Commit message: patch 8.0.0056
Problem:    When setting 'filetype' there is no check for a valid name.
Solution:   Only allow valid characters in 'filetype', 'syntax' and 'keymap'.
CVE: CVE-2016-1248
CWE: CWE-20
Vulnerability description: vim before patch 8.0.0056 does not properly validate values for the 'filetype', 'syntax' and 'keymap' options, which may result in the execution of arbitrary code if a file with a specially crafted modeline is opened.

Project: vim
File: option.c

didset_options2(void)
{
    /* Initialize the highlight_attr[] table. */
    (void)highlight_changed();

    /* Parse default for 'wildmode'  */
    check_opt_wim();

    (void)set_chars_option(&p_lcs);
#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
}

Project: vim
File: option.c

reset_option_was_set(char_u *name)
{
    int idx = findoption(name);

    if (idx >= 0)
	options[idx].flags &= ~P_WAS_SET;
}

Project: vim
File: option.c

valid_filetype(char_u *val)
{
    char_u *s;

    for (s = val; *s != NUL; ++s)
	if (!ASCII_ISALNUM(*s) && vim_strchr((char_u *)".-_", *s) == NULL)
	    return FALSE;
    return TRUE;
}

Project: vim
File: option.c

string_to_key(char_u *arg)
{
    if (*arg == '<')
	return find_key_option(arg + 1);
    if (*arg == '^')
	return Ctrl_chr(arg[1]);
    return *arg;
}

Project: vim
File: option.c

get_option_value(
    char_u	*name,
    long	*numval,
    char_u	**stringval,	    /* NULL when only checking existence */
    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
						&& **(char_u **)(varp) != NUL)
		*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 = (long) *(int *)varp;
    }
    return 1;
}

Project: vim
File: option.c

illegal_char(char_u *errbuf, int c)
{
    if (errbuf == NULL)
	return (char_u *)"";
    sprintf((char *)errbuf, _("E539: Illegal character <%s>"),
							(char *)transchar(c));
    return errbuf;
}

Project: vim
File: option.c

set_helplang_default(char_u *lang)
{
    int		idx;

    if (lang == NULL || STRLEN(lang) < 2)	/* safety check */
	return;
    idx = findoption((char_u *)"hlg");
    if (idx >= 0 && !(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
	{
	    /* zh_CN becomes "cn", zh_TW becomes "tw". */
	    if (STRNICMP(p_hlg, "zh_", 3) == 0 && STRLEN(p_hlg) >= 5)
	    {
		p_hlg[0] = TOLOWER_ASC(p_hlg[3]);
		p_hlg[1] = TOLOWER_ASC(p_hlg[4]);
	    }
	    p_hlg[2] = NUL;
	}
	options[idx].flags |= P_ALLOCED;
    }
}

Project: vim
File: option.c

check_clipboard_option(void)
{
    int		new_unnamed = 0;
    int		new_autoselect_star = FALSE;
    int		new_autoselect_plus = FALSE;
    int		new_autoselectml = FALSE;
    int		new_html = 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 |= CLIP_UNNAMED;
	    p += 7;
	}
	else if (STRNCMP(p, "unnamedplus", 11) == 0
					    && (p[11] == ',' || p[11] == NUL))
	{
	    new_unnamed |= CLIP_UNNAMED_PLUS;
	    p += 11;
	}
	else if (STRNCMP(p, "autoselect", 10) == 0
					    && (p[10] == ',' || p[10] == NUL))
	{
	    new_autoselect_star = TRUE;
	    p += 10;
	}
	else if (STRNCMP(p, "autoselectplus", 14) == 0
					    && (p[14] == ',' || p[14] == NUL))
	{
	    new_autoselect_plus = TRUE;
	    p += 14;
	}
	else if (STRNCMP(p, "autoselectml", 12) == 0
					    && (p[12] == ',' || p[12] == NUL))
	{
	    new_autoselectml = TRUE;
	    p += 12;
	}
	else if (STRNCMP(p, "html", 4) == 0 && (p[4] == ',' || p[4] == NUL))
	{
	    new_html = TRUE;
	    p += 4;
	}
	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_star = new_autoselect_star;
	clip_autoselect_plus = new_autoselect_plus;
	clip_autoselectml = new_autoselectml;
	clip_html = new_html;
	vim_regfree(clip_exclude_prog);
	clip_exclude_prog = new_exclude_prog;
#ifdef FEAT_GUI_GTK
	if (gui.in_use)
	{
	    gui_gtk_set_selection_targets();
	    gui_gtk_set_dnd_targets();
	}
#endif
    }
    else
	vim_regfree(new_exclude_prog);

    return errmsg;
}

Project: vim
File: option.c

makefoldset(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;
}

Project: vim
File: option.c

find_viminfo_parameter(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;
}

Project: vim
File: option.c

gui_bg_default(void)
{
    if (gui_get_lightness(gui.back_pixel) < 127)
	return (char_u *)"dark";
    return (char_u *)"light";
}

Project: vim
File: option.c

did_set_spell_option(int is_spellfile)
{
    char_u  *errmsg = NULL;
    win_T   *wp;
    int	    l;

    if (is_spellfile)
    {
	l = (int)STRLEN(curwin->w_s->b_p_spf);
	if (l > 0 && (l < 4
			|| STRCMP(curwin->w_s->b_p_spf + l - 4, ".add") != 0))
	    errmsg = e_invarg;
    }

    if (errmsg == NULL)
    {
	FOR_ALL_WINDOWS(wp)
	    if (wp->w_buffer == curbuf && wp->w_p_spell)
	    {
		errmsg = did_set_spelllang(wp);
# ifdef FEAT_WINDOWS
		break;
# endif
	    }
    }
    return errmsg;
}

Project: vim
File: option.c

compatible_set(void)
{
    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();
    didset_options2();
}

Project: vim
File: option.c

check_opt_strings(
    char_u	*val,
    char	**values,
    int		list)	    /* when TRUE: accept a list of values */
{
    return opt_strings_flags(val, values, NULL, list);
}

Project: vim
File: option.c

save_file_ff(buf_T *buf)
{
    buf->b_start_ffc = *buf->b_p_ff;
    buf->b_start_eol = buf->b_p_eol;
#ifdef FEAT_MBYTE
    buf->b_start_bomb = buf->b_p_bomb;

    /* 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
}

Project: vim
File: option.c

check_redraw(long_u flags)
{
    /* Careful: P_RCLR and P_RALL are a combination of other P_ flags */
    int		doclear = (flags & P_RCLR) == P_RCLR;
    int		all = ((flags & P_RALL) == P_RALL || doclear);

#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 (doclear)
	redraw_all_later(CLEAR);
    else if (all)
	redraw_all_later(NOT_VALID);
}

Project: vim
File: option.c

check_winopt(winopt_T *wop UNUSED)
{
#ifdef FEAT_FOLDING
    check_string_option(&wop->wo_fdi);
    check_string_option(&wop->wo_fdm);
    check_string_option(&wop->wo_fdm_save);
# 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_SIGNS
    check_string_option(&wop->wo_scl);
#endif
#ifdef FEAT_RIGHTLEFT
    check_string_option(&wop->wo_rlc);
#endif
#ifdef FEAT_STL_OPT
    check_string_option(&wop->wo_stl);
#endif
#ifdef FEAT_SYN_HL
    check_string_option(&wop->wo_cc);
#endif
#ifdef FEAT_CONCEAL
    check_string_option(&wop->wo_cocu);
#endif
#ifdef FEAT_LINEBREAK
    check_string_option(&wop->wo_briopt);
#endif
}

Project: vim
File: option.c

set_init_1(void)
{
    char_u	*p;
    int		opt_idx;
    long_u	n;

#ifdef FEAT_LANGMAP
    langmap_init();
#endif

    /* Be Vi compatible by default */
    p_cp = TRUE;

    /* Use POSIX compatibility when $VIM_POSIX is set. */
    if (mch_getenv((char_u *)"VIM_POSIX") != NULL)
    {
	set_string_default("cpo", (char_u *)CPO_ALL);
	set_string_default("shm", (char_u *)"A");
    }

    /*
     * Find default value for 'shell' option.
     * Don't use it if it is empty.
     */
    if (((p = mch_getenv((char_u *)"SHELL")) != NULL && *p != NUL)
#if defined(MSWIN)
	    || ((p = mch_getenv((char_u *)"COMSPEC")) != NULL && *p != NUL)
# ifdef WIN3264
	    || ((p = (char_u *)default_shell()) != NULL && *p != NUL)
# 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;
	int		mustfree;

	ga_init2(&ga, 1, 100);
	for (n = 0; n < (long)(sizeof(names) / sizeof(char *)); ++n)
	{
	    mustfree = FALSE;
# ifdef UNIX
	    if (*names[n] == NUL)
		p = (char_u *)"/tmp";
	    else
# endif
		p = vim_getenv((char_u *)names[n], &mustfree);
	    if (p != NULL && *p != NUL)
	    {
		/* First time count the NUL, otherwise count the ','. */
		len = (int)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_len += len;
		}
	    }
	    if (mustfree)
		vim_free(p);
	}
	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 (opt_idx >= 0)
    {
#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) >> 1);
#else
# ifdef HAVE_TOTAL_MEM
	    /* Use amount of memory available to Vim. */
	    n = (mch_total_mem(FALSE) >> 1);
# else
	    n = (0x7fffffff >> 11);
# endif
#endif
	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
	    opt_idx = findoption((char_u *)"maxmem");
	    if (opt_idx >= 0)
	    {
#if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM)
		if ((long)(long_i)options[opt_idx].def_val[VI_DEFAULT] > (long)n
		  || (long)(long_i)options[opt_idx].def_val[VI_DEFAULT] == 0L)
#endif
		    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
	    }
	}
    }

#ifdef FEAT_SEARCHPATH
    {
	char_u	*cdpath;
	char_u	*buf;
	int	i;
	int	j;
	int	mustfree = FALSE;

	/* Initialize the 'cdpath' option's default value. */
	cdpath = vim_getenv((char_u *)"CDPATH", &mustfree);
	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");
		if (opt_idx >= 0)
		{
		    options[opt_idx].def_val[VI_DEFAULT] = buf;
		    options[opt_idx].flags |= P_DEF_ALLOCED;
		}
		else
		    vim_free(buf); /* cannot happen */
	    }
	    if (mustfree)
		vim_free(cdpath);
	}
    }
#endif

#if defined(FEAT_POSTSCRIPT) && (defined(MSWIN) || 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)
		       (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",
# if defined(MSWIN)
	    (char_u *)"system('copy' . ' ' . v:fname_in . (&printdevice == '' ? ' LPT1:' : (' \"' . &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 */
    curbuf->b_p_ul = NO_LOCAL_UNDOLEVEL;
    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_SPELL
    /* Use the current chartab for the generic chartab. This is not in
     * didset_options() because it only depends on 'encoding'. */
    init_spell_chartab();
#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;
	}
    }

    save_file_ff(curbuf);	/* Buffer is unchanged */

#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

    didset_options2();

#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((char_u *)"LANG", (char_u *)buf);
	}
    }
# else
#  ifdef MACOS_CONVERT
    /* Moved to os_mac_conv.c to avoid dependency problems. */
    mac_lang_init();
#  endif
# 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 (STRCMP(p_enc, "gb18030") == 0)
	{
	    /* We don't support "gb18030", but "cp936" is a good substitute
	     * for practical purposes, thus use that.  It's not an alias to
	     * still support conversion between gb18030 and utf-8. */
	    p_enc = vim_strsave((char_u *)"cp936");
	    vim_free(p);
	}
	if (mb_init() == NULL)
	{
	    opt_idx = findoption((char_u *)"encoding");
	    if (opt_idx >= 0)
	    {
		options[opt_idx].def_val[VI_DEFAULT] = p_enc;
		options[opt_idx].flags |= P_DEF_ALLOCED;
	    }

#if defined(MSWIN) || defined(MACOS) || defined(VMS)
	    if (STRCMP(p_enc, "latin1") == 0
# ifdef FEAT_MBYTE
		    || enc_utf8
# endif
		    )
	    {
		/* Adjust the default for 'isprint' and 'iskeyword' to match
		 * latin1.  Also set the defaults for when 'nocompatible' is
		 * set. */
		set_string_option_direct((char_u *)"isp", -1,
					      ISP_LATIN1, OPT_FREE, SID_NONE);
		set_string_option_direct((char_u *)"isk", -1,
					      ISK_LATIN1, OPT_FREE, SID_NONE);
		opt_idx = findoption((char_u *)"isp");
		if (opt_idx >= 0)
		    options[opt_idx].def_val[VIM_DEFAULT] = ISP_LATIN1;
		opt_idx = findoption((char_u *)"isk");
		if (opt_idx >= 0)
		    options[opt_idx].def_val[VIM_DEFAULT] = ISK_LATIN1;
		(void)init_chartab();
	    }
#endif

# 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");
		    if (opt_idx >= 0)
		    {
			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
# if defined(WIN3264) && defined(FEAT_MBYTE)
	    /* $HOME may have characters in active code page. */
	    init_homedir();
# 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
}

Project: vim
File: option.c

get_sw_value(buf_T *buf)
{
    return buf->b_p_sw ? buf->b_p_sw : buf->b_p_ts;
}

Project: vim
File: option.c

check_cedit(void)
{
    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;
}

Project: vim
File: option.c

set_bool_option(
    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;

    /* 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. */
    set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
#endif

#ifdef FEAT_GUI
    need_mouse_correct = TRUE;
#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();
    }

#ifdef FEAT_LANGMAP
    if ((int *)varp == &p_lrm)
	/* 'langremap' -> !'langnoremap' */
	p_lnr = !p_lrm;
    else if ((int *)varp == &p_lnr)
	/* 'langnoremap' -> !'langremap' */
	p_lrm = !p_lnr;
#endif

#ifdef FEAT_PERSISTENT_UNDO
    /* 'undofile' */
    else if ((int *)varp == &curbuf->b_p_udf || (int *)varp == &p_udf)
    {
	/* Only take action when the option was set. When reset we do not
	 * delete the undo file, the option may be set again without making
	 * any changes in between. */
	if (curbuf->b_p_udf || p_udf)
	{
	    char_u	hash[UNDO_HASH_SIZE];
	    buf_T	*save_curbuf = curbuf;

	    FOR_ALL_BUFFERS(curbuf)
	    {
		/* When 'undofile' is set globally: for every buffer, otherwise
		 * only for the current buffer: Try to read in the undofile,
		 * if one exists, the buffer wasn't changed and the buffer was
		 * loaded */
		if ((curbuf == save_curbuf
				|| (opt_flags & OPT_GLOBAL) || opt_flags == 0)
			&& !curbufIsChanged() && curbuf->b_ml.ml_mfp != NULL)
		{
		    u_compute_hash(hash);
		    u_read_undo(NULL, hash, curbuf->b_fname);
		}
	    }
	    curbuf = save_curbuf;
	}
    }
#endif

    else if ((int *)varp == &curbuf->b_p_ro)
    {
	/* when 'readonly' is reset globally, also reset readonlymode */
	if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0)
	    readonlymode = FALSE;

	/* when 'readonly' is set may give W10 again */
	if (curbuf->b_p_ro)
	    curbuf->b_did_warn = FALSE;

#ifdef FEAT_TITLE
	redraw_titles();
#endif
    }

#ifdef FEAT_GUI
    else if ((int *)varp == &p_mh)
    {
	if (!p_mh)
	    gui_mch_mousehide(FALSE);
    }
#endif

#ifdef FEAT_TITLE
    /* when 'modifiable' is changed, redraw the window title */
    else if ((int *)varp == &curbuf->b_p_ma)
    {
	redraw_titles();
    }
    /* when 'endofline' is changed, redraw the window title */
    else if ((int *)varp == &curbuf->b_p_eol)
    {
	redraw_titles();
    }
    /* when 'fixeol' is changed, redraw the window title */
    else if ((int *)varp == &curbuf->b_p_fixeol)
    {
	redraw_titles();
    }
# ifdef FEAT_MBYTE
    /* when 'bomb' is changed, redraw the window title and tab page text */
    else if ((int *)varp == &curbuf->b_p_bomb)
    {
	redraw_titles();
    }
# endif
#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
	redraw_titles();
#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
	    /* no need to reset curbuf->b_may_swap, ml_open_file() will check
	     * buf->b_p_swf */
	    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, 0);
	}
	/* remove 's' from p_shm */
	else if (!p_terse && p != NULL)
	    STRMOVE(p, p + 1);
    }

    /* 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;
	}
	/* only reset if it was set previously */
	else if (old_value)
	{
	    need_start_insertmode = FALSE;
	    stop_insert_mode = TRUE;
	    if (restart_edit != 0 && mode_displayed)
		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(SOME_VALID);
    }

#ifdef FEAT_SEARCH_EXTRA
    /* when 'hlsearch' is set or reset: reset no_hlsearch */
    else if ((int *)varp == &p_hls)
    {
	SET_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);
	    curwin->w_scbind_pos = curwin->w_topline;
	}
    }
#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_ALL_WINDOWS(win)
		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, 0);

    /*
     * 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
	redraw_titles();
#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] = '/';
	}
	else
	{
	    psepc = '\\';
	    psepcN = '/';
	    pseps[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);
    }

#ifdef FEAT_BEVAL
    else if ((int *)varp == &p_beval)
    {
	if (p_beval && !old_value)
	    gui_mch_enable_beval_area(balloonEval);
	else if (!p_beval && old_value)
	    gui_mch_disable_beval_area(balloonEval);
    }
#endif

#ifdef FEAT_AUTOCHDIR
    else if ((int *)varp == &p_acd)
    {
	/* Change directories when the 'acd' option is set now. */
	DO_AUTOCHDIR
    }
#endif

#ifdef FEAT_DIFF
    /* 'diff' */
    else if ((int *)varp == &curwin->w_p_diff)
    {
	/* May add or remove the buffer from the list of diff buffers. */
	diff_buf_adjust(curwin);
# 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);
	else if (State & INSERT)
	    /* When the option is set from an autocommand, it may need to take
	     * effect right away. */
	    im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
    }
#endif

#ifdef FEAT_SPELL
    /* 'spell' */
    else if ((int *)varp == &curwin->w_p_spell)
    {
	if (curwin->w_p_spell)
	{
	    char_u	*errmsg = did_set_spelllang(curwin);
	    if (errmsg != NULL)
		EMSG(_(errmsg));
	}
    }
#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)
	    {
		static char *w_arabic = N_("W17: Arabic requires UTF-8, do ':set encoding=utf-8'");

		msg_source(hl_attr(HLF_W));
		MSG_ATTR(_(w_arabic), hl_attr(HLF_W));
#ifdef FEAT_EVAL
		set_vim_var_string(VV_WARNINGMSG, (char_u *)_(w_arabic), -1);
#endif
	    }

# 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

#ifdef FEAT_TERMGUICOLORS
    /* 'termguicolors' */
    else if ((int *)varp == &p_tgc)
    {
# ifdef FEAT_GUI
	if (!gui.in_use && !gui.starting)
# endif
	    highlight_gui_started();
    }
#endif

    /*
     * End of handling side effects for bool options.
     */

    /* after handling side effects, call autocommand */

    options[opt_idx].flags |= P_WAS_SET;

#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
    if (!starting)
    {
	char_u buf_old[2], buf_new[2], buf_type[7];
	vim_snprintf((char *)buf_old, 2, "%d", old_value ? TRUE: FALSE);
	vim_snprintf((char *)buf_new, 2, "%d", value ? TRUE: FALSE);
	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
	reset_v_option_vars();
    }
#endif

    comp_col();			    /* in case 'ruler' or 'showcmd' changed */
    if (curwin->w_curswant != MAXCOL
		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
	curwin->w_set_curswant = TRUE;
    check_redraw(options[opt_idx].flags);

    return NULL;
}

Project: vim
File: option.c

get_option_value_strict(
    char_u	*name,
    long	*numval,
    char_u	**stringval,	    /* NULL when only obtaining attributes */
    int		opt_type,
    void	*from)
{
    int		opt_idx;
    char_u	*varp = NULL;
    struct vimoption *p;
    int		r = 0;

    opt_idx = findoption(name);
    if (opt_idx < 0)
	return 0;

    p = &(options[opt_idx]);

    /* Hidden option */
    if (p->var == NULL)
	return 0;

    if (p->flags & P_BOOL)
	r |= SOPT_BOOL;
    else if (p->flags & P_NUM)
	r |= SOPT_NUM;
    else if (p->flags & P_STRING)
	r |= SOPT_STRING;

    if (p->indir == PV_NONE)
    {
	if (opt_type == SREQ_GLOBAL)
	    r |= SOPT_GLOBAL;
	else
	    return 0; /* Did not request global-only option */
    }
    else
    {
	if (p->indir & PV_BOTH)
	    r |= SOPT_GLOBAL;
	else if (opt_type == SREQ_GLOBAL)
	    return 0; /* Requested global option */

	if (p->indir & PV_WIN)
	{
	    if (opt_type == SREQ_BUF)
		return 0; /* Did not request window-local option */
	    else
		r |= SOPT_WIN;
	}
	else if (p->indir & PV_BUF)
	{
	    if (opt_type == SREQ_WIN)
		return 0; /* Did not request buffer-local option */
	    else
		r |= SOPT_BUF;
	}
    }

    if (stringval == NULL)
	return r;

    if (opt_type == SREQ_GLOBAL)
	varp = p->var;
    else
    {
	if (opt_type == SREQ_BUF)
	{
	    /* Special case: 'modified' is b_changed, but we also want to
	     * consider it set when 'ff' or 'fenc' changed. */
	    if (p->indir == PV_MOD)
	    {
		*numval = bufIsChanged((buf_T *) from);
		varp = NULL;
	    }
#ifdef FEAT_CRYPT
	    else if (p->indir == PV_KEY)
	    {
		/* never return the value of the crypt key */
		*stringval = NULL;
		varp = NULL;
	    }
#endif
	    else
	    {
		aco_save_T	aco;
		aucmd_prepbuf(&aco, (buf_T *) from);
		varp = get_varp(p);
		aucmd_restbuf(&aco);
	    }
	}
	else if (opt_type == SREQ_WIN)
	{
	    win_T	*save_curwin;
	    save_curwin = curwin;
	    curwin = (win_T *) from;
	    curbuf = curwin->w_buffer;
	    varp = get_varp(p);
	    curwin = save_curwin;
	    curbuf = curwin->w_buffer;
	}
	if (varp == p->var)
	    return (r | SOPT_UNSET);
    }

    if (varp != NULL)
    {
	if (p->flags & P_STRING)
	    *stringval = vim_strsave(*(char_u **)(varp));
	else if (p->flags & P_NUM)
	    *numval = *(long *) varp;
	else
	    *numval = *(int *)varp;
    }

    return r;
}

Project: vim
File: option.c

clear_termoptions(void)
{
    /*
     * 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
    stoptermcap();			/* stop termcap mode */

    free_termoptions();
}

Project: vim
File: option.c

set_option_default(
    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;
    long_u	*flagsp;
    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)	    /* skip hidden option, nothing to do for it */
    {
	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, 0);
	    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 (options[opt_idx].indir == PV_SCROLL)
		win_comp_scroll(curwin);
	    else
	    {
		*(long *)varp = (long)(long_i)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, long_i is needed for
	     * MSVC */
	    *(int *)varp = (int)(long)(long_i)options[opt_idx].def_val[dvi];
#ifdef UNIX
	    /* 'modeline' defaults to off for root */
	    if (options[opt_idx].indir == PV_ML && getuid() == ROOT_UID)
		*(int *)varp = FALSE;
#endif
	    /* May also set global value for local option. */
	    if (both)
		*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
								*(int *)varp;
	}

	/* The default value is not insecure. */
	flagsp = insecure_flag(opt_idx, opt_flags);
	*flagsp = *flagsp & ~P_INSECURE;
    }

#ifdef FEAT_EVAL
    set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
#endif
}

Project: vim
File: option.c

set_term_option_alloced(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! */
}

Project: vim
File: option.c

optval_default(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)(long_i)p->def_val[dvi]);
    if (p->flags & P_BOOL)
			/* the cast to long is required for Manx C, long_i is
			 * needed for MSVC */
	return (*(int *)varp == (int)(long)(long_i)p->def_val[dvi]);
    /* P_STRING */
    return (STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0);
}

Project: vim
File: option.c

check_buf_options(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
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
    check_string_option(&buf->b_p_bexpr);
#endif
#if defined(FEAT_CRYPT)
    check_string_option(&buf->b_p_cm);
#endif
#if defined(FEAT_EVAL)
    check_string_option(&buf->b_p_fex);
#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_flp);
    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_TEXTOBJ
    check_string_option(&buf->b_p_qe);
#endif
#ifdef FEAT_SYN_HL
    check_string_option(&buf->b_p_syn);
    check_string_option(&buf->b_s.b_syn_isk);
#endif
#ifdef FEAT_SPELL
    check_string_option(&buf->b_s.b_p_spc);
    check_string_option(&buf->b_s.b_p_spf);
    check_string_option(&buf->b_s.b_p_spl);
#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);
    parse_cino(buf);
#endif
#ifdef FEAT_AUTOCMD
    check_string_option(&buf->b_p_ft);
#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_COMPL_FUNC
    check_string_option(&buf->b_p_cfu);
    check_string_option(&buf->b_p_ofu);
#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);
    check_string_option(&buf->b_p_tc);
#ifdef FEAT_INS_EXPAND
    check_string_option(&buf->b_p_dict);
    check_string_option(&buf->b_p_tsr);
#endif
#ifdef FEAT_LISP
    check_string_option(&buf->b_p_lw);
#endif
    check_string_option(&buf->b_p_bkc);
}

Project: vim
File: option.c

check_colorcolumn(win_T *wp)
{
    char_u	*s;
    int		col;
    int		count = 0;
    int		color_cols[256];
    int		i;
    int		j = 0;

    if (wp->w_buffer == NULL)
	return NULL;  /* buffer was closed */

    for (s = wp->w_p_cc; *s != NUL && count < 255;)
    {
	if (*s == '-' || *s == '+')
	{
	    /* -N and +N: add to 'textwidth' */
	    col = (*s == '-') ? -1 : 1;
	    ++s;
	    if (!VIM_ISDIGIT(*s))
		return e_invarg;
	    col = col * getdigits(&s);
	    if (wp->w_buffer->b_p_tw == 0)
		goto skip;  /* 'textwidth' not set, skip this item */
	    col += wp->w_buffer->b_p_tw;
	    if (col < 0)
		goto skip;
	}
	else if (VIM_ISDIGIT(*s))
	    col = getdigits(&s);
	else
	    return e_invarg;
	color_cols[count++] = col - 1;  /* 1-based to 0-based */
skip:
	if (*s == NUL)
	    break;
	if (*s != ',')
	    return e_invarg;
	if (*++s == NUL)
	    return e_invarg;  /* illegal trailing comma as in "set cc=80," */
    }

    vim_free(wp->w_p_cc_cols);
    if (count == 0)
	wp->w_p_cc_cols = NULL;
    else
    {
	wp->w_p_cc_cols = (int *)alloc((unsigned)sizeof(int) * (count + 1));
	if (wp->w_p_cc_cols != NULL)
	{
	    /* sort the columns for faster usage on screen redraw inside
	     * win_line() */
	    qsort(color_cols, count, sizeof(int), int_cmp);

	    for (i = 0; i < count; ++i)
		/* skip duplicates */
		if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i])
		    wp->w_p_cc_cols[j++] = color_cols[i];
	    wp->w_p_cc_cols[j] = -1;  /* end marker */
	}
    }

    return NULL;  /* no error */
}

Project: vim
File: option.c

free_termoptions(void)
{
    struct vimoption   *p;

    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();
}

Project: vim
File: option.c

set_init_2(void)
{
    int		idx;

    /*
     * 'scroll' defaults to half the window height. Note that this default is
     * wrong when the window height changes.
     */
    set_number_default("scroll", (long)((long_u)Rows >> 1));
    idx = findoption((char_u *)"scroll");
    if (idx >= 0 && !(options[idx].flags & P_WAS_SET))
	set_option_default(idx, OPT_LOCAL, p_cp);
    comp_col();

    /*
     * 'window' is only for backwards compatibility with Vi.
     * Default is Rows - 1.
     */
    if (!option_was_set((char_u *)"window"))
	p_window = Rows - 1;
    set_number_default("window", Rows - 1);

    /* For DOS console the default is always black. */
#if !((defined(WIN3264)) && !defined(FEAT_GUI))
    /*
     * 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.
     */
    idx = findoption((char_u *)"bg");
    if (idx >= 0 && !(options[idx].flags & P_WAS_SET)
						 && *term_bg_default() == 'd')
    {
	set_string_option_direct(NULL, idx, (char_u *)"dark", OPT_FREE, 0);
	/* don't mark it as set, when starting the GUI it may be
	 * changed again */
	options[idx].flags &= ~P_WAS_SET;
    }
#endif

#ifdef CURSOR_SHAPE
    parse_shape_opt(SHAPE_CURSOR); /* set cursor shapes from 'guicursor' */
#endif
#ifdef FEAT_MOUSESHAPE
    parse_shape_opt(SHAPE_MOUSE);  /* set mouse shapes from 'mouseshape' */
#endif
#ifdef FEAT_PRINTER
    (void)parse_printoptions();	    /* parse 'printoptions' default value */
#endif
}

Project: vim
File: option.c

put_setstring(
    FILE	*fd,
    char	*cmd,
    char	*name,
    char_u	**valuep,
    int		expand)
{
    char_u	*s;
    char_u	*buf;

    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 (put_escstr(fd, str2special(&s, FALSE), 2) == FAIL)
		    return FAIL;
	}
	else if (expand)
	{
	    buf = alloc(MAXPATHL);
	    if (buf == NULL)
		return FAIL;
	    home_replace(NULL, *valuep, buf, MAXPATHL, FALSE);
	    if (put_escstr(fd, buf, 2) == FAIL)
	    {
		vim_free(buf);
		return FAIL;
	    }
	    vim_free(buf);
	}
	else if (put_escstr(fd, *valuep, 2) == FAIL)
	    return FAIL;
    }
    if (put_eol(fd) < 0)
	return FAIL;
    return OK;
}

Project: vim
File: option.c

static void redraw_titles(void)
{
    need_maketitle = TRUE;
# ifdef FEAT_WINDOWS
    redraw_tabline = TRUE;
# endif
}

Project: vim
File: option.c

set_num_option(
    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 */
    size_t	errbuflen,		/* length of "errbuf" */
    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;

    /* Disallow changing some options from secure mode. */
    if ((secure
#ifdef HAVE_SANDBOX
		|| sandbox != 0
#endif
		) && (options[opt_idx].flags & P_SECURE))
	return e_secure;

    *pp = value;
#ifdef FEAT_EVAL
    /* Remember where the option was set. */
    set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
#endif
#ifdef FEAT_GUI
    need_mouse_correct = TRUE;
#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_WINDOWS
    else 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);
    }

    /* (re)set tab page line */
    else if (pp == &p_stal)
    {
	shell_new_rows();	/* recompute window positions and heights */
    }
#endif

#ifdef FEAT_GUI
    else if (pp == &p_linespace)
    {
	/* Recompute gui.char_height and resize the Vim window to keep the
	 * same number of lines. */
	if (gui.in_use && gui_mch_adjust_charheight() == OK)
	    gui_set_shellsize(FALSE, FALSE, RESIZE_VERT);
    }
#endif

#ifdef FEAT_FOLDING
    /* 'foldlevel' */
    else if (pp == &curwin->w_p_fdl)
    {
	if (curwin->w_p_fdl < 0)
	    curwin->w_p_fdl = 0;
	newFoldLevel();
    }

    /* 'foldminlines' */
    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;
	}
    }
#endif /* FEAT_FOLDING */

#if defined(FEAT_FOLDING) || defined(FEAT_CINDENT)
    /* 'shiftwidth' or 'tabstop' */
    else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts)
    {
# ifdef FEAT_FOLDING
	if (foldmethodIsIndent(curwin))
	    foldUpdateAll(curwin);
# endif
# ifdef FEAT_CINDENT
	/* When 'shiftwidth' changes, or it's zero and 'tabstop' changes:
	 * parse 'cinoptions'. */
	if (pp == &curbuf->b_p_sw || curbuf->b_p_sw == 0)
	    parse_cino(curbuf);
# endif
    }
#endif

#ifdef FEAT_MBYTE
    /* 'maxcombine' */
    else if (pp == &p_mco)
    {
	if (p_mco > MAX_MCO)
	    p_mco = MAX_MCO;
	else if (p_mco < 0)
	    p_mco = 0;
	screenclear();	    /* will re-allocate the screen */
    }
#endif

    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 == &p_window)
    {
	if (p_window < 1)
	    p_window = 1;
	else if (p_window >= Rows)
	    p_window = Rows - 1;
    }

    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;
	}
	if (p_ch > Rows - min_rows() + 1)
	    p_ch = Rows - min_rows() + 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();
    }

    /* 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();
    }
#ifdef FEAT_CONCEAL
    else if (pp == &curwin->w_p_cole)
    {
	if (curwin->w_p_cole < 0)
	{
	    errmsg = e_positive;
	    curwin->w_p_cole = 0;
	}
	else if (curwin->w_p_cole > 3)
	{
	    errmsg = e_invarg;
	    curwin->w_p_cole = 3;
	}
    }
#endif
#ifdef MZSCHEME_GUI_THREADS
    else if (pp == &p_mzq)
	mzvim_reset_timer();
#endif

    /* 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(TRUE);
	p_ul = value;
    }
    else if (pp == &curbuf->b_p_ul)
    {
	/* use the old value, otherwise u_sync() may not work properly */
	curbuf->b_p_ul = old_value;
	u_sync(TRUE);
	curbuf->b_p_ul = value;
    }

#ifdef FEAT_LINEBREAK
    /* 'numberwidth' must be positive */
    else if (pp == &curwin->w_p_nuw)
    {
	if (curwin->w_p_nuw < 1)
	{
	    errmsg = e_positive;
	    curwin->w_p_nuw = 1;
	}
	if (curwin->w_p_nuw > 10)
	{
	    errmsg = e_invarg;
	    curwin->w_p_nuw = 10;
	}
	curwin->w_nrwidth_line_count = 0; /* trigger a redraw */
    }
#endif

    else if (pp == &curbuf->b_p_tw)
    {
	if (curbuf->b_p_tw < 0)
	{
	    errmsg = e_positive;
	    curbuf->b_p_tw = 0;
	}
#ifdef FEAT_SYN_HL
# ifdef FEAT_WINDOWS
	{
	    win_T	*wp;
	    tabpage_T	*tp;

	    FOR_ALL_TAB_WINDOWS(tp, wp)
		check_colorcolumn(wp);
	}
# else
	check_colorcolumn(curwin);
# endif
#endif
    }

    /*
     * Check the bounds for numeric options here
     */
    if (Rows < min_rows() && full_screen)
    {
	if (errbuf != NULL)
	{
	    vim_snprintf((char *)errbuf, errbuflen,
			       _("E593: Need at least %d lines"), min_rows());
	    errmsg = errbuf;
	}
	Rows = min_rows();
    }
    if (Columns < MIN_COLUMNS && full_screen)
    {
	if (errbuf != NULL)
	{
	    vim_snprintf((char *)errbuf, errbuflen,
			    _("E594: Need at least %d columns"), MIN_COLUMNS);
	    errmsg = errbuf;
	}
	Columns = MIN_COLUMNS;
    }
    limit_screen_size();

    /*
     * 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 (p_window >= Rows || !option_was_set((char_u *)"window"))
	    p_window = Rows - 1;
    }

    if (curbuf->b_p_ts <= 0)
    {
	errmsg = e_positive;
	curbuf->b_p_ts = 8;
    }
    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_hi < 0)
    {
	errmsg = e_positive;
	p_hi = 0;
    }
    else if (p_hi > 10000)
    {
	errmsg = e_invarg;
	p_hi = 10000;
    }
    if (p_re < 0 || p_re > 2)
    {
	errmsg = e_invarg;
	p_re = 0;
    }
    if (p_report < 0)
    {
	errmsg = e_positive;
	p_report = 1;
    }
    if ((p_sj < -100 || 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;

#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
    if (!starting && errmsg == NULL)
    {
	char_u buf_old[11], buf_new[11], buf_type[7];
	vim_snprintf((char *)buf_old, 10, "%ld", old_value);
	vim_snprintf((char *)buf_new, 10, "%ld", value);
	vim_snprintf((char *)buf_type, 7, "%s", (opt_flags & OPT_LOCAL) ? "local" : "global");
	set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
	set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
	set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
	apply_autocmds(EVENT_OPTIONSET, (char_u *) options[opt_idx].fullname, NULL, FALSE, NULL);
	reset_v_option_vars();
    }
#endif

    comp_col();			    /* in case 'columns' or 'ls' changed */
    if (curwin->w_curswant != MAXCOL
		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
	curwin->w_set_curswant = TRUE;
    check_redraw(options[opt_idx].flags);

    return errmsg;
}

Project: vim
File: option.c

paste_option_changed(void)
{
    static int	old_p_paste = FALSE;
    static int	save_sm = 0;
    static int	save_sta = 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_ALL_BUFFERS(buf)
	    {
		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;
		buf->b_p_et_nopaste = buf->b_p_et;
	    }

	    /* save global options */
	    save_sm = p_sm;
	    save_sta = p_sta;
#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_ai_nopaste = p_ai;
	    p_et_nopaste = p_et;
	    p_sts_nopaste = p_sts;
	    p_tw_nopaste = p_tw;
	    p_wm_nopaste = p_wm;
	}

	/*
	 * Always set the option values, also when 'paste' is set when it is
	 * already on.
	 */
	/* set options for each buffer */
	FOR_ALL_BUFFERS(buf)
	{
	    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 */
	    buf->b_p_et = 0;	    /* no expandtab */
	}

	/* set global options */
	p_sm = 0;		    /* no showmatch */
	p_sta = 0;		    /* no smarttab */
#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_ALL_BUFFERS(buf)
	{
	    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;
	    buf->b_p_et = buf->b_p_et_nopaste;
	}

	/* restore global options */
	p_sm = save_sm;
	p_sta = save_sta;
#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_ai = p_ai_nopaste;
	p_et = p_et_nopaste;
	p_sts = p_sts_nopaste;
	p_tw = p_tw_nopaste;
	p_wm = p_wm_nopaste;
    }

    old_p_paste = p_paste;
}

Project: vim
File: option.c

find_mps_values(
    int	    *initc,
    int	    *findc,
    int	    *backwards,
    int	    switchit)
{
    char_u	*ptr;

    ptr = curbuf->b_p_mps;
    while (*ptr != NUL)
    {
#ifdef FEAT_MBYTE
	if (has_mbyte)
	{
	    char_u *prev;

	    if (mb_ptr2char(ptr) == *initc)
	    {
		if (switchit)
		{
		    *findc = *initc;
		    *initc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
		    *backwards = TRUE;
		}
		else
		{
		    *findc = mb_ptr2char(ptr + mb_ptr2len(ptr) + 1);
		    *backwards = FALSE;
		}
		return;
	    }
	    prev = ptr;
	    ptr += mb_ptr2len(ptr) + 1;
	    if (mb_ptr2char(ptr) == *initc)
	    {
		if (switchit)
		{
		    *findc = *initc;
		    *initc = mb_ptr2char(prev);
		    *backwards = FALSE;
		}
		else
		{
		    *findc = mb_ptr2char(prev);
		    *backwards = TRUE;
		}
		return;
	    }
	    ptr += mb_ptr2len(ptr);
	}
	else
#endif
	{
	    if (*ptr == *initc)
	    {
		if (switchit)
		{
		    *backwards = TRUE;
		    *findc = *initc;
		    *initc = ptr[2];
		}
		else
		{
		    *backwards = FALSE;
		    *findc = ptr[2];
		}
		return;
	    }
	    ptr += 2;
	    if (*ptr == *initc)
	    {
		if (switchit)
		{
		    *backwards = FALSE;
		    *findc = *initc;
		    *initc = ptr[-2];
		}
		else
		{
		    *backwards = TRUE;
		    *findc =  ptr[-2];
		}
		return;
	    }
	    ++ptr;
	}
	if (*ptr == ',')
	    ++ptr;
    }
}

Project: vim
File: option.c

langmap_set_entry(int from, int to)
{
    langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
    int		    a = 0;
    int		    b = langmap_mapga.ga_len;

    /* Do a binary search for an existing entry. */
    while (a != b)
    {
	int i = (a + b) / 2;
	int d = entries[i].from - from;

	if (d == 0)
	{
	    entries[i].to = to;
	    return;
	}
	if (d < 0)
	    a = i + 1;
	else
	    b = i;
    }

    if (ga_grow(&langmap_mapga, 1) != OK)
	return;  /* out of memory */

    /* insert new entry at position "a" */
    entries = (langmap_entry_T *)(langmap_mapga.ga_data) + a;
    mch_memmove(entries + 1, entries,
			(langmap_mapga.ga_len - a) * sizeof(langmap_entry_T));
    ++langmap_mapga.ga_len;
    entries[0].from = from;
    entries[0].to = to;
}

Project: vim
File: option.c

set_init_3(void)
{
#if defined(UNIX) || 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");
    if (idx_srr < 0)
	do_srr = FALSE;
    else
	do_srr = !(options[idx_srr].flags & P_WAS_SET);
# ifdef FEAT_QUICKFIX
    idx_sp = findoption((char_u *)"sp");
    if (idx_sp < 0)
	do_sp = FALSE;
    else
	do_sp = !(options[idx_sp].flags & P_WAS_SET);
# endif
    p = get_isolated_shell_name();
    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(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
	    /* Always use bourne shell style redirection if we reach this */
	    if (       fnamecmp(p, "sh") == 0
		    || fnamecmp(p, "ksh") == 0
		    || fnamecmp(p, "mksh") == 0
		    || fnamecmp(p, "pdksh") == 0
		    || fnamecmp(p, "zsh") == 0
		    || fnamecmp(p, "zsh-beta") == 0
		    || fnamecmp(p, "bash") == 0
		    || fnamecmp(p, "fish") == 0
# ifdef WIN3264
		    || fnamecmp(p, "cmd") == 0
		    || fnamecmp(p, "sh.exe") == 0
		    || fnamecmp(p, "ksh.exe") == 0
		    || fnamecmp(p, "mksh.exe") == 0
		    || fnamecmp(p, "pdksh.exe") == 0
		    || fnamecmp(p, "zsh.exe") == 0
		    || fnamecmp(p, "zsh-beta.exe") == 0
		    || fnamecmp(p, "bash.exe") == 0
		    || fnamecmp(p, "cmd.exe") == 0
# 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(WIN3264)
    /*
     * Set 'shellcmdflag', 'shellxquote', 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 "\"".  And for Win32 we need to set p_sxq instead.
     */
    if (strstr((char *)gettail(p_sh), "sh") != NULL)
    {
	int	idx3;

	idx3 = findoption((char_u *)"shcf");
	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
	{
	    p_shcf = (char_u *)"-c";
	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
	}

# ifdef WIN3264
	/* Somehow Win32 requires the quotes around the redirection too */
	idx3 = findoption((char_u *)"sxq");
	if (idx3 >= 0 && !(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 (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
	{
	    p_shq = (char_u *)"\"";
	    options[idx3].def_val[VI_DEFAULT] = p_shq;
	}
# endif
    }
    else if (strstr((char *)gettail(p_sh), "cmd.exe") != NULL)
    {
	int	idx3;

	/*
	 * cmd.exe on Windows will strip the first and last double quote given
	 * on the command line, e.g. most of the time things like:
	 *   cmd /c "my path/to/echo" "my args to echo"
	 * become:
	 *   my path/to/echo" "my args to echo
	 * when executed.
	 *
	 * To avoid this, set shellxquote to surround the command in
	 * parenthesis.  This appears to make most commands work, without
	 * breaking commands that worked previously, such as
	 * '"path with spaces/cmd" "a&b"'.
	 */
	idx3 = findoption((char_u *)"sxq");
	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
	{
	    p_sxq = (char_u *)"(";
	    options[idx3].def_val[VI_DEFAULT] = p_sxq;
	}

	idx3 = findoption((char_u *)"shcf");
	if (idx3 >= 0 && !(options[idx3].flags & P_WAS_SET))
	{
	    p_shcf = (char_u *)"/c";
	    options[idx3].def_val[VI_DEFAULT] = p_shcf;
	}
    }
#endif

    if (bufempty())
    {
	int idx_ffs = findoption((char_u *)"ffs");

	/* Apply the first entry of 'fileformats' to the initial buffer. */
	if (idx_ffs >= 0 && (options[idx_ffs].flags & P_WAS_SET))
	    set_fileformat(default_fileformat(), OPT_LOCAL);
    }

#ifdef FEAT_TITLE
    set_title_defaults();
#endif
}

Project: vim
File: option.c

do_set(
    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;
    varnumber_T	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);
	did_show = TRUE;
	goto theend;
    }

    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])
						&& !(opt_flags & OPT_MODELINE))
	{
	    /*
	     * ":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);
		didset_options();
		didset_options2();
		redraw_all_later(CLEAR);
	    }
	    else
	    {
		showoptions(1, opt_flags);
		did_show = TRUE;
	    }
	}
	else if (STRNCMP(arg, "termcap", 7) == 0 && !(opt_flags & OPT_MODELINE))
	{
	    showoptions(2, opt_flags);
	    show_termcodes();
	    did_show = TRUE;
	    arg += 7;
	}
	else
	{
	    prefix = 1;
	    if (STRNCMP(arg, "no", 2) == 0 && STRNCMP(arg, "novice", 6) != 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);
		}
	    }

	    /* Skip all options that are not window-local (used when showing
	     * an already loaded buffer in a window). */
	    if ((opt_flags & OPT_WINONLY)
			  && (opt_idx < 0 || options[opt_idx].var != VAR_WIN))
		goto skip;

	    /* Skip all options that are window-local (used for :vimgrep). */
	    if ((opt_flags & OPT_NOWIN) && opt_idx >= 0
					   && options[opt_idx].var == VAR_WIN)
		goto skip;

	    /* Disallow changing some options from modelines. */
	    if (opt_flags & OPT_MODELINE)
	    {
		if (flags & (P_SECURE | P_NO_ML))
		{
		    errmsg = (char_u *)_("E520: Not allowed in a modeline");
		    goto skip;
		}
#ifdef FEAT_DIFF
		/* In diff mode some options are overruled.  This avoids that
		 * 'foldmethod' becomes "marker" instead of "diff" and that
		 * "wrap" gets set. */
		if (curwin->w_p_diff
			&& opt_idx >= 0  /* shut up coverity warning */
			&& (options[opt_idx].indir == PV_FDM
			    || options[opt_idx].indir == PV_WRAP))
		    goto skip;
#endif
	    }

#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 ':' for hystorical reasons (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)
		    {
			/* Mention where the option was last set. */
			if (varp == options[opt_idx].var)
			    last_set_msg(options[opt_idx].scriptID);
			else if ((int)options[opt_idx].indir & PV_WIN)
			    last_set_msg(curwin->w_p_scriptID[
				      (int)options[opt_idx].indir & PV_MASK]);
			else if ((int)options[opt_idx].indir & PV_BUF)
			    last_set_msg(curbuf->b_p_scriptID[
				      (int)options[opt_idx].indir & PV_MASK]);
		    }
#endif
		}
		else
		{
		    char_u	    *p;

		    p = find_termcode(key_name);
		    if (p == NULL)
		    {
			errmsg = (char_u *)N_("E846: Key code not set");
			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)(long_i)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)(long_i)options[opt_idx].def_val[
						((flags & P_VI_DEF) || cp_val)
						 ?  VI_DEFAULT : VIM_DEFAULT];
			else if (nextchar == '<')
			{
			    /* For 'undolevels' NO_LOCAL_UNDOLEVEL means to
			     * use the global value. */
			    if ((long *)varp == &curbuf->b_p_ul
						    && opt_flags == OPT_LOCAL)
				value = NO_LOCAL_UNDOLEVEL;
			    else
				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;
			    }
			}
			else if (*arg == '-' || VIM_ISDIGIT(*arg))
			{
			    /* Allow negative (for 'undolevels'), octal and
			     * hex numbers. */
			    vim_str2nr(arg, NULL, &i, STR2NR_ALL,
							     &value, NULL, 0);
			    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, sizeof(errbuf), opt_flags);
		    }
		    else if (opt_idx >= 0)		    /* string */
		    {
			char_u	    *save_arg = NULL;
			char_u	    *s = NULL;
			char_u	    *oldval = NULL;	/* previous value if *varp */
			char_u	    *newval;
			char_u	    *origval = NULL;
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
			char_u	    *saved_origval = NULL;
#endif
			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
				    newval = term_bg_default();
			    }

			    /* 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 'backspace' number to string, for
			     * adding, prepending and removing string.
			     */
			    else if (varp == (char_u *)&p_bs
					 && VIM_ISDIGIT(**(char_u **)varp))
			    {
				i = getdigits((char_u **)varp);
				switch (i)
				{
				    case 0:
					*(char_u **)varp = empty_option;
					break;
				    case 1:
					*(char_u **)varp = vim_strsave(
						      (char_u *)"indent,eol");
					break;
				    case 2:
					*(char_u **)varp = vim_strsave(
						(char_u *)"indent,eol,start");
					break;
				}
				vim_free(oldval);
				oldval = *(char_u **)varp;
			    }
			    /*
			     * 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)(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 backslashes.  Only a comma with an
				     * even number of backslashes or a single
				     * backslash preceded by a comma before it
				     * is recognized as a separator */
				    if ((s > origval + 1
						&& s[-1] == '\\'
						&& s[-2] != ',')
					    || (s == origval + 1
						&& 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);
				    /* strip a trailing comma, would get 2 */
				    if (comma && i > 1
					  && (flags & P_ONECOMMA) == P_ONECOMMA
					  && origval[i - 1] == ','
					  && origval[i - 2] != '\\')
					i--;
				    mch_memmove(newval + i + comma, newval,
							  STRLEN(newval) + 1);
				    mch_memmove(newval, origval, (size_t)i);
				}
				else
				{
				    i = (int)STRLEN(newval);
				    STRMOVE(newval + i + comma, origval);
				}
				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;
					}
				    }
				    STRMOVE(newval + (s - origval), s + i);
				}
			    }

			    if (flags & P_FLAGLIST)
			    {
				/* Remove flags that appear twice. */
				for (s = newval; *s; ++s)
				{
				    /* if options have P_FLAGLIST and
				     * P_ONECOMMA such as 'whichwrap' */
				    if (flags & P_ONECOMMA)
				    {
					if (*s != ',' && *(s + 1) == ','
					      && vim_strchr(s + 2, *s) != NULL)
					{
					    /* Remove the duplicated value and
					     * the next comma. */
					    STRMOVE(s, s + 2);
					    s -= 2;
					}
				    }
				    else
				    {
					if ((!(flags & P_COMMA) || *s != ',')
					      && vim_strchr(s + 1, *s) != NULL)
					{
					    STRMOVE(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;

#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
			if (!starting
# ifdef FEAT_CRYPT
				&& options[opt_idx].indir != PV_KEY
# endif
							   && origval != NULL)
			    /* origval may be freed by
			     * did_set_string_option(), make a copy. */
			    saved_origval = vim_strsave(origval);
#endif

			/* 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)
			{
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
			    vim_free(saved_origval);
#endif
			    goto skip;
			}
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
			if (saved_origval != NULL)
			{
			    char_u buf_type[7];

			    sprintf((char *)buf_type, "%s",
				(opt_flags & OPT_LOCAL) ? "local" : "global");
			    set_vim_var_string(VV_OPTION_NEW,
							*(char_u **)varp, -1);
			    set_vim_var_string(VV_OPTION_OLD, saved_origval, -1);
			    set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
			    apply_autocmds(EVENT_OPTIONSET,
					  (char_u *)options[opt_idx].fullname,
				NULL, FALSE, NULL);
			    reset_v_option_vars();
			    vim_free(saved_origval);
			}
#endif

		    }
		    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)
		    did_set_option(opt_idx, opt_flags,
					 !prepending && !adding && !removing);
	    }

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)
	{
	    vim_strncpy(IObuff, (char_u *)_(errmsg), IOSIZE - 1);
	    i = (int)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);
    }

theend:
    if (silent_mode && did_show)
    {
	/* After displaying option values in silent mode. */
	silent_mode = FALSE;
	info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */
	msg_putchar('\n');
	cursor_on();		/* msg_start() switches it off */
	out_flush();
	silent_mode = TRUE;
	info_message = FALSE;	/* use mch_msg(), not mch_errmsg() */
    }

    return OK;
}

Project: vim
File: option.c

findoption(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;
}

Project: vim
File: option.c

option_was_set(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;
}

Project: vim
File: option.c

comp_col(void)
{
#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
}

Project: vim
File: option.c

set_string_option_direct(
    char_u	*name,
    int		opt_idx,
    char_u	*val,
    int		opt_flags,	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
    int		set_sid UNUSED)
{
    char_u	*s;
    char_u	**varp;
    int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
    int		idx = opt_idx;

    if (idx == -1)		/* use name */
    {
	idx = findoption(name);
	if (idx < 0)	/* not found (should not happen) */
	{
	    EMSG2(_(e_intern2), "set_string_option_direct()");
	    EMSG2(_("For option %s"), name);
	    return;
	}
    }

    if (options[idx].var == NULL)	/* can't set hidden option */
	return;

    s = vim_strsave(val);
    if (s != NULL)
    {
	varp = (char_u **)get_varp_scope(&(options[idx]),
					       both ? OPT_LOCAL : opt_flags);
	if ((opt_flags & OPT_FREE) && (options[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(idx, varp);

	options[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[idx].indir & PV_BOTH) && both)
	{
	    free_string_option(*varp);
	    *varp = empty_option;
	}
# ifdef FEAT_EVAL
	if (set_sid != SID_NONE)
	    set_option_scriptID_idx(idx, opt_flags,
					set_sid == 0 ? current_SID : set_sid);
# endif
    }
}

Project: vim
File: option.c

put_setnum(
    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;
}

Project: vim
File: option.c

did_set_title(
    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);
	}
    }
}

Project: vim
File: option.c

showoneopt(
    struct vimoption	*p,
    int			opt_flags)	/* OPT_LOCAL or OPT_GLOBAL */
{
    char_u	*varp;
    int		save_silent = silent_mode;

    silent_mode = FALSE;
    info_message = TRUE;	/* use mch_msg(), not mch_errmsg() */

    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);
    }

    silent_mode = save_silent;
    info_message = FALSE;
}

Project: vim
File: option.c

didset_options(void)
{
    /* initialize the table for 'iskeyword' et.al. */
    (void)init_chartab();

#ifdef FEAT_MBYTE
    (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE);
#endif
    (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, TRUE);
    (void)opt_strings_flags(p_bo, p_bo_values, &bo_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);
    (void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, FALSE);
#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
#ifdef FEAT_SPELL
    (void)spell_check_msm();
    (void)spell_check_sps();
    (void)compile_cap_prog(curwin->w_s);
    (void)did_set_spell_option(TRUE);
#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)
    (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE);
#endif
#ifdef FEAT_CMDWIN
    /* set cedit_key */
    (void)check_cedit();
#endif
#ifdef FEAT_LINEBREAK
    briopt_check(curwin);
#endif
#ifdef FEAT_LINEBREAK
    /* initialize the table for 'breakat'. */
    fill_breakat_flags();
#endif

}

Project: vim
File: option.c

showoptions(
    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);
}

Project: vim
File: option.c

briopt_check(win_T *wp)
{
    char_u	*p;
    int		bri_shift = 0;
    long	bri_min = 20;
    int		bri_sbr = FALSE;

    p = wp->w_p_briopt;
    while (*p != NUL)
    {
	if (STRNCMP(p, "shift:", 6) == 0
		 && ((p[6] == '-' && VIM_ISDIGIT(p[7])) || VIM_ISDIGIT(p[6])))
	{
	    p += 6;
	    bri_shift = getdigits(&p);
	}
	else if (STRNCMP(p, "min:", 4) == 0 && VIM_ISDIGIT(p[4]))
	{
	    p += 4;
	    bri_min = getdigits(&p);
	}
	else if (STRNCMP(p, "sbr", 3) == 0)
	{
	    p += 3;
	    bri_sbr = TRUE;
	}
	if (*p != ',' && *p != NUL)
	    return FAIL;
	if (*p == ',')
	    ++p;
    }

    wp->w_p_brishift = bri_shift;
    wp->w_p_brimin   = bri_min;
    wp->w_p_brisbr   = bri_sbr;

    return OK;
}

Project: vim
File: option.c

get_varp(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 PV_EP:	return *curbuf->b_p_ep != NUL
				    ? (char_u *)&curbuf->b_p_ep : p->var;
	case PV_KP:	return *curbuf->b_p_kp != NUL
				    ? (char_u *)&curbuf->b_p_kp : p->var;
	case PV_PATH:	return *curbuf->b_p_path != NUL
				    ? (char_u *)&(curbuf->b_p_path) : p->var;
	case PV_AR:	return curbuf->b_p_ar >= 0
				    ? (char_u *)&(curbuf->b_p_ar) : p->var;
	case PV_TAGS:	return *curbuf->b_p_tags != NUL
				    ? (char_u *)&(curbuf->b_p_tags) : p->var;
	case PV_TC:	return *curbuf->b_p_tc != NUL
				    ? (char_u *)&(curbuf->b_p_tc) : p->var;
	case PV_BKC:	return *curbuf->b_p_bkc != NUL
				    ? (char_u *)&(curbuf->b_p_bkc) : p->var;
#ifdef FEAT_FIND_ID
	case PV_DEF:	return *curbuf->b_p_def != NUL
				    ? (char_u *)&(curbuf->b_p_def) : p->var;
	case PV_INC:	return *curbuf->b_p_inc != NUL
				    ? (char_u *)&(curbuf->b_p_inc) : p->var;
#endif
#ifdef FEAT_INS_EXPAND
	case PV_DICT:	return *curbuf->b_p_dict != NUL
				    ? (char_u *)&(curbuf->b_p_dict) : p->var;
	case PV_TSR:	return *curbuf->b_p_tsr != NUL
				    ? (char_u *)&(curbuf->b_p_tsr) : p->var;
#endif
#ifdef FEAT_QUICKFIX
	case PV_EFM:	return *curbuf->b_p_efm != NUL
				    ? (char_u *)&(curbuf->b_p_efm) : p->var;
	case PV_GP:	return *curbuf->b_p_gp != NUL
				    ? (char_u *)&(curbuf->b_p_gp) : p->var;
	case PV_MP:	return *curbuf->b_p_mp != NUL
				    ? (char_u *)&(curbuf->b_p_mp) : p->var;
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
	case PV_BEXPR:	return *curbuf->b_p_bexpr != NUL
				    ? (char_u *)&(curbuf->b_p_bexpr) : p->var;
#endif
#if defined(FEAT_CRYPT)
	case PV_CM:	return *curbuf->b_p_cm != NUL
				    ? (char_u *)&(curbuf->b_p_cm) : p->var;
#endif
#ifdef FEAT_STL_OPT
	case PV_STL:	return *curwin->w_p_stl != NUL
				    ? (char_u *)&(curwin->w_p_stl) : p->var;
#endif
	case PV_UL:	return curbuf->b_p_ul != NO_LOCAL_UNDOLEVEL
				    ? (char_u *)&(curbuf->b_p_ul) : p->var;
#ifdef FEAT_LISP
	case PV_LW:	return *curbuf->b_p_lw != NUL
				    ? (char_u *)&(curbuf->b_p_lw) : 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_SPELL
	case PV_SPELL:	return (char_u *)&(curwin->w_p_spell);
#endif
#ifdef FEAT_SYN_HL
	case PV_CUC:	return (char_u *)&(curwin->w_p_cuc);
	case PV_CUL:	return (char_u *)&(curwin->w_p_cul);
	case PV_CC:	return (char_u *)&(curwin->w_p_cc);
#endif
#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);
	case PV_RNU:	return (char_u *)&(curwin->w_p_rnu);
#ifdef FEAT_LINEBREAK
	case PV_NUW:	return (char_u *)&(curwin->w_p_nuw);
#endif
#ifdef FEAT_WINDOWS
	case PV_WFH:	return (char_u *)&(curwin->w_p_wfh);
	case PV_WFW:	return (char_u *)&(curwin->w_p_wfw);
#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);
	case PV_BRI:	return (char_u *)&(curwin->w_p_bri);
	case PV_BRIOPT: return (char_u *)&(curwin->w_p_briopt);
#endif
#ifdef FEAT_SCROLLBIND
	case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
#endif
#ifdef FEAT_CURSORBIND
	case PV_CRBIND: return (char_u *)&(curwin->w_p_crb);
#endif
#ifdef FEAT_CONCEAL
	case PV_COCU:    return (char_u *)&(curwin->w_p_cocu);
	case PV_COLE:    return (char_u *)&(curwin->w_p_cole);
#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
#ifdef FEAT_COMPL_FUNC
	case PV_CFU:	return (char_u *)&(curbuf->b_p_cfu);
	case PV_OFU:	return (char_u *)&(curbuf->b_p_ofu);
#endif
	case PV_EOL:	return (char_u *)&(curbuf->b_p_eol);
	case PV_FIXEOL:	return (char_u *)&(curbuf->b_p_fixeol);
	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_FLP:	return (char_u *)&(curbuf->b_p_flp);
	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_EVAL
	case PV_FEX:	return (char_u *)&(curbuf->b_p_fex);
#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);
	case PV_PI:	return (char_u *)&(curbuf->b_p_pi);
#ifdef FEAT_TEXTOBJ
	case PV_QE:	return (char_u *)&(curbuf->b_p_qe);
#endif
	case PV_RO:	return (char_u *)&(curbuf->b_p_ro);
#ifdef FEAT_SMARTINDENT
	case PV_SI:	return (char_u *)&(curbuf->b_p_si);
#endif
	case PV_SN:	return (char_u *)&(curbuf->b_p_sn);
	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_SMC:	return (char_u *)&(curbuf->b_p_smc);
	case PV_SYN:	return (char_u *)&(curbuf->b_p_syn);
#endif
#ifdef FEAT_SPELL
	case PV_SPC:	return (char_u *)&(curwin->w_s->b_p_spc);
	case PV_SPF:	return (char_u *)&(curwin->w_s->b_p_spf);
	case PV_SPL:	return (char_u *)&(curwin->w_s->b_p_spl);
#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);
#ifdef FEAT_PERSISTENT_UNDO
	case PV_UDF:	return (char_u *)&(curbuf->b_p_udf);
#endif
	case PV_WM:	return (char_u *)&(curbuf->b_p_wm);
#ifdef FEAT_KEYMAP
	case PV_KMAP:	return (char_u *)&(curbuf->b_p_keymap);
#endif
#ifdef FEAT_SIGNS
	case PV_SCL:	return (char_u *)&(curwin->w_p_scl);
#endif
	default:	EMSG(_("E356: get_varp ERROR"));
    }
    /* always return a valid pointer to avoid a crash! */
    return (char_u *)&(curbuf->b_p_wm);
}

Project: vim
File: option.c

win_copy_options(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
#if defined(FEAT_LINEBREAK)
    briopt_check(wp_to);
#endif
}

Project: vim
File: option.c

copy_winopt(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;
    to->wo_rnu = from->wo_rnu;
#ifdef FEAT_LINEBREAK
    to->wo_nuw = from->wo_nuw;
#endif
#ifdef FEAT_RIGHTLEFT
    to->wo_rl  = from->wo_rl;
    to->wo_rlc = vim_strsave(from->wo_rlc);
#endif
#ifdef FEAT_STL_OPT
    to->wo_stl = vim_strsave(from->wo_stl);
#endif
    to->wo_wrap = from->wo_wrap;
#ifdef FEAT_DIFF
    to->wo_wrap_save = from->wo_wrap_save;
#endif
#ifdef FEAT_LINEBREAK
    to->wo_lbr = from->wo_lbr;
    to->wo_bri = from->wo_bri;
    to->wo_briopt = vim_strsave(from->wo_briopt);
#endif
#ifdef FEAT_SCROLLBIND
    to->wo_scb = from->wo_scb;
    to->wo_scb_save = from->wo_scb_save;
#endif
#ifdef FEAT_CURSORBIND
    to->wo_crb = from->wo_crb;
    to->wo_crb_save = from->wo_crb_save;
#endif
#ifdef FEAT_SPELL
    to->wo_spell = from->wo_spell;
#endif
#ifdef FEAT_SYN_HL
    to->wo_cuc = from->wo_cuc;
    to->wo_cul = from->wo_cul;
    to->wo_cc = vim_strsave(from->wo_cc);
#endif
#ifdef FEAT_DIFF
    to->wo_diff = from->wo_diff;
    to->wo_diff_saved = from->wo_diff_saved;
#endif
#ifdef FEAT_CONCEAL
    to->wo_cocu = vim_strsave(from->wo_cocu);
    to->wo_cole = from->wo_cole;
#endif
#ifdef FEAT_FOLDING
    to->wo_fdc = from->wo_fdc;
    to->wo_fdc_save = from->wo_fdc_save;
    to->wo_fen = from->wo_fen;
    to->wo_fen_save = from->wo_fen_save;
    to->wo_fdi = vim_strsave(from->wo_fdi);
    to->wo_fml = from->wo_fml;
    to->wo_fdl = from->wo_fdl;
    to->wo_fdl_save = from->wo_fdl_save;
    to->wo_fdm = vim_strsave(from->wo_fdm);
    to->wo_fdm_save = from->wo_diff_saved
			      ? vim_strsave(from->wo_fdm_save) : empty_option;
    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
#ifdef FEAT_SIGNS
    to->wo_scl = vim_strsave(from->wo_scl);
#endif
    check_winopt(to);		/* don't want NULL pointers */
}

Project: vim
File: option.c

set_option_value(
    char_u	*name,
    long	number,
    char_u	*string,
    int		opt_flags)	/* OPT_LOCAL or 0 (both) */
{
    int		opt_idx;
    char_u	*varp;
    long_u	flags;

    opt_idx = findoption(name);
    if (opt_idx < 0)
	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));
	    return NULL;
	}
#endif
	if (flags & P_STRING)
	    return set_string_option(opt_idx, string, opt_flags);
	else
	{
	    varp = get_varp_scope(&(options[opt_idx]), opt_flags);
	    if (varp != NULL)	/* hidden option is not changed */
	    {
		if (number == 0 && string != NULL)
		{
		    int idx;

		    /* Either we are given a string or we are setting option
		     * to zero. */
		    for (idx = 0; string[idx] == '0'; ++idx)
			;
		    if (string[idx] != NUL || idx == 0)
		    {
			/* There's another character after zeros or the string
			 * is empty.  In both cases, we are trying to set a
			 * num option using a string. */
			EMSG3(_("E521: Number required: &%s = '%s'"),
								name, string);
			return NULL;     /* do nothing as we hit an error */

		    }
		}
		if (flags & P_NUM)
		    return set_num_option(opt_idx, varp, number,
							  NULL, 0, opt_flags);
		else
		    return set_bool_option(opt_idx, varp, (int)number,
								   opt_flags);
	    }
	}
    }
    return NULL;
}

Project: vim
File: option.c

langmap_init(void)
{
    int i;

    for (i = 0; i < 256; i++)
	langmap_mapchar[i] = i;	 /* we init with a one-to-one map */
# ifdef FEAT_MBYTE
    ga_init2(&langmap_mapga, sizeof(langmap_entry_T), 8);
# endif
}

Project: vim
File: option.c

clear_winopt(winopt_T *wop UNUSED)
{
#ifdef FEAT_FOLDING
    clear_string_option(&wop->wo_fdi);
    clear_string_option(&wop->wo_fdm);
    clear_string_option(&wop->wo_fdm_save);
# 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_SIGNS
    clear_string_option(&wop->wo_scl);
#endif
#ifdef FEAT_LINEBREAK
    clear_string_option(&wop->wo_briopt);
#endif
#ifdef FEAT_RIGHTLEFT
    clear_string_option(&wop->wo_rlc);
#endif
#ifdef FEAT_STL_OPT
    clear_string_option(&wop->wo_stl);
#endif
#ifdef FEAT_SYN_HL
    clear_string_option(&wop->wo_cc);
#endif
#ifdef FEAT_CONCEAL
    clear_string_option(&wop->wo_cocu);
#endif
}

Project: vim
File: option.c

get_winbuf_options(int bufopt)
{
    dict_T	*d;
    int		opt_idx;

    d = dict_alloc();
    if (d == NULL)
	return NULL;

    for (opt_idx = 0; !istermoption(&options[opt_idx]); opt_idx++)
    {
	struct vimoption *opt = &options[opt_idx];

	if ((bufopt && (opt->indir & PV_BUF))
					 || (!bufopt && (opt->indir & PV_WIN)))
	{
	    char_u *varp = get_varp(opt);

	    if (varp != NULL)
	    {
		if (opt->flags & P_STRING)
		    dict_add_nr_str(d, opt->fullname, 0L, *(char_u **)varp);
		else if (opt->flags & P_NUM)
		    dict_add_nr_str(d, opt->fullname, *(long *)varp, NULL);
		else
		    dict_add_nr_str(d, opt->fullname, *(int *)varp, NULL);
	    }
	}
    }

    return d;
}

Project: vim
File: option.c

set_options_default(
    int		opt_flags)	/* OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL */
{
    int		i;
#ifdef FEAT_WINDOWS
    win_T	*wp;
    tabpage_T	*tp;
#endif

    for (i = 0; !istermoption(&options[i]); i++)
	if (!(options[i].flags & P_NODEFAULT)
#if defined(FEAT_MBYTE) || defined(FEAT_CRYPT)
		&& (opt_flags == 0
		    || (TRUE
# if defined(FEAT_MBYTE)
			&& options[i].var != (char_u *)&p_enc
# endif
# if defined(FEAT_CRYPT)
			&& options[i].var != (char_u *)&p_cm
			&& options[i].var != (char_u *)&p_key
# endif
			))
#endif
			)
	    set_option_default(i, opt_flags, p_cp);

#ifdef FEAT_WINDOWS
    /* The 'scroll' option must be computed for all windows. */
    FOR_ALL_TAB_WINDOWS(tp, wp)
	win_comp_scroll(wp);
#else
	win_comp_scroll(curwin);
#endif
#ifdef FEAT_CINDENT
    parse_cino(curbuf);
#endif
}

Project: vim
File: option.c

langmap_set(void)
{
    char_u  *p;
    char_u  *p2;
    int	    from, to;

#ifdef FEAT_MBYTE
    ga_clear(&langmap_mapga);		    /* clear the previous map first */
#endif
    langmap_init();			    /* back to one-to-one map */

    for (p = p_langmap; p[0] != NUL; )
    {
	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
							       mb_ptr_adv(p2))
	{
	    if (p2[0] == '\\' && p2[1] != NUL)
		++p2;
	}
	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;
		break;
	    }
	    if (p[0] == '\\' && p[1] != NUL)
		++p;
#ifdef FEAT_MBYTE
	    from = (*mb_ptr2char)(p);
#else
	    from = p[0];
#endif
	    to = NUL;
	    if (p2 == NULL)
	    {
		mb_ptr_adv(p);
		if (p[0] != ',')
		{
		    if (p[0] == '\\')
			++p;
#ifdef FEAT_MBYTE
		    to = (*mb_ptr2char)(p);
#else
		    to = p[0];
#endif
		}
	    }
	    else
	    {
		if (p2[0] != ',')
		{
		    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;
	    }

#ifdef FEAT_MBYTE
	    if (from >= 256)
		langmap_set_entry(from, to);
	    else
#endif
		langmap_mapchar[from & 255] = to;

	    /* Advance to next pair */
	    mb_ptr_adv(p);
	    if (p2 != NULL)
	    {
		mb_ptr_adv(p2);
		if (*p == ';')
		{
		    p = p2;
		    if (p[0] != NUL)
		    {
			if (p[0] != ',')
			{
			    EMSG2(_("E358: 'langmap': Extra characters after semicolon: %s"), p);
			    return;
			}
			++p;
		    }
		    break;
		}
	    }
	}
    }
}

Project: vim
File: option.c

unset_global_local_option(char_u *name, void *from)
{
    struct vimoption *p;
    int		opt_idx;
    buf_T	*buf = (buf_T *)from;

    opt_idx = findoption(name);
    if (opt_idx < 0)
	return;
    p = &(options[opt_idx]);

    switch ((int)p->indir)
    {
	/* global option with local value: use local value if it's been set */
	case PV_EP:
	    clear_string_option(&buf->b_p_ep);
	    break;
	case PV_KP:
	    clear_string_option(&buf->b_p_kp);
	    break;
	case PV_PATH:
	    clear_string_option(&buf->b_p_path);
	    break;
	case PV_AR:
	    buf->b_p_ar = -1;
	    break;
	case PV_BKC:
	    clear_string_option(&buf->b_p_bkc);
	    buf->b_bkc_flags = 0;
	    break;
	case PV_TAGS:
	    clear_string_option(&buf->b_p_tags);
	    break;
	case PV_TC:
	    clear_string_option(&buf->b_p_tc);
	    buf->b_tc_flags = 0;
	    break;
#ifdef FEAT_FIND_ID
	case PV_DEF:
	    clear_string_option(&buf->b_p_def);
	    break;
	case PV_INC:
	    clear_string_option(&buf->b_p_inc);
	    break;
#endif
#ifdef FEAT_INS_EXPAND
	case PV_DICT:
	    clear_string_option(&buf->b_p_dict);
	    break;
	case PV_TSR:
	    clear_string_option(&buf->b_p_tsr);
	    break;
#endif
#ifdef FEAT_QUICKFIX
	case PV_EFM:
	    clear_string_option(&buf->b_p_efm);
	    break;
	case PV_GP:
	    clear_string_option(&buf->b_p_gp);
	    break;
	case PV_MP:
	    clear_string_option(&buf->b_p_mp);
	    break;
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
	case PV_BEXPR:
	    clear_string_option(&buf->b_p_bexpr);
	    break;
#endif
#if defined(FEAT_CRYPT)
	case PV_CM:
	    clear_string_option(&buf->b_p_cm);
	    break;
#endif
#ifdef FEAT_STL_OPT
	case PV_STL:
	    clear_string_option(&((win_T *)from)->w_p_stl);
	    break;
#endif
	case PV_UL:
	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
	    break;
#ifdef FEAT_LISP
	case PV_LW:
	    clear_string_option(&buf->b_p_lw);
	    break;
#endif
    }
}

Project: vim
File: option.c

opt_strings_flags(
    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;
}

Project: vim
File: option.c

vimrc_found(char_u *fname, char_u *envname)
{
    int		opt_idx;
    int		dofree = FALSE;
    char_u	*p;

    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();
	didset_options2();
    }

    if (fname != NULL)
    {
	p = vim_getenv(envname, &dofree);
	if (p == NULL)
	{
	    /* Set $MYVIMRC to the first vimrc file found. */
	    p = FullName_save(fname, FALSE);
	    if (p != NULL)
	    {
		vim_setenv(envname, p);
		vim_free(p);
	    }
	}
	else if (dofree)
	    vim_free(p);
    }
}

Project: vim
File: option.c

set_chars_option(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_nbsp,	"nbsp"},
	{&lcs_prec,	"precedes"},
	{&lcs_space,	"space"},
	{&lcs_tab2,	"tab"},
	{&lcs_trail,	"trail"},
#ifdef FEAT_CONCEAL
	{&lcs_conceal,	"conceal"},
#else
	{NULL,		"conceal"},
#endif
    };
    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 > 0)
	{
	    /* After checking that the value is valid: set defaults: space for
	     * 'fillchars', NUL for 'listchars' */
	    for (i = 0; i < entries; ++i)
		if (tab[i].cp != NULL)
		    *(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);
		    if (mb_char2cells(c1) > 1)
			continue;
#else
		    c1 = *s++;
#endif
		    if (tab[i].cp == &lcs_tab2)
		    {
			if (*s == NUL)
			    continue;
#ifdef FEAT_MBYTE
			c2 = mb_ptr2char_adv(&s);
			if (mb_char2cells(c2) > 1)
			    continue;
#else
			c2 = *s++;
#endif
		    }
		    if (*s == ',' || *s == NUL)
		    {
			if (round)
			{
			    if (tab[i].cp == &lcs_tab2)
			    {
				lcs_tab1 = c1;
				lcs_tab2 = c2;
			    }
			    else if (tab[i].cp != NULL)
				*(tab[i].cp) = c1;

			}
			p = s;
			break;
		    }
		}
	    }

	    if (i == entries)
		return e_invarg;
	    if (*p == ',')
		++p;
	}
    }

    return NULL;	/* no error */
}

Project: vim
File: option.c

compile_cap_prog(synblock_T *synblock)
{
    regprog_T   *rp = synblock->b_cap_prog;
    char_u	*re;

    if (*synblock->b_p_spc == NUL)
	synblock->b_cap_prog = NULL;
    else
    {
	/* Prepend a ^ so that we only match at one column */
	re = concat_str((char_u *)"^", synblock->b_p_spc);
	if (re != NULL)
	{
	    synblock->b_cap_prog = vim_regcomp(re, RE_MAGIC);
	    vim_free(re);
	    if (synblock->b_cap_prog == NULL)
	    {
		synblock->b_cap_prog = rp; /* restore the previous program */
		return e_invarg;
	    }
	}
    }

    vim_regfree(rp);
    return NULL;
}

Project: vim
File: option.c

was_set_insecurely(char_u *opt, int opt_flags)
{
    int	    idx = findoption(opt);
    long_u  *flagp;

    if (idx >= 0)
    {
	flagp = insecure_flag(idx, opt_flags);
	return (*flagp & P_INSECURE) != 0;
    }
    EMSG2(_(e_intern2), "was_set_insecurely()");
    return -1;
}

Project: vim
File: option.c

insecure_flag(int opt_idx, int opt_flags)
{
    if (opt_flags & OPT_LOCAL)
	switch ((int)options[opt_idx].indir)
	{
#ifdef FEAT_STL_OPT
	    case PV_STL:	return &curwin->w_p_stl_flags;
#endif
#ifdef FEAT_EVAL
# ifdef FEAT_FOLDING
	    case PV_FDE:	return &curwin->w_p_fde_flags;
	    case PV_FDT:	return &curwin->w_p_fdt_flags;
# endif
# ifdef FEAT_BEVAL
	    case PV_BEXPR:	return &curbuf->b_p_bexpr_flags;
# endif
# if defined(FEAT_CINDENT)
	    case PV_INDE:	return &curbuf->b_p_inde_flags;
# endif
	    case PV_FEX:	return &curbuf->b_p_fex_flags;
# ifdef FEAT_FIND_ID
	    case PV_INEX:	return &curbuf->b_p_inex_flags;
# endif
#endif
	}

    /* Nothing special, return global flags field. */
    return &options[opt_idx].flags;
}

Project: vim
File: option.c

set_option_scriptID_idx(int opt_idx, int opt_flags, int id)
{
    int		both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
    int		indir = (int)options[opt_idx].indir;

    /* Remember where the option was set.  For local options need to do that
     * in the buffer or window structure. */
    if (both || (opt_flags & OPT_GLOBAL) || (indir & (PV_BUF|PV_WIN)) == 0)
	options[opt_idx].scriptID = id;
    if (both || (opt_flags & OPT_LOCAL))
    {
	if (indir & PV_BUF)
	    curbuf->b_p_scriptID[indir & PV_MASK] = id;
	else if (indir & PV_WIN)
	    curwin->w_p_scriptID[indir & PV_MASK] = id;
    }
}

Project: vim
File: option.c

signcolumn_on(win_T *wp)
{
    if (*wp->w_p_scl == 'n')
	return FALSE;
    if (*wp->w_p_scl == 'y')
	return TRUE;
    return (wp->w_buffer->b_signlist != NULL
# ifdef FEAT_NETBEANS_INTG
			|| wp->w_buffer->b_has_sign_column
# endif
		    );
}

Project: vim
File: option.c

find_key_option(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, TRUE, FALSE);
	if (modifiers)		    /* can't handle modifiers here */
	    key = 0;
    }
    return key;
}

Project: vim
File: option.c

buf_copy_options(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;

    /*
     * 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
		switch (*p_ffs)
		{
		    case 'm':
			buf->b_p_ff = vim_strsave((char_u *)FF_MAC); break;
		    case 'd':
			buf->b_p_ff = vim_strsave((char_u *)FF_DOS); break;
		    case 'u':
			buf->b_p_ff = vim_strsave((char_u *)FF_UNIX); break;
		    default:
			buf->b_p_ff = vim_strsave(p_ff);
		}
		if (buf->b_p_ff != NULL)
		    buf->b_start_ffc = *buf->b_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;
#ifdef FEAT_MBYTE
	    buf->b_p_bomb = p_bomb;
#endif
	    buf->b_p_fixeol = p_fixeol;
	    buf->b_p_et = p_et;
	    buf->b_p_et_nobin = p_et_nobin;
	    buf->b_p_et_nopaste = p_et_nopaste;
	    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
#ifdef FEAT_COMPL_FUNC
	    buf->b_p_cfu = vim_strsave(p_cfu);
	    buf->b_p_ofu = vim_strsave(p_ofu);
#endif
	    buf->b_p_sts = p_sts;
	    buf->b_p_sts_nopaste = p_sts_nopaste;
	    buf->b_p_sn = p_sn;
#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_flp = vim_strsave(p_flp);
	    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
	    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;
	    buf->b_p_smc = p_smc;
	    buf->b_s.b_syn_isk = empty_option;
#endif
#ifdef FEAT_SPELL
	    buf->b_s.b_p_spc = vim_strsave(p_spc);
	    (void)compile_cap_prog(&buf->b_s);
	    buf->b_s.b_p_spf = vim_strsave(p_spf);
	    buf->b_s.b_p_spl = vim_strsave(p_spl);
#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
#if defined(FEAT_EVAL)
	    buf->b_p_fex = vim_strsave(p_fex);
#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;
	    buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
	    buf->b_p_bkc = empty_option;
	    buf->b_bkc_flags = 0;
#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;
	    buf->b_p_tc = empty_option;
	    buf->b_tc_flags = 0;
#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
#ifdef FEAT_TEXTOBJ
	    buf->b_p_qe = vim_strsave(p_qe);
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
	    buf->b_p_bexpr = empty_option;
#endif
#if defined(FEAT_CRYPT)
	    buf->b_p_cm = empty_option;
#endif
#ifdef FEAT_PERSISTENT_UNDO
	    buf->b_p_udf = p_udf;
#endif
#ifdef FEAT_LISP
	    buf->b_p_lw = 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);
}

Project: vim
File: option.c

init_gui_options(void)
{
    /* 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();
    }
}

Project: vim
File: option.c

set_string_default(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 (opt_idx >= 0)
	{
	    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;
	}
    }
}

Project: vim
File: option.c

can_bs(
    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;
}

Project: vim
File: option.c

ExpandOldSetting(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; mb_ptr_adv(var))
	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] != '\\')))
	    STRMOVE(var, var + 1);
#endif

    *file[0] = buf;
    *num_file = 1;
    return OK;
}

Project: vim
File: option.c

free_all_options(void)
{
    int		i;

    for (i = 0; !istermoption(&options[i]); i++)
    {
	if (options[i].indir == PV_NONE)
	{
	    /* global option: free value and default value. */
	    if (options[i].flags & P_ALLOCED && options[i].var != NULL)
		free_string_option(*(char_u **)options[i].var);
	    if (options[i].flags & P_DEF_ALLOCED)
		free_string_option(options[i].def_val[VI_DEFAULT]);
	}
	else if (options[i].var != VAR_WIN
		&& (options[i].flags & P_STRING))
	    /* buffer-local option: free global value */
	    free_string_option(*(char_u **)options[i].var);
    }
}

Project: vim
File: option.c

term_bg_default(void)
{
#if defined(WIN3264)
    /* DOS console nearly always black */
    return (char_u *)"dark";
#else
    char_u	*p;

    if (STRCMP(T_NAME, "linux") == 0
	    || STRCMP(T_NAME, "screen.linux") == 0
	    || STRCMP(T_NAME, "cygwin") == 0
	    || STRCMP(T_NAME, "putty") == 0
	    || ((p = mch_getenv((char_u *)"COLORFGBG")) != NULL
		&& (p = vim_strrchr(p, ';')) != NULL
		&& ((p[1] >= '0' && p[1] <= '6') || p[1] == '8')
		&& p[2] == NUL))
	return (char_u *)"dark";
    return (char_u *)"light";
#endif
}

Project: vim
File: option.c

set_term_defaults(void)
{
    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 */
	    }
	}
    }
}

Project: vim
File: option.c

check_stl_option(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_USER_HL)
	    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;
}

Project: vim
File: option.c

get_varp_scope(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 PV_EFM:  return (char_u *)&(curbuf->b_p_efm);
	    case PV_GP:   return (char_u *)&(curbuf->b_p_gp);
	    case PV_MP:   return (char_u *)&(curbuf->b_p_mp);
#endif
	    case PV_EP:   return (char_u *)&(curbuf->b_p_ep);
	    case PV_KP:   return (char_u *)&(curbuf->b_p_kp);
	    case PV_PATH: return (char_u *)&(curbuf->b_p_path);
	    case PV_AR:   return (char_u *)&(curbuf->b_p_ar);
	    case PV_TAGS: return (char_u *)&(curbuf->b_p_tags);
	    case PV_TC:   return (char_u *)&(curbuf->b_p_tc);
#ifdef FEAT_FIND_ID
	    case PV_DEF:  return (char_u *)&(curbuf->b_p_def);
	    case PV_INC:  return (char_u *)&(curbuf->b_p_inc);
#endif
#ifdef FEAT_INS_EXPAND
	    case PV_DICT: return (char_u *)&(curbuf->b_p_dict);
	    case PV_TSR:  return (char_u *)&(curbuf->b_p_tsr);
#endif
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
	    case PV_BEXPR: return (char_u *)&(curbuf->b_p_bexpr);
#endif
#if defined(FEAT_CRYPT)
	    case PV_CM:	  return (char_u *)&(curbuf->b_p_cm);
#endif
#ifdef FEAT_STL_OPT
	    case PV_STL:  return (char_u *)&(curwin->w_p_stl);
#endif
	    case PV_UL:   return (char_u *)&(curbuf->b_p_ul);
#ifdef FEAT_LISP
	    case PV_LW:   return (char_u *)&(curbuf->b_p_lw);
#endif
	    case PV_BKC:  return (char_u *)&(curbuf->b_p_bkc);
	}
	return NULL; /* "cannot happen" */
    }
    return get_varp(p);
}

Project: vim
File: option.c

did_set_string_option(
    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;
    long_u	free_oldval = (options[opt_idx].flags & P_ALLOCED);
#ifdef FEAT_GUI
    /* set when changing an option that only requires a redraw in the GUI */
    int		redraw_gui_only = FALSE;
#endif

    /* 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;
    }

    /* Check for a "normal" file name in some options.  Disallow a path
     * separator (slash and/or backslash), wildcards and characters that are
     * often illegal in a file name. */
    else if ((options[opt_idx].flags & P_NFNAME)
			 && vim_strpbrk(*varp, (char_u *)"/\\*?[|<>") != NULL)
    {
	errmsg = e_invarg;
    }

    /* '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 (gvarp == &p_bkc)
    {
	char_u		*bkc = p_bkc;
	unsigned int	*flags = &bkc_flags;

	if (opt_flags & OPT_LOCAL)
	{
	    bkc = curbuf->b_p_bkc;
	    flags = &curbuf->b_bkc_flags;
	}

	if ((opt_flags & OPT_LOCAL) && *bkc == NUL)
	    /* make the local value empty: use the global value */
	    *flags = 0;
	else
	{
	    if (opt_strings_flags(bkc, p_bkc_values, flags, TRUE) != OK)
		errmsg = e_invarg;
	    if ((((int)*flags & BKC_AUTO) != 0)
		    + (((int)*flags & BKC_YES) != 0)
		    + (((int)*flags & BKC_NO) != 0) != 1)
	    {
		/* Must have exactly one of "auto", "yes"  and "no". */
		(void)opt_strings_flags(oldval, p_bkc_values, 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");
    }
#ifdef FEAT_LINEBREAK
    /* 'breakindentopt' */
    else if (varp == &curwin->w_p_briopt)
    {
	if (briopt_check(curwin) == FAIL)
	    errmsg = e_invarg;
    }
#endif

    /*
     * 'isident', 'iskeyword', 'isprint or 'isfname' option: refill g_chartab[]
     * If the new option is invalid, use old value.  'lisp' option: refill
     * g_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_SYN_HL
    /* 'colorcolumn' */
    else if (varp == &curwin->w_p_cc)
	errmsg = check_colorcolumn(curwin);
#endif

#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 || varp == &p_emoji)
    {
	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
	    errmsg = e_invarg;
	else if (set_chars_option(&p_lcs) != NULL)
	    errmsg = (char_u *)_("E834: Conflicts with value of 'listchars'");
# if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
	else if (set_chars_option(&p_fcs) != NULL)
	    errmsg = (char_u *)_("E835: Conflicts with value of 'fillchars'");
# endif
    }
#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", TRUE);
		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_CMDL_COMPL
    /* 'wildoptions' */
    else if (varp == &p_wop)
    {
	if (check_opt_strings(p_wop, p_wop_values, TRUE) != OK)
	    errmsg = e_invarg;
    }
#endif

#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 && opt_flags != OPT_GLOBAL)
		errmsg = e_modifiable;
	    else if (vim_strchr(*varp, ',') != NULL)
		/* No comma allowed in 'fileencoding'; catches confusing it
		 * with 'fileencodings'. */
		errmsg = e_invarg;
	    else
	    {
# ifdef FEAT_TITLE
		/* May show a "+" in the title now. */
		redraw_titles();
# endif
		/* Add 'fileencoding' to the swap file. */
		ml_setflags(curbuf);
	    }
	}
	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
		redraw_titles();
# endif
	    }
	}

# if defined(FEAT_GUI_GTK)
	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);
	    }

# if defined(WIN3264) && defined(FEAT_MBYTE)
	    /* $HOME may have characters in active code page. */
	    if (varp == &p_enc)
		init_homedir();
# endif
	}
    }
#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)
    {
	if (!valid_filetype(*varp))
	    errmsg = e_invarg;
	else
	    /* load or unload key mapping tables */
	    errmsg = keymap_init();

	if (errmsg == NULL)
	{
	    if (*curbuf->b_p_keymap != NUL)
	    {
		/* Installed a new keymap, switch on using it. */
		curbuf->b_p_iminsert = B_IMODE_LMAP;
		if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT)
		    curbuf->b_p_imsearch = B_IMODE_LMAP;
	    }
	    else
	    {
		/* Cleared the keymap, may reset 'iminsert' and 'imsearch'. */
		if (curbuf->b_p_iminsert == B_IMODE_LMAP)
		    curbuf->b_p_iminsert = B_IMODE_NONE;
		if (curbuf->b_p_imsearch == B_IMODE_LMAP)
		    curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
	    }
	    if ((opt_flags & OPT_LOCAL) == 0)
	    {
		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
	    redraw_titles();
#endif
	    /* update flag in swap file */
	    ml_setflags(curbuf);
	    /* Redraw needed when switching to/from "mac": a CR in the text
	     * will be displayed differently. */
	    if (get_fileformat(curbuf) == EOL_MAC || *oldval == 'm')
		redraw_curbuf_later(NOT_VALID);
	}
    }

    /* '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)
    /* 'cryptkey' */
    else if (gvarp == &p_key)
    {
# if defined(FEAT_CMDHIST)
	/* Make sure the ":set" command doesn't show the new value in the
	 * history. */
	remove_key_from_history();
# endif
	if (STRCMP(curbuf->b_p_key, oldval) != 0)
	    /* Need to update the swapfile. */
	    ml_set_crypt_key(curbuf, oldval,
			      *curbuf->b_p_cm == NUL ? p_cm : curbuf->b_p_cm);
    }

    else if (gvarp == &p_cm)
    {
	if (opt_flags & OPT_LOCAL)
	    p = curbuf->b_p_cm;
	else
	    p = p_cm;
	if (check_opt_strings(p, p_cm_values, TRUE) != OK)
	    errmsg = e_invarg;
	else if (crypt_self_test() == FAIL)
	    errmsg = e_invarg;
	else
	{
	    /* When setting the global value to empty, make it "zip". */
	    if (*p_cm == NUL)
	    {
		if (new_value_alloced)
		    free_string_option(p_cm);
		p_cm = vim_strsave((char_u *)"zip");
		new_value_alloced = TRUE;
	    }
	    /* When using ":set cm=name" the local value is going to be empty.
	     * Do that here, otherwise the crypt functions will still use the
	     * local value. */
	    if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0)
	    {
		free_string_option(curbuf->b_p_cm);
		curbuf->b_p_cm = empty_option;
	    }

	    /* Need to update the swapfile when the effective method changed.
	     * Set "s" to the effective old value, "p" to the effective new
	     * method and compare. */
	    if ((opt_flags & OPT_LOCAL) && *oldval == NUL)
		s = p_cm;  /* was previously using the global value */
	    else
		s = oldval;
	    if (*curbuf->b_p_cm == NUL)
		p = p_cm;  /* is now using the global value */
	    else
		p = curbuf->b_p_cm;
	    if (STRCMP(s, p) != 0)
		ml_set_crypt_key(curbuf, curbuf->b_p_key, s);

	    /* If the global value changes need to update the swapfile for all
	     * buffers using that value. */
	    if ((opt_flags & OPT_GLOBAL) && STRCMP(p_cm, oldval) != 0)
	    {
		buf_T	*buf;

		FOR_ALL_BUFFERS(buf)
		    if (buf != curbuf && *buf->b_p_cm == NUL)
			ml_set_crypt_key(buf, buf->b_p_key, oldval);
	    }
	}
    }
#endif

    /* 'matchpairs' */
    else if (gvarp == &p_mps)
    {
#ifdef FEAT_MBYTE
	if (has_mbyte)
	{
	    for (p = *varp; *p != NUL; ++p)
	    {
		int x2 = -1;
		int x3 = -1;

		if (*p != NUL)
		    p += mb_ptr2len(p);
		if (*p != NUL)
		    x2 = *p++;
		if (*p != NUL)
		{
		    x3 = mb_ptr2char(p);
		    p += mb_ptr2len(p);
		}
		if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ','))
		{
		    errmsg = e_invarg;
		    break;
		}
		if (*p == NUL)
		    break;
	    }
	}
	else
#endif
	{
	    /* 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

    /* 'verbosefile' */
    else if (varp == &p_vfile)
    {
	verbose_stop();
	if (*p_vfile != NUL && verbose_open() == FAIL)
	    errmsg = e_invarg;
    }

#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 == '%')
	    {
		/* optional number */
		while (vim_isdigit(*++s))
		    ;
	    }
	    else if (*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)
	{
	    int colors = atoi((char *)T_CCO);

	    /* Only reinitialize colors if t_Co value has really changed to
	     * avoid expensive reload of colorscheme if t_Co is set to the
	     * same value multiple times. */
	    if (colors != t_colors)
	    {
		t_colors = colors;
		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(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");
	    mb_ptr_adv(s);
	}
    }
#endif

#ifdef FEAT_GUI
    /* 'guifont' */
    else if (varp == &p_guifont)
    {
	if (gui.in_use)
	{
	    p = p_guifont;
# if defined(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)");
	    }
	}
	redraw_gui_only = TRUE;
    }
# 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");
	redraw_gui_only = TRUE;
    }
# 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");
	redraw_gui_only = TRUE;
    }
# 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_printoptions();
# if defined(FEAT_MBYTE) && defined(FEAT_POSTSCRIPT)
    else if (varp == &p_pmfn)
	errmsg = parse_printmbfont();
# endif
#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);
	redraw_gui_only = TRUE;
    }
#endif

#if defined(FEAT_GUI_TABLINE)
    /* 'guitablabel' */
    else if (varp == &p_gtl)
    {
	redraw_tabline = TRUE;
	redraw_gui_only = TRUE;
    }
    /* 'guitabtooltip' */
    else if (varp == &p_gtt)
    {
	redraw_gui_only = TRUE;
    }
#endif

#if defined(FEAT_MOUSE_TTY) && (defined(UNIX) || defined(VMS))
    /* 'ttymouse' */
    else if (varp == &p_ttym)
    {
	/* Switch the mouse off before changing the escape sequences used for
	 * that. */
	mch_setmouse(FALSE);
	if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK)
	    errmsg = e_invarg;
	else
	    check_mouse_termcode();
	if (termcap_active)
	    setmouse();		/* may switch it on again */
    }
#endif

    /* '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;
    }

#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

    /* '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);
	}
    }

    /* '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 (opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE) != OK)
	    errmsg = e_invarg;
    }

    /* 'debug' */
    else if (varp == &p_debug)
    {
	if (check_opt_strings(p_debug, p_debug_values, TRUE) != 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_WINDOWS
    /* '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_SPELL
    /* When 'spelllang' or 'spellfile' is set and there is a window for this
     * buffer in which 'spell' is set load the wordlists. */
    else if (varp == &(curwin->w_s->b_p_spl)
	    || varp == &(curwin->w_s->b_p_spf))
    {
	errmsg = did_set_spell_option(varp == &(curwin->w_s->b_p_spf));
    }
    /* When 'spellcapcheck' is set compile the regexp program. */
    else if (varp == &(curwin->w_s->b_p_spc))
    {
	errmsg = compile_cap_prog(curwin->w_s);
    }
    /* 'spellsuggest' */
    else if (varp == &p_sps)
    {
	if (spell_check_sps() != OK)
	    errmsg = e_invarg;
    }
    /* 'mkspellmem' */
    else if (varp == &p_msm)
    {
	if (spell_check_msm() != OK)
	    errmsg = e_invarg;
    }
#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');
# ifdef FEAT_TITLE
	    redraw_titles();
# endif
	}
    }
#endif

#ifdef FEAT_STL_OPT
    /* 'statusline' or 'rulerformat' */
    else if (gvarp == &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);
	}
	/* check 'statusline' only if it doesn't start with "%!" */
	else if (varp == &p_ruf || s[0] != '%' || s[1] != '!')
	    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;
		}
	    }
	}
    }

    /* 'completeopt' */
    else if (varp == &p_cot)
    {
	if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK)
	    errmsg = e_invarg;
	else
	    completeopt_was_set();
    }
#endif /* FEAT_INS_EXPAND */

#ifdef FEAT_SIGNS
    /* 'signcolumn' */
    else if (varp == &curwin->w_p_scl)
    {
	if (check_opt_strings(*varp, p_scl_values, FALSE) != OK)
	    errmsg = e_invarg;
    }
#endif


#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)
    /* '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, FALSE);
	    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;
    }
    else if (varp == &p_bo)
    {
	if (opt_strings_flags(p_bo, p_bo_values, &bo_flags, TRUE) != OK)
	    errmsg = e_invarg;
    }

    /* 'tagcase' */
    else if (gvarp == &p_tc)
    {
	unsigned int	*flags;

	if (opt_flags & OPT_LOCAL)
	{
	    p = curbuf->b_p_tc;
	    flags = &curbuf->b_tc_flags;
	}
	else
	{
	    p = p_tc;
	    flags = &tc_flags;
	}

	if ((opt_flags & OPT_LOCAL) && *p == NUL)
	    /* make the local value empty: use the global value */
	    *flags = 0;
	else if (*p == NUL
		|| opt_strings_flags(p, p_tc_values, flags, FALSE) != OK)
	    errmsg = e_invarg;
    }

#ifdef FEAT_MBYTE
    /* 'casemap' */
    else if (varp == &p_cmp)
    {
	if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE) != OK)
	    errmsg = e_invarg;
    }
#endif

#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);
	    if (foldmethodIsDiff(curwin))
		newFoldLevel();
	}
    }
# 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;
    }
    /* 'foldignore' */
    else if (gvarp == &curwin->w_allbuf_opt.wo_fdi)
    {
	if (foldmethodIsIndent(curwin))
	    foldUpdateAll(curwin);
    }
#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

#ifdef FEAT_CINDENT
    /* 'cinoptions' */
    else if (gvarp == &p_cino)
    {
	/* TODO: recognize errors */
	parse_cino(curbuf);
    }
#endif

#if defined(FEAT_RENDER_OPTIONS)
    else if (varp == &p_rop && gui.in_use)
    {
	if (!gui_mch_set_rendering_options(p_rop))
	    errmsg = e_invarg;
    }
#endif

#ifdef FEAT_AUTOCMD
    else if (gvarp == &p_ft)
    {
	if (!valid_filetype(*varp))
	    errmsg = e_invarg;
    }
#endif

#ifdef FEAT_SYN_HL
    else if (gvarp == &p_syn)
    {
	if (!valid_filetype(*varp))
	    errmsg = e_invarg;
    }
#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;
#ifdef FEAT_CONCEAL
	else if (varp == &curwin->w_p_cocu)
	    p = (char_u *)COCU_ALL;
#endif
	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. */
	set_option_scriptID_idx(opt_idx, opt_flags, current_SID);
#endif
	/*
	 * Free string options that are in allocated memory.
	 * Use "free_oldval", because recursiveness may change the flags under
	 * our fingers (esp. init_highlight()).
	 */
	if (free_oldval)
	    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_AUTOCMD
	/*
	 * Trigger the autocommand only after setting the flags.
	 */
# ifdef FEAT_SYN_HL
	/* When 'syntax' is set, load the syntax of that name */
	if (varp == &(curbuf->b_p_syn))
	{
	    apply_autocmds(EVENT_SYNTAX, curbuf->b_p_syn,
					       curbuf->b_fname, TRUE, curbuf);
	}
# endif
	else if (varp == &(curbuf->b_p_ft))
	{
	    /* 'filetype' is set, trigger the FileType autocommand */
	    did_filetype = TRUE;
	    apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft,
					       curbuf->b_fname, TRUE, curbuf);
	}
#endif
#ifdef FEAT_SPELL
	if (varp == &(curwin->w_s->b_p_spl))
	{
	    char_u	fname[200];
	    char_u	*q = curwin->w_s->b_p_spl;

	    /* Skip the first name if it is "cjk". */
	    if (STRNCMP(q, "cjk,", 4) == 0)
		q += 4;

	    /*
	     * Source the spell/LANG.vim in 'runtimepath'.
	     * They could set 'spellcapcheck' depending on the language.
	     * Use the first name in 'spelllang' up to '_region' or
	     * '.encoding'.
	     */
	    for (p = q; *p != NUL; ++p)
		if (vim_strchr((char_u *)"_.,", *p) != NULL)
		    break;
	    vim_snprintf((char *)fname, 200, "spell/%.*s.vim", (int)(p - q), q);
	    source_runtime(fname, DIP_ALL);
	}
#endif
    }

#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
		     && (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
	curwin->w_set_curswant = TRUE;

#ifdef FEAT_GUI
    /* check redraw when it's not a GUI option or the GUI is active. */
    if (!redraw_gui_only || gui.in_use)
#endif
	check_redraw(options[opt_idx].flags);

    return errmsg;
}

Project: vim
File: option.c

set_string_option_global(
    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;
    }
}

Project: vim
File: option.c

set_string_option(
    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 defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
    char_u	*saved_oldval = NULL;
#endif
    char_u	*r = NULL;

    if (options[opt_idx].var == NULL)	/* don't set hidden option */
	return NULL;

    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;

#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
	if (!starting
# ifdef FEAT_CRYPT
		&& options[opt_idx].indir != PV_KEY
# endif
		)
	    saved_oldval = vim_strsave(oldval);
#endif
	if ((r = did_set_string_option(opt_idx, varp, TRUE, oldval, NULL,
							   opt_flags)) == NULL)
	    did_set_option(opt_idx, opt_flags, TRUE);

	/* call autocomamnd after handling side effects */
#if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
	if (saved_oldval != NULL)
	{
	    char_u buf_type[7];
	    sprintf((char *)buf_type, "%s",
		(opt_flags & OPT_LOCAL) ? "local" : "global");
	    set_vim_var_string(VV_OPTION_NEW, *varp, -1);
	    set_vim_var_string(VV_OPTION_OLD, saved_oldval, -1);
	    set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
	    apply_autocmds(EVENT_OPTIONSET, (char_u *)options[opt_idx].fullname, NULL, FALSE, NULL);
	    reset_v_option_vars();
	    vim_free(saved_oldval);
	}
#endif
    }
    return r;
}

Project: vim
File: option.c

langmap_adjust_mb(int c)
{
    langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
    int a = 0;
    int b = langmap_mapga.ga_len;

    while (a != b)
    {
	int i = (a + b) / 2;
	int d = entries[i].from - c;

	if (d == 0)
	    return entries[i].to;  /* found matching entry */
	if (d < 0)
	    a = i + 1;
	else
	    b = i;
    }
    return c;  /* no entry found, return "c" unmodified */
}

Project: vim
File: option.c

option_expand(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.
     * For 'spellsuggest' expand after "file:".
     */
    expand_env_esc(val, NameBuff, MAXPATHL,
	    (char_u **)options[opt_idx].var == &p_tags, FALSE,
#ifdef FEAT_SPELL
	    (char_u **)options[opt_idx].var == &p_sps ? (char_u *)"file:" :
#endif
				  NULL);
    if (STRCMP(NameBuff, val) == 0)   /* they are the same */
	return NULL;

    return NameBuff;
}

Project: vim
File: option.c

file_ff_differs(buf_T *buf, int ignore_empty)
{
    /* In a buffer that was never loaded the options are not valid. */
    if (buf->b_flags & BF_NEVERLOADED)
	return FALSE;
    if (ignore_empty
	    && (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_p_fixeol) && buf->b_start_eol != buf->b_p_eol)
	return TRUE;
#ifdef FEAT_MBYTE
    if (!buf->b_p_bin && buf->b_start_bomb != buf->b_p_bomb)
	return TRUE;
    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
}

Project: vim
File: option.c

option_iter_next(void **option, int opt_type)
{
    struct vimoption	*ret = NULL;
    do
    {
	if (*option == NULL)
	    *option = (void *) options;
	else if (((struct vimoption *) (*option))->fullname == NULL)
	{
	    *option = NULL;
	    return NULL;
	}
	else
	    *option = (void *) (((struct vimoption *) (*option)) + 1);

	ret = ((struct vimoption *) (*option));

	/* Hidden option */
	if (ret->var == NULL)
	{
	    ret = NULL;
	    continue;
	}

	switch (opt_type)
	{
	    case SREQ_GLOBAL:
		if (!(ret->indir == PV_NONE || ret->indir & PV_BOTH))
		    ret = NULL;
		break;
	    case SREQ_BUF:
		if (!(ret->indir & PV_BUF))
		    ret = NULL;
		break;
	    case SREQ_WIN:
		if (!(ret->indir & PV_WIN))
		    ret = NULL;
		break;
	    default:
		EMSG2(_(e_intern2), "option_iter_next()");
		return NULL;
	}
    }
    while (ret == NULL);

    return (char_u *)ret->fullname;
}

Project: vim
File: option.c

makeset(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;
    int			pri;

    /*
     * The options that don't have a default (terminal name, columns, lines)
     * are never written.  Terminal options are also not written.
     * Do the loop over "options[]" twice: once for options with the
     * P_PRI_MKRC flag and once without.
     */
    for (pri = 1; pri >= 0; --pri)
    {
      for (p = &options[0]; !istermoption(p); p++)
	if (!(p->flags & P_NO_MKRC)
		&& !istermoption(p)
		&& ((pri == 1) == ((p->flags & P_PRI_MKRC) != 0)))
	{
	    /* 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 */
		{
#if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
		    int		do_endif = FALSE;

		    /* Don't set 'syntax' and 'filetype' again if the value is
		     * already right, avoids reloading the syntax file. */
		    if (
# if defined(FEAT_SYN_HL)
			    p->indir == PV_SYN
#  if defined(FEAT_AUTOCMD)
			    ||
#  endif
# endif
# if defined(FEAT_AUTOCMD)
			    p->indir == PV_FT
# endif
			    )
		    {
			if (fprintf(fd, "if &%s != '%s'", p->fullname,
						       *(char_u **)(varp)) < 0
				|| put_eol(fd) < 0)
			    return FAIL;
			do_endif = TRUE;
		    }
#endif
		    if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
					  (p->flags & P_EXPAND) != 0) == FAIL)
			return FAIL;
#if defined(FEAT_SYN_HL) || defined(FEAT_AUTOCMD)
		    if (do_endif)
		    {
			if (put_line(fd, "endif") == FAIL)
			    return FAIL;
		    }
#endif
		}
	    }
	}
    }
    return OK;
}

Project: vim
File: option.c

set_context_in_set_cmd(
    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 && STRNCMP(p, "novice", 6) != 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_pp
		|| 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;
	    }
	}

#ifdef FEAT_SPELL
	/* for 'spellsuggest' start at "file:" */
	if (options[opt_idx].var == (char_u *)&p_sps
					       && STRNCMP(p, "file:", 5) == 0)
	{
	    xp->xp_pattern = p + 5;
	    break;
	}
#endif
    }

    return;
}

Project: vim
File: option.c

    p_term("t_8b", T_8B)

/* terminal key codes are not in here */

    /* end marker */
    {NULL, NULL, 0, NULL, PV_NONE, {NULL, NULL} SCRIPTID_INIT}

Project: vim
File: option.c

option_value2string(
    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 */
	else 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
	    vim_strncpy(NameBuff, varp, MAXPATHL - 1);
    }
}

Project: vim
File: option.c

set_options_bin(
    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;
	}
    }
}

Project: vim
File: option.c

ExpandSettings(
    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 < (int)(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;
}

Project: vim
File: option.c

put_setbool(
    FILE	*fd,
    char	*cmd,
    char	*name,
    int		value)
{
    if (value < 0)	/* global/local option using global value */
	return OK;
    if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
	    || put_eol(fd) < 0)
	return FAIL;
    return OK;
}

Project: vim
File: option.c

did_set_option(
    int	    opt_idx,
    int	    opt_flags,	    /* possibly with OPT_MODELINE */
    int	    new_value)	    /* value was replaced completely */
{
    long_u	*p;

    options[opt_idx].flags |= P_WAS_SET;

    /* When an option is set in the sandbox, from a modeline or in secure mode
     * set the P_INSECURE flag.  Otherwise, if a new value is stored reset the
     * flag. */
    p = insecure_flag(opt_idx, opt_flags);
    if (secure
#ifdef HAVE_SANDBOX
	    || sandbox != 0
#endif
	    || (opt_flags & OPT_MODELINE))
	*p = *p | P_INSECURE;
    else if (new_value)
	*p = *p & ~P_INSECURE;
}