option.c

VIM文本编辑器

#if defined(UNIX) && defined(USE_SYSTEM) && !defined(__EMX__)
			    (char_u *)"\"",
#else
			    (char_u *)"",
#endif
				(char_u *)0L}},
    {"shiftround",  "sr",   P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_sr,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"shiftwidth",  "sw",   P_NUM|P_IND|P_VI_DEF,
			    (char_u *)PV_SW,
			    {(char_u *)8L, (char_u *)0L}},
    {"shortmess",   "shm",  P_STRING|P_VI_DEF|P_VIM,
			    (char_u *)&p_shm,
			    {(char_u *)"", (char_u *)0L}},
    {"shortname",   "sn",   P_BOOL|P_IND|P_VI_DEF,
#ifdef SHORT_FNAME
			    (char_u *)NULL,
#else
			    (char_u *)PV_SN,
#endif
			    {(char_u *)FALSE, (char_u *)0L}},
    {"showbreak",   "sbr",  P_STRING|P_VI_DEF|P_RALL,
			    (char_u *)&p_sbr,
			    {(char_u *)"", (char_u *)0L}},
    {"showcmd",	    "sc",   P_BOOL|P_VIM,
			    (char_u *)&p_sc,
			    {(char_u *)FALSE,
#ifdef UNIX
				(char_u *)FALSE
#else
				(char_u *)TRUE
#endif
				}},
    {"showfulltag", "sft",  P_BOOL|P_VI_DEF,
			    (char_u *)&p_sft,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"showmatch",   "sm",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_sm,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"showmode",    "smd",  P_BOOL|P_VIM,
			    (char_u *)&p_smd,
			    {(char_u *)FALSE, (char_u *)TRUE}},
    {"sidescroll",  "ss",   P_NUM|P_VI_DEF,
			    (char_u *)&p_ss,
			    {(char_u *)0L, (char_u *)0L}},
    {"slowopen",    "slow", P_BOOL|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"smartcase",   "scs",  P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_scs,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"smartindent", "si",   P_BOOL|P_IND|P_VI_DEF|P_VIM,
#ifdef SMARTINDENT
			    (char_u *)PV_SI,
#else
			    (char_u *)NULL,
#endif
			    {(char_u *)FALSE, (char_u *)0L}},
    {"smarttab",    "sta",  P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_sta,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"softtabstop", "sts",  P_NUM|P_IND|P_VI_DEF|P_VIM,
			    (char_u *)PV_STS,
			    {(char_u *)0L, (char_u *)0L}},
    {"sourceany",   NULL,   P_BOOL|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"splitbelow",  "sb",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_sb,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"startofline", "sol",  P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_sol,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"suffixes",    "su",   P_STRING|P_VI_DEF|P_COMMA,
			    (char_u *)&p_su,
			    {(char_u *)".bak,~,.o,.h,.info,.swp",
				(char_u *)0L}},
    {"swapfile",    "swf",  P_BOOL|P_IND|P_VI_DEF|P_RSTAT,
			    (char_u *)PV_SWF,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"swapsync",    "sws",  P_STRING|P_VI_DEF,
			    (char_u *)&p_sws,
			    {(char_u *)"fsync", (char_u *)0L}},
    {"syntax",	    "syn",  P_STRING|P_IND|P_ALLOCED|P_VI_DEF,
#ifdef SYNTAX_HL
			    (char_u *)PV_SYN,
			    {(char_u *)"", (char_u *)0L}
#else
			    (char_u *)NULL,
			    {(char_u *)0L, (char_u *)0L}
#endif
			    },
    {"tabstop",	    "ts",   P_NUM|P_IND|P_VI_DEF|P_RBUF,
			    (char_u *)PV_TS,
			    {(char_u *)8L, (char_u *)0L}},
    {"tagbsearch",  "tbs",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_tbs,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"taglength",   "tl",   P_NUM|P_VI_DEF,
			    (char_u *)&p_tl,
			    {(char_u *)0L, (char_u *)0L}},
    {"tagrelative", "tr",   P_BOOL|P_VIM,
			    (char_u *)&p_tr,
			    {(char_u *)FALSE, (char_u *)TRUE}},
    {"tags",	    "tag",  P_STRING|P_EXPAND|P_VI_DEF|P_COMMA,
			    (char_u *)&p_tags,
			    {
#ifdef EMACS_TAGS
			    (char_u *)"./tags,./TAGS,tags,TAGS",
#else
			    (char_u *)"./tags,tags",
#endif
				(char_u *)0L}},
    {"tagstack",    "tgst", P_BOOL|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"term",	    NULL,   P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
			    (char_u *)&T_NAME,
			    {(char_u *)"", (char_u *)0L}},
    {"terse",	    NULL,   P_BOOL|P_VI_DEF,
			    (char_u *)&p_terse,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"textauto",    "ta",   P_BOOL|P_VIM,
			    (char_u *)&p_ta,
			    {(char_u *)TA_DFLT, (char_u *)TRUE}},
    {"textmode",    "tx",   P_BOOL|P_IND|P_VI_DEF,
			    (char_u *)PV_TX,
			    {
#ifdef USE_CRNL
			    (char_u *)TRUE,
#else
			    (char_u *)FALSE,
#endif
				(char_u *)0L}},
    {"textwidth",   "tw",   P_NUM|P_IND|P_VI_DEF|P_VIM,
			    (char_u *)PV_TW,
			    {(char_u *)0L, (char_u *)0L}},
    {"tildeop",	    "top",  P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_to,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"timeout",	    "to",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_timeout,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"timeoutlen",  "tm",   P_NUM|P_VI_DEF,
			    (char_u *)&p_tm,
			    {(char_u *)1000L, (char_u *)0L}},
    {"title",	    NULL,   P_BOOL|P_VI_DEF,
			    (char_u *)&p_title,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"titlelen",    NULL,   P_NUM|P_VI_DEF,
			    (char_u *)&p_titlelen,
			    {(char_u *)85L, (char_u *)0L}},
    {"titlestring", NULL,   P_STRING|P_VI_DEF,
			    (char_u *)&p_titlestring,
			    {(char_u *)"", (char_u *)0L}},
    {"ttimeout",    NULL,   P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_ttimeout,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"ttimeoutlen", "ttm",  P_NUM|P_VI_DEF,
			    (char_u *)&p_ttm,
			    {(char_u *)-1L, (char_u *)0L}},
    {"ttybuiltin",  "tbi",  P_BOOL|P_VI_DEF,
			    (char_u *)&p_tbi,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"ttyfast",	    "tf",   P_BOOL|P_NO_MKRC|P_VI_DEF,
			    (char_u *)&p_tf,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"ttyscroll",   "tsl",  P_NUM|P_VI_DEF,
			    (char_u *)&p_ttyscroll,
			    {(char_u *)999L, (char_u *)0L}},
    {"ttytype",	    "tty",  P_STRING|P_EXPAND|P_NODEFAULT|P_NO_MKRC|P_VI_DEF|P_RALL,
			    (char_u *)&T_NAME,
			    {(char_u *)"", (char_u *)0L}},
    {"ttymouse",    "ttym", P_STRING|P_NODEFAULT|P_NO_MKRC|P_VI_DEF,
			    (char_u *)&p_ttym,
			    {(char_u *)"", (char_u *)0L}},
    {"undolevels",  "ul",   P_NUM|P_VI_DEF,
			    (char_u *)&p_ul,
			    {
#if defined(UNIX) || defined(WIN32) || defined(OS2)
			    (char_u *)1000L,
#else
			    (char_u *)100L,
#endif
				(char_u *)0L}},
    {"updatecount", "uc",   P_NUM|P_VI_DEF,
			    (char_u *)&p_uc,
			    {(char_u *)200L, (char_u *)0L}},
    {"updatetime",  "ut",   P_NUM|P_VI_DEF,
			    (char_u *)&p_ut,
			    {(char_u *)4000L, (char_u *)0L}},
    {"verbose",	    "vbs",  P_NUM|P_VI_DEF,
			    (char_u *)&p_verbose,
			    {(char_u *)0L, (char_u *)0L}},
    {"viminfo",	    "vi",   P_STRING|P_VI_DEF|P_COMMA,
#ifdef VIMINFO
			    (char_u *)&p_viminfo,
#else
			    (char_u *)NULL,
#endif /* VIMINFO */
			    {(char_u *)"", (char_u *)0L}},
    {"visualbell",  "vb",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_vb,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"w300",	    NULL,   P_NUM|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)0L, (char_u *)0L}},
    {"w1200",	    NULL,   P_NUM|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)0L, (char_u *)0L}},
    {"w9600",	    NULL,   P_NUM|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)0L, (char_u *)0L}},
    {"warn",	    NULL,   P_BOOL|P_VI_DEF,
			    (char_u *)&p_warn,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"weirdinvert", "wiv",  P_BOOL|P_VI_DEF|P_RALL,
			    (char_u *)&p_wiv,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"whichwrap",   "ww",   P_STRING|P_VIM|P_COMMA,
			    (char_u *)&p_ww,
			    {(char_u *)"", (char_u *)"b,s"}},
    {"wildchar",    "wc",   P_NUM|P_VIM,
			    (char_u *)&p_wc,
			    {(char_u *)(long)Ctrl('E'), (char_u *)(long)TAB}},
    {"wildignore",  "wig",  P_STRING|P_VI_DEF|P_COMMA,
#ifdef WILDIGNORE
			    (char_u *)&p_wig,
#else
			    (char_u *)NULL,
#endif
			    {(char_u *)"", (char_u *)0L}},
    {"wildmode",    "wim",  P_STRING|P_VI_DEF|P_COMMA,
			    (char_u *)&p_wim,
			    {(char_u *)"full", (char_u *)0L}},
    {"winaltkeys",  "wak",  P_STRING|P_VI_DEF,
#if defined(USE_GUI_WIN32) || defined(USE_GUI_MOTIF)
			    (char_u *)&p_wak,
			    {(char_u *)"menu", (char_u *)0L}
#else
			    (char_u *)NULL,
			    {(char_u *)NULL, (char_u *)0L}
#endif
			    },
    {"window",	    "wi",   P_NUM|P_VI_DEF,
			    (char_u *)NULL,
			    {(char_u *)0L, (char_u *)0L}},
    {"winheight",   "wh",   P_NUM|P_VI_DEF,
			    (char_u *)&p_wh,
			    {(char_u *)1L, (char_u *)0L}},
    {"winminheight", "wmh", P_NUM|P_VI_DEF,
			    (char_u *)&p_wmh,
			    {(char_u *)1L, (char_u *)0L}},
    {"wrap",	    NULL,   P_BOOL|P_IND|P_VI_DEF|P_RBUF,
			    (char_u *)PV_WRAP,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"wrapmargin",  "wm",   P_NUM|P_IND|P_VI_DEF,
			    (char_u *)PV_WM,
			    {(char_u *)0L, (char_u *)0L}},
    {"wrapscan",    "ws",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_ws,
			    {(char_u *)TRUE, (char_u *)0L}},
    {"writeany",    "wa",   P_BOOL|P_VI_DEF,
			    (char_u *)&p_wa,
			    {(char_u *)FALSE, (char_u *)0L}},
    {"writebackup", "wb",   P_BOOL|P_VI_DEF|P_VIM,
			    (char_u *)&p_wb,
			    {
#ifdef WRITEBACKUP
			    (char_u *)TRUE,
#else
			    (char_u *)FALSE,
#endif
				(char_u *)0L}},
    {"writedelay",  "wd",   P_NUM|P_VI_DEF,
			    (char_u *)&p_wd,
			    {(char_u *)0L, (char_u *)0L}},

/* terminal output codes */
#define p_term(sss, vvv)   {sss, NULL, P_STRING|P_VI_DEF|P_RALL, \
			    (char_u *)&vvv, \
			    {(char_u *)"", (char_u *)0L}},

    p_term("t_AB", T_CAB)
    p_term("t_AF", T_CAF)
    p_term("t_AL", T_CAL)
    p_term("t_al", T_AL)
    p_term("t_bc", T_BC)
    p_term("t_cd", T_CD)
    p_term("t_ce", T_CE)
    p_term("t_cl", T_CL)
    p_term("t_cm", T_CM)
    p_term("t_Co", T_CCO)
    p_term("t_CS", T_CCS)
    p_term("t_cs", T_CS)
    p_term("t_da", T_DA)
    p_term("t_db", T_DB)
    p_term("t_DL", T_CDL)
    p_term("t_dl", T_DL)
    p_term("t_ke", T_KE)
    p_term("t_ks", T_KS)
    p_term("t_le", T_LE)
    p_term("t_mb", T_MB)
    p_term("t_md", T_MD)
    p_term("t_me", T_ME)
    p_term("t_mr", T_MR)
    p_term("t_ms", T_MS)
    p_term("t_nd", T_ND)
    p_term("t_op", T_OP)
    p_term("t_RI", T_CRI)
    p_term("t_Sb", T_CSB)
    p_term("t_Sf", T_CSF)
    p_term("t_se", T_SE)
    p_term("t_so", T_SO)
    p_term("t_sr", T_SR)
    p_term("t_te", T_TE)
    p_term("t_ti", T_TI)
    p_term("t_ue", T_UE)
    p_term("t_us", T_US)
    p_term("t_vb", T_VB)
    p_term("t_ve", T_VE)
    p_term("t_vi", T_VI)
    p_term("t_vs", T_VS)
    p_term("t_xs", T_XS)
    p_term("t_ZH", T_CZH)
    p_term("t_ZR", T_CZR)

/* terminal key codes are not in here */

    {NULL, NULL, 0, NULL, {NULL, NULL}}		/* end marker */
};

#define PARAM_COUNT (sizeof(options) / sizeof(struct vimoption))

static char *(p_bg_values[]) = {"light", "dark", NULL};
static char *(p_nf_values[]) = {"octal", "hex", NULL};
static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL};
#ifdef MULTI_BYTE
static char *(p_fe_values[]) = {FE_ANSI, FE_UNICODE, FE_DBJPN, FE_DBKOR,
    FE_DBCHT, FE_DBCHS, FE_HEBREW, FE_FARSI , NULL};
#endif
#if defined(USE_GUI_WIN32) || defined(USE_GUI_MOTIF)
static char *(p_wak_values[]) = {"yes", "menu", "no", NULL};
#endif
static char *(p_sessopt_values[]) = {"resize", "winsize", "options", NULL};
static char *(p_mousem_values[]) = {"extend", "popup", "mac", NULL};
static char *(p_slm_values[]) = {"mouse", "key", "cmd", NULL};
static char *(p_sel_values[]) = {"inclusive", "exclusive", "old", NULL};
static char *(p_km_values[]) = {"startsel", "stopsel", NULL};
static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL};

static void set_option_default __ARGS((int, int));
static void set_options_default __ARGS((int dofree));
static void illegal_char __ARGS((char_u *, int));
static void did_set_title __ARGS((int icon));
static char_u *option_expand __ARGS((int));
static void set_string_option __ARGS((int opt_idx, char_u *value));
static char_u *did_set_string_option __ARGS((int opt_idx, char_u **varp, int new_value_alloced, char_u *oldval, char_u *errbuf));
static char_u *set_bool_option __ARGS((int opt_idx, char_u *varp, int value));
static char_u *set_num_option __ARGS((int opt_idx, char_u *varp, long value, char_u *errbuf));
static void check_redraw __ARGS((int flags));
static int findoption __ARGS((char_u *));
static int find_key_option __ARGS((char_u *));
static void showoptions __ARGS((int));
static int option_not_default __ARGS((struct vimoption *));
static void showoneopt __ARGS((struct vimoption *));
static int  istermoption __ARGS((struct vimoption *));
static char_u *get_varp __ARGS((struct vimoption *));
static void option_value2string __ARGS((struct vimoption *));
#ifdef HAVE_LANGMAP
static void langmap_init __ARGS((void));
static void langmap_set __ARGS((void));
#endif
static void paste_option_changed __ARGS((void));
static void compatible_set __ARGS((void));
static void fill_breakat_flags __ARGS((void));
static int check_opt_strings __ARGS((char_u *val, char **values, int));
static int check_opt_wim __ARGS((void));

/*
 * Initialize the options, first part.
 *
 * Called only once from main(), just after creating the first buffer.
 */
    void
set_init_1()
{
    char_u  *p;
    int	    opt_idx;
    long    n;

#ifdef HAVE_LANGMAP
    langmap_init();
#endif

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

    /*
     * Find default value for 'shell' option.
     */
    if ((p = mch_getenv((char_u *)"SHELL")) != NULL
#if defined(MSDOS) || defined(WIN32) || defined(OS2)
# ifdef __EMX__
	    || (p = mch_getenv((char_u *)"EMXSHELL")) != NULL
# endif
	    || (p = mch_getenv((char_u *)"COMSPEC")) != NULL
# ifdef WIN32
	    || (p = default_shell()) != NULL
# endif
#endif
							    )
    {
	set_string_default("sh", p);
    }

    /*
     * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory
     */
    opt_idx = findoption((char_u *)"maxmemtot");
    if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L)
    {
	n = (mch_avail_mem(FALSE) >> 11);
	options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
	opt_idx = findoption((char_u *)"maxmem");
	if ((long)options[opt_idx].def_val[VI_DEFAULT] > n
			  || (long)options[opt_idx].def_val[VI_DEFAULT] == 0L)
	    options[opt_idx].def_val[VI_DEFAULT] = (char_u *)n;
    }

#ifdef USE_GUI_WIN32
    /* force 'shortname' for Win32s */
    if (gui_is_win32s())
	options[findoption((char_u *)"shortname")].def_val[VI_DEFAULT] =
							       (char_u *)TRUE;
#endif

    /*
     * set all the options (except the terminal options) to their default value
     */
    set_options_default(FALSE);

#ifdef USE_GUI
    if (found_reverse_arg)
	set_option_value((char_u *)"bg", 0L, (char_u *)"dark");
#endif

    curbuf->b_p_initialized = TRUE;
    check_buf_options(curbuf);