags & BKC_NO) != 0) != 1)
+	{
+	    /* Must have exactly one of "auto", "yes"  and "no". */
+	    (void)opt_strings_flags(oldval, p_bkc_values, &bkc_flags, TRUE);
+	    errmsg = e_invarg;
+	}
+    }
+
+    /* 'backupext' and 'patchmode' */
+    else if (varp == &p_bex || varp == &p_pm)
+    {
+	if (STRCMP(*p_bex == '.' ? p_bex + 1 : p_bex,
+		     *p_pm == '.' ? p_pm + 1 : p_pm) == 0)
+	    errmsg = (char_u *)N_("E589: 'backupext' and 'patchmode' are equal");
+    }
+
+    /*
+     * 'isident', 'iskeyword', 'isprint or 'isfname' option: refill chartab[]
+     * If the new option is invalid, use old value.  'lisp' option: refill
+     * chartab[] for '-' char
+     */
+    else if (  varp == &p_isi
+	    || varp == &(curbuf->b_p_isk)
+	    || varp == &p_isp
+	    || varp == &p_isf)
+    {
+	if (init_chartab() == FAIL)
+	{
+	    did_chartab = TRUE;	    /* need to restore it below */
+	    errmsg = e_invarg;	    /* error in value */
+	}
+    }
+
+    /* 'helpfile' */
+    else if (varp == &p_hf)
+    {
+	/* May compute new values for $VIM and $VIMRUNTIME */
+	if (didset_vim)
+	{
+	    vim_setenv((char_u *)"VIM", (char_u *)"");
+	    didset_vim = FALSE;
+	}
+	if (didset_vimruntime)
+	{
+	    vim_setenv((char_u *)"VIMRUNTIME", (char_u *)"");
+	    didset_vimruntime = FALSE;
+	}
+    }
+
+#ifdef FEAT_MULTI_LANG
+    /* 'helplang' */
+    else if (varp == &p_hlg)
+    {
+	/* Check for "", "ab", "ab,cd", etc. */
+	for (s = p_hlg; *s != NUL; s += 3)
+	{
+	    if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL))
+	    {
+		errmsg = e_invarg;
+		break;
+	    }
+	    if (s[2] == NUL)
+		break;
+	}
+    }
+#endif
+
+    /* 'highlight' */
+    else if (varp == &p_hl)
+    {
+	if (highlight_changed() == FAIL)
+	    errmsg = e_invarg;	/* invalid flags */
+    }
+
+    /* 'nrformats' */
+    else if (gvarp == &p_nf)
+    {
+	if (check_opt_strings(*varp, p_nf_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+
+#ifdef FEAT_SESSION
+    /* 'sessionoptions' */
+    else if (varp == &p_ssop)
+    {
+	if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+	if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR))
+	{
+	    /* Don't allow both "sesdir" and "curdir". */
+	    (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, TRUE);
+	    errmsg = e_invarg;
+	}
+    }
+    /* 'viewoptions' */
+    else if (varp == &p_vop)
+    {
+	if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+    /* 'scrollopt' */
+#ifdef FEAT_SCROLLBIND
+    else if (varp == &p_sbo)
+    {
+	if (check_opt_strings(p_sbo, p_scbopt_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+    /* 'ambiwidth' */
+#ifdef FEAT_MBYTE
+    else if (varp == &p_ambw)
+    {
+	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+    /* 'background' */
+    else if (varp == &p_bg)
+    {
+	if (check_opt_strings(p_bg, p_bg_values, FALSE) == OK)
+	{
+#ifdef FEAT_EVAL
+	    int dark = (*p_bg == 'd');
+#endif
+
+	    init_highlight(FALSE, FALSE);
+
+#ifdef FEAT_EVAL
+	    if (dark != (*p_bg == 'd')
+			  && get_var_value((char_u *)"g:colors_name") != NULL)
+	    {
+		/* The color scheme must have set 'background' back to another
+		 * value, that's not what we want here.  Disable the color
+		 * scheme and set the colors again. */
+		do_unlet((char_u *)"g:colors_name");
+		free_string_option(p_bg);
+		p_bg = vim_strsave((char_u *)(dark ? "dark" : "light"));
+		check_string_option(&p_bg);
+		init_highlight(FALSE, FALSE);
+	    }
+#endif
+	}
+	else
+	    errmsg = e_invarg;
+    }
+
+    /* 'wildmode' */
+    else if (varp == &p_wim)
+    {
+	if (check_opt_wim() == FAIL)
+	    errmsg = e_invarg;
+    }
+
+#ifdef FEAT_WAK
+    /* 'winaltkeys' */
+    else if (varp == &p_wak)
+    {
+	if (*p_wak == NUL
+		|| check_opt_strings(p_wak, p_wak_values, FALSE) != OK)
+	    errmsg = e_invarg;
+# ifdef FEAT_MENU
+#  ifdef FEAT_GUI_MOTIF
+	else if (gui.in_use)
+	    gui_motif_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
+#  else
+#   ifdef FEAT_GUI_GTK
+	else if (gui.in_use)
+	    gui_gtk_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm');
+#   endif
+#  endif
+# endif
+    }
+#endif
+
+#ifdef FEAT_AUTOCMD
+    /* 'eventignore' */
+    else if (varp == &p_ei)
+    {
+	if (check_ei() == FAIL)
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_MBYTE
+    /* 'encoding' and 'fileencoding' */
+    else if (varp == &p_enc || gvarp == &p_fenc || varp == &p_tenc)
+    {
+	if (gvarp == &p_fenc)
+	{
+	    if (!curbuf->b_p_ma)
+		errmsg = e_modifiable;
+	    else if (vim_strchr(*varp, ',') != NULL)
+		/* No comma allowed in 'fileencoding'; catches confusing it
+		 * with 'fileencodings'. */
+		errmsg = e_invarg;
+# ifdef FEAT_TITLE
+	    else
+		/* May show a "+" in the title now. */
+		need_maketitle = TRUE;
+# endif
+	}
+	if (errmsg == NULL)
+	{
+	    /* canonize the value, so that STRCMP() can be used on it */
+	    p = enc_canonize(*varp);
+	    if (p != NULL)
+	    {
+		vim_free(*varp);
+		*varp = p;
+	    }
+	    if (varp == &p_enc)
+	    {
+		errmsg = mb_init();
+# ifdef FEAT_TITLE
+		need_maketitle = TRUE;
+# endif
+	    }
+	}
+
+# if defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
+	if (errmsg == NULL && varp == &p_tenc && gui.in_use)
+	{
+	    /* GTK+ 2 uses only a single encoding, and that is UTF-8. */
+	    if (STRCMP(p_tenc, "utf-8") != 0)
+		errmsg = (char_u *)N_("E617: Cannot be changed in the GTK+ 2 GUI");
+	}
+# endif
+
+	if (errmsg == NULL)
+	{
+# ifdef FEAT_KEYMAP
+	    /* When 'keymap' is used and 'encoding' changes, reload the keymap
+	     * (with another encoding). */
+	    if (varp == &p_enc && *curbuf->b_p_keymap != NUL)
+		(void)keymap_init();
+# endif
+
+	    /* When 'termencoding' is not empty and 'encoding' changes or when
+	     * 'termencoding' changes, need to setup for keyboard input and
+	     * display output conversion. */
+	    if (((varp == &p_enc && *p_tenc != NUL) || varp == &p_tenc))
+	    {
+		convert_setup(&input_conv, p_tenc, p_enc);
+		convert_setup(&output_conv, p_enc, p_tenc);
+	    }
+	}
+    }
+#endif
+
+#if defined(FEAT_POSTSCRIPT)
+    else if (varp == &p_penc)
+    {
+	/* Canonize printencoding if VIM standard one */
+	p = enc_canonize(p_penc);
+	if (p != NULL)
+	{
+	    vim_free(p_penc);
+	    p_penc = p;
+	}
+	else
+	{
+	    /* Ensure lower case and '-' for '_' */
+	    for (s = p_penc; *s != NUL; s++)
+	    {
+		if (*s == '_')
+		    *s = '-';
+		else
+		    *s = TOLOWER_ASC(*s);
+	    }
+	}
+    }
+#endif
+
+#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
+    else if (varp == &p_imak)
+    {
+	if (gui.in_use && !im_xim_isvalid_imactivate())
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_KEYMAP
+    else if (varp == &curbuf->b_p_keymap)
+    {
+	/* load or unload key mapping tables */
+	errmsg = keymap_init();
+
+	/* When successfully installed a new keymap switch on using it. */
+	if (*curbuf->b_p_keymap != NUL && errmsg == NULL)
+	{
+	    curbuf->b_p_iminsert = B_IMODE_LMAP;
+	    if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT)
+		curbuf->b_p_imsearch = B_IMODE_LMAP;
+	    set_iminsert_global();
+	    set_imsearch_global();
+# ifdef FEAT_WINDOWS
+	    status_redraw_curbuf();
+# endif
+	}
+    }
+#endif
+
+    /* 'fileformat' */
+    else if (gvarp == &p_ff)
+    {
+	if (!curbuf->b_p_ma && !(opt_flags & OPT_GLOBAL))
+	    errmsg = e_modifiable;
+	else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+	    /* may also change 'textmode' */
+	    if (get_fileformat(curbuf) == EOL_DOS)
+		curbuf->b_p_tx = TRUE;
+	    else
+		curbuf->b_p_tx = FALSE;
+#ifdef FEAT_TITLE
+	    need_maketitle = TRUE;
+#endif
+	}
+    }
+
+    /* 'fileformats' */
+    else if (varp == &p_ffs)
+    {
+	if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+	    /* also change 'textauto' */
+	    if (*p_ffs == NUL)
+		p_ta = FALSE;
+	    else
+		p_ta = TRUE;
+	}
+    }
+
+#if defined(FEAT_CRYPT) && defined(FEAT_CMDHIST)
+    /* 'cryptkey' */
+    else if (gvarp == &p_key)
+    {
+	/* Make sure the ":set" command doesn't show the new value in the
+	 * history. */
+	remove_key_from_history();
+    }
+#endif
+
+    /* 'matchpairs' */
+    else if (gvarp == &p_mps)
+    {
+	/* Check for "x:y,x:y" */
+	for (p = *varp; *p != NUL; p += 4)
+	{
+	    if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ','))
+	    {
+		errmsg = e_invarg;
+		break;
+	    }
+	    if (p[3] == NUL)
+		break;
+	}
+    }
+
+#ifdef FEAT_COMMENTS
+    /* 'comments' */
+    else if (gvarp == &p_com)
+    {
+	for (s = *varp; *s; )
+	{
+	    while (*s && *s != ':')
+	    {
+		if (vim_strchr((char_u *)COM_ALL, *s) == NULL
+					     && !VIM_ISDIGIT(*s) && *s != '-')
+		{
+		    errmsg = illegal_char(errbuf, *s);
+		    break;
+		}
+		++s;
+	    }
+	    if (*s++ == NUL)
+		errmsg = (char_u *)N_("E524: Missing colon");
+	    else if (*s == ',' || *s == NUL)
+		errmsg = (char_u *)N_("E525: Zero length string");
+	    if (errmsg != NULL)
+		break;
+	    while (*s && *s != ',')
+	    {
+		if (*s == '\\' && s[1] != NUL)
+		    ++s;
+		++s;
+	    }
+	    s = skip_to_option_part(s);
+	}
+    }
+#endif
+
+    /* 'listchars' */
+    else if (varp == &p_lcs)
+    {
+	errmsg = set_chars_option(varp);
+    }
+
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+    /* 'fillchars' */
+    else if (varp == &p_fcs)
+    {
+	errmsg = set_chars_option(varp);
+    }
+#endif
+
+#ifdef FEAT_CMDWIN
+    /* 'cedit' */
+    else if (varp == &p_cedit)
+    {
+	errmsg = check_cedit();
+    }
+#endif
+
+#ifdef FEAT_VIMINFO
+    /* 'viminfo' */
+    else if (varp == &p_viminfo)
+    {
+	for (s = p_viminfo; *s;)
+	{
+	    /* Check it's a valid character */
+	    if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL)
+	    {
+		errmsg = illegal_char(errbuf, *s);
+		break;
+	    }
+	    if (*s == 'n')	/* name is always last one */
+	    {
+		break;
+	    }
+	    else if (*s == 'r') /* skip until next ',' */
+	    {
+		while (*++s && *s != ',')
+		    ;
+	    }
+	    else if (*s == '%' || *s == '!' || *s == 'h' || *s == 'c')
+		++s;		/* no extra chars */
+	    else		/* must have a number */
+	    {
+		while (vim_isdigit(*++s))
+		    ;
+
+		if (!VIM_ISDIGIT(*(s - 1)))
+		{
+		    if (errbuf != NULL)
+		    {
+			sprintf((char *)errbuf, _("E526: Missing number after <%s>"),
+						    transchar_byte(*(s - 1)));
+			errmsg = errbuf;
+		    }
+		    else
+			errmsg = (char_u *)"";
+		    break;
+		}
+	    }
+	    if (*s == ',')
+		++s;
+	    else if (*s)
+	    {
+		if (errbuf != NULL)
+		    errmsg = (char_u *)N_("E527: Missing comma");
+		else
+		    errmsg = (char_u *)"";
+		break;
+	    }
+	}
+	if (*p_viminfo && errmsg == NULL && get_viminfo_parameter('\'') < 0)
+	    errmsg = (char_u *)N_("E528: Must specify a ' value");
+    }
+#endif /* FEAT_VIMINFO */
+
+    /* terminal options */
+    else if (istermoption(&options[opt_idx]) && full_screen)
+    {
+	/* ":set t_Co=0" and ":set t_Co=1" do ":set t_Co=" */
+	if (varp == &T_CCO)
+	{
+	    t_colors = atoi((char *)T_CCO);
+	    if (t_colors <= 1)
+	    {
+		if (new_value_alloced)
+		    vim_free(T_CCO);
+		T_CCO = empty_option;
+	    }
+	    /* We now have a different color setup, initialize it again. */
+	    init_highlight(TRUE, FALSE);
+	}
+	ttest(FALSE);
+	if (varp == &T_ME)
+	{
+	    out_str(T_ME);
+	    redraw_later(CLEAR);
+#if defined(MSDOS) || (defined(WIN3264) && !defined(FEAT_GUI_W32))
+	    /* Since t_me has been set, this probably means that the user
+	     * wants to use this as default colors.  Need to reset default
+	     * background/foreground colors. */
+	    mch_set_normal_colors();
+#endif
+	}
+    }
+
+#ifdef FEAT_LINEBREAK
+    /* 'showbreak' */
+    else if (varp == &p_sbr)
+    {
+	for (s = p_sbr; *s; )
+	{
+	    if (ptr2cells(s) != 1)
+		errmsg = (char_u *)N_("E595: contains unprintable or wide character");
+# ifdef FEAT_MBYTE
+	    if (has_mbyte)
+		s += (*mb_ptr2len_check)(s);
+	    else
+# endif
+		++s;
+	}
+    }
+#endif
+
+#ifdef FEAT_GUI
+    /* 'guifont' */
+    else if (varp == &p_guifont)
+    {
+	if (gui.in_use)
+	{
+	    p = p_guifont;
+# ifdef FEAT_GUI_GTK
+	    /*
+	     * Put up a font dialog and let the user select a new value.
+	     * If this is cancelled go back to the old value but don't
+	     * give an error message.
+	     */
+	    if (STRCMP(p, "*") == 0)
+	    {
+		p = gui_mch_font_dialog(oldval);
+
+		if (new_value_alloced)
+		    free_string_option(p_guifont);
+
+		p_guifont = (p != NULL) ? p : vim_strsave(oldval);
+		new_value_alloced = TRUE;
+	    }
+# endif
+	    if (p != NULL && gui_init_font(p_guifont, FALSE) != OK)
+	    {
+# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_PHOTON)
+		if (STRCMP(p_guifont, "*") == 0)
+		{
+		    /* Dialog was cancelled: Keep the old value without giving
+		     * an error message. */
+		    if (new_value_alloced)
+			free_string_option(p_guifont);
+		    p_guifont = vim_strsave(oldval);
+		    new_value_alloced = TRUE;
+		}
+		else
+# endif
+		    errmsg = (char_u *)N_("E596: Invalid font(s)");
+	    }
+	}
+    }
+# ifdef FEAT_XFONTSET
+    else if (varp == &p_guifontset)
+    {
+	if (STRCMP(p_guifontset, "*") == 0)
+	    errmsg = (char_u *)N_("E597: can't select fontset");
+	else if (gui.in_use && gui_init_font(p_guifontset, TRUE) != OK)
+	    errmsg = (char_u *)N_("E598: Invalid fontset");
+    }
+# endif
+# ifdef FEAT_MBYTE
+    else if (varp == &p_guifontwide)
+    {
+	if (STRCMP(p_guifontwide, "*") == 0)
+	    errmsg = (char_u *)N_("E533: can't select wide font");
+	else if (gui_get_wide_font() == FAIL)
+	    errmsg = (char_u *)N_("E534: Invalid wide font");
+    }
+# endif
+#endif
+
+#ifdef CURSOR_SHAPE
+    /* 'guicursor' */
+    else if (varp == &p_guicursor)
+	errmsg = parse_shape_opt(SHAPE_CURSOR);
+#endif
+
+#ifdef FEAT_MOUSESHAPE
+    /* 'mouseshape' */
+    else if (varp == &p_mouseshape)
+    {
+	errmsg = parse_shape_opt(SHAPE_MOUSE);
+	update_mouseshape(-1);
+    }
+#endif
+
+#ifdef FEAT_PRINTER
+    else if (varp == &p_popt)
+	errmsg = parse_list_options(p_popt, printer_opts, OPT_PRINT_NUM_OPTIONS);
+#endif
+
+#ifdef FEAT_LANGMAP
+    /* 'langmap' */
+    else if (varp == &p_langmap)
+	langmap_set();
+#endif
+
+#ifdef FEAT_LINEBREAK
+    /* 'breakat' */
+    else if (varp == &p_breakat)
+	fill_breakat_flags();
+#endif
+
+#ifdef FEAT_TITLE
+    /* 'titlestring' and 'iconstring' */
+    else if (varp == &p_titlestring || varp == &p_iconstring)
+    {
+# ifdef FEAT_STL_OPT
+	int	flagval = (varp == &p_titlestring) ? STL_IN_TITLE : STL_IN_ICON;
+
+	/* NULL => statusline syntax */
+	if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL)
+	    stl_syntax |= flagval;
+	else
+	    stl_syntax &= ~flagval;
+# endif
+	did_set_title(varp == &p_iconstring);
+
+    }
+#endif
+
+#ifdef FEAT_GUI
+    /* 'guioptions' */
+    else if (varp == &p_go)
+	gui_init_which_components(oldval);
+#endif
+
+#if defined(FEAT_MOUSE_TTY) && (defined(UNIX) || defined(VMS))
+    /* 'ttymouse' */
+    else if (varp == &p_ttym)
+    {
+	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
+	    errmsg = e_invarg;
+	else
+	    check_mouse_termcode();
+    }
+#endif
+
+#ifdef FEAT_VISUAL
+    /* 'selection' */
+    else if (varp == &p_sel)
+    {
+	if (*p_sel == NUL
+		|| check_opt_strings(p_sel, p_sel_values, FALSE) != OK)
+	    errmsg = e_invarg;
+    }
+
+    /* 'selectmode' */
+    else if (varp == &p_slm)
+    {
+	if (check_opt_strings(p_slm, p_slm_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_BROWSE
+    /* 'browsedir' */
+    else if (varp == &p_bsdir)
+    {
+	if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK
+		&& !mch_isdir(p_bsdir))
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_VISUAL
+    /* 'keymodel' */
+    else if (varp == &p_km)
+    {
+	if (check_opt_strings(p_km, p_km_values, TRUE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+	    km_stopsel = (vim_strchr(p_km, 'o') != NULL);
+	    km_startsel = (vim_strchr(p_km, 'a') != NULL);
+	}
+    }
+#endif
+
+    /* 'mousemodel' */
+    else if (varp == &p_mousem)
+    {
+	if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK)
+	    errmsg = e_invarg;
+#if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002)
+	else if (*p_mousem != *oldval)
+	    /* Changed from "extend" to "popup" or "popup_setpos" or vv: need
+	     * to create or delete the popup menus. */
+	    gui_motif_update_mousemodel(root_menu);
+#endif
+    }
+
+    /* 'switchbuf' */
+    else if (varp == &p_swb)
+    {
+	if (check_opt_strings(p_swb, p_swb_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+
+    /* 'debug' */
+    else if (varp == &p_debug)
+    {
+	if (check_opt_strings(p_debug, p_debug_values, FALSE) != OK)
+	    errmsg = e_invarg;
+    }
+
+    /* 'display' */
+    else if (varp == &p_dy)
+    {
+	if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+	else
+	    (void)init_chartab();
+
+    }
+
+#ifdef FEAT_VERTSPLIT
+    /* 'eadirection' */
+    else if (varp == &p_ead)
+    {
+	if (check_opt_strings(p_ead, p_ead_values, FALSE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_CLIPBOARD
+    /* 'clipboard' */
+    else if (varp == &p_cb)
+	errmsg = check_clipboard_option();
+#endif
+
+#ifdef FEAT_AUTOCMD
+# ifdef FEAT_SYN_HL
+    /* When 'syntax' is set, load the syntax of that name */
+    else if (varp == &(curbuf->b_p_syn))
+    {
+	apply_autocmds(EVENT_SYNTAX, curbuf->b_p_syn,
+					     curbuf->b_fname, TRUE, curbuf);
+    }
+# endif
+
+    /* When 'filetype' is set, trigger the FileType autocommands of that name */
+    else if (varp == &(curbuf->b_p_ft))
+    {
+	did_filetype = TRUE;
+	apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft,
+					     curbuf->b_fname, TRUE, curbuf);
+    }
+#endif
+
+#ifdef FEAT_QUICKFIX
+    /* When 'bufhidden' is set, check for valid value. */
+    else if (gvarp == &p_bh)
+    {
+	if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE) != OK)
+	    errmsg = e_invarg;
+    }
+
+    /* When 'buftype' is set, check for valid value. */
+    else if (gvarp == &p_bt)
+    {
+	if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+# ifdef FEAT_WINDOWS
+	    if (curwin->w_status_height)
+	    {
+		curwin->w_redr_status = TRUE;
+		redraw_later(VALID);
+	    }
+# endif
+	    curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
+	}
+    }
+#endif
+
+#ifdef FEAT_STL_OPT
+    /* 'statusline' or 'rulerformat' */
+    else if (varp == &p_stl || varp == &p_ruf)
+    {
+	int wid;
+
+	if (varp == &p_ruf)	/* reset ru_wid first */
+	    ru_wid = 0;
+	s = *varp;
+	if (varp == &p_ruf && *s == '%')
+	{
+	    /* set ru_wid if 'ruf' starts with "%99(" */
+	    if (*++s == '-')	/* ignore a '-' */
+		s++;
+	    wid = getdigits(&s);
+	    if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL)
+		ru_wid = wid;
+	    else
+		errmsg = check_stl_option(p_ruf);
+	}
+	else
+	    errmsg = check_stl_option(s);
+	if (varp == &(p_ruf) && errmsg == NULL)
+	    comp_col();
+    }
+#endif
+
+#ifdef FEAT_INS_EXPAND
+    /* check if it is a valid value for 'complete' -- Acevedo */
+    else if (gvarp == &p_cpt)
+    {
+	for (s = *varp; *s;)
+	{
+	    while(*s == ',' || *s == ' ')
+		s++;
+	    if (!*s)
+		break;
+	    if (vim_strchr((char_u *)".wbuksid]tU", *s) == NULL)
+	    {
+		errmsg = illegal_char(errbuf, *s);
+		break;
+	    }
+	    if (*++s != NUL && *s != ',' && *s != ' ')
+	    {
+		if (s[-1] == 'k' || s[-1] == 's')
+		{
+		    /* skip optional filename after 'k' and 's' */
+		    while (*s && *s != ',' && *s != ' ')
+		    {
+			if (*s == '\\')
+			    ++s;
+			++s;
+		    }
+		}
+		else
+		{
+		    if (errbuf != NULL)
+		    {
+			sprintf((char *)errbuf,
+				     _("E535: Illegal character after <%c>"),
+				     *--s);
+			errmsg = errbuf;
+		    }
+		    else
+			errmsg = (char_u *)"";
+		    break;
+		}
+	    }
+	}
+    }
+#endif /* FEAT_INS_EXPAND */
+
+
+#if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_W32)
+    else if (varp == &p_toolbar)
+    {
+	if (opt_strings_flags(p_toolbar, p_toolbar_values,
+			      &toolbar_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+	    out_flush();
+	    gui_mch_show_toolbar((toolbar_flags &
+				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
+	}
+    }
+#endif
+
+#if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) && defined(HAVE_GTK2)
+    /* 'toolbariconsize': GTK+ 2 only */
+    else if (varp == &p_tbis)
+    {
+	if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK)
+	    errmsg = e_invarg;
+	else
+	{
+	    out_flush();
+	    gui_mch_show_toolbar((toolbar_flags &
+				  (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0);
+	}
+    }
+#endif
+
+    /* 'pastetoggle': translate key codes like in a mapping */
+    else if (varp == &p_pt)
+    {
+	if (*p_pt)
+	{
+	    (void)replace_termcodes(p_pt, &p, TRUE, TRUE);
+	    if (p != NULL)
+	    {
+		if (new_value_alloced)
+		    free_string_option(p_pt);
+		p_pt = p;
+		new_value_alloced = TRUE;
+	    }
+	}
+    }
+
+    /* 'backspace' */
+    else if (varp == &p_bs)
+    {
+	if (VIM_ISDIGIT(*p_bs))
+	{
+	    if (*p_bs >'2' || p_bs[1] != NUL)
+		errmsg = e_invarg;
+	}
+	else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+
+    /* 'casemap' */
+    else if (varp == &p_cmp)
+    {
+	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+
+#ifdef FEAT_DIFF
+    /* 'diffopt' */
+    else if (varp == &p_dip)
+    {
+	if (diffopt_changed() == FAIL)
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_FOLDING
+    /* 'foldmethod' */
+    else if (gvarp == &curwin->w_allbuf_opt.wo_fdm)
+    {
+	if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK
+		|| *curwin->w_p_fdm == NUL)
+	    errmsg = e_invarg;
+	else
+	    foldUpdateAll(curwin);
+    }
+# ifdef FEAT_EVAL
+    /* 'foldexpr' */
+    else if (varp == &curwin->w_p_fde)
+    {
+	if (foldmethodIsExpr(curwin))
+	    foldUpdateAll(curwin);
+    }
+# endif
+    /* 'foldmarker' */
+    else if (gvarp == &curwin->w_allbuf_opt.wo_fmr)
+    {
+	p = vim_strchr(*varp, ',');
+	if (p == NULL)
+	    errmsg = (char_u *)N_("E536: comma required");
+	else if (p == *varp || p[1] == NUL)
+	    errmsg = e_invarg;
+	else if (foldmethodIsMarker(curwin))
+	    foldUpdateAll(curwin);
+    }
+    /* 'commentstring' */
+    else if (gvarp == &p_cms)
+    {
+	if (**varp != NUL && strstr((char *)*varp, "%s") == NULL)
+	    errmsg = (char_u *)N_("E537: 'commentstring' must be empty or contain %s");
+    }
+    /* 'foldopen' */
+    else if (varp == &p_fdo)
+    {
+	if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+    /* 'foldclose' */
+    else if (varp == &p_fcl)
+    {
+	if (check_opt_strings(p_fcl, p_fcl_values, TRUE) != OK)
+	    errmsg = e_invarg;
+    }
+#endif
+
+#ifdef FEAT_VIRTUALEDIT
+    /* 'virtualedit' */
+    else if (varp == &p_ve)
+    {
+	if (opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE) != OK)
+	    errmsg = e_invarg;
+	else if (STRCMP(p_ve, oldval) != 0)
+	{
+	    /* Recompute cursor position in case the new 've' setting
+	     * changes something. */
+	    validate_virtcol();
+	    coladvance(curwin->w_virtcol);
+	}
+    }
+#endif
+
+#if defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)
+    else if (varp == &p_csqf)
+    {
+	if (p_csqf != NULL)
+	{
+	    p = p_csqf;
+	    while (*p != NUL)
+	    {
+		if (vim_strchr((char_u *)CSQF_CMDS, *p) == NULL
+			|| p[1] == NUL
+			|| vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL
+			|| (p[2] != NUL && p[2] != ','))
+		{
+		    errmsg = e_invarg;
+		    break;
+		}
+		else if (p[2] == NUL)
+		    break;
+		else
+		    p += 3;
+	    }
+	}
+    }
+#endif
+
+    /* Options that are a list of flags. */
+    else
+    {
+	p = NULL;
+	if (varp == &p_ww)
+	    p = (char_u *)WW_ALL;
+	if (varp == &p_shm)
+	    p = (char_u *)SHM_ALL;
+	else if (varp == &(p_cpo))
+	    p = (char_u *)CPO_ALL;
+	else if (varp == &(curbuf->b_p_fo))
+	    p = (char_u *)FO_ALL;
+	else if (varp == &p_mouse)
+	{
+#ifdef FEAT_MOUSE
+	    p = (char_u *)MOUSE_ALL;
+#else
+	    if (*p_mouse != NUL)
+		errmsg = (char_u *)N_("E538: No mouse support");
+#endif
+	}
+#if defined(FEAT_GUI)
+	else if (varp == &p_go)
+	    p = (char_u *)GO_ALL;
+#endif
+	if (p != NULL)
+	{
+	    for (s = *varp; *s; ++s)
+		if (vim_strchr(p, *s) == NULL)
+		{
+		    errmsg = illegal_char(errbuf, *s);
+		    break;
+		}
+	}
+    }
+
+    /*
+     * If error detected, restore the previous value.
+     */
+    if (errmsg != NULL)
+    {
+	if (new_value_alloced)
+	    free_string_option(*varp);
+	*varp = oldval;
+	/*
+	 * When resetting some values, need to act on it.
+	 */
+	if (did_chartab)
+	    (void)init_chartab();
+	if (varp == &p_hl)
+	    (void)highlight_changed();
+    }
+    else
+    {
+#ifdef FEAT_EVAL
+	/* Remember where the option was set. */
+	options[opt_idx].scriptID = current_SID;
+#endif
+	/*
+	 * Free string options that are in allocated memory.
+	 */
+	if (options[opt_idx].flags & P_ALLOCED)
+	    free_string_option(oldval);
+	if (new_value_alloced)
+	    options[opt_idx].flags |= P_ALLOCED;
+	else
+	    options[opt_idx].flags &= ~P_ALLOCED;
+
+	if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
+		&& (int)options[opt_idx].indir >= PV_BOTH)
+	{
+	    /* global option with local value set to use global value; free
+	     * the local value and make it empty */
+	    p = get_varp_scope(&(options[opt_idx]), OPT_LOCAL);
+	    free_string_option(*(char_u **)p);
+	    *(char_u **)p = empty_option;
+	}
+
+	/* May set global value for local option. */
+	else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL)
+	    set_string_option_global(opt_idx, varp);
+    }
+
+#ifdef FEAT_MOUSE
+    if (varp == &p_mouse)
+    {
+# ifdef FEAT_MOUSE_TTY
+	if (*p_mouse == NUL)
+	    mch_setmouse(FALSE);    /* switch mouse off */
+	else
+# endif
+	    setmouse();		    /* in case 'mouse' changed */
+    }
+#endif
+
+    if (curwin->w_curswant != MAXCOL)
+	curwin->w_set_curswant = TRUE;  /* in case 'showbreak' changed */
+    check_redraw(options[opt_idx].flags);
+
+    return errmsg;
+}
+
+/*
+ * Handle setting 'listchars' or 'fillchars'.
+ * Returns error message, NULL if it's OK.
+ */
+    static char_u *
+set_chars_option(varp)
+    char_u	**varp;
+{
+    int		round, i, len, entries;
+    char_u	*p, *s;
+    int		c1, c2 = 0;
+    struct charstab
+    {
+	int	*cp;
+	char	*name;
+    };
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+    static struct charstab filltab[] =
+    {
+	{&fill_stl,	"stl"},
+	{&fill_stlnc,	"stlnc"},
+	{&fill_vert,	"vert"},
+	{&fill_fold,	"fold"},
+	{&fill_diff,	"diff"},
+    };
+#endif
+    static struct charstab lcstab[] =
+    {
+	{&lcs_eol,	"eol"},
+	{&lcs_ext,	"extends"},
+	{&lcs_prec,	"precedes"},
+	{&lcs_tab2,	"tab"},
+	{&lcs_trail,	"trail"},
+    };
+    struct charstab *tab;
+
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+    if (varp == &p_lcs)
+#endif
+    {
+	tab = lcstab;
+	entries = sizeof(lcstab) / sizeof(struct charstab);
+    }
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+    else
+    {
+	tab = filltab;
+	entries = sizeof(filltab) / sizeof(struct charstab);
+    }
+#endif
+
+    /* first round: check for valid value, second round: assign values */
+    for (round = 0; round <= 1; ++round)
+    {
+	if (round)
+	{
+	    /* After checking that the value is valid: set defaults: space for
+	     * 'fillchars', NUL for 'listchars' */
+	    for (i = 0; i < entries; ++i)
+		*(tab[i].cp) = (varp == &p_lcs ? NUL : ' ');
+	    if (varp == &p_lcs)
+		lcs_tab1 = NUL;
+#if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
+	    else
+		fill_diff = '-';
+#endif
+	}
+	p = *varp;
+	while (*p)
+	{
+	    for (i = 0; i < entries; ++i)
+	    {
+		len = (int)STRLEN(tab[i].name);
+		if (STRNCMP(p, tab[i].name, len) == 0
+			&& p[len] == ':'
+			&& p[len + 1] != NUL)
+		{
+		    s = p + len + 1;
+#ifdef FEAT_MBYTE
+		    c1 = mb_ptr2char_adv(&s);
+#else
+		    c1 = *s++;
+#endif
+		    if (tab[i].cp == &lcs_tab2)
+		    {
+			if (*s == NUL)
+			    continue;
+#ifdef FEAT_MBYTE
+			c2 = mb_ptr2char_adv(&s);
+#else
+			c2 = *s++;
+#endif
+		    }
+		    if (*s == ',' || *s == NUL)
+		    {
+			if (round)
+			{
+			    if (tab[i].cp == &lcs_tab2)
+			    {
+				lcs_tab1 = c1;
+				lcs_tab2 = c2;
+			    }
+			    else
+				*(tab[i].cp) = c1;
+
+			}
+			p = s;
+			break;
+		    }
+		}
+	    }
+
+	    if (i == entries)
+		return e_invarg;
+	    if (*p == ',')
+		++p;
+	}
+    }
+
+    return NULL;	/* no error */
+}
+
+#ifdef FEAT_STL_OPT
+/*
+ * Check validity of options with the 'statusline' format.
+ * Return error message or NULL.
+ */
+    char_u *
+check_stl_option(s)
+    char_u	*s;
+{
+    int		itemcnt = 0;
+    int		groupdepth = 0;
+    static char_u   errbuf[80];
+
+    while (*s && itemcnt < STL_MAX_ITEM)
+    {
+	/* Check for valid keys after % sequences */
+	while (*s && *s != '%')
+	    s++;
+	if (!*s)
+	    break;
+	s++;
+	if (*s != '%' && *s != ')')
+	    ++itemcnt;
+	if (*s == '%' || *s == STL_TRUNCMARK || *s == STL_MIDDLEMARK)
+	{
+	    s++;
+	    continue;
+	}
+	if (*s == ')')
+	{
+	    s++;
+	    if (--groupdepth < 0)
+		break;
+	    continue;
+	}
+	if (*s == '-')
+	    s++;
+	while (VIM_ISDIGIT(*s))
+	    s++;
+	if (*s == STL_HIGHLIGHT)
+	    continue;
+	if (*s == '.')
+	{
+	    s++;
+	    while (*s && VIM_ISDIGIT(*s))
+		s++;
+	}
+	if (*s == '(')
+	{
+	    groupdepth++;
+	    continue;
+	}
+	if (vim_strchr(STL_ALL, *s) == NULL)
+	{
+	    return illegal_char(errbuf, *s);
+	}
+	if (*s == '{')
+	{
+	    s++;
+	    while (*s != '}' && *s)
+		s++;
+	    if (*s != '}')
+		return (char_u *)N_("E540: Unclosed expression sequence");
+	}
+    }
+    if (itemcnt >= STL_MAX_ITEM)
+	return (char_u *)N_("E541: too many items");
+    if (groupdepth != 0)
+	return (char_u *)N_("E542: unbalanced groups");
+    return NULL;
+}
+#endif
+
+#ifdef FEAT_CLIPBOARD
+/*
+ * Extract the items in the 'clipboard' option and set global values.
+ */
+    static char_u *
+check_clipboard_option()
+{
+    int		new_unnamed = FALSE;
+    int		new_autoselect = FALSE;
+    int		new_autoselectml = FALSE;
+    regprog_T	*new_exclude_prog = NULL;
+    char_u	*errmsg = NULL;
+    char_u	*p;
+
+    for (p = p_cb; *p != NUL; )
+    {
+	if (STRNCMP(p, "unnamed", 7) == 0 && (p[7] == ',' || p[7] == NUL))
+	{
+	    new_unnamed = TRUE;
+	    p += 7;
+	}
+	else if (STRNCMP(p, "autoselect", 10) == 0
+					&& (p[10] == ',' || p[10] == NUL))
+	{
+	    new_autoselect = TRUE;
+	    p += 10;
+	}
+	else if (STRNCMP(p, "autoselectml", 12) == 0
+					&& (p[12] == ',' || p[12] == NUL))
+	{
+	    new_autoselectml = TRUE;
+	    p += 12;
+	}
+	else if (STRNCMP(p, "exclude:", 8) == 0 && new_exclude_prog == NULL)
+	{
+	    p += 8;
+	    new_exclude_prog = vim_regcomp(p, RE_MAGIC);
+	    if (new_exclude_prog == NULL)
+		errmsg = e_invarg;
+	    break;
+	}
+	else
+	{
+	    errmsg = e_invarg;
+	    break;
+	}
+	if (*p == ',')
+	    ++p;
+    }
+    if (errmsg == NULL)
+    {
+	clip_unnamed = new_unnamed;
+	clip_autoselect = new_autoselect;
+	clip_autoselectml = new_autoselectml;
+	vim_free(clip_exclude_prog);
+	clip_exclude_prog = new_exclude_prog;
+    }
+    else
+	vim_free(new_exclude_prog);
+
+    return errmsg;
+}
+#endif
+
+/*
+ * Set the value of a boolean option, and take care of side effects.
+ * Returns NULL for success, or an error message for an error.
+ */
+    static char_u *
+set_bool_option(opt_idx, varp, value, opt_flags)
+    int		opt_idx;		/* index in options[] table */
+    char_u	*varp;			/* pointer to the option variable */
+    int		value;			/* new value */
+    int		opt_flags;		/* OPT_LOCAL and/or OPT_GLOBAL */
+{
+    int		old_value = *(int *)varp;
+
+#ifdef FEAT_GUI
+    need_mouse_correct = TRUE;
+#endif
+
+    /* Disallow changing some options from secure mode */
+    if ((secure
+#ifdef HAVE_SANDBOX
+		|| sandbox != 0
+#endif
+		) && (options[opt_idx].flags & P_SECURE))
+	return e_secure;
+
+    *(int *)varp = value;	    /* set the new value */
+#ifdef FEAT_EVAL
+    /* Remember where the option was set. */
+    options[opt_idx].scriptID = current_SID;
+#endif
+
+    /* May set global value for local option. */
+    if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
+	*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = value;
+
+    /*
+     * Handle side effects of changing a bool option.
+     */
+
+    /* 'compatible' */
+    if ((int *)varp == &p_cp)
+    {
+	compatible_set();
+    }
+
+    /* when 'readonly' is reset globally, also reset readonlymode */
+    else if ((int *)varp == &curbuf->b_p_ro)
+    {
+	if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0)
+	    readonlymode = FALSE;
+#ifdef FEAT_TITLE
+	need_maketitle = TRUE;
+#endif
+    }
+
+#ifdef FEAT_TITLE
+    /* when 'modifiable' is changed, redraw the window title */
+    else if ((int *)varp == &curbuf->b_p_ma)
+	need_maketitle = TRUE;
+    /* when 'endofline' is changed, redraw the window title */
+    else if ((int *)varp == &curbuf->b_p_eol)
+	need_maketitle = TRUE;
+#endif
+
+    /* when 'bin' is set also set some other options */
+    else if ((int *)varp == &curbuf->b_p_bin)
+    {
+	set_options_bin(old_value, curbuf->b_p_bin, opt_flags);
+#ifdef FEAT_TITLE
+	need_maketitle = TRUE;
+#endif
+    }
+
+#ifdef FEAT_AUTOCMD
+    /* when 'buflisted' changes, trigger autocommands */
+    else if ((int *)varp == &curbuf->b_p_bl && old_value != curbuf->b_p_bl)
+    {
+	apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE,
+						    NULL, NULL, TRUE, curbuf);
+    }
+#endif
+
+    /* when 'swf' is set, create swapfile, when reset remove swapfile */
+    else if ((int *)varp == &curbuf->b_p_swf)
+    {
+	if (curbuf->b_p_swf && p_uc)
+	    ml_open_file(curbuf);		/* create the swap file */
+	else
+	    mf_close_file(curbuf, TRUE);	/* remove the swap file */
+    }
+
+    /* when 'terse' is set change 'shortmess' */
+    else if ((int *)varp == &p_terse)
+    {
+	char_u	*p;
+
+	p = vim_strchr(p_shm, SHM_SEARCH);
+
+	/* insert 's' in p_shm */
+	if (p_terse && p == NULL)
+	{
+	    STRCPY(IObuff, p_shm);
+	    STRCAT(IObuff, "s");
+	    set_string_option_direct((char_u *)"shm", -1, IObuff, OPT_FREE);
+	}
+	/* remove 's' from p_shm */
+	else if (!p_terse && p != NULL)
+	    mch_memmove(p, p + 1, STRLEN(p));
+    }
+
+    /* when 'paste' is set or reset also change other options */
+    else if ((int *)varp == &p_paste)
+    {
+	paste_option_changed();
+    }
+
+    /* when 'insertmode' is set from an autocommand need to do work here */
+    else if ((int *)varp == &p_im)
+    {
+	if (p_im)
+	{
+	    if ((State & INSERT) == 0)
+		need_start_insertmode = TRUE;
+	    stop_insert_mode = FALSE;
+	}
+	else
+	{
+	    need_start_insertmode = FALSE;
+	    stop_insert_mode = TRUE;
+	    if (p_smd && restart_edit != 0)
+		clear_cmdline = TRUE;	/* remove "(insert)" */
+	    restart_edit = 0;
+	}
+    }
+
+    /* when 'ignorecase' is set or reset and 'hlsearch' is set, redraw */
+    else if ((int *)varp == &p_ic && p_hls)
+    {
+	redraw_all_later(NOT_VALID);
+    }
+
+#ifdef FEAT_SEARCH_EXTRA
+    /* when 'hlsearch' is set or reset: reset no_hlsearch */
+    else if ((int *)varp == &p_hls)
+    {
+	no_hlsearch = FALSE;
+    }
+#endif
+
+#ifdef FEAT_SCROLLBIND
+    /* when 'scrollbind' is set: snapshot the current position to avoid a jump
+     * at the end of normal_cmd() */
+    else if ((int *)varp == &curwin->w_p_scb)
+    {
+	if (curwin->w_p_scb)
+	    do_check_scrollbind(FALSE);
+    }
+#endif
+
+#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
+    /* There can be only one window with 'previewwindow' set. */
+    else if ((int *)varp == &curwin->w_p_pvw)
+    {
+	if (curwin->w_p_pvw)
+	{
+	    win_T	*win;
+
+	    for (win = firstwin; win != NULL; win = win->w_next)
+		if (win->w_p_pvw && win != curwin)
+		{
+		    curwin->w_p_pvw = FALSE;
+		    return (char_u *)N_("E590: A preview window already exists");
+		}
+	}
+    }
+#endif
+
+    /* when 'textmode' is set or reset also change 'fileformat' */
+    else if ((int *)varp == &curbuf->b_p_tx)
+    {
+	set_fileformat(curbuf->b_p_tx ? EOL_DOS : EOL_UNIX, opt_flags);
+    }
+
+    /* when 'textauto' is set or reset also change 'fileformats' */
+    else if ((int *)varp == &p_ta)
+    {
+	set_string_option_direct((char_u *)"ffs", -1,
+				 p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"",
+							OPT_FREE | opt_flags);
+    }
+
+    /*
+     * When 'lisp' option changes include/exclude '-' in
+     * keyword characters.
+     */
+#ifdef FEAT_LISP
+    else if (varp == (char_u *)&(curbuf->b_p_lisp))
+    {
+	(void)buf_init_chartab(curbuf, FALSE);	    /* ignore errors */
+    }
+#endif
+
+#ifdef FEAT_TITLE
+    /* when 'title' changed, may need to change the title; same for 'icon' */
+    else if ((int *)varp == &p_title)
+    {
+	did_set_title(FALSE);
+    }
+
+    else if ((int *)varp == &p_icon)
+    {
+	did_set_title(TRUE);
+    }
+#endif
+
+    else if ((int *)varp == &curbuf->b_changed)
+    {
+	if (!value)
+	    save_file_ff(curbuf);	/* Buffer is unchanged */
+#ifdef FEAT_TITLE
+	need_maketitle = TRUE;
+#endif
+#ifdef FEAT_AUTOCMD
+	modified_was_set = value;
+#endif
+    }
+
+#ifdef BACKSLASH_IN_FILENAME
+    else if ((int *)varp == &p_ssl)
+    {
+	if (p_ssl)
+	{
+	    psepc = '/';
+	    psepcN = '\\';
+	    pseps[0] = '/';
+	    psepsN[0] = '\\';
+	}
+	else
+	{
+	    psepc = '\\';
+	    psepcN = '/';
+	    pseps[0] = '\\';
+	    psepsN[0] = '/';
+	}
+
+	/* need to adjust the file name arguments and buffer names. */
+	buflist_slash_adjust();
+	alist_slash_adjust();
+# ifdef FEAT_EVAL
+	scriptnames_slash_adjust();
+# endif
+    }
+#endif
+
+    /* If 'wrap' is set, set w_leftcol to zero. */
+    else if ((int *)varp == &curwin->w_p_wrap)
+    {
+	if (curwin->w_p_wrap)
+	    curwin->w_leftcol = 0;
+    }
+
+#ifdef FEAT_WINDOWS
+    else if ((int *)varp == &p_ea)
+    {
+	if (p_ea && !old_value)
+	    win_equal(curwin, FALSE, 0);
+    }
+#endif
+
+    else if ((int *)varp == &p_wiv)
+    {
+	/*
+	 * When 'weirdinvert' changed, set/reset 't_xs'.
+	 * Then set 'weirdinvert' according to value of 't_xs'.
+	 */
+	if (p_wiv && !old_value)
+	    T_XS = (char_u *)"y";
+	else if (!p_wiv && old_value)
+	    T_XS = empty_option;
+	p_wiv = (*T_XS != NUL);
+    }
+
+#if defined(FEAT_BEVAL) && (defined(FEAT_SUN_WORKSHOP) \
+	|| defined(FEAT_NETBEANS_INTG))
+    else if ((int *)varp == &p_beval)
+    {
+	extern BalloonEval	*balloonEval;
+
+	if (p_beval == TRUE)
+	    gui_mch_enable_beval_area(balloonEval);
+	else
+	    gui_mch_disable_beval_area(balloonEval);
+    }
+
+    else if ((int *)varp == &p_acd)
+    {
+	if (p_acd && curbuf->b_ffname != NULL
+				     && vim_chdirfile(curbuf->b_ffname) == OK)
+	    shorten_fnames(TRUE);
+    }
+#endif
+
+#ifdef FEAT_DIFF
+    /* 'diff' */
+    else if ((int *)varp == &curwin->w_p_diff)
+    {
+	win_T	*wp;
+
+	if (!curwin->w_p_diff)
+	{
+	    /* When there is no window showing a diff for this buffer, remove
+	     * it from the diffs. */
+	    for (wp = firstwin; wp != NULL; wp = wp->w_next)
+		if (wp->w_buffer == curwin->w_buffer && wp->w_p_diff)
+		    break;
+	    if (wp == NULL)
+		diff_buf_delete(curwin->w_buffer);
+	}
+	else
+	    diff_buf_add(curwin->w_buffer);
+#ifdef FEAT_FOLDING
+	if (foldmethodIsDiff(curwin))
+	    foldUpdateAll(curwin);
+#endif
+    }
+#endif
+
+#ifdef USE_IM_CONTROL
+    /* 'imdisable' */
+    else if ((int *)varp == &p_imdisable)
+    {
+	/* Only de-activate it here, it will be enabled when changing mode. */
+	if (p_imdisable)
+	    im_set_active(FALSE);
+    }
+#endif
+
+#ifdef FEAT_FKMAP
+    else if ((int *)varp == &p_altkeymap)
+    {
+	if (old_value != p_altkeymap)
+	{
+	    if (!p_altkeymap)
+	    {
+		p_hkmap = p_fkmap;
+		p_fkmap = 0;
+	    }
+	    else
+	    {
+		p_fkmap = p_hkmap;
+		p_hkmap = 0;
+	    }
+	    (void)init_chartab();
+	}
+    }
+
+    /*
+     * In case some second language keymapping options have changed, check
+     * and correct the setting in a consistent way.
+     */
+
+    /*
+     * If hkmap or fkmap are set, reset Arabic keymapping.
+     */
+    if ((p_hkmap || p_fkmap) && p_altkeymap)
+    {
+	p_altkeymap = p_fkmap;
+# ifdef FEAT_ARABIC
+	curwin->w_p_arab = FALSE;
+# endif
+	(void)init_chartab();
+    }
+
+    /*
+     * If hkmap set, reset Farsi keymapping.
+     */
+    if (p_hkmap && p_altkeymap)
+    {
+	p_altkeymap = 0;
+	p_fkmap = 0;
+# ifdef FEAT_ARABIC
+	curwin->w_p_arab = FALSE;
+# endif
+	(void)init_chartab();
+    }
+
+    /*
+     * If fkmap set, reset Hebrew keymapping.
+     */
+    if (p_fkmap && !p_altkeymap)
+    {
+	p_altkeymap = 1;
+	p_hkmap = 0;
+# ifdef FEAT_ARABIC
+	curwin->w_p_arab = FALSE;
+# endif
+	(void)init_chartab();
+    }
+#endif
+
+#ifdef FEAT_ARABIC
+    if ((int *)varp == &curwin->w_p_arab)
+    {
+	if (curwin->w_p_arab)
+	{
+	    /*
+	     * 'arabic' is set, handle various sub-settings.
+	     */
+	    if (!p_tbidi)
+	    {
+		/* set rightleft mode */
+		if (!curwin->w_p_rl)
+		{
+		    curwin->w_p_rl = TRUE;
+		    changed_window_setting();
+		}
+
+		/* Enable Arabic shaping (major part of what Arabic requires) */
+		if (!p_arshape)
+		{
+		    p_arshape = TRUE;
+		    redraw_later_clear();
+		}
+	    }
+
+	    /* Arabic requires a utf-8 encoding, inform the user if its not
+	     * set. */
+	    if (STRCMP(p_enc, "utf-8") != 0)
+		MSG_ATTR(_("W17: Arabic requires UTF-8, do ':set encoding=utf-8'"),
+			hl_attr(HLF_W));
+
+# ifdef FEAT_MBYTE
+	    /* set 'delcombine' */
+	    p_deco = TRUE;
+# endif
+
+# ifdef FEAT_KEYMAP
+	    /* Force-set the necessary keymap for arabic */
+	    set_option_value((char_u *)"keymap", 0L, (char_u *)"arabic",
+								   OPT_LOCAL);
+# endif
+# ifdef FEAT_FKMAP
+	    p_altkeymap = 0;
+	    p_hkmap = 0;
+	    p_fkmap = 0;
+	    (void)init_chartab();
+# endif
+	}
+	else
+	{
+	    /*
+	     * 'arabic' is reset, handle various sub-settings.
+	     */
+	    if (!p_tbidi)
+	    {
+		/* reset rightleft mode */
+		if (curwin->w_p_rl)
+		{
+		    curwin->w_p_rl = FALSE;
+		    changed_window_setting();
+		}
+
+		/* 'arabicshape' isn't reset, it is a global option and
+		 * another window may still need it "on". */
+	    }
+
+	    /* 'delcombine' isn't reset, it is a global option and another
+	     * window may still want it "on". */
+
+# ifdef FEAT_KEYMAP
+	    /* Revert to the default keymap */
+	    curbuf->b_p_iminsert = B_IMODE_NONE;
+	    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
+# endif
+	}
+    }
+#endif
+
+    /*
+     * End of handling side effects for bool options.
+     */
+
+    options[opt_idx].flags |= P_WAS_SET;
+
+    comp_col();			    /* in case 'ruler' or 'showcmd' changed */
+    if (curwin->w_curswant != MAXCOL)
+	curwin->w_set_curswant = TRUE;  /* in case 'list' changed */
+    check_redraw(options[opt_idx].flags);
+
+    return NULL;
+}
+
+/*
+ * Set the value of a number option, and take care of side effects.
+ * Returns NULL for success, or an error message for an error.
+ */
+    static char_u *
+set_num_option(opt_idx, varp, value, errbuf, opt_flags)
+    int		opt_idx;		/* index in options[] table */
+    char_u	*varp;			/* pointer to the option variable */
+    long	value;			/* new value */
+    char_u	*errbuf;		/* buffer for error messages */
+    int		opt_flags;		/* OPT_LOCAL, OPT_GLOBAL and
+					   OPT_MODELINE */
+{
+    char_u	*errmsg = NULL;
+    long	old_value = *(long *)varp;
+    long	old_Rows = Rows;	/* remember old Rows */
+    long	old_Columns = Columns;	/* remember old Columns */
+    long	*pp = (long *)varp;
+
+#ifdef FEAT_GUI
+    need_mouse_correct = TRUE;
+#endif
+
+    *pp = value;
+#ifdef FEAT_EVAL
+    /* Remember where the option was set. */
+    options[opt_idx].scriptID = current_SID;
+#endif
+
+    if (curbuf->b_p_sw <= 0)
+    {
+	errmsg = e_positive;
+	curbuf->b_p_sw = curbuf->b_p_ts;
+    }
+
+    /*
+     * Number options that need some action when changed
+     */
+#ifdef FEAT_WINDOWS
+    if (pp == &p_wh || pp == &p_hh)
+    {
+	if (p_wh < 1)
+	{
+	    errmsg = e_positive;
+	    p_wh = 1;
+	}
+	if (p_wmh > p_wh)
+	{
+	    errmsg = e_winheight;
+	    p_wh = p_wmh;
+	}
+	if (p_hh < 0)
+	{
+	    errmsg = e_positive;
+	    p_hh = 0;
+	}
+
+	/* Change window height NOW */
+	if (lastwin != firstwin)
+	{
+	    if (pp == &p_wh && curwin->w_height < p_wh)
+		win_setheight((int)p_wh);
+	    if (pp == &p_hh && curbuf->b_help && curwin->w_height < p_hh)
+		win_setheight((int)p_hh);
+	}
+    }
+
+    /* 'winminheight' */
+    else if (pp == &p_wmh)
+    {
+	if (p_wmh < 0)
+	{
+	    errmsg = e_positive;
+	    p_wmh = 0;
+	}
+	if (p_wmh > p_wh)
+	{
+	    errmsg = e_winheight;
+	    p_wmh = p_wh;
+	}
+	win_setminheight();
+    }
+
+# ifdef FEAT_VERTSPLIT
+    if (pp == &p_wiw)
+    {
+	if (p_wiw < 1)
+	{
+	    errmsg = e_positive;
+	    p_wiw = 1;
+	}
+	if (p_wmw > p_wiw)
+	{
+	    errmsg = e_winwidth;
+	    p_wiw = p_wmw;
+	}
+
+	/* Change window width NOW */
+	if (lastwin != firstwin && curwin->w_width < p_wiw)
+	    win_setwidth((int)p_wiw);
+    }
+
+    /* 'winminwidth' */
+    else if (pp == &p_wmw)
+    {
+	if (p_wmw < 0)
+	{
+	    errmsg = e_positive;
+	    p_wmw = 0;
+	}
+	if (p_wmw > p_wiw)
+	{
+	    errmsg = e_winwidth;
+	    p_wmw = p_wiw;
+	}
+	win_setminheight();
+    }
+# endif
+
+#endif
+
+#ifdef FEAT_WINDOWS
+    /* (re)set last window status line */
+    else if (pp == &p_ls)
+    {
+	last_status(FALSE);
+    }
+#endif
+
+#ifdef FEAT_GUI
+    else if (pp == &p_linespace)
+    {
+	if (gui.in_use && gui_mch_adjust_charsize() == OK)
+	    gui_set_shellsize(FALSE, FALSE);
+    }
+#endif
+
+#ifdef FEAT_FOLDING
+    /* 'foldlevel' */
+    else if (pp == &curwin->w_p_fdl)
+    {
+	if (curwin->w_p_fdl < 0)
+	    curwin->w_p_fdl = 0;
+	newFoldLevel();
+    }
+
+    /* 'foldminlevel' */
+    else if (pp == &curwin->w_p_fml)
+    {
+	foldUpdateAll(curwin);
+    }
+
+    /* 'foldnestmax' */
+    else if (pp == &curwin->w_p_fdn)
+    {
+	if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin))
+	    foldUpdateAll(curwin);
+    }
+
+    /* 'foldcolumn' */
+    else if (pp == &curwin->w_p_fdc)
+    {
+	if (curwin->w_p_fdc < 0)
+	{
+	    errmsg = e_positive;
+	    curwin->w_p_fdc = 0;
+	}
+	else if (curwin->w_p_fdc > 12)
+	{
+	    errmsg = e_invarg;
+	    curwin->w_p_fdc = 12;
+	}
+    }
+
+    /* 'shiftwidth' or 'tabstop' */
+    else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts)
+    {
+	if (foldmethodIsIndent(curwin))
+	    foldUpdateAll(curwin);
+    }
+#endif /* FEAT_FOLDING */
+
+    else if (pp == &curbuf->b_p_iminsert)
+    {
+	if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST)
+	{
+	    errmsg = e_invarg;
+	    curbuf->b_p_iminsert = B_IMODE_NONE;
+	}
+	p_iminsert = curbuf->b_p_iminsert;
+	if (termcap_active)	/* don't do this in the alternate screen */
+	    showmode();
+#if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
+	/* Show/unshow value of 'keymap' in status lines. */
+	status_redraw_curbuf();
+#endif
+    }
+
+    else if (pp == &curbuf->b_p_imsearch)
+    {
+	if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST)
+	{
+	    errmsg = e_invarg;
+	    curbuf->b_p_imsearch = B_IMODE_NONE;
+	}
+	p_imsearch = curbuf->b_p_imsearch;
+    }
+
+#ifdef FEAT_TITLE
+    /* if 'titlelen' has changed, redraw the title */
+    else if (pp == &p_titlelen)
+    {
+	if (p_titlelen < 0)
+	{
+	    errmsg = e_positive;
+	    p_titlelen = 85;
+	}
+	if (starting != NO_SCREEN && old_value != p_titlelen)
+	    need_maketitle = TRUE;
+    }
+#endif
+
+    /* if p_ch changed value, change the command line height */
+    else if (pp == &p_ch)
+    {
+	if (p_ch < 1)
+	{
+	    errmsg = e_positive;
+	    p_ch = 1;
+	}
+
+	/* Only compute the new window layout when startup has been
+	 * completed. Otherwise the frame sizes may be wrong. */
+	if (p_ch != old_value && full_screen
+#ifdef FEAT_GUI
+		&& !gui.starting
+#endif
+	   )
+	    command_height(old_value);
+    }
+
+    /* when 'updatecount' changes from zero to non-zero, open swap files */
+    else if (pp == &p_uc)
+    {
+	if (p_uc < 0)
+	{
+	    errmsg = e_positive;
+	    p_uc = 100;
+	}
+	if (p_uc && !old_value)
+	    ml_open_files();
+    }
+
+    /* sync undo before 'undolevels' changes */
+    else if (pp == &p_ul)
+    {
+	/* use the old value, otherwise u_sync() may not work properly */
+	p_ul = old_value;
+	u_sync();
+	p_ul = value;
+    }
+
+    /*
+     * Check the bounds for numeric options here
+     */
+    if (Rows < min_rows() && full_screen)
+    {
+	if (errbuf != NULL)
+	{
+	    sprintf((char *)errbuf, _("E593: Need at least %d lines"),
+								  min_rows());
+	    errmsg = errbuf;
+	}
+	Rows = min_rows();
+    }
+    if (Columns < MIN_COLUMNS && full_screen)
+    {
+	if (errbuf != NULL)
+	{
+	    sprintf((char *)errbuf, _("E594: Need at least %d columns"),
+								 MIN_COLUMNS);
+	    errmsg = errbuf;
+	}
+	Columns = MIN_COLUMNS;
+    }
+
+#ifdef DJGPP
+    /* avoid a crash by checking for a too large value of 'columns' */
+    if (old_Columns != Columns && full_screen && term_console)
+	mch_check_columns();
+#endif
+
+    /*
+     * If the screen (shell) height has been changed, assume it is the
+     * physical screenheight.
+     */
+    if (old_Rows != Rows || old_Columns != Columns)
+    {
+	/* Changing the screen size is not allowed while updating the screen. */
+	if (updating_screen)
+	    *pp = old_value;
+	else if (full_screen
+#ifdef FEAT_GUI
+		&& !gui.starting
+#endif
+	    )
+	    set_shellsize((int)Columns, (int)Rows, TRUE);
+	else
+	{
+	    /* Postpone the resizing; check the size and cmdline position for
+	     * messages. */
+	    check_shellsize();
+	    if (cmdline_row > Rows - p_ch && Rows > p_ch)
+		cmdline_row = Rows - p_ch;
+	}
+    }
+
+    if (curbuf->b_p_sts < 0)
+    {
+	errmsg = e_positive;
+	curbuf->b_p_sts = 0;
+    }
+    if (curbuf->b_p_ts <= 0)
+    {
+	errmsg = e_positive;
+	curbuf->b_p_ts = 8;
+    }
+    if (curbuf->b_p_tw < 0)
+    {
+	errmsg = e_positive;
+	curbuf->b_p_tw = 0;
+    }
+    if (p_tm < 0)
+    {
+	errmsg = e_positive;
+	p_tm = 0;
+    }
+    if ((curwin->w_p_scr <= 0
+		|| (curwin->w_p_scr > curwin->w_height
+		    && curwin->w_height > 0))
+	    && full_screen)
+    {
+	if (pp == &(curwin->w_p_scr))
+	{
+	    if (curwin->w_p_scr != 0)
+		errmsg = e_scroll;
+	    win_comp_scroll(curwin);
+	}
+	/* If 'scroll' became invalid because of a side effect silently adjust
+	 * it. */
+	else if (curwin->w_p_scr <= 0)
+	    curwin->w_p_scr = 1;
+	else /* curwin->w_p_scr > curwin->w_height */
+	    curwin->w_p_scr = curwin->w_height;
+    }
+    if (p_report < 0)
+    {
+	errmsg = e_positive;
+	p_report = 1;
+    }
+    if ((p_sj < 0 || p_sj >= Rows) && full_screen)
+    {
+	if (Rows != old_Rows)	/* Rows changed, just adjust p_sj */
+	    p_sj = Rows / 2;
+	else
+	{
+	    errmsg = e_scroll;
+	    p_sj = 1;
+	}
+    }
+    if (p_so < 0 && full_screen)
+    {
+	errmsg = e_scroll;
+	p_so = 0;
+    }
+    if (p_siso < 0 && full_screen)
+    {
+	errmsg = e_positive;
+	p_siso = 0;
+    }
+#ifdef FEAT_CMDWIN
+    if (p_cwh < 1)
+    {
+	errmsg = e_positive;
+	p_cwh = 1;
+    }
+#endif
+    if (p_ut < 0)
+    {
+	errmsg = e_positive;
+	p_ut = 2000;
+    }
+    if (p_ss < 0)
+    {
+	errmsg = e_positive;
+	p_ss = 0;
+    }
+
+    /* May set global value for local option. */
+    if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
+	*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = *pp;
+
+    options[opt_idx].flags |= P_WAS_SET;
+
+    comp_col();			    /* in case 'columns' or 'ls' changed */
+    if (curwin->w_curswant != MAXCOL)
+	curwin->w_set_curswant = TRUE;  /* in case 'tabstop' changed */
+    check_redraw(options[opt_idx].flags);
+
+    return errmsg;
+}
+
+/*
+ * Called after an option changed: check if something needs to be redrawn.
+ */
+    static void
+check_redraw(flags)
+    long_u	flags;
+{
+    /* Careful: P_RCLR and P_RALL are a combination of other P_ flags */
+    int		clear = (flags & P_RCLR) == P_RCLR;
+    int		all = ((flags & P_RALL) == P_RALL || clear);
+
+#ifdef FEAT_WINDOWS
+    if ((flags & P_RSTAT) || all)	/* mark all status lines dirty */
+	status_redraw_all();
+#endif
+
+    if ((flags & P_RBUF) || (flags & P_RWIN) || all)
+	changed_window_setting();
+    if (flags & P_RBUF)
+	redraw_curbuf_later(NOT_VALID);
+    if (clear)
+	redraw_all_later(CLEAR);
+    else if (all)
+	redraw_all_later(NOT_VALID);
+}
+
+/*
+ * Find index for option 'arg'.
+ * Return -1 if not found.
+ */
+    static int
+findoption(arg)
+    char_u *arg;
+{
+    int		    opt_idx;
+    char	    *s, *p;
+    static short    quick_tab[27] = {0, 0};	/* quick access table */
+    int		    is_term_opt;
+
+    /*
+     * For first call: Initialize the quick-access table.
+     * It contains the index for the first option that starts with a certain
+     * letter.  There are 26 letters, plus the first "t_" option.
+     */
+    if (quick_tab[1] == 0)
+    {
+	p = options[0].fullname;
+	for (opt_idx = 1; (s = options[opt_idx].fullname) != NULL; opt_idx++)
+	{
+	    if (s[0] != p[0])
+	    {
+		if (s[0] == 't' && s[1] == '_')
+		    quick_tab[26] = opt_idx;
+		else
+		    quick_tab[CharOrdLow(s[0])] = opt_idx;
+	    }
+	    p = s;
+	}
+    }
+
+    /*
+     * Check for name starting with an illegal character.
+     */
+#ifdef EBCDIC
+    if (!islower(arg[0]))
+#else
+    if (arg[0] < 'a' || arg[0] > 'z')
+#endif
+	return -1;
+
+    is_term_opt = (arg[0] == 't' && arg[1] == '_');
+    if (is_term_opt)
+	opt_idx = quick_tab[26];
+    else
+	opt_idx = quick_tab[CharOrdLow(arg[0])];
+    for ( ; (s = options[opt_idx].fullname) != NULL; opt_idx++)
+    {
+	if (STRCMP(arg, s) == 0)		    /* match full name */
+	    break;
+    }
+    if (s == NULL && !is_term_opt)
+    {
+	opt_idx = quick_tab[CharOrdLow(arg[0])];
+	for ( ; options[opt_idx].fullname != NULL; opt_idx++)
+	{
+	    s = options[opt_idx].shortname;
+	    if (s != NULL && STRCMP(arg, s) == 0)   /* match short name */
+		break;
+	    s = NULL;
+	}
+    }
+    if (s == NULL)
+	opt_idx = -1;
+    return opt_idx;
+}
+
+#if defined(FEAT_EVAL) || defined(FEAT_TCL)
+/*
+ * Get the value for an option.
+ *
+ * Returns:
+ * Number or Toggle option: 1, *numval gets value.
+ *	     String option: 0, *stringval gets allocated string.
+ * Hidden Number or Toggle option: -1.
+ *	     hidden String option: -2.
+ *		   unknown option: -3.
+ */
+    int
+get_option_value(name, numval, stringval, opt_flags)
+    char_u	*name;
+    long	*numval;
+    char_u	**stringval;	    /* NULL when only checking existance */
+    int		opt_flags;
+{
+    int		opt_idx;
+    char_u	*varp;
+
+    opt_idx = findoption(name);
+    if (opt_idx < 0)		    /* unknown option */
+	return -3;
+
+    varp = get_varp_scope(&(options[opt_idx]), opt_flags);
+
+    if (options[opt_idx].flags & P_STRING)
+    {
+	if (varp == NULL)		    /* hidden option */
+	    return -2;
+	if (stringval != NULL)
+	{
+#ifdef FEAT_CRYPT
+	    /* never return the value of the crypt key */
+	    if ((char_u **)varp == &curbuf->b_p_key)
+		*stringval = vim_strsave((char_u *)"*****");
+	    else
+#endif
+		*stringval = vim_strsave(*(char_u **)(varp));
+	}
+	return 0;
+    }
+
+    if (varp == NULL)		    /* hidden option */
+	return -1;
+    if (options[opt_idx].flags & P_NUM)
+	*numval = *(long *)varp;
+    else
+    {
+	/* Special case: 'modified' is b_changed, but we also want to consider
+	 * it set when 'ff' or 'fenc' changed. */
+	if ((int *)varp == &curbuf->b_changed)
+	    *numval = curbufIsChanged();
+	else
+	    *numval = *(int *)varp;
+    }
+    return 1;
+}
+#endif
+
+/*
+ * Set the value of option "name".
+ * Use "string" for string options, use "number" for other options.
+ */
+    void
+set_option_value(name, number, string, opt_flags)
+    char_u	*name;
+    long	number;
+    char_u	*string;
+    int		opt_flags;	/* OPT_LOCAL or 0 (both) */
+{
+    int		opt_idx;
+    char_u	*varp;
+    int		flags;
+
+    opt_idx = findoption(name);
+    if (opt_idx == -1)
+	EMSG2(_("E355: Unknown option: %s"), name);
+    else
+    {
+	flags = options[opt_idx].flags;
+#ifdef HAVE_SANDBOX
+	/* Disallow changing some options in the sandbox */
+	if (sandbox > 0 && (flags & P_SECURE))
+	    EMSG(_(e_sandbox));
+	else
+#endif
+	  if (flags & P_STRING)
+	    set_string_option(opt_idx, string, opt_flags);
+	else
+	{
+	    varp = get_varp(&options[opt_idx]);
+	    if (varp != NULL)	/* hidden option is not changed */
+	    {
+		if (flags & P_NUM)
+		    (void)set_num_option(opt_idx, varp, number, NULL, opt_flags);
+		else
+		    (void)set_bool_option(opt_idx, varp, (int)number, opt_flags);
+	    }
+	}
+    }
+}
+
+/*
+ * Get the terminal code for a terminal option.
+ * Returns NULL when not found.
+ */
+    char_u *
+get_term_code(tname)
+    char_u	*tname;
+{
+    int	    opt_idx;
+    char_u  *varp;
+
+    if (tname[0] != 't' || tname[1] != '_' ||
+	    tname[2] == NUL || tname[3] == NUL)
+	return NULL;
+    if ((opt_idx = findoption(tname)) >= 0)
+    {
+	varp = get_varp(&(options[opt_idx]));
+	if (varp != NULL)
+	    varp = *(char_u **)(varp);
+	return varp;
+    }
+    return find_termcode(tname + 2);
+}
+
+    char_u *
+get_highlight_default()
+{
+    int i;
+
+    i = findoption((char_u *)"hl");
+    if (i >= 0)
+	return options[i].def_val[VI_DEFAULT];
+    return (char_u *)NULL;
+}
+
+/*
+ * Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number.
+ */
+    static int
+find_key_option(arg)
+    char_u *arg;
+{
+    int		key;
+    int		modifiers;
+
+    /*
+     * Don't use get_special_key_code() for t_xx, we don't want it to call
+     * add_termcap_entry().
+     */
+    if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3])
+	key = TERMCAP2KEY(arg[2], arg[3]);
+    else
+    {
+	--arg;			    /* put arg at the '<' */
+	modifiers = 0;
+	key = find_special_key(&arg, &modifiers, TRUE);
+	if (modifiers)		    /* can't handle modifiers here */
+	    key = 0;
+    }
+    return key;
+}
+
+/*
+ * if 'all' == 0: show changed options
+ * if 'all' == 1: show all normal options
+ * if 'all' == 2: show all terminal options
+ */
+    static void
+showoptions(all, opt_flags)
+    int		all;
+    int		opt_flags;	/* OPT_LOCAL and/or OPT_GLOBAL */
+{
+    struct vimoption	*p;
+    int			col;
+    int			isterm;
+    char_u		*varp;
+    struct vimoption	**items;
+    int			item_count;
+    int			run;
+    int			row, rows;
+    int			cols;
+    int			i;
+    int			len;
+
+#define INC 20
+#define GAP 3
+
+    items = (struct vimoption **)alloc((unsigned)(sizeof(struct vimoption *) *
+								PARAM_COUNT));
+    if (items == NULL)
+	return;
+
+    /* Highlight title */
+    if (all == 2)
+	MSG_PUTS_TITLE(_("\n--- Terminal codes ---"));
+    else if (opt_flags & OPT_GLOBAL)
+	MSG_PUTS_TITLE(_("\n--- Global option values ---"));
+    else if (opt_flags & OPT_LOCAL)
+	MSG_PUTS_TITLE(_("\n--- Local option values ---"));
+    else
+	MSG_PUTS_TITLE(_("\n--- Options ---"));
+
+    /*
+     * do the loop two times:
+     * 1. display the short items
+     * 2. display the long items (only strings and numbers)
+     */
+    for (run = 1; run <= 2 && !got_int; ++run)
+    {
+	/*
+	 * collect the items in items[]
+	 */
+	item_count = 0;
+	for (p = &options[0]; p->fullname != NULL; p++)
+	{
+	    varp = NULL;
+	    isterm = istermoption(p);
+	    if (opt_flags != 0)
+	    {
+		if (p->indir != PV_NONE && !isterm)
+		    varp = get_varp_scope(p, opt_flags);
+	    }
+	    else
+		varp = get_varp(p);
+	    if (varp != NULL
+		    && ((all == 2 && isterm)
+			|| (all == 1 && !isterm)
+			|| (all == 0 && !optval_default(p, varp))))
+	    {
+		if (p->flags & P_BOOL)
+		    len = 1;		/* a toggle option fits always */
+		else
+		{
+		    option_value2string(p, opt_flags);
+		    len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1;
+		}
+		if ((len <= INC - GAP && run == 1) ||
+						(len > INC - GAP && run == 2))
+		    items[item_count++] = p;
+	    }
+	}
+
+	/*
+	 * display the items
+	 */
+	if (run == 1)
+	{
+	    cols = (Columns + GAP - 3) / INC;
+	    if (cols == 0)
+		cols = 1;
+	    rows = (item_count + cols - 1) / cols;
+	}
+	else	/* run == 2 */
+	    rows = item_count;
+	for (row = 0; row < rows && !got_int; ++row)
+	{
+	    msg_putchar('\n');			/* go to next line */
+	    if (got_int)			/* 'q' typed in more */
+		break;
+	    col = 0;
+	    for (i = row; i < item_count; i += rows)
+	    {
+		msg_col = col;			/* make columns */
+		showoneopt(items[i], opt_flags);
+		col += INC;
+	    }
+	    out_flush();
+	    ui_breakcheck();
+	}
+    }
+    vim_free(items);
+}
+
+/*
+ * Return TRUE if option "p" has its default value.
+ */
+    static int
+optval_default(p, varp)
+    struct vimoption	*p;
+    char_u		*varp;
+{
+    int		dvi;
+
+    if (varp == NULL)
+	return TRUE;	    /* hidden option is always at default */
+    dvi = ((p->flags & P_VI_DEF) || p_cp) ? VI_DEFAULT : VIM_DEFAULT;
+    if (p->flags & P_NUM)
+	return (*(long *)varp == (long)p->def_val[dvi]);
+    if (p->flags & P_BOOL)
+			/* the cast to long is required for Manx C */
+	return (*(int *)varp == (int)(long)p->def_val[dvi]);
+    /* P_STRING */
+    return (STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0);
+}
+
+/*
+ * showoneopt: show the value of one option
+ * must not be called with a hidden option!
+ */
+    static void
+showoneopt(p, opt_flags)
+    struct vimoption	*p;
+    int			opt_flags;	/* OPT_LOCAL or OPT_GLOBAL */
+{
+    char_u		*varp;
+
+    varp = get_varp_scope(p, opt_flags);
+
+    /* for 'modified' we also need to check if 'ff' or 'fenc' changed. */
+    if ((p->flags & P_BOOL) && ((int *)varp == &curbuf->b_changed
+					? !curbufIsChanged() : !*(int *)varp))
+	MSG_PUTS("no");
+    else if ((p->flags & P_BOOL) && *(int *)varp < 0)
+	MSG_PUTS("--");
+    else
+	MSG_PUTS("  ");
+    MSG_PUTS(p->fullname);
+    if (!(p->flags & P_BOOL))
+    {
+	msg_putchar('=');
+	/* put value string in NameBuff */
+	option_value2string(p, opt_flags);
+	msg_outtrans(NameBuff);
+    }
+}
+
+/*
+ * Write modified options as ":set" commands to a file.
+ *
+ * There are three values for "opt_flags":
+ * OPT_GLOBAL:		   Write global option values and fresh values of
+ *			   buffer-local options (used for start of a session
+ *			   file).
+ * OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for
+ *			   curwin (used for a vimrc file).
+ * OPT_LOCAL:		   Write buffer-local option values for curbuf, fresh
+ *			   and local values for window-local options of
+ *			   curwin.  Local values are also written when at the
+ *			   default value, because a modeline or autocommand
+ *			   may have set them when doing ":edit file" and the
+ *			   user has set them back at the default or fresh
+ *			   value.
+ *			   When "local_only" is TRUE, don't write fresh
+ *			   values, only local values (for ":mkview").
+ * (fresh value = value used for a new buffer or window for a local option).
+ *
+ * Return FAIL on error, OK otherwise.
+ */
+    int
+makeset(fd, opt_flags, local_only)
+    FILE	*fd;
+    int		opt_flags;
+    int		local_only;
+{
+    struct vimoption	*p;
+    char_u		*varp;			/* currently used value */
+    char_u		*varp_fresh;		/* local value */
+    char_u		*varp_local = NULL;	/* fresh value */
+    char		*cmd;
+    int			round;
+
+    /*
+     * The options that don't have a default (terminal name, columns, lines)
+     * are never written.  Terminal options are also not written.
+     */
+    for (p = &options[0]; !istermoption(p); p++)
+	if (!(p->flags & P_NO_MKRC) && !istermoption(p))
+	{
+	    /* skip global option when only doing locals */
+	    if (p->indir == PV_NONE && !(opt_flags & OPT_GLOBAL))
+		continue;
+
+	    /* Do not store options like 'bufhidden' and 'syntax' in a vimrc
+	     * file, they are always buffer-specific. */
+	    if ((opt_flags & OPT_GLOBAL) && (p->flags & P_NOGLOB))
+		continue;
+
+	    /* Global values are only written when not at the default value. */
+	    varp = get_varp_scope(p, opt_flags);
+	    if ((opt_flags & OPT_GLOBAL) && optval_default(p, varp))
+		continue;
+
+	    round = 2;
+	    if (p->indir != PV_NONE)
+	    {
+		if (p->var == VAR_WIN)
+		{
+		    /* skip window-local option when only doing globals */
+		    if (!(opt_flags & OPT_LOCAL))
+			continue;
+		    /* When fresh value of window-local option is not at the
+		     * default, need to write it too. */
+		    if (!(opt_flags & OPT_GLOBAL) && !local_only)
+		    {
+			varp_fresh = get_varp_scope(p, OPT_GLOBAL);
+			if (!optval_default(p, varp_fresh))
+			{
+			    round = 1;
+			    varp_local = varp;
+			    varp = varp_fresh;
+			}
+		    }
+		}
+	    }
+
+	    /* Round 1: fresh value for window-local options.
+	     * Round 2: other values */
+	    for ( ; round <= 2; varp = varp_local, ++round)
+	    {
+		if (round == 1 || (opt_flags & OPT_GLOBAL))
+		    cmd = "set";
+		else
+		    cmd = "setlocal";
+
+		if (p->flags & P_BOOL)
+		{
+		    if (put_setbool(fd, cmd, p->fullname, *(int *)varp) == FAIL)
+			return FAIL;
+		}
+		else if (p->flags & P_NUM)
+		{
+		    if (put_setnum(fd, cmd, p->fullname, (long *)varp) == FAIL)
+			return FAIL;
+		}
+		else    /* P_STRING */
+		{
+		    /* Don't set 'syntax' and 'filetype' again if the value is
+		     * already right, avoids reloading the syntax file. */
+		    if (p->indir == PV_SYN || p->indir == PV_FT)
+		    {
+			if (fprintf(fd, "if &%s != '%s'", p->fullname,
+						       *(char_u **)(varp)) < 0
+				|| put_eol(fd) < 0)
+			    return FAIL;
+		    }
+		    if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
+					  (p->flags & P_EXPAND) != 0) == FAIL)
+			return FAIL;
+		    if (p->indir == PV_SYN || p->indir == PV_FT)
+		    {
+			if (put_line(fd, "endif") == FAIL)
+			    return FAIL;
+		    }
+		}
+	    }
+	}
+    return OK;
+}
+
+#if defined(FEAT_FOLDING) || defined(PROTO)
+/*
+ * Generate set commands for the local fold options only.  Used when
+ * 'sessionoptions' or 'viewoptions' contains "folds" but not "options".
+ */
+    int
+makefoldset(fd)
+    FILE	*fd;
+{
+    if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, FALSE) == FAIL
+# ifdef FEAT_EVAL
+	    || put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, FALSE)
+								       == FAIL
+# endif
+	    || put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, FALSE)
+								       == FAIL
+	    || put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, FALSE)
+								       == FAIL
+	    || put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL
+	    || put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL
+	    || put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL
+	    || put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL
+	    )
+	return FAIL;
+
+    return OK;
+}
+#endif
+
+    static int
+put_setstring(fd, cmd, name, valuep, expand)
+    FILE	*fd;
+    char	*cmd;
+    char	*name;
+    char_u	**valuep;
+    int		expand;
+{
+    char_u	*s;
+    char_u	buf[MAXPATHL];
+
+    if (fprintf(fd, "%s %s=", cmd, name) < 0)
+	return FAIL;
+    if (*valuep != NULL)
+    {
+	/* Output 'pastetoggle' as key names.  For other
+	 * options some characters have to be escaped with
+	 * CTRL-V or backslash */
+	if (valuep == &p_pt)
+	{
+	    s = *valuep;
+	    while (*s != NUL)
+		if (fputs((char *)str2special(&s, FALSE), fd) < 0)
+		    return FAIL;
+	}
+	else if (expand)
+	{
+	    home_replace(NULL, *valuep, buf, MAXPATHL, FALSE);
+	    if (put_escstr(fd, buf, 2) == FAIL)
+		return FAIL;
+	}
+	else if (put_escstr(fd, *valuep, 2) == FAIL)
+	    return FAIL;
+    }
+    if (put_eol(fd) < 0)
+	return FAIL;
+    return OK;
+}
+
+    static int
+put_setnum(fd, cmd, name, valuep)
+    FILE	*fd;
+    char	*cmd;
+    char	*name;
+    long	*valuep;
+{
+    long	wc;
+
+    if (fprintf(fd, "%s %s=", cmd, name) < 0)
+	return FAIL;
+    if (wc_use_keyname((char_u *)valuep, &wc))
+    {
+	/* print 'wildchar' and 'wildcharm' as a key name */
+	if (fputs((char *)get_special_key_name((int)wc, 0), fd) < 0)
+	    return FAIL;
+    }
+    else if (fprintf(fd, "%ld", *valuep) < 0)
+	return FAIL;
+    if (put_eol(fd) < 0)
+	return FAIL;
+    return OK;
+}
+
+    static int
+put_setbool(fd, cmd, name, value)
+    FILE	*fd;
+    char	*cmd;
+    char	*name;
+    int		value;
+{
+    if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
+	    || put_eol(fd) < 0)
+	return FAIL;
+    return OK;
+}
+
+/*
+ * Clear all the terminal options.
+ * If the option has been allocated, free the memory.
+ * Terminal options are never hidden or indirect.
+ */
+    void
+clear_termoptions()
+{
+    struct vimoption   *p;
+
+    /*
+     * Reset a few things before clearing the old options. This may cause
+     * outputting a few things that the terminal doesn't understand, but the
+     * screen will be cleared later, so this is OK.
+     */
+#ifdef FEAT_MOUSE_TTY
+    mch_setmouse(FALSE);	    /* switch mouse off */
+#endif
+#ifdef FEAT_TITLE
+    mch_restore_title(3);	    /* restore window titles */
+#endif
+#if defined(FEAT_XCLIPBOARD) && defined(FEAT_GUI)
+    /* When starting the GUI close the display opened for the clipboard.
+     * After restoring the title, because that will need the display. */
+    if (gui.starting)
+	clear_xterm_clip();
+#endif
+#ifdef WIN3264
+    /*
+     * Check if this is allowed now.
+     */
+    if (can_end_termcap_mode(FALSE) == TRUE)
+#endif
+	stoptermcap();			/* stop termcap mode */
+
+    for (p = &options[0]; p->fullname != NULL; p++)
+	if (istermoption(p))
+	{
+	    if (p->flags & P_ALLOCED)
+		free_string_option(*(char_u **)(p->var));
+	    if (p->flags & P_DEF_ALLOCED)
+		free_string_option(p->def_val[VI_DEFAULT]);
+	    *(char_u **)(p->var) = empty_option;
+	    p->def_val[VI_DEFAULT] = empty_option;
+	    p->flags &= ~(P_ALLOCED|P_DEF_ALLOCED);
+	}
+    clear_termcodes();
+}
+
+/*
+ * Set the terminal option defaults to the current value.
+ * Used after setting the terminal name.
+ */
+    void
+set_term_defaults()
+{
+    struct vimoption   *p;
+
+    for (p = &options[0]; p->fullname != NULL; p++)
+    {
+	if (istermoption(p) && p->def_val[VI_DEFAULT] != *(char_u **)(p->var))
+	{
+	    if (p->flags & P_DEF_ALLOCED)
+	    {
+		free_string_option(p->def_val[VI_DEFAULT]);
+		p->flags &= ~P_DEF_ALLOCED;
+	    }
+	    p->def_val[VI_DEFAULT] = *(char_u **)(p->var);
+	    if (p->flags & P_ALLOCED)
+	    {
+		p->flags |= P_DEF_ALLOCED;
+		p->flags &= ~P_ALLOCED;	 /* don't free the value now */
+	    }
+	}
+    }
+}
+
+/*
+ * return TRUE if 'p' starts with 't_'
+ */
+    static int
+istermoption(p)
+    struct vimoption *p;
+{
+    return (p->fullname[0] == 't' && p->fullname[1] == '_');
+}
+
+/*
+ * Compute columns for ruler and shown command. 'sc_col' is also used to
+ * decide what the maximum length of a message on the status line can be.
+ * If there is a status line for the last window, 'sc_col' is independent
+ * of 'ru_col'.
+ */
+
+#define COL_RULER 17	    /* columns needed by standard ruler */
+
+    void
+comp_col()
+{
+#if defined(FEAT_CMDL_INFO) && defined(FEAT_WINDOWS)
+    int last_has_status = (p_ls == 2 || (p_ls == 1 && firstwin != lastwin));
+
+    sc_col = 0;
+    ru_col = 0;
+    if (p_ru)
+    {
+#ifdef FEAT_STL_OPT
+	ru_col = (ru_wid ? ru_wid : COL_RULER) + 1;
+#else
+	ru_col = COL_RULER + 1;
+#endif
+	/* no last status line, adjust sc_col */
+	if (!last_has_status)
+	    sc_col = ru_col;
+    }
+    if (p_sc)
+    {
+	sc_col += SHOWCMD_COLS;
+	if (!p_ru || last_has_status)	    /* no need for separating space */
+	    ++sc_col;
+    }
+    sc_col = Columns - sc_col;
+    ru_col = Columns - ru_col;
+    if (sc_col <= 0)		/* screen too narrow, will become a mess */
+	sc_col = 1;
+    if (ru_col <= 0)
+	ru_col = 1;
+#else
+    sc_col = Columns;
+    ru_col = Columns;
+#endif
+}
+
+/*
+ * Get pointer to option variable, depending on local or global scope.
+ */
+    static char_u *
+get_varp_scope(p, opt_flags)
+    struct vimoption	*p;
+    int			opt_flags;
+{
+    if ((opt_flags & OPT_GLOBAL) && p->indir != PV_NONE)
+    {
+	if (p->var == VAR_WIN)
+	    return (char_u *)GLOBAL_WO(get_varp(p));
+	return p->var;
+    }
+    if ((opt_flags & OPT_LOCAL) && (int)p->indir >= PV_BOTH)
+    {
+	switch ((int)p->indir)
+	{
+#ifdef FEAT_QUICKFIX
+	    case OPT_BOTH(PV_GP):   return (char_u *)&(curbuf->b_p_gp);
+	    case OPT_BOTH(PV_MP):   return (char_u *)&(curbuf->b_p_mp);
+	    case OPT_BOTH(PV_EFM):  return (char_u *)&(curbuf->b_p_efm);
+#endif
+	    case OPT_BOTH(PV_EP):   return (char_u *)&(curbuf->b_p_ep);
+	    case OPT_BOTH(PV_KP):   return (char_u *)&(curbuf->b_p_kp);
+	    case OPT_BOTH(PV_PATH): return (char_u *)&(curbuf->b_p_path);
+	    case OPT_BOTH(PV_AR):   return (char_u *)&(curbuf->b_p_ar);
+	    case OPT_BOTH(PV_TAGS): return (char_u *)&(curbuf->b_p_tags);
+#ifdef FEAT_FIND_ID
+	    case OPT_BOTH(PV_DEF):  return (char_u *)&(curbuf->b_p_def);
+	    case OPT_BOTH(PV_INC):  return (char_u *)&(curbuf->b_p_inc);
+#endif
+#ifdef FEAT_INS_EXPAND
+	    case OPT_BOTH(PV_DICT): return (char_u *)&(curbuf->b_p_dict);
+	    case OPT_BOTH(PV_TSR):  return (char_u *)&(curbuf->b_p_tsr);
+#endif
+	}
+	return NULL; /* "cannot happen" */
+    }
+    return get_varp(p);
+}
+
+/*
+ * Get pointer to option variable.
+ */
+    static char_u *
+get_varp(p)
+    struct vimoption	*p;
+{
+    /* hidden option, always return NULL */
+    if (p->var == NULL)
+	return NULL;
+
+    switch ((int)p->indir)
+    {
+	case PV_NONE:	return p->var;
+
+	/* global option with local value: use local value if it's been set */
+	case OPT_BOTH(PV_EP):	return *curbuf->b_p_ep != NUL
+				    ? (char_u *)&curbuf->b_p_ep : p->var;
+	case OPT_BOTH(PV_KP):	return *curbuf->b_p_kp != NUL
+				    ? (char_u *)&curbuf->b_p_kp : p->var;
+	case OPT_BOTH(PV_PATH):	return *curbuf->b_p_path != NUL
+				    ? (char_u *)&(curbuf->b_p_path) : p->var;
+	case OPT_BOTH(PV_AR):	return curbuf->b_p_ar >= 0
+				    ? (char_u *)&(curbuf->b_p_ar) : p->var;
+	case OPT_BOTH(PV_TAGS):	return *curbuf->b_p_tags != NUL
+				    ? (char_u *)&(curbuf->b_p_tags) : p->var;
+#ifdef FEAT_FIND_ID
+	case OPT_BOTH(PV_DEF):	return *curbuf->b_p_def != NUL
+				    ? (char_u *)&(curbuf->b_p_def) : p->var;
+	case OPT_BOTH(PV_INC):	return *curbuf->b_p_inc != NUL
+				    ? (char_u *)&(curbuf->b_p_inc) : p->var;
+#endif
+#ifdef FEAT_INS_EXPAND
+	case OPT_BOTH(PV_DICT):	return *curbuf->b_p_dict != NUL
+				    ? (char_u *)&(curbuf->b_p_dict) : p->var;
+	case OPT_BOTH(PV_TSR):	return *curbuf->b_p_tsr != NUL
+				    ? (char_u *)&(curbuf->b_p_tsr) : p->var;
+#endif
+#ifdef FEAT_QUICKFIX
+	case OPT_BOTH(PV_GP):	return *curbuf->b_p_gp != NUL
+				    ? (char_u *)&(curbuf->b_p_gp) : p->var;
+	case OPT_BOTH(PV_MP):	return *curbuf->b_p_mp != NUL
+				    ? (char_u *)&(curbuf->b_p_mp) : p->var;
+	case OPT_BOTH(PV_EFM):	return *curbuf->b_p_efm != NUL
+				    ? (char_u *)&(curbuf->b_p_efm) : p->var;
+#endif
+
+#ifdef FEAT_ARABIC
+	case PV_ARAB:	return (char_u *)&(curwin->w_p_arab);
+#endif
+	case PV_LIST:	return (char_u *)&(curwin->w_p_list);
+#ifdef FEAT_DIFF
+	case PV_DIFF:	return (char_u *)&(curwin->w_p_diff);
+#endif
+#ifdef FEAT_FOLDING
+	case PV_FDC:	return (char_u *)&(curwin->w_p_fdc);
+	case PV_FEN:	return (char_u *)&(curwin->w_p_fen);
+	case PV_FDI:	return (char_u *)&(curwin->w_p_fdi);
+	case PV_FDL:	return (char_u *)&(curwin->w_p_fdl);
+	case PV_FDM:	return (char_u *)&(curwin->w_p_fdm);
+	case PV_FML:	return (char_u *)&(curwin->w_p_fml);
+	case PV_FDN:	return (char_u *)&(curwin->w_p_fdn);
+# ifdef FEAT_EVAL
+	case PV_FDE:	return (char_u *)&(curwin->w_p_fde);
+	case PV_FDT:	return (char_u *)&(curwin->w_p_fdt);
+# endif
+	case PV_FMR:	return (char_u *)&(curwin->w_p_fmr);
+#endif
+	case PV_NU:	return (char_u *)&(curwin->w_p_nu);
+#if defined(FEAT_WINDOWS)
+	case PV_WFH:	return (char_u *)&(curwin->w_p_wfh);
+#endif
+#if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
+	case PV_PVW:	return (char_u *)&(curwin->w_p_pvw);
+#endif
+#ifdef FEAT_RIGHTLEFT
+	case PV_RL:	return (char_u *)&(curwin->w_p_rl);
+	case PV_RLC:	return (char_u *)&(curwin->w_p_rlc);
+#endif
+	case PV_SCROLL:	return (char_u *)&(curwin->w_p_scr);
+	case PV_WRAP:	return (char_u *)&(curwin->w_p_wrap);
+#ifdef FEAT_LINEBREAK
+	case PV_LBR:	return (char_u *)&(curwin->w_p_lbr);
+#endif
+#ifdef FEAT_SCROLLBIND
+	case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
+#endif
+
+	case PV_AI:	return (char_u *)&(curbuf->b_p_ai);
+	case PV_BIN:	return (char_u *)&(curbuf->b_p_bin);
+#ifdef FEAT_MBYTE
+	case PV_BOMB:	return (char_u *)&(curbuf->b_p_bomb);
+#endif
+#if defined(FEAT_QUICKFIX)
+	case PV_BH:	return (char_u *)&(curbuf->b_p_bh);
+	case PV_BT:	return (char_u *)&(curbuf->b_p_bt);
+#endif
+	case PV_BL:	return (char_u *)&(curbuf->b_p_bl);
+	case PV_CI:	return (char_u *)&(curbuf->b_p_ci);
+#ifdef FEAT_CINDENT
+	case PV_CIN:	return (char_u *)&(curbuf->b_p_cin);
+	case PV_CINK:	return (char_u *)&(curbuf->b_p_cink);
+	case PV_CINO:	return (char_u *)&(curbuf->b_p_cino);
+#endif
+#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
+	case PV_CINW:	return (char_u *)&(curbuf->b_p_cinw);
+#endif
+#ifdef FEAT_COMMENTS
+	case PV_COM:	return (char_u *)&(curbuf->b_p_com);
+#endif
+#ifdef FEAT_FOLDING
+	case PV_CMS:	return (char_u *)&(curbuf->b_p_cms);
+#endif
+#ifdef FEAT_INS_EXPAND
+	case PV_CPT:	return (char_u *)&(curbuf->b_p_cpt);
+#endif
+	case PV_EOL:	return (char_u *)&(curbuf->b_p_eol);
+	case PV_ET:	return (char_u *)&(curbuf->b_p_et);
+#ifdef FEAT_MBYTE
+	case PV_FENC:	return (char_u *)&(curbuf->b_p_fenc);
+#endif
+	case PV_FF:	return (char_u *)&(curbuf->b_p_ff);
+#ifdef FEAT_AUTOCMD
+	case PV_FT:	return (char_u *)&(curbuf->b_p_ft);
+#endif
+	case PV_FO:	return (char_u *)&(curbuf->b_p_fo);
+	case PV_IMI:	return (char_u *)&(curbuf->b_p_iminsert);
+	case PV_IMS:	return (char_u *)&(curbuf->b_p_imsearch);
+	case PV_INF:	return (char_u *)&(curbuf->b_p_inf);
+	case PV_ISK:	return (char_u *)&(curbuf->b_p_isk);
+#ifdef FEAT_FIND_ID
+# ifdef FEAT_EVAL
+	case PV_INEX:	return (char_u *)&(curbuf->b_p_inex);
+# endif
+#endif
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+	case PV_INDE:	return (char_u *)&(curbuf->b_p_inde);
+	case PV_INDK:	return (char_u *)&(curbuf->b_p_indk);
+#endif
+#ifdef FEAT_CRYPT
+	case PV_KEY:	return (char_u *)&(curbuf->b_p_key);
+#endif
+#ifdef FEAT_LISP
+	case PV_LISP:	return (char_u *)&(curbuf->b_p_lisp);
+#endif
+	case PV_ML:	return (char_u *)&(curbuf->b_p_ml);
+	case PV_MPS:	return (char_u *)&(curbuf->b_p_mps);
+	case PV_MA:	return (char_u *)&(curbuf->b_p_ma);
+	case PV_MOD:	return (char_u *)&(curbuf->b_changed);
+	case PV_NF:	return (char_u *)&(curbuf->b_p_nf);
+#ifdef FEAT_OSFILETYPE
+	case PV_OFT:	return (char_u *)&(curbuf->b_p_oft);
+#endif
+	case PV_PI:	return (char_u *)&(curbuf->b_p_pi);
+	case PV_RO:	return (char_u *)&(curbuf->b_p_ro);
+#ifdef FEAT_SMARTINDENT
+	case PV_SI:	return (char_u *)&(curbuf->b_p_si);
+#endif
+#ifndef SHORT_FNAME
+	case PV_SN:	return (char_u *)&(curbuf->b_p_sn);
+#endif
+	case PV_STS:	return (char_u *)&(curbuf->b_p_sts);
+#ifdef FEAT_SEARCHPATH
+	case PV_SUA:	return (char_u *)&(curbuf->b_p_sua);
+#endif
+	case PV_SWF:	return (char_u *)&(curbuf->b_p_swf);
+#ifdef FEAT_SYN_HL
+	case PV_SYN:	return (char_u *)&(curbuf->b_p_syn);
+#endif
+	case PV_SW:	return (char_u *)&(curbuf->b_p_sw);
+	case PV_TS:	return (char_u *)&(curbuf->b_p_ts);
+	case PV_TW:	return (char_u *)&(curbuf->b_p_tw);
+	case PV_TX:	return (char_u *)&(curbuf->b_p_tx);
+	case PV_WM:	return (char_u *)&(curbuf->b_p_wm);
+#ifdef FEAT_KEYMAP
+	case PV_KMAP:	return (char_u *)&(curbuf->b_p_keymap);
+#endif
+	default:	EMSG(_("E356: get_varp ERROR"));
+    }
+    /* always return a valid pointer to avoid a crash! */
+    return (char_u *)&(curbuf->b_p_wm);
+}
+
+/*
+ * Get the value of 'equalprg', either the buffer-local one or the global one.
+ */
+    char_u *
+get_equalprg()
+{
+    if (*curbuf->b_p_ep == NUL)
+	return p_ep;
+    return curbuf->b_p_ep;
+}
+
+#if defined(FEAT_WINDOWS) || defined(PROTO)
+/*
+ * Copy options from one window to another.
+ * Used when splitting a window.
+ */
+    void
+win_copy_options(wp_from, wp_to)
+    win_T	*wp_from;
+    win_T	*wp_to;
+{
+    copy_winopt(&wp_from->w_onebuf_opt, &wp_to->w_onebuf_opt);
+    copy_winopt(&wp_from->w_allbuf_opt, &wp_to->w_allbuf_opt);
+# ifdef FEAT_RIGHTLEFT
+#  ifdef FEAT_FKMAP
+    /* Is this right? */
+    wp_to->w_farsi = wp_from->w_farsi;
+#  endif
+# endif
+}
+#endif
+
+/*
+ * Copy the options from one winopt_T to another.
+ * Doesn't free the old option values in "to", use clear_winopt() for that.
+ * The 'scroll' option is not copied, because it depends on the window height.
+ * The 'previewwindow' option is reset, there can be only one preview window.
+ */
+    void
+copy_winopt(from, to)
+    winopt_T	*from;
+    winopt_T	*to;
+{
+#ifdef FEAT_ARABIC
+    to->wo_arab = from->wo_arab;
+#endif
+    to->wo_list = from->wo_list;
+    to->wo_nu = from->wo_nu;
+#ifdef FEAT_RIGHTLEFT
+    to->wo_rl  = from->wo_rl;
+    to->wo_rlc = vim_strsave(from->wo_rlc);
+#endif
+    to->wo_wrap = from->wo_wrap;
+#ifdef FEAT_LINEBREAK
+    to->wo_lbr = from->wo_lbr;
+#endif
+#ifdef FEAT_SCROLLBIND
+    to->wo_scb = from->wo_scb;
+#endif
+#ifdef FEAT_DIFF
+    to->wo_diff = from->wo_diff;
+#endif
+#ifdef FEAT_FOLDING
+    to->wo_fdc = from->wo_fdc;
+    to->wo_fen = from->wo_fen;
+    to->wo_fdi = vim_strsave(from->wo_fdi);
+    to->wo_fml = from->wo_fml;
+    to->wo_fdl = from->wo_fdl;
+    to->wo_fdm = vim_strsave(from->wo_fdm);
+    to->wo_fdn = from->wo_fdn;
+# ifdef FEAT_EVAL
+    to->wo_fde = vim_strsave(from->wo_fde);
+    to->wo_fdt = vim_strsave(from->wo_fdt);
+# endif
+    to->wo_fmr = vim_strsave(from->wo_fmr);
+#endif
+    check_winopt(to);		/* don't want NULL pointers */
+}
+
+/*
+ * Check string options in a window for a NULL value.
+ */
+    void
+check_win_options(win)
+    win_T	*win;
+{
+    check_winopt(&win->w_onebuf_opt);
+    check_winopt(&win->w_allbuf_opt);
+}
+
+/*
+ * Check for NULL pointers in a winopt_T and replace them with empty_option.
+ */
+/*ARGSUSED*/
+    void
+check_winopt(wop)
+    winopt_T	*wop;
+{
+#ifdef FEAT_FOLDING
+    check_string_option(&wop->wo_fdi);
+    check_string_option(&wop->wo_fdm);
+# ifdef FEAT_EVAL
+    check_string_option(&wop->wo_fde);
+    check_string_option(&wop->wo_fdt);
+# endif
+    check_string_option(&wop->wo_fmr);
+#endif
+#ifdef FEAT_RIGHTLEFT
+    check_string_option(&wop->wo_rlc);
+#endif
+}
+
+/*
+ * Free the allocated memory inside a winopt_T.
+ */
+/*ARGSUSED*/
+    void
+clear_winopt(wop)
+    winopt_T	*wop;
+{
+#ifdef FEAT_FOLDING
+    clear_string_option(&wop->wo_fdi);
+    clear_string_option(&wop->wo_fdm);
+# ifdef FEAT_EVAL
+    clear_string_option(&wop->wo_fde);
+    clear_string_option(&wop->wo_fdt);
+# endif
+    clear_string_option(&wop->wo_fmr);
+#endif
+#ifdef FEAT_RIGHTLEFT
+    clear_string_option(&wop->wo_rlc);
+#endif
+}
+
+/*
+ * Copy global option values to local options for one buffer.
+ * Used when creating a new buffer and sometimes when entering a buffer.
+ * flags:
+ * BCO_ENTER	We will enter the buf buffer.
+ * BCO_ALWAYS	Always copy the options, but only set b_p_initialized when
+ *		appropriate.
+ * BCO_NOHELP	Don't copy the values to a help buffer.
+ */
+    void
+buf_copy_options(buf, flags)
+    buf_T	*buf;
+    int		flags;
+{
+    int		should_copy = TRUE;
+    char_u	*save_p_isk = NULL;	    /* init for GCC */
+    int		dont_do_help;
+    int		did_isk = FALSE;
+
+    /*
+     * Don't do anything of the buffer is invalid.
+     */
+    if (buf == NULL || !buf_valid(buf))
+	return;
+
+    /*
+     * Skip this when the option defaults have not been set yet.  Happens when
+     * main() allocates the first buffer.
+     */
+    if (p_cpo != NULL)
+    {
+	/*
+	 * Always copy when entering and 'cpo' contains 'S'.
+	 * Don't copy when already initialized.
+	 * Don't copy when 'cpo' contains 's' and not entering.
+	 * 'S'	BCO_ENTER  initialized	's'  should_copy
+	 * yes	  yes	       X	 X	TRUE
+	 * yes	  no	      yes	 X	FALSE
+	 * no	   X	      yes	 X	FALSE
+	 *  X	  no	      no	yes	FALSE
+	 *  X	  no	      no	no	TRUE
+	 * no	  yes	      no	 X	TRUE
+	 */
+	if ((vim_strchr(p_cpo, CPO_BUFOPTGLOB) == NULL || !(flags & BCO_ENTER))
+		&& (buf->b_p_initialized
+		    || (!(flags & BCO_ENTER)
+			&& vim_strchr(p_cpo, CPO_BUFOPT) != NULL)))
+	    should_copy = FALSE;
+
+	if (should_copy || (flags & BCO_ALWAYS))
+	{
+	    /* Don't copy the options specific to a help buffer when
+	     * BCO_NOHELP is given or the options were initialized already
+	     * (jumping back to a help file with CTRL-T or CTRL-O) */
+	    dont_do_help = ((flags & BCO_NOHELP) && buf->b_help)
+						       || buf->b_p_initialized;
+	    if (dont_do_help)		/* don't free b_p_isk */
+	    {
+		save_p_isk = buf->b_p_isk;
+		buf->b_p_isk = NULL;
+	    }
+	    /*
+	     * Always free the allocated strings.
+	     * If not already initialized, set 'readonly' and copy 'fileformat'.
+	     */
+	    if (!buf->b_p_initialized)
+	    {
+		free_buf_options(buf, TRUE);
+		buf->b_p_ro = FALSE;		/* don't copy readonly */
+		buf->b_p_tx = p_tx;
+#ifdef FEAT_MBYTE
+		buf->b_p_fenc = vim_strsave(p_fenc);
+#endif
+		buf->b_p_ff = vim_strsave(p_ff);
+#if defined(FEAT_QUICKFIX)
+		buf->b_p_bh = empty_option;
+		buf->b_p_bt = empty_option;
+#endif
+	    }
+	    else
+		free_buf_options(buf, FALSE);
+
+	    buf->b_p_ai = p_ai;
+	    buf->b_p_ai_nopaste = p_ai_nopaste;
+	    buf->b_p_sw = p_sw;
+	    buf->b_p_tw = p_tw;
+	    buf->b_p_tw_nopaste = p_tw_nopaste;
+	    buf->b_p_tw_nobin = p_tw_nobin;
+	    buf->b_p_wm = p_wm;
+	    buf->b_p_wm_nopaste = p_wm_nopaste;
+	    buf->b_p_wm_nobin = p_wm_nobin;
+	    buf->b_p_bin = p_bin;
+	    buf->b_p_et = p_et;
+	    buf->b_p_et_nobin = p_et_nobin;
+	    buf->b_p_ml = p_ml;
+	    buf->b_p_ml_nobin = p_ml_nobin;
+	    buf->b_p_inf = p_inf;
+	    buf->b_p_swf = p_swf;
+#ifdef FEAT_INS_EXPAND
+	    buf->b_p_cpt = vim_strsave(p_cpt);
+#endif
+	    buf->b_p_sts = p_sts;
+	    buf->b_p_sts_nopaste = p_sts_nopaste;
+#ifndef SHORT_FNAME
+	    buf->b_p_sn = p_sn;
+#endif
+#ifdef FEAT_COMMENTS
+	    buf->b_p_com = vim_strsave(p_com);
+#endif
+#ifdef FEAT_FOLDING
+	    buf->b_p_cms = vim_strsave(p_cms);
+#endif
+	    buf->b_p_fo = vim_strsave(p_fo);
+	    buf->b_p_nf = vim_strsave(p_nf);
+	    buf->b_p_mps = vim_strsave(p_mps);
+#ifdef FEAT_SMARTINDENT
+	    buf->b_p_si = p_si;
+#endif
+	    buf->b_p_ci = p_ci;
+#ifdef FEAT_CINDENT
+	    buf->b_p_cin = p_cin;
+	    buf->b_p_cink = vim_strsave(p_cink);
+	    buf->b_p_cino = vim_strsave(p_cino);
+#endif
+#ifdef FEAT_AUTOCMD
+	    /* Don't copy 'filetype', it must be detected */
+	    buf->b_p_ft = empty_option;
+#endif
+#ifdef FEAT_OSFILETYPE
+	    buf->b_p_oft = vim_strsave(p_oft);
+#endif
+	    buf->b_p_pi = p_pi;
+#if defined(FEAT_SMARTINDENT) || defined(FEAT_CINDENT)
+	    buf->b_p_cinw = vim_strsave(p_cinw);
+#endif
+#ifdef FEAT_LISP
+	    buf->b_p_lisp = p_lisp;
+#endif
+#ifdef FEAT_SYN_HL
+	    /* Don't copy 'syntax', it must be set */
+	    buf->b_p_syn = empty_option;
+#endif
+#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
+	    buf->b_p_inde = vim_strsave(p_inde);
+	    buf->b_p_indk = vim_strsave(p_indk);
+#endif
+#ifdef FEAT_CRYPT
+	    buf->b_p_key = vim_strsave(p_key);
+#endif
+#ifdef FEAT_SEARCHPATH
+	    buf->b_p_sua = vim_strsave(p_sua);
+#endif
+#ifdef FEAT_KEYMAP
+	    buf->b_p_keymap = vim_strsave(p_keymap);
+	    buf->b_kmap_state |= KEYMAP_INIT;
+#endif
+	    /* This isn't really an option, but copying the langmap and IME
+	     * state from the current buffer is better than resetting it. */
+	    buf->b_p_iminsert = p_iminsert;
+	    buf->b_p_imsearch = p_imsearch;
+
+	    /* options that are normally global but also have a local value
+	     * are not copied, start using the global value */
+	    buf->b_p_ar = -1;
+#ifdef FEAT_QUICKFIX
+	    buf->b_p_gp = empty_option;
+	    buf->b_p_mp = empty_option;
+	    buf->b_p_efm = empty_option;
+#endif
+	    buf->b_p_ep = empty_option;
+	    buf->b_p_kp = empty_option;
+	    buf->b_p_path = empty_option;
+	    buf->b_p_tags = empty_option;
+#ifdef FEAT_FIND_ID
+	    buf->b_p_def = empty_option;
+	    buf->b_p_inc = empty_option;
+# ifdef FEAT_EVAL
+	    buf->b_p_inex = vim_strsave(p_inex);
+# endif
+#endif
+#ifdef FEAT_INS_EXPAND
+	    buf->b_p_dict = empty_option;
+	    buf->b_p_tsr = empty_option;
+#endif
+
+	    /*
+	     * Don't copy the options set by ex_help(), use the saved values,
+	     * when going from a help buffer to a non-help buffer.
+	     * Don't touch these at all when BCO_NOHELP is used and going from
+	     * or to a help buffer.
+	     */
+	    if (dont_do_help)
+		buf->b_p_isk = save_p_isk;
+	    else
+	    {
+		buf->b_p_isk = vim_strsave(p_isk);
+		did_isk = TRUE;
+		buf->b_p_ts = p_ts;
+		buf->b_help = FALSE;
+#ifdef FEAT_QUICKFIX
+		if (buf->b_p_bt[0] == 'h')
+		    clear_string_option(&buf->b_p_bt);
+#endif
+		buf->b_p_ma = p_ma;
+	    }
+	}
+
+	/*
+	 * When the options should be copied (ignoring BCO_ALWAYS), set the
+	 * flag that indicates that the options have been initialized.
+	 */
+	if (should_copy)
+	    buf->b_p_initialized = TRUE;
+    }
+
+    check_buf_options(buf);	    /* make sure we don't have NULLs */
+    if (did_isk)
+	(void)buf_init_chartab(buf, FALSE);
+}
+
+/*
+ * Reset the 'modifiable' option and its default value.
+ */
+    void
+reset_modifiable()
+{
+    int		opt_idx;
+
+    curbuf->b_p_ma = FALSE;
+    p_ma = FALSE;
+    opt_idx = findoption((char_u *)"ma");
+    options[opt_idx].def_val[VI_DEFAULT] = FALSE;
+}
+
+/*
+ * Set the global value for 'iminsert' to the local value.
+ */
+    void
+set_iminsert_global()
+{
+    p_iminsert = curbuf->b_p_iminsert;
+}
+
+/*
+ * Set the global value for 'imsearch' to the local value.
+ */
+    void
+set_imsearch_global()
+{
+    p_imsearch = curbuf->b_p_imsearch;
+}
+
+#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
+static int expand_option_idx = -1;
+static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL};
+static int expand_option_flags = 0;
+
+    void
+set_context_in_set_cmd(xp, arg, opt_flags)
+    expand_T	*xp;
+    char_u	*arg;
+    int		opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
+{
+    int		nextchar;
+    long_u	flags = 0;	/* init for GCC */
+    int		opt_idx = 0;	/* init for GCC */
+    char_u	*p;
+    char_u	*s;
+    int		is_term_option = FALSE;
+    int		key;
+
+    expand_option_flags = opt_flags;
+
+    xp->xp_context = EXPAND_SETTINGS;
+    if (*arg == NUL)
+    {
+	xp->xp_pattern = arg;
+	return;
+    }
+    p = arg + STRLEN(arg) - 1;
+    if (*p == ' ' && *(p - 1) != '\\')
+    {
+	xp->xp_pattern = p + 1;
+	return;
+    }
+    while (p > arg)
+    {
+	s = p;
+	/* count number of backslashes before ' ' or ',' */
+	if (*p == ' ' || *p == ',')
+	{
+	    while (s > arg && *(s - 1) == '\\')
+		--s;
+	}
+	/* break at a space with an even number of backslashes */
+	if (*p == ' ' && ((p - s) & 1) == 0)
+	{
+	    ++p;
+	    break;
+	}
+	--p;
+    }
+    if (STRNCMP(p, "no", 2) == 0)
+    {
+	xp->xp_context = EXPAND_BOOL_SETTINGS;
+	p += 2;
+    }
+    if (STRNCMP(p, "inv", 3) == 0)
+    {
+	xp->xp_context = EXPAND_BOOL_SETTINGS;
+	p += 3;
+    }
+    xp->xp_pattern = arg = p;
+    if (*arg == '<')
+    {
+	while (*p != '>')
+	    if (*p++ == NUL)	    /* expand terminal option name */
+		return;
+	key = get_special_key_code(arg + 1);
+	if (key == 0)		    /* unknown name */
+	{
+	    xp->xp_context = EXPAND_NOTHING;
+	    return;
+	}
+	nextchar = *++p;
+	is_term_option = TRUE;
+	expand_option_name[2] = KEY2TERMCAP0(key);
+	expand_option_name[3] = KEY2TERMCAP1(key);
+    }
+    else
+    {
+	if (p[0] == 't' && p[1] == '_')
+	{
+	    p += 2;
+	    if (*p != NUL)
+		++p;
+	    if (*p == NUL)
+		return;		/* expand option name */
+	    nextchar = *++p;
+	    is_term_option = TRUE;
+	    expand_option_name[2] = p[-2];
+	    expand_option_name[3] = p[-1];
+	}
+	else
+	{
+		/* Allow * wildcard */
+	    while (ASCII_ISALNUM(*p) || *p == '_' || *p == '*')
+		p++;
+	    if (*p == NUL)
+		return;
+	    nextchar = *p;
+	    *p = NUL;
+	    opt_idx = findoption(arg);
+	    *p = nextchar;
+	    if (opt_idx == -1 || options[opt_idx].var == NULL)
+	    {
+		xp->xp_context = EXPAND_NOTHING;
+		return;
+	    }
+	    flags = options[opt_idx].flags;
+	    if (flags & P_BOOL)
+	    {
+		xp->xp_context = EXPAND_NOTHING;
+		return;
+	    }
+	}
+    }
+    /* handle "-=" and "+=" */
+    if ((nextchar == '-' || nextchar == '+' || nextchar == '^') && p[1] == '=')
+    {
+	++p;
+	nextchar = '=';
+    }
+    if ((nextchar != '=' && nextchar != ':')
+				    || xp->xp_context == EXPAND_BOOL_SETTINGS)
+    {
+	xp->xp_context = EXPAND_UNSUCCESSFUL;
+	return;
+    }
+    if (xp->xp_context != EXPAND_BOOL_SETTINGS && p[1] == NUL)
+    {
+	xp->xp_context = EXPAND_OLD_SETTING;
+	if (is_term_option)
+	    expand_option_idx = -1;
+	else
+	    expand_option_idx = opt_idx;
+	xp->xp_pattern = p + 1;
+	return;
+    }
+    xp->xp_context = EXPAND_NOTHING;
+    if (is_term_option || (flags & P_NUM))
+	return;
+
+    xp->xp_pattern = p + 1;
+
+    if (flags & P_EXPAND)
+    {
+	p = options[opt_idx].var;
+	if (p == (char_u *)&p_bdir
+		|| p == (char_u *)&p_dir
+		|| p == (char_u *)&p_path
+		|| p == (char_u *)&p_rtp
+#ifdef FEAT_SEARCHPATH
+		|| p == (char_u *)&p_cdpath
+#endif
+#ifdef FEAT_SESSION
+		|| p == (char_u *)&p_vdir
+#endif
+		)
+	{
+	    xp->xp_context = EXPAND_DIRECTORIES;
+	    if (p == (char_u *)&p_path
+#ifdef FEAT_SEARCHPATH
+		    || p == (char_u *)&p_cdpath
+#endif
+		   )
+		xp->xp_backslash = XP_BS_THREE;
+	    else
+		xp->xp_backslash = XP_BS_ONE;
+	}
+	else
+	{
+	    xp->xp_context = EXPAND_FILES;
+	    /* for 'tags' need three backslashes for a space */
+	    if (p == (char_u *)&p_tags)
+		xp->xp_backslash = XP_BS_THREE;
+	    else
+		xp->xp_backslash = XP_BS_ONE;
+	}
+    }
+
+    /* For an option that is a list of file names, find the start of the
+     * last file name. */
+    for (p = arg + STRLEN(arg) - 1; p > xp->xp_pattern; --p)
+    {
+	/* count number of backslashes before ' ' or ',' */
+	if (*p == ' ' || *p == ',')
+	{
+	    s = p;
+	    while (s > xp->xp_pattern && *(s - 1) == '\\')
+		--s;
+	    if ((*p == ' ' && (xp->xp_backslash == XP_BS_THREE && (p - s) < 3))
+		    || (*p == ',' && (flags & P_COMMA) && ((p - s) & 1) == 0))
+	    {
+		xp->xp_pattern = p + 1;
+		break;
+	    }
+	}
+    }
+
+    return;
+}
+
+    int
+ExpandSettings(xp, regmatch, num_file, file)
+    expand_T	*xp;
+    regmatch_T	*regmatch;
+    int		*num_file;
+    char_u	***file;
+{
+    int		num_normal = 0;	    /* Nr of matching non-term-code settings */
+    int		num_term = 0;	    /* Nr of matching terminal code settings */
+    int		opt_idx;
+    int		match;
+    int		count = 0;
+    char_u	*str;
+    int		loop;
+    int		is_term_opt;
+    char_u	name_buf[MAX_KEY_NAME_LEN];
+    static char *(names[]) = {"all", "termcap"};
+    int		ic = regmatch->rm_ic;	/* remember the ignore-case flag */
+
+    /* do this loop twice:
+     * loop == 0: count the number of matching options
+     * loop == 1: copy the matching options into allocated memory
+     */
+    for (loop = 0; loop <= 1; ++loop)
+    {
+	regmatch->rm_ic = ic;
+	if (xp->xp_context != EXPAND_BOOL_SETTINGS)
+	{
+	    for (match = 0; match < sizeof(names) / sizeof(char *); ++match)
+		if (vim_regexec(regmatch, (char_u *)names[match], (colnr_T)0))
+		{
+		    if (loop == 0)
+			num_normal++;
+		    else
+			(*file)[count++] = vim_strsave((char_u *)names[match]);
+		}
+	}
+	for (opt_idx = 0; (str = (char_u *)options[opt_idx].fullname) != NULL;
+								    opt_idx++)
+	{
+	    if (options[opt_idx].var == NULL)
+		continue;
+	    if (xp->xp_context == EXPAND_BOOL_SETTINGS
+	      && !(options[opt_idx].flags & P_BOOL))
+		continue;
+	    is_term_opt = istermoption(&options[opt_idx]);
+	    if (is_term_opt && num_normal > 0)
+		continue;
+	    match = FALSE;
+	    if (vim_regexec(regmatch, str, (colnr_T)0)
+		    || (options[opt_idx].shortname != NULL
+			&& vim_regexec(regmatch,
+			   (char_u *)options[opt_idx].shortname, (colnr_T)0)))
+		match = TRUE;
+	    else if (is_term_opt)
+	    {
+		name_buf[0] = '<';
+		name_buf[1] = 't';
+		name_buf[2] = '_';
+		name_buf[3] = str[2];
+		name_buf[4] = str[3];
+		name_buf[5] = '>';
+		name_buf[6] = NUL;
+		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
+		{
+		    match = TRUE;
+		    str = name_buf;
+		}
+	    }
+	    if (match)
+	    {
+		if (loop == 0)
+		{
+		    if (is_term_opt)
+			num_term++;
+		    else
+			num_normal++;
+		}
+		else
+		    (*file)[count++] = vim_strsave(str);
+	    }
+	}
+	/*
+	 * Check terminal key codes, these are not in the option table
+	 */
+	if (xp->xp_context != EXPAND_BOOL_SETTINGS  && num_normal == 0)
+	{
+	    for (opt_idx = 0; (str = get_termcode(opt_idx)) != NULL; opt_idx++)
+	    {
+		if (!isprint(str[0]) || !isprint(str[1]))
+		    continue;
+
+		name_buf[0] = 't';
+		name_buf[1] = '_';
+		name_buf[2] = str[0];
+		name_buf[3] = str[1];
+		name_buf[4] = NUL;
+
+		match = FALSE;
+		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
+		    match = TRUE;
+		else
+		{
+		    name_buf[0] = '<';
+		    name_buf[1] = 't';
+		    name_buf[2] = '_';
+		    name_buf[3] = str[0];
+		    name_buf[4] = str[1];
+		    name_buf[5] = '>';
+		    name_buf[6] = NUL;
+
+		    if (vim_regexec(regmatch, name_buf, (colnr_T)0))
+			match = TRUE;
+		}
+		if (match)
+		{
+		    if (loop == 0)
+			num_term++;
+		    else
+			(*file)[count++] = vim_strsave(name_buf);
+		}
+	    }
+
+	    /*
+	     * Check special key names.
+	     */
+	    regmatch->rm_ic = TRUE;		/* ignore case here */
+	    for (opt_idx = 0; (str = get_key_name(opt_idx)) != NULL; opt_idx++)
+	    {
+		name_buf[0] = '<';
+		STRCPY(name_buf + 1, str);
+		STRCAT(name_buf, ">");
+
+		if (vim_regexec(regmatch, name_buf, (colnr_T)0))
+		{
+		    if (loop == 0)
+			num_term++;
+		    else
+			(*file)[count++] = vim_strsave(name_buf);
+		}
+	    }
+	}
+	if (loop == 0)
+	{
+	    if (num_normal > 0)
+		*num_file = num_normal;
+	    else if (num_term > 0)
+		*num_file = num_term;
+	    else
+		return OK;
+	    *file = (char_u **)alloc((unsigned)(*num_file * sizeof(char_u *)));
+	    if (*file == NULL)
+	    {
+		*file = (char_u **)"";
+		return FAIL;
+	    }
+	}
+    }
+    return OK;
+}
+
+    int
+ExpandOldSetting(num_file, file)
+    int	    *num_file;
+    char_u  ***file;
+{
+    char_u  *var = NULL;	/* init for GCC */
+    char_u  *buf;
+
+    *num_file = 0;
+    *file = (char_u **)alloc((unsigned)sizeof(char_u *));
+    if (*file == NULL)
+	return FAIL;
+
+    /*
+     * For a terminal key code expand_option_idx is < 0.
+     */
+    if (expand_option_idx < 0)
+    {
+	var = find_termcode(expand_option_name + 2);
+	if (var == NULL)
+	    expand_option_idx = findoption(expand_option_name);
+    }
+
+    if (expand_option_idx >= 0)
+    {
+	/* put string of option value in NameBuff */
+	option_value2string(&options[expand_option_idx], expand_option_flags);
+	var = NameBuff;
+    }
+    else if (var == NULL)
+	var = (char_u *)"";
+
+    /* A backslash is required before some characters.  This is the reverse of
+     * what happens in do_set(). */
+    buf = vim_strsave_escaped(var, escape_chars);
+
+    if (buf == NULL)
+    {
+	vim_free(*file);
+	*file = NULL;
+	return FAIL;
+    }
+
+#ifdef BACKSLASH_IN_FILENAME
+    /* For MS-Windows et al. we don't double backslashes at the start and
+     * before a file name character. */
+    for (var = buf; *var != NUL; )
+    {
+	if (var[0] == '\\' && var[1] == '\\'
+		&& expand_option_idx >= 0
+		&& (options[expand_option_idx].flags & P_EXPAND)
+		&& vim_isfilec(var[2])
+		&& (var[2] != '\\' || (var == buf && var[4] != '\\')))
+	    mch_memmove(var, var + 1, STRLEN(var));
+#ifdef FEAT_MBYTE
+	else if (has_mbyte)
+	    var += (*mb_ptr2len_check)(var) - 1;
+#endif
+	++var;
+    }
+#endif
+
+    *file[0] = buf;
+    *num_file = 1;
+    return OK;
+}
+#endif
+
+/*
+ * Get the value for the numeric or string option *opp in a nice format into
+ * NameBuff[].  Must not be called with a hidden option!
+ */
+    static void
+option_value2string(opp, opt_flags)
+    struct vimoption	*opp;
+    int			opt_flags;	/* OPT_GLOBAL and/or OPT_LOCAL */
+{
+    char_u	*varp;
+
+    varp = get_varp_scope(opp, opt_flags);
+
+    if (opp->flags & P_NUM)
+    {
+	long wc = 0;
+
+	if (wc_use_keyname(varp, &wc))
+	    STRCPY(NameBuff, get_special_key_name((int)wc, 0));
+	else if (wc != 0)
+	    STRCPY(NameBuff, transchar((int)wc));
+	else
+	    sprintf((char *)NameBuff, "%ld", *(long *)varp);
+    }
+    else    /* P_STRING */
+    {
+	varp = *(char_u **)(varp);
+	if (varp == NULL)		    /* just in case */
+	    NameBuff[0] = NUL;
+#ifdef FEAT_CRYPT
+	/* don't show the actual value of 'key', only that it's set */
+	if (opp->var == (char_u *)&p_key && *varp)
+	    STRCPY(NameBuff, "*****");
+#endif
+	else if (opp->flags & P_EXPAND)
+	    home_replace(NULL, varp, NameBuff, MAXPATHL, FALSE);
+	/* Translate 'pastetoggle' into special key names */
+	else if ((char_u **)opp->var == &p_pt)
+	    str2specialbuf(p_pt, NameBuff, MAXPATHL);
+	else
+	    STRNCPY(NameBuff, varp, MAXPATHL);
+    }
+}
+
+/*
+ * Return TRUE if "varp" points to 'wildchar' or 'wildcharm' and it can be
+ * printed as a keyname.
+ * "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'.
+ */
+    static int
+wc_use_keyname(varp, wcp)
+    char_u	*varp;
+    long	*wcp;
+{
+    if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm))
+    {
+	*wcp = *(long *)varp;
+	if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)*wcp) >= 0)
+	    return TRUE;
+    }
+    return FALSE;
+}
+
+#ifdef FEAT_LANGMAP
+/*
+ * Any character has an equivalent character.  This is used for keyboards that
+ * have a special language mode that sends characters above 128 (although
+ * other characters can be translated too).
+ */
+
+/*
+ * char_u langmap_mapchar[256];
+ * Normally maps each of the 128 upper chars to an <128 ascii char; used to
+ * "translate" native lang chars in normal mode or some cases of
+ * insert mode without having to tediously switch lang mode back&forth.
+ */
+
+    static void
+langmap_init()
+{
+    int i;
+
+    for (i = 0; i < 256; i++)		/* we init with a-one-to one map */
+	langmap_mapchar[i] = i;
+}
+
+/*
+ * Called when langmap option is set; the language map can be
+ * changed at any time!
+ */
+    static void
+langmap_set()
+{
+    char_u  *p;
+    char_u  *p2;
+    int	    from, to;
+
+    langmap_init();			    /* back to one-to-one map first */
+
+    for (p = p_langmap; p[0] != NUL; )
+    {
+	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';'; ++p2)
+	{
+	    if (p2[0] == '\\' && p2[1] != NUL)
+		++p2;
+#ifdef FEAT_MBYTE
+	    p2 += (*mb_ptr2len_check)(p2) - 1;
+#endif
+	}
+	if (p2[0] == ';')
+	    ++p2;	    /* abcd;ABCD form, p2 points to A */
+	else
+	    p2 = NULL;	    /* aAbBcCdD form, p2 is NULL */
+	while (p[0])
+	{
+	    if (p[0] == '\\' && p[1] != NUL)
+		++p;
+#ifdef FEAT_MBYTE
+	    from = (*mb_ptr2char)(p);
+#else
+	    from = p[0];
+#endif
+	    if (p2 == NULL)
+	    {
+#ifdef FEAT_MBYTE
+		p += (*mb_ptr2len_check)(p);
+#else
+		++p;
+#endif
+		if (p[0] == '\\')
+		    ++p;
+#ifdef FEAT_MBYTE
+		to = (*mb_ptr2char)(p);
+#else
+		to = p[0];
+#endif
+	    }
+	    else
+	    {
+		if (p2[0] == '\\')
+		    ++p2;
+#ifdef FEAT_MBYTE
+		to = (*mb_ptr2char)(p2);
+#else
+		to = p2[0];
+#endif
+	    }
+	    if (to == NUL)
+	    {
+		EMSG2(_("E357: 'langmap': Matching character missing for %s"),
+							     transchar(from));
+		return;
+	    }
+	    langmap_mapchar[from & 255] = to;
+
+	    /* Advance to next pair */
+#ifdef FEAT_MBYTE
+	    p += (*mb_ptr2len_check)(p);
+#else
+	    ++p;
+#endif
+	    if (p2 == NULL)
+	    {
+		if (p[0] == ',')
+		{
+		    ++p;
+		    break;
+		}
+	    }
+	    else
+	    {
+#ifdef FEAT_MBYTE
+		p2 += (*mb_ptr2len_check)(p2);
+#else
+		++p2;
+#endif
+		if (*p == ';')
+		{
+		    p = p2;
+		    if (p[0] != NUL)
+		    {
+			if (p[0] != ',')
+			{
+			    EMSG2(_("E358: 'langmap': Extra characters after semicolon: %s"), p);
+			    return;
+			}
+			++p;
+		    }
+		    break;
+		}
+	    }
+	}
+    }
+}
+#endif
+
+/*
+ * Return TRUE if format option 'x' is in effect.
+ * Take care of no formatting when 'paste' is set.
+ */
+    int
+has_format_option(x)
+    int		x;
+{
+    if (p_paste)
+	return FALSE;
+    return (vim_strchr(curbuf->b_p_fo, x) != NULL);
+}
+
+/*
+ * Return TRUE if "x" is present in 'shortmess' option, or
+ * 'shortmess' contains 'a' and "x" is present in SHM_A.
+ */
+    int
+shortmess(x)
+    int	    x;
+{
+    return (   vim_strchr(p_shm, x) != NULL
+	    || (vim_strchr(p_shm, 'a') != NULL
+		&& vim_strchr((char_u *)SHM_A, x) != NULL));
+}
+
+/*
+ * paste_option_changed() - Called after p_paste was set or reset.
+ */
+    static void
+paste_option_changed()
+{
+    static int	old_p_paste = FALSE;
+    static int	save_sm = 0;
+#ifdef FEAT_CMDL_INFO
+    static int	save_ru = 0;
+#endif
+#ifdef FEAT_RIGHTLEFT
+    static int	save_ri = 0;
+    static int	save_hkmap = 0;
+#endif
+    buf_T	*buf;
+
+    if (p_paste)
+    {
+	/*
+	 * Paste switched from off to on.
+	 * Save the current values, so they can be restored later.
+	 */
+	if (!old_p_paste)
+	{
+	    /* save options for each buffer */
+	    for (buf = firstbuf; buf != NULL; buf = buf->b_next)
+	    {
+		buf->b_p_tw_nopaste = buf->b_p_tw;
+		buf->b_p_wm_nopaste = buf->b_p_wm;
+		buf->b_p_sts_nopaste = buf->b_p_sts;
+		buf->b_p_ai_nopaste = buf->b_p_ai;
+	    }
+
+	    /* save global options */
+	    save_sm = p_sm;
+#ifdef FEAT_CMDL_INFO
+	    save_ru = p_ru;
+#endif
+#ifdef FEAT_RIGHTLEFT
+	    save_ri = p_ri;
+	    save_hkmap = p_hkmap;
+#endif
+	    /* save global values for local buffer options */
+	    p_tw_nopaste = p_tw;
+	    p_wm_nopaste = p_wm;
+	    p_sts_nopaste = p_sts;
+	    p_ai_nopaste = p_ai;
+	}
+
+	/*
+	 * Always set the option values, also when 'paste' is set when it is
+	 * already on.
+	 */
+	/* set options for each buffer */
+	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
+	{
+	    buf->b_p_tw = 0;	    /* textwidth is 0 */
+	    buf->b_p_wm = 0;	    /* wrapmargin is 0 */
+	    buf->b_p_sts = 0;	    /* softtabstop is 0 */
+	    buf->b_p_ai = 0;	    /* no auto-indent */
+	}
+
+	/* set global options */
+	p_sm = 0;		    /* no showmatch */
+#ifdef FEAT_CMDL_INFO
+# ifdef FEAT_WINDOWS
+	if (p_ru)
+	    status_redraw_all();    /* redraw to remove the ruler */
+# endif
+	p_ru = 0;		    /* no ruler */
+#endif
+#ifdef FEAT_RIGHTLEFT
+	p_ri = 0;		    /* no reverse insert */
+	p_hkmap = 0;		    /* no Hebrew keyboard */
+#endif
+	/* set global values for local buffer options */
+	p_tw = 0;
+	p_wm = 0;
+	p_sts = 0;
+	p_ai = 0;
+    }
+
+    /*
+     * Paste switched from on to off: Restore saved values.
+     */
+    else if (old_p_paste)
+    {
+	/* restore options for each buffer */
+	for (buf = firstbuf; buf != NULL; buf = buf->b_next)
+	{
+	    buf->b_p_tw = buf->b_p_tw_nopaste;
+	    buf->b_p_wm = buf->b_p_wm_nopaste;
+	    buf->b_p_sts = buf->b_p_sts_nopaste;
+	    buf->b_p_ai = buf->b_p_ai_nopaste;
+	}
+
+	/* restore global options */
+	p_sm = save_sm;
+#ifdef FEAT_CMDL_INFO
+# ifdef FEAT_WINDOWS
+	if (p_ru != save_ru)
+	    status_redraw_all();    /* redraw to draw the ruler */
+# endif
+	p_ru = save_ru;
+#endif
+#ifdef FEAT_RIGHTLEFT
+	p_ri = save_ri;
+	p_hkmap = save_hkmap;
+#endif
+	/* set global values for local buffer options */
+	p_tw = p_tw_nopaste;
+	p_wm = p_wm_nopaste;
+	p_sts = p_sts_nopaste;
+	p_ai = p_ai_nopaste;
+    }
+
+    old_p_paste = p_paste;
+}
+
+/*
+ * vimrc_found() - Called when a ".vimrc" or "VIMINIT" has been found.
+ *
+ * Reset 'compatible' and set the values for options that didn't get set yet
+ * to the Vim defaults.
+ * Don't do this if the 'compatible' option has been set or reset before.
+ */
+    void
+vimrc_found()
+{
+    int	    opt_idx;
+
+    if (!option_was_set((char_u *)"cp"))
+    {
+	p_cp = FALSE;
+	for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
+	    if (!(options[opt_idx].flags & (P_WAS_SET|P_VI_DEF)))
+		set_option_default(opt_idx, OPT_FREE, FALSE);
+	didset_options();
+    }
+}
+
+/*
+ * Set 'compatible' on or off.  Called for "-C" and "-N" command line arg.
+ */
+    void
+change_compatible(on)
+    int	    on;
+{
+    if (p_cp != on)
+    {
+	p_cp = on;
+	compatible_set();
+    }
+    options[findoption((char_u *)"cp")].flags |= P_WAS_SET;
+}
+
+/*
+ * Return TRUE when option "name" has been set.
+ */
+    int
+option_was_set(name)
+    char_u	*name;
+{
+    int idx;
+
+    idx = findoption(name);
+    if (idx < 0)	/* unknown option */
+	return FALSE;
+    if (options[idx].flags & P_WAS_SET)
+	return TRUE;
+    return FALSE;
+}
+
+/*
+ * compatible_set() - Called when 'compatible' has been set or unset.
+ *
+ * When 'compatible' set: Set all relevant options (those that have the P_VIM)
+ * flag) to a Vi compatible value.
+ * When 'compatible' is unset: Set all options that have a different default
+ * for Vim (without the P_VI_DEF flag) to that default.
+ */
+    static void
+compatible_set()
+{
+    int	    opt_idx;
+
+    for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
+	if (	   ((options[opt_idx].flags & P_VIM) && p_cp)
+		|| (!(options[opt_idx].flags & P_VI_DEF) && !p_cp))
+	    set_option_default(opt_idx, OPT_FREE, p_cp);
+    didset_options();
+}
+
+#ifdef FEAT_LINEBREAK
+
+# if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
+   /* Borland C++ screws up loop optimisation here (negri) */
+#  pragma option -O-l
+# endif
+
+/*
+ * fill_breakat_flags() -- called when 'breakat' changes value.
+ */
+    static void
+fill_breakat_flags()
+{
+    char_u	*c;
+    int		i;
+
+    for (i = 0; i < 256; i++)
+	breakat_flags[i] = FALSE;
+
+    if (p_breakat != NULL)
+	for (c = p_breakat; *c; c++)
+	    breakat_flags[*c] = TRUE;
+}
+
+# if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
+#  pragma option -O.l
+# endif
+
+#endif
+
+/*
+ * Check an option that can be a range of string values.
+ *
+ * Return OK for correct value, FAIL otherwise.
+ * Empty is always OK.
+ */
+    static int
+check_opt_strings(val, values, list)
+    char_u	*val;
+    char	**values;
+    int		list;	    /* when TRUE: accept a list of values */
+{
+    return opt_strings_flags(val, values, NULL, list);
+}
+
+/*
+ * Handle an option that can be a range of string values.
+ * Set a flag in "*flagp" for each string present.
+ *
+ * Return OK for correct value, FAIL otherwise.
+ * Empty is always OK.
+ */
+    static int
+opt_strings_flags(val, values, flagp, list)
+    char_u	*val;		/* new value */
+    char	**values;	/* array of valid string values */
+    unsigned	*flagp;
+    int		list;		/* when TRUE: accept a list of values */
+{
+    int		i;
+    int		len;
+    unsigned	new_flags = 0;
+
+    while (*val)
+    {
+	for (i = 0; ; ++i)
+	{
+	    if (values[i] == NULL)	/* val not found in values[] */
+		return FAIL;
+
+	    len = (int)STRLEN(values[i]);
+	    if (STRNCMP(values[i], val, len) == 0
+		    && ((list && val[len] == ',') || val[len] == NUL))
+	    {
+		val += len + (val[len] == ',');
+		new_flags |= (1 << i);
+		break;		/* check next item in val list */
+	    }
+	}
+    }
+    if (flagp != NULL)
+	*flagp = new_flags;
+
+    return OK;
+}
+
+/*
+ * Read the 'wildmode' option, fill wim_flags[].
+ */
+    static int
+check_opt_wim()
+{
+    char_u	new_wim_flags[4];
+    char_u	*p;
+    int		i;
+    int		idx = 0;
+
+    for (i = 0; i < 4; ++i)
+	new_wim_flags[i] = 0;
+
+    for (p = p_wim; *p; ++p)
+    {
+	for (i = 0; ASCII_ISALPHA(p[i]); ++i)
+	    ;
+	if (p[i] != NUL && p[i] != ',' && p[i] != ':')
+	    return FAIL;
+	if (i == 7 && STRNCMP(p, "longest", 7) == 0)
+	    new_wim_flags[idx] |= WIM_LONGEST;
+	else if (i == 4 && STRNCMP(p, "full", 4) == 0)
+	    new_wim_flags[idx] |= WIM_FULL;
+	else if (i == 4 && STRNCMP(p, "list", 4) == 0)
+	    new_wim_flags[idx] |= WIM_LIST;
+	else
+	    return FAIL;
+	p += i;
+	if (*p == NUL)
+	    break;
+	if (*p == ',')
+	{
+	    if (idx == 3)
+		return FAIL;
+	    ++idx;
+	}
+    }
+
+    /* fill remaining entries with last flag */
+    while (idx < 3)
+    {
+	new_wim_flags[idx + 1] = new_wim_flags[idx];
+	++idx;
+    }
+
+    /* only when there are no errors, wim_flags[] is changed */
+    for (i = 0; i < 4; ++i)
+	wim_flags[i] = new_wim_flags[i];
+    return OK;
+}
+
+/*
+ * Check if backspacing over something is allowed.
+ */
+    int
+can_bs(what)
+    int		what;	    /* BS_INDENT, BS_EOL or BS_START */
+{
+    switch (*p_bs)
+    {
+	case '2':	return TRUE;
+	case '1':	return (what != BS_START);
+	case '0':	return FALSE;
+    }
+    return vim_strchr(p_bs, what) != NULL;
+}
+
+/*
+ * Save the current values of 'fileformat' and 'fileencoding', so that we know
+ * the file must be considered changed when the value is different.
+ */
+    void
+save_file_ff(buf)
+    buf_T	*buf;
+{
+    buf->b_start_ffc = *buf->b_p_ff;
+    buf->b_start_eol = buf->b_p_eol;
+#ifdef FEAT_MBYTE
+    /* Only use free/alloc when necessary, they take time. */
+    if (buf->b_start_fenc == NULL
+			     || STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0)
+    {
+	vim_free(buf->b_start_fenc);
+	buf->b_start_fenc = vim_strsave(buf->b_p_fenc);
+    }
+#endif
+}
+
+/*
+ * Return TRUE if 'fileformat' and/or 'fileencoding' has a different value
+ * from when editing started (save_file_ff() called).
+ * Also when 'endofline' was changed and 'binary' is set.
+ * Don't consider a new, empty buffer to be changed.
+ */
+    int
+file_ff_differs(buf)
+    buf_T	*buf;
+{
+    if ((buf->b_flags & BF_NEW)
+	    && buf->b_ml.ml_line_count == 1
+	    && *ml_get_buf(buf, (linenr_T)1, FALSE) == NUL)
+	return FALSE;
+    if (buf->b_start_ffc != *buf->b_p_ff)
+	return TRUE;
+    if (buf->b_p_bin && buf->b_start_eol != buf->b_p_eol)
+	return TRUE;
+#ifdef FEAT_MBYTE
+    if (buf->b_start_fenc == NULL)
+	return (*buf->b_p_fenc != NUL);
+    return (STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0);
+#else
+    return FALSE;
+#endif
+}
+
+/*
+ * return OK if "p" is a valid fileformat name, FAIL otherwise.
+ */
+    int
+check_ff_value(p)
+    char_u	*p;
+{
+    return check_opt_strings(p, p_ff_values, FALSE);
+}