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Diffstat (limited to '')
| -rw-r--r-- | src/option.c | 8193 |
1 files changed, 8193 insertions, 0 deletions
diff --git a/src/option.c b/src/option.c new file mode 100644 index 0000000..1203180 --- /dev/null +++ b/src/option.c @@ -0,0 +1,8193 @@ +/* vi:set ts=8 sts=4 sw=4 noet: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * Code to handle user-settable options. This is all pretty much table- + * driven. Checklist for adding a new option: + * - Put it in the options array in optiondefs.h (copy an existing entry). + * - For a global option: Add a variable for it in option.h. + * - For a buffer or window local option: + * - Add a PV_XX macro definition to the optiondefs.h file. + * - Add a variable to the window or buffer struct in structs.h. + * - For a window option, add some code to copy_winopt(). + * - For a window string option, add code to check_win_options() and + * clear_winopt(). + * - For a buffer option, add some code to buf_copy_options(). + * - For a buffer string option, add code to check_buf_options(). + * - If it's a numeric option, add any necessary bounds checks to + * set_num_option(). + * - If it's a list of flags, add some code in did_set_string_option(), search + * for WW_ALL. + * - When adding an option with expansion (P_EXPAND), but with a different + * default for Vi and Vim (no P_VI_DEF), add some code at VIMEXP. + * - Add documentation! One line in doc/quickref.txt, full description in + * options.txt, and any other related places. + * - Add an entry in runtime/optwin.vim. + * When making changes: + * - Adjust the help for the option in doc/option.txt. + * - When an entry has the P_VIM flag, or is lacking the P_VI_DEF flag, add a + * comment at the help for the 'compatible' option. + */ + +#define IN_OPTION_C +#include "vim.h" +#include "optiondefs.h" + +static void set_options_default(int opt_flags); +static void set_string_default_esc(char *name, char_u *val, int escape); +static char_u *find_dup_item(char_u *origval, char_u *newval, long_u flags); +static char_u *option_expand(int opt_idx, char_u *val); +static void didset_options(void); +static void didset_options2(void); +#if defined(FEAT_EVAL) || defined(PROTO) +static long_u *insecure_flag(int opt_idx, int opt_flags); +#else +# define insecure_flag(opt_idx, opt_flags) (&options[opt_idx].flags) +#endif +static char *set_bool_option(int opt_idx, char_u *varp, int value, int opt_flags); +static char *set_num_option(int opt_idx, char_u *varp, long value, char *errbuf, size_t errbuflen, int opt_flags); +static int find_key_option(char_u *arg_arg, int has_lt); +static void showoptions(int all, int opt_flags); +static int optval_default(struct vimoption *, char_u *varp, int compatible); +static void showoneopt(struct vimoption *, int opt_flags); +static int put_setstring(FILE *fd, char *cmd, char *name, char_u **valuep, long_u flags); +static int put_setnum(FILE *fd, char *cmd, char *name, long *valuep); +static int put_setbool(FILE *fd, char *cmd, char *name, int value); +static int istermoption(struct vimoption *p); +static char_u *get_varp_scope(struct vimoption *p, int scope); +static char_u *get_varp(struct vimoption *); +static void check_win_options(win_T *win); +static void option_value2string(struct vimoption *, int scope); +static void check_winopt(winopt_T *wop); +static int wc_use_keyname(char_u *varp, long *wcp); +static void paste_option_changed(void); +static void compatible_set(void); + +/* + * Initialize the 'shell' option to a default value. + */ + static void +set_init_default_shell(void) +{ + char_u *p; + + // 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) + || ((p = (char_u *)default_shell()) != NULL && *p != NUL) +#endif + ) +#if defined(MSWIN) + { + // For MS-Windows put the path in quotes instead of escaping spaces. + char_u *cmd; + size_t len; + + if (vim_strchr(p, ' ') != NULL) + { + len = STRLEN(p) + 3; // two quotes and a trailing NUL + cmd = alloc(len); + if (cmd != NULL) + { + vim_snprintf((char *)cmd, len, "\"%s\"", p); + set_string_default("sh", cmd); + vim_free(cmd); + } + } + else + set_string_default("sh", p); + } +#else + set_string_default_esc("sh", p, TRUE); +#endif +} + +/* + * Set the default for 'backupskip' to include environment variables for + * temp files. + */ + static void +set_init_default_backupskip(void) +{ + int opt_idx; + long_u n; + char_u *p; +#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; + char_u *item; + + opt_idx = findoption((char_u *)"backupskip"); + + ga_init2(&ga, 1, 100); + for (n = 0; n < (long)ARRAY_LENGTH(names); ++n) + { + mustfree = FALSE; +#ifdef UNIX + if (*names[n] == NUL) +# ifdef MACOS_X + p = (char_u *)"/private/tmp"; +# else + p = (char_u *)"/tmp"; +# endif + 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; + item = alloc(len); + STRCPY(item, p); + add_pathsep(item); + STRCAT(item, "*"); + if (find_dup_item(ga.ga_data, item, options[opt_idx].flags) + == NULL + && ga_grow(&ga, len) == OK) + { + if (ga.ga_len > 0) + STRCAT(ga.ga_data, ","); + STRCAT(ga.ga_data, item); + ga.ga_len += len; + } + vim_free(item); + } + if (mustfree) + vim_free(p); + } + if (ga.ga_data != NULL) + { + set_string_default("bsk", ga.ga_data); + vim_free(ga.ga_data); + } +} + +/* + * Initialize the 'maxmemtot' and 'maxmem' options to a default value. + * 'maxmemtot' and 'maxmem' may have to be adjusted for available memory. + */ + static void +set_init_default_maxmemtot(void) +{ + int opt_idx; + long_u n; + + opt_idx = findoption((char_u *)"maxmemtot"); + if (opt_idx < 0) + return; + +#if !defined(HAVE_AVAIL_MEM) && !defined(HAVE_TOTAL_MEM) + if (options[opt_idx].def_val[VI_DEFAULT] == (char_u *)0L) +#endif + { +#if defined(HAVE_AVAIL_MEM) + // Use amount of memory available at this moment. + n = (mch_avail_mem(FALSE) >> 1); +#elif defined(HAVE_TOTAL_MEM) + // Use amount of memory available to Vim. + n = (mch_total_mem(FALSE) >> 1); +#else + n = (0x7fffffff >> 11); +#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; + } + } +} + +/* + * Initialize the 'cdpath' option to a default value. + */ + static void +set_init_default_cdpath(void) +{ + int opt_idx; + char_u *cdpath; + char_u *buf; + int i; + int j; + int mustfree = FALSE; + + cdpath = vim_getenv((char_u *)"CDPATH", &mustfree); + if (cdpath == NULL) + return; + + buf = alloc((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); +} + +/* + * Initialize the 'printencoding' option to a default value. + */ + static void +set_init_default_printencoding(void) +{ +#if defined(FEAT_POSTSCRIPT) && \ + (defined(MSWIN) || defined(VMS) || 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" +# elif defined(VMS) + (char_u *)"dec-mcs" +# elif defined(MAC) + (char_u *)"mac-roman" +# else // HPUX + (char_u *)"hp-roman8" +# endif + ); +#endif +} + +#ifdef FEAT_POSTSCRIPT +/* + * Initialize the 'printexpr' option to a default value. + */ + static void +set_init_default_printexpr(void) +{ + // '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)" +# elif defined(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 + +#ifdef UNIX +/* + * Force restricted-mode on for "nologin" or "false" $SHELL + */ + static void +set_init_restricted_mode(void) +{ + char_u *p; + + p = get_isolated_shell_name(); + if (p == NULL) + return; + if (fnamecmp(p, "nologin") == 0 || fnamecmp(p, "false") == 0) + restricted = TRUE; + vim_free(p); +} +#endif + +#ifdef CLEAN_RUNTIMEPATH +/* + * When Vim is started with the "--clean" argument, set the default value + * for the 'runtimepath' and 'packpath' options. + */ + static void +set_init_clean_rtp(void) +{ + int opt_idx; + + opt_idx = findoption((char_u *)"runtimepath"); + if (opt_idx >= 0) + { + options[opt_idx].def_val[VI_DEFAULT] = (char_u *)CLEAN_RUNTIMEPATH; + p_rtp = (char_u *)CLEAN_RUNTIMEPATH; + } + opt_idx = findoption((char_u *)"packpath"); + if (opt_idx < 0) + return; + options[opt_idx].def_val[VI_DEFAULT] = (char_u *)CLEAN_RUNTIMEPATH; + p_pp = (char_u *)CLEAN_RUNTIMEPATH; +} +#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. + */ + static void +set_init_expand_env(void) +{ + int opt_idx; + char_u *p; + + for (opt_idx = 0; !istermoption_idx(opt_idx); opt_idx++) + { + if ((options[opt_idx].flags & P_GETTEXT) + && options[opt_idx].var != NULL) + p = (char_u *)_(*(char **)options[opt_idx].var); + else + p = option_expand(opt_idx, NULL); + if (p != NULL && (p = vim_strsave(p)) != NULL) + { + *(char_u **)options[opt_idx].var = p; + // VIMEXP + // Defaults for all expanded options are currently the same for Vi + // and Vim. When this changes, add some code here! Also need to + // split P_DEF_ALLOCED in two. + if (options[opt_idx].flags & P_DEF_ALLOCED) + vim_free(options[opt_idx].def_val[VI_DEFAULT]); + options[opt_idx].def_val[VI_DEFAULT] = p; + options[opt_idx].flags |= P_DEF_ALLOCED; + } + } +} + +/* + * Initialize the 'LANG' environment variable to a default value. + */ + static void +set_init_lang_env(void) +{ +#if defined(MSWIN) && 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]; + long_u n; + + // 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); + } + } +#elif defined(MACOS_CONVERT) + // Moved to os_mac_conv.c to avoid dependency problems. + mac_lang_init(); +#endif +} + +/* + * Initialize the 'encoding' option to a default value. + */ + static void +set_init_default_encoding(void) +{ + char_u *p; + int opt_idx; + +# ifdef MSWIN + // MS-Windows has builtin support for conversion to and from Unicode, using + // "utf-8" for 'encoding' should work best for most users. + p = vim_strsave((char_u *)ENC_DFLT); +# else + // enc_locale() will try to find the encoding of the current locale. + // This works best for properly configured systems, old and new. + p = enc_locale(); +# endif + if (p == NULL) + return; + + // Try setting 'encoding' and check if the value is valid. + // If not, go back to the default encoding. + char_u *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_X) || defined(VMS) + if (STRCMP(p_enc, "latin1") == 0 || enc_utf8) + { + // 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(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL)) + // Win32 console: When GetACP() returns a different value from + // GetConsoleCP() set 'termencoding'. + if ( +# ifdef VIMDLL + (!gui.in_use && !gui.starting) && +# endif + GetACP() != GetConsoleCP()) + { + char buf[50]; + + // Win32 console: In ConPTY, GetConsoleCP() returns zero. + // Use an alternative value. + if (GetConsoleCP() == 0) + sprintf(buf, "cp%ld", (long)GetACP()); + else + 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(MSWIN) + // $HOME may have characters in active code page. + init_homedir(); +#endif + } + else + { + vim_free(p_enc); + p_enc = save_enc; + } +} + +/* + * Initialize the options, first part. + * + * Called only once from main(), just after creating the first buffer. + * If "clean_arg" is TRUE Vim was started with --clean. + */ + void +set_init_1(int clean_arg) +{ +#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 *)SHM_POSIX); + } + + set_init_default_shell(); + set_init_default_backupskip(); + set_init_default_maxmemtot(); + set_init_default_cdpath(); + set_init_default_printencoding(); +#ifdef FEAT_POSTSCRIPT + set_init_default_printexpr(); +#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 UNIX + set_init_restricted_mode(); +#endif + +#ifdef CLEAN_RUNTIMEPATH + if (clean_arg) + set_init_clean_rtp(); +#endif + +#ifdef FEAT_GUI + if (found_reverse_arg) + set_option_value_give_err((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 + + set_init_default_encoding(); + + // Expand environment variables and things like "~" for the defaults. + set_init_expand_env(); + + 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_give_err((char_u *)"tbidi", 1L, NULL, 0); +#endif + + didset_options2(); + + set_init_lang_env(); + +#ifdef FEAT_MULTI_LANG + // Set the default for 'helplang'. + set_helplang_default(get_mess_lang()); +#endif +} + +static char_u *fencs_utf8_default = (char_u *)"ucs-bom,utf-8,default,latin1"; + +/* + * Set the "fileencodings" option to the default value for when 'encoding' is + * utf-8. + */ + void +set_fencs_unicode(void) +{ + set_string_option_direct((char_u *)"fencs", -1, fencs_utf8_default, + OPT_FREE, 0); +} + +/* + * Set an option to its default value. + * This does not take care of side effects! + */ + static void +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) + { + // 'fencs' default value depends on 'encoding' + if (options[opt_idx].var == (char_u *)&p_fencs && enc_utf8) + set_fencs_unicode(); + // Use set_string_option_direct() for local options to handle + // freeing and allocating the value. + else 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 def_val = (long)(long_i)options[opt_idx].def_val[dvi]; + + if ((long *)varp == &curwin->w_p_so + || (long *)varp == &curwin->w_p_siso) + // 'scrolloff' and 'sidescrolloff' local values have a + // different default value than the global default. + *(long *)varp = -1; + else + *(long *)varp = def_val; + // May also set global value for local option. + if (both) + *(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = + def_val; + } + } + 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_sctx_idx(opt_idx, opt_flags, current_sctx); +#endif +} + +/* + * Set all options (except terminal options) to their default value. + * When "opt_flags" is non-zero skip 'encoding'. + */ + static void +set_options_default( + int opt_flags) // OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL +{ + int i; + win_T *wp; + tabpage_T *tp; + + for (i = 0; !istermoption_idx(i); i++) + if (!(options[i].flags & P_NODEFAULT) + && (opt_flags == 0 + || (options[i].var != (char_u *)&p_enc +# if defined(FEAT_CRYPT) + && options[i].var != (char_u *)&p_cm + && options[i].var != (char_u *)&p_key +# endif + ))) + set_option_default(i, opt_flags, p_cp); + + // The 'scroll' option must be computed for all windows. + FOR_ALL_TAB_WINDOWS(tp, wp) + win_comp_scroll(wp); + parse_cino(curbuf); +} + +/* + * Set the Vi-default value of a string option. + * Used for 'sh', 'backupskip' and 'term'. + * When "escape" is TRUE escape spaces with a backslash. + */ + static void +set_string_default_esc(char *name, char_u *val, int escape) +{ + char_u *p; + int opt_idx; + + if (escape && vim_strchr(val, ' ') != NULL) + p = vim_strsave_escaped(val, (char_u *)" "); + else + p = vim_strsave(val); + if (p == NULL) // we don't want a NULL + return; + + opt_idx = findoption((char_u *)name); + if (opt_idx < 0) + return; + + 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; +} + + void +set_string_default(char *name, char_u *val) +{ + set_string_default_esc(name, val, FALSE); +} + +/* + * For an option value that contains comma separated items, find "newval" in + * "origval". Return NULL if not found. + */ + static char_u * +find_dup_item(char_u *origval, char_u *newval, long_u flags) +{ + int bs = 0; + size_t newlen; + char_u *s; + + if (origval == NULL) + return NULL; + + newlen = STRLEN(newval); + for (s = origval; *s != NUL; ++s) + { + if ((!(flags & P_COMMA) + || s == origval + || (s[-1] == ',' && !(bs & 1))) + && STRNCMP(s, newval, newlen) == 0 + && (!(flags & P_COMMA) + || s[newlen] == ',' + || s[newlen] == NUL)) + return s; + // 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; + } + return NULL; +} + +/* + * Set the Vi-default value of a number option. + * Used for 'lines' and 'columns'. + */ + void +set_number_default(char *name, long val) +{ + int opt_idx; + + opt_idx = findoption((char_u *)name); + if (opt_idx >= 0) + options[opt_idx].def_val[VI_DEFAULT] = (char_u *)(long_i)val; +} + +#if defined(FEAT_PROP_POPUP) || defined(PROTO) +/* + * Set all window-local and buffer-local options to the Vim default. + * local-global options will use the global value. + * When "do_buffer" is FALSE don't set buffer-local options. + */ + void +set_local_options_default(win_T *wp, int do_buffer) +{ + win_T *save_curwin = curwin; + int i; + + curwin = wp; + curbuf = curwin->w_buffer; + block_autocmds(); + + for (i = 0; !istermoption_idx(i); i++) + { + struct vimoption *p = &(options[i]); + char_u *varp = get_varp_scope(p, OPT_LOCAL); + + if (p->indir != PV_NONE + && (do_buffer || (p->indir & PV_BUF) == 0) + && !(options[i].flags & P_NODEFAULT) + && !optval_default(p, varp, FALSE)) + set_option_default(i, OPT_FREE|OPT_LOCAL, FALSE); + } + + unblock_autocmds(); + curwin = save_curwin; + curbuf = curwin->w_buffer; +} +#endif + +#if defined(EXITFREE) || defined(PROTO) +/* + * Free all options. + */ + void +free_all_options(void) +{ + int i; + + for (i = 0; !istermoption_idx(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 + clear_string_option((char_u **)options[i].var); + } + free_operatorfunc_option(); + free_tagfunc_option(); +} +#endif + + +/* + * Initialize the options, part two: After getting Rows and Columns and + * setting 'term'. + */ + void +set_init_2(void) +{ + int idx; + + // 'scroll' defaults to half the window height. The stored default is zero, + // which results in the actual value computed from the window height. + 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(MSWIN)) && !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(NULL); // parse 'printoptions' default value +#endif +} + +/* + * Initialize the options, part three: After reading the .vimrc + */ + void +set_init_3(void) +{ +#if defined(UNIX) || defined(MSWIN) +/* + * 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(MSWIN) // also check with .exe extension + || fnamecmp(p, "csh.exe") == 0 + || fnamecmp(p, "tcsh.exe") == 0 +# endif + ) + { +# if defined(FEAT_QUICKFIX) + if (do_sp) + { +# ifdef MSWIN + 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; + } + } +# ifdef MSWIN + // Windows PowerShell output is UTF-16 with BOM so re-encode to the + // current codepage. + else if ( fnamecmp(p, "powershell") == 0 + || fnamecmp(p, "powershell.exe") == 0 + ) + { +# if defined(FEAT_QUICKFIX) + if (do_sp) + { + p_sp = (char_u *)"2>&1 | Out-File -Encoding default"; + options[idx_sp].def_val[VI_DEFAULT] = p_sp; + } +# endif + if (do_srr) + { + p_srr = (char_u *)"2>&1 | Out-File -Encoding default"; + options[idx_srr].def_val[VI_DEFAULT] = p_srr; + } + } +#endif + else + // Always use POSIX 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 + || fnamecmp(p, "ash") == 0 + || fnamecmp(p, "dash") == 0 + || fnamecmp(p, "pwsh") == 0 +# ifdef MSWIN + || 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 + || fnamecmp(p, "dash.exe") == 0 + || fnamecmp(p, "pwsh.exe") == 0 +# endif + ) + { +# if defined(FEAT_QUICKFIX) + if (do_sp) + { +# ifdef MSWIN + p_sp = (char_u *)">%s 2>&1"; +# else + if (fnamecmp(p, "pwsh") == 0) + 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(MSWIN) + /* + * 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 values depend on shell (cmd.exe is default shell): + * + * p_shcf p_sxq + * cmd.exe - "/c" "(" + * powershell.exe - "-Command" "\"" + * pwsh.exe - "-c" "\"" + * "sh" like shells - "-c" "\"" + * + * For Win32 p_sxq is set instead of p_shq to include shell redirection. + */ + if (strstr((char *)gettail(p_sh), "powershell") != NULL) + { + int idx_opt; + + idx_opt = findoption((char_u *)"shcf"); + if (idx_opt >= 0 && !(options[idx_opt].flags & P_WAS_SET)) + { + p_shcf = (char_u*)"-Command"; + options[idx_opt].def_val[VI_DEFAULT] = p_shcf; + } + + idx_opt = findoption((char_u *)"sxq"); + if (idx_opt >= 0 && !(options[idx_opt].flags & P_WAS_SET)) + { + p_sxq = (char_u*)"\""; + options[idx_opt].def_val[VI_DEFAULT] = p_sxq; + } + } + else 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; + } + + // 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 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); + } + + set_title_defaults(); +} + +#if defined(FEAT_MULTI_LANG) || defined(PROTO) +/* + * When 'helplang' is still at its default value, set it to "lang". + * Only the first two characters of "lang" are used. + */ + void +set_helplang_default(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)) + return; + + 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]); + } + // any C like setting, such as C.UTF-8, becomes "en" + else if (STRLEN(p_hlg) >= 1 && *p_hlg == 'C') + { + p_hlg[0] = 'e'; + p_hlg[1] = 'n'; + } + p_hlg[2] = NUL; + } + options[idx].flags |= P_ALLOCED; +} +#endif + +/* + * 'title' and 'icon' only default to true if they have not been set or reset + * in .vimrc and we can read the old value. + * When 'title' and 'icon' have been reset in .vimrc, we won't even check if + * they can be reset. This reduces startup time when using X on a remote + * machine. + */ + void +set_title_defaults(void) +{ + int idx1; + long val; + + // If GUI is (going to be) used, we can always set the window title and + // icon name. Saves a bit of time, because the X11 display server does + // not need to be contacted. + idx1 = findoption((char_u *)"title"); + if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET)) + { +#ifdef FEAT_GUI + if (gui.starting || gui.in_use) + val = TRUE; + else +#endif + val = mch_can_restore_title(); + options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val; + p_title = val; + } + idx1 = findoption((char_u *)"icon"); + if (idx1 < 0 || (options[idx1].flags & P_WAS_SET)) + { + return; + } + +#ifdef FEAT_GUI + if (gui.starting || gui.in_use) + val = TRUE; + else +#endif + val = mch_can_restore_icon(); + options[idx1].def_val[VI_DEFAULT] = (char_u *)(long_i)val; + p_icon = val; +} + + void +ex_set(exarg_T *eap) +{ + int flags = 0; + + if (eap->cmdidx == CMD_setlocal) + flags = OPT_LOCAL; + else if (eap->cmdidx == CMD_setglobal) + flags = OPT_GLOBAL; +#if defined(FEAT_EVAL) && defined(FEAT_BROWSE) + if ((cmdmod.cmod_flags & CMOD_BROWSE) && flags == 0) + ex_options(eap); + else +#endif + { + if (eap->forceit) + flags |= OPT_ONECOLUMN; + (void)do_set(eap->arg, flags); + } +} + +/* + * :set operator types + */ +typedef enum { + OP_NONE = 0, + OP_ADDING, // "opt+=arg" + OP_PREPENDING, // "opt^=arg" + OP_REMOVING, // "opt-=arg" +} set_op_T; + +typedef enum { + PREFIX_NO = 0, // "no" prefix + PREFIX_NONE, // no prefix + PREFIX_INV, // "inv" prefix +} set_prefix_T; + +/* + * Return the prefix type for the option name in *argp. + */ + static set_prefix_T +get_option_prefix(char_u **argp) +{ + int prefix = PREFIX_NONE; + char_u *arg = *argp; + + if (STRNCMP(arg, "no", 2) == 0 && STRNCMP(arg, "novice", 6) != 0) + { + prefix = PREFIX_NO; + arg += 2; + } + else if (STRNCMP(arg, "inv", 3) == 0) + { + prefix = PREFIX_INV; + arg += 3; + } + + *argp = arg; + return prefix; +} + +/* + * Parse the option name in "arg" and return the option index in "*opt_idxp", + * and the option name length in "*lenp". For a <t_xx> option, return the key + * number in "*keyp". + * + * Returns FAIL if an option starting with "<" doesn't end with a ">", + * otherwise returns OK. + */ + static int +parse_option_name(char_u *arg, int *opt_idxp, int *lenp, int *keyp) +{ + int key = 0; + int len; + int opt_idx; + + if (*arg == '<') + { + 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] != '>') + return FAIL; + + 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, TRUE); + } + else + { + int nextchar; // next non-white char after option name + + 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, FALSE); + } + + *keyp = key; + *lenp = len; + *opt_idxp = opt_idx; + + return OK; +} + +/* + * Get the option operator (+=, ^=, -=). + */ + static set_op_T +get_opt_op(char_u *arg) +{ + set_op_T op = OP_NONE; + + if (*arg != NUL && *(arg + 1) == '=') + { + if (*arg == '+') + op = OP_ADDING; // "+=" + else if (*arg == '^') + op = OP_PREPENDING; // "^=" + else if (*arg == '-') + op = OP_REMOVING; // "-=" + } + + return op; +} + +/* + * Validate whether the value of the option in "opt_idx" can be changed. + * Returns FAIL if the option can be skipped or cannot be changed. Returns OK + * if it can be changed. + */ + static int +validate_opt_idx(int opt_idx, int opt_flags, long_u flags, char **errmsg) +{ + // 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)) + return FAIL; + + // Skip all options that are window-local (used for :vimgrep). + if ((opt_flags & OPT_NOWIN) && opt_idx >= 0 + && options[opt_idx].var == VAR_WIN) + return FAIL; + + // Disallow changing some options from modelines. + if (opt_flags & OPT_MODELINE) + { + if (flags & (P_SECURE | P_NO_ML)) + { + *errmsg = e_not_allowed_in_modeline; + return FAIL; + } + if ((flags & P_MLE) && !p_mle) + { + *errmsg = e_not_allowed_in_modeline_when_modelineexpr_is_off; + return FAIL; + } +#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 + && ( +# ifdef FEAT_FOLDING + options[opt_idx].indir == PV_FDM || +# endif + options[opt_idx].indir == PV_WRAP)) + return FAIL; +#endif + } + +#ifdef HAVE_SANDBOX + // Disallow changing some options in the sandbox + if (sandbox != 0 && (flags & P_SECURE)) + { + *errmsg = e_not_allowed_in_sandbox; + return FAIL; + } +#endif + + return OK; +} + +/* + * Get the Vim/Vi default value for a string option. + */ + static char_u * +stropt_get_default_val( + int opt_idx, + char_u *varp, + int flags, + int cp_val) +{ + char_u *newval; + + 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(); + } + else if ((char_u **)varp == &p_fencs && enc_utf8) + newval = fencs_utf8_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 + { + char_u *s = option_expand(opt_idx, newval); + if (s == NULL) + s = newval; + newval = vim_strsave(s); + } + + return newval; +} + +/* + * Convert the 'backspace' option number value to a string: for adding, + * prepending and removing string. + */ + static void +opt_backspace_nr2str( + char_u *varp, + char_u **origval_p, + char_u **origval_l_p, + char_u **origval_g_p, + char_u **oldval_p) +{ + int 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; + case 3: + *(char_u **)varp = vim_strsave((char_u *)"indent,eol,nostop"); + break; + } + vim_free(*oldval_p); + if (*origval_p == *oldval_p) + *origval_p = *(char_u **)varp; + if (*origval_l_p == *oldval_p) + *origval_l_p = *(char_u **)varp; + if (*origval_g_p == *oldval_p) + *origval_g_p = *(char_u **)varp; + *oldval_p = *(char_u **)varp; +} + +/* + * Convert the 'whichwrap' option number value to a string, for backwards + * compatibility with Vim 3.0. + * Note: 'argp' is a pointer to a char_u pointer and is updated. + */ + static char_u * +opt_whichwrap_nr2str(char_u **argp, char_u *whichwrap) +{ + *whichwrap = NUL; + int i = getdigits(argp); + if (i & 1) + STRCAT(whichwrap, "b,"); + if (i & 2) + STRCAT(whichwrap, "s,"); + if (i & 4) + STRCAT(whichwrap, "h,l,"); + if (i & 8) + STRCAT(whichwrap, "<,>,"); + if (i & 16) + STRCAT(whichwrap, "[,],"); + if (*whichwrap != NUL) // remove trailing , + whichwrap[STRLEN(whichwrap) - 1] = NUL; + + return whichwrap; +} + +/* + * Copy the new string value into allocated memory for the option. + * Can't use set_string_option_direct(), because we need to remove the + * backslashes. + */ + static char_u * +stropt_copy_value( + char_u *origval, + char_u **argp, + set_op_T op, + int flags UNUSED) +{ + char_u *arg = *argp; + unsigned newlen; + char_u *newval; + char_u *s = NULL; + + // get a bit too much + newlen = (unsigned)STRLEN(arg) + 1; + if (op != OP_NONE) + newlen += (unsigned)STRLEN(origval) + 1; + newval = alloc(newlen); + if (newval == NULL) // out of mem, don't change + return NULL; + 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 != NUL && !VIM_ISWHITE(*arg)) + { + int i; + + if (*arg == '\\' && arg[1] != NUL +#ifdef BACKSLASH_IN_FILENAME + && !((flags & P_EXPAND) + && vim_isfilec(arg[1]) + && !VIM_ISWHITE(arg[1]) + && (arg[1] != '\\' + || (s == newval && arg[2] != '\\'))) +#endif + ) + ++arg; // remove backslash + if (has_mbyte && (i = (*mb_ptr2len)(arg)) > 1) + { + // copy multibyte char + mch_memmove(s, arg, (size_t)i); + arg += i; + s += i; + } + else + *s++ = *arg++; + } + *s = NUL; + + *argp = arg; + return newval; +} + +/* + * Expand environment variables and ~ in string option value 'newval'. + */ + static char_u * +stropt_expand_envvar( + int opt_idx, + char_u *origval, + char_u *newval, + set_op_T op) +{ + char_u *s = option_expand(opt_idx, newval); + if (s == NULL) + return newval; + + vim_free(newval); + unsigned newlen = (unsigned)STRLEN(s) + 1; + if (op != OP_NONE) + newlen += (unsigned)STRLEN(origval) + 1; + + newval = alloc(newlen); + if (newval == NULL) + return NULL; + + STRCPY(newval, s); + + return newval; +} + +/* + * Concatenate the original and new values of a string option, adding a "," if + * needed. + */ + static void +stropt_concat_with_comma( + char_u *origval, + char_u *newval, + set_op_T op, + int flags) +{ + int len = 0; + + int comma = ((flags & P_COMMA) && *origval != NUL && *newval != NUL); + if (op == OP_ADDING) + { + len = (int)STRLEN(origval); + // strip a trailing comma, would get 2 + if (comma && len > 1 + && (flags & P_ONECOMMA) == P_ONECOMMA + && origval[len - 1] == ',' + && origval[len - 2] != '\\') + len--; + mch_memmove(newval + len + comma, newval, STRLEN(newval) + 1); + mch_memmove(newval, origval, (size_t)len); + } + else + { + len = (int)STRLEN(newval); + STRMOVE(newval + len + comma, origval); + } + if (comma) + newval[len] = ','; +} + +/* + * Remove a value from a string option. Copy string option value in "origval" + * to "newval" and then remove the string "strval" of length "len". + */ + static void +stropt_remove_val( + char_u *origval, + char_u *newval, + int flags, + char_u *strval, + int len) +{ + // Remove newval[] from origval[]. (Note: "len" has been set above + // and is used here). + STRCPY(newval, origval); + if (*strval) + { + // may need to remove a comma + if (flags & P_COMMA) + { + if (strval == origval) + { + // include comma after string + if (strval[len] == ',') + ++len; + } + else + { + // include comma before string + --strval; + ++len; + } + } + STRMOVE(newval + (strval - origval), strval + len); + } +} + +/* + * Remove flags that appear twice in the string option value 'newval'. + */ + static void +stropt_remove_dupflags(char_u *newval, int flags) +{ + char_u *s = newval; + + // Remove flags that appear twice. + while (*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); + continue; + } + } + else + { + if ((!(flags & P_COMMA) || *s != ',') + && vim_strchr(s + 1, *s) != NULL) + { + STRMOVE(s, s + 1); + continue; + } + } + ++s; + } +} + +/* + * Get the string value specified for a ":set" command. The following set + * options are supported: + * set {opt}& + * set {opt}< + * set {opt}={val} + * set {opt}:{val} + */ + static char_u * +stropt_get_newval( + int nextchar, + int opt_idx, + char_u **argp, + char_u *varp, + char_u **origval_arg, + char_u **origval_l_arg, + char_u **origval_g_arg, + char_u **oldval_arg, + set_op_T *op_arg, + int flags, + int cp_val) +{ + char_u *arg = *argp; + char_u *origval = *origval_arg; + char_u *origval_l = *origval_l_arg; + char_u *origval_g = *origval_g_arg; + char_u *oldval = *oldval_arg; + set_op_T op = *op_arg; + char_u *save_arg = NULL; + char_u *newval; + char_u *s = NULL; + char_u whichwrap[80]; + + if (nextchar == '&') // set to default val + newval = stropt_get_default_val(opt_idx, varp, flags, cp_val); + else if (nextchar == '<') // set to global val + newval = vim_strsave(*(char_u **)get_varp_scope( + &(options[opt_idx]), OPT_GLOBAL)); + else + { + ++arg; // jump to after the '=' or ':' + + // Set 'keywordprg' to ":help" if an empty + // value was passed to :set by the user. + if (varp == (char_u *)&p_kp && (*arg == NUL || *arg == ' ')) + { + save_arg = arg; + arg = (char_u *)":help"; + } + // Convert 'backspace' number to string + else if (varp == (char_u *)&p_bs && VIM_ISDIGIT(**(char_u **)varp)) + opt_backspace_nr2str(varp, &origval, &origval_l, &origval_g, + &oldval); + else if (varp == (char_u *)&p_ww && VIM_ISDIGIT(*arg)) + { + // Convert 'whichwrap' number to string, for backwards + // compatibility with Vim 3.0. + char_u *t = opt_whichwrap_nr2str(&arg, whichwrap); + save_arg = arg; + arg = t; + } + // 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; + + // Copy the new string into allocated memory. + newval = stropt_copy_value(origval, &arg, op, flags); + if (newval == NULL) + goto done; + + // Expand environment variables and ~. + // Don't do it when adding without inserting a comma. + if (op == OP_NONE || (flags & P_COMMA)) + { + newval = stropt_expand_envvar(opt_idx, origval, newval, op); + if (newval == NULL) + goto done; + } + + // locate newval[] in origval[] when removing it and when adding to + // avoid duplicates + int len = 0; + if (op == OP_REMOVING || (flags & P_NODUP)) + { + len = (int)STRLEN(newval); + s = find_dup_item(origval, newval, flags); + + // do not add if already there + if ((op == OP_ADDING || op == OP_PREPENDING) && s != NULL) + { + op = OP_NONE; + STRCPY(newval, origval); + } + + // if no duplicate, move pointer to end of original value + if (s == NULL) + s = origval + (int)STRLEN(origval); + } + + // concatenate the two strings; add a ',' if needed + if (op == OP_ADDING || op == OP_PREPENDING) + stropt_concat_with_comma(origval, newval, op, flags); + else if (op == OP_REMOVING) + // Remove newval[] from origval[]. (Note: "len" has been set above + // and is used here). + stropt_remove_val(origval, newval, flags, s, len); + + if (flags & P_FLAGLIST) + // Remove flags that appear twice. + stropt_remove_dupflags(newval, flags); + } + +done: + if (save_arg != NULL) + arg = save_arg; // arg was temporarily changed, restore it + *argp = arg; + *origval_arg = origval; + *origval_l_arg = origval_l; + *origval_g_arg = origval_g; + *oldval_arg = oldval; + *op_arg = op; + + return newval; +} + +/* + * Part of do_set() for string options. + * Returns FAIL on failure, do not process further options. + */ + static int +do_set_option_string( + int opt_idx, + int opt_flags, + char_u **argp, + int nextchar, + set_op_T op_arg, + int flags, + int cp_val, + char_u *varp_arg, + char *errbuf, + int *value_checked, + char **errmsg) +{ + char_u *arg = *argp; + set_op_T op = op_arg; + char_u *varp = varp_arg; + char_u *oldval = NULL; // previous value if *varp + char_u *newval; + char_u *origval = NULL; + char_u *origval_l = NULL; + char_u *origval_g = NULL; +#if defined(FEAT_EVAL) + char_u *saved_origval = NULL; + char_u *saved_origval_l = NULL; + char_u *saved_origval_g = NULL; + char_u *saved_newval = NULL; +#endif + + // 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 ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + { + origval_l = *(char_u **)get_varp_scope( + &(options[opt_idx]), OPT_LOCAL); + origval_g = *(char_u **)get_varp_scope( + &(options[opt_idx]), OPT_GLOBAL); + + // A global-local string option might have an empty option as value to + // indicate that the global value should be used. + if (((int)options[opt_idx].indir & PV_BOTH) + && origval_l == empty_option) + origval_l = origval_g; + } + + // 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; + + // Get the new value for the option + newval = stropt_get_newval(nextchar, opt_idx, &arg, varp, &origval, + &origval_l, &origval_g, &oldval, &op, flags, + cp_val); + + // Set the new value. + *(char_u **)(varp) = newval; + if (newval == NULL) + *(char_u **)(varp) = empty_option; + +#if defined(FEAT_EVAL) + if (!starting +# ifdef FEAT_CRYPT + && options[opt_idx].indir != PV_KEY +# endif + && origval != NULL && newval != NULL) + { + // origval may be freed by did_set_string_option(), make a copy. + saved_origval = vim_strsave(origval); + // newval (and varp) may become invalid if the buffer is closed by + // autocommands. + saved_newval = vim_strsave(newval); + if (origval_l != NULL) + saved_origval_l = vim_strsave(origval_l); + if (origval_g != NULL) + saved_origval_g = vim_strsave(origval_g); + } +#endif + + { + long_u *p = insecure_flag(opt_idx, opt_flags); + int secure_saved = secure; + + // When an option is set in the sandbox, from a modeline or in secure + // mode, then deal with side effects in secure mode. Also when the + // value was set with the P_INSECURE flag and is not completely + // replaced. + if ((opt_flags & OPT_MODELINE) +#ifdef HAVE_SANDBOX + || sandbox != 0 +#endif + || (op != OP_NONE && (*p & P_INSECURE))) + secure = 1; + + // Handle side effects, and set the global value for ":set" on local + // options. Note: when setting 'syntax' or 'filetype' autocommands may + // be triggered that can cause havoc. + *errmsg = did_set_string_option( + opt_idx, (char_u **)varp, oldval, newval, errbuf, + opt_flags, value_checked); + + secure = secure_saved; + } + +#if defined(FEAT_EVAL) + if (*errmsg == NULL) + trigger_optionset_string(opt_idx, opt_flags, saved_origval, + saved_origval_l, saved_origval_g, saved_newval); + vim_free(saved_origval); + vim_free(saved_origval_l); + vim_free(saved_origval_g); + vim_free(saved_newval); +#endif + + *argp = arg; + return *errmsg == NULL ? OK : FAIL; +} + +/* + * Set a boolean option. + * Returns an untranslated error message or NULL. + */ + static char * +do_set_option_bool( + int opt_idx, + int opt_flags, + set_prefix_T prefix, + long_u flags, + char_u *varp, + int nextchar, + int afterchar, + int cp_val) + +{ + varnumber_T value; + + if (nextchar == '=' || nextchar == ':') + return e_invalid_argument; + if (opt_idx < 0 || varp == NULL) + return NULL; // "cannot happen" + + // ":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)) + return e_trailing_characters; + if (prefix == PREFIX_INV) + value = *(int *)(varp) ^ 1; + else + value = prefix == PREFIX_NO ? 0 : 1; + } + + return set_bool_option(opt_idx, varp, (int)value, opt_flags); +} + +/* + * Set a numeric option. + * Returns an untranslated error message or NULL. + */ + static char * +do_set_option_numeric( + int opt_idx, + int opt_flags, + char_u **argp, + int nextchar, + set_op_T op, + long_u flags, + int cp_val, + char_u *varp, + char *errbuf, + size_t errbuflen) +{ + char_u *arg = *argp; + varnumber_T value; + int i; + char *errmsg = NULL; + + if (opt_idx < 0 || varp == NULL) + return NULL; // "cannot happen" + // + /* + * 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 != NUL + && (!arg[1] || VIM_ISWHITE(arg[1])) + && !VIM_ISDIGIT(*arg)))) + { + value = string_to_key(arg, FALSE); + if (value == 0 && (long *)varp != &p_wcm) + { + errmsg = e_invalid_argument; + 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, TRUE); + if (i == 0 || (arg[i] != NUL && !VIM_ISWHITE(arg[i]))) + { + errmsg = e_number_required_after_equal; + goto skip; + } + } + else + { + errmsg = e_number_required_after_equal; + goto skip; + } + + if (op == OP_ADDING) + value = *(long *)varp + value; + else if (op == OP_PREPENDING) + value = *(long *)varp * value; + else if (op == OP_REMOVING) + value = *(long *)varp - value; + + errmsg = set_num_option(opt_idx, varp, value, errbuf, errbuflen, + opt_flags); + +skip: + *argp = arg; + return errmsg; +} + +/* + * Set a key code (t_xx) option + */ + static char * +do_set_option_keycode(char_u **argp, char_u *key_name, int nextchar) +{ + char_u *arg = *argp; + char_u *p; + + if (nextchar == '&') + { + if (add_termcap_entry(key_name, TRUE) == FAIL) + return e_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(UPD_CLEAR); + + *argp = arg; + return NULL; +} + +/* + * Set an option to a new value. + */ + static char * +do_set_option_value( + int opt_idx, + int opt_flags, + char_u **argp, + set_prefix_T prefix, + set_op_T op, + long_u flags, + char_u *varp, + char_u *key_name, + int nextchar, + int afterchar, + int cp_val, + int *stopopteval, + char *errbuf, + size_t errbuflen) +{ + int value_checked = FALSE; + char *errmsg = NULL; + char_u *arg = *argp; + + if (flags & P_BOOL) + { + // boolean option + errmsg = do_set_option_bool(opt_idx, opt_flags, prefix, flags, varp, + nextchar, afterchar, cp_val); + if (errmsg != NULL) + goto skip; + } + else + { + // numeric or string option + if (vim_strchr((char_u *)"=:&<", nextchar) == NULL + || prefix != PREFIX_NONE) + { + errmsg = e_invalid_argument; + goto skip; + } + + if (flags & P_NUM) + { + // numeric option + errmsg = do_set_option_numeric(opt_idx, opt_flags, &arg, nextchar, + op, flags, cp_val, varp, + errbuf, errbuflen); + if (errmsg != NULL) + goto skip; + } + else if (opt_idx >= 0) + { + // string option + if (do_set_option_string(opt_idx, opt_flags, &arg, nextchar, op, + flags, cp_val, varp, errbuf, + &value_checked, &errmsg) == FAIL) + { + if (errmsg != NULL) + goto skip; + *stopopteval = TRUE; + goto skip; + } + } + else + { + // key code option + errmsg = do_set_option_keycode(&arg, key_name, nextchar); + if (errmsg != NULL) + goto skip; + } + } + + if (opt_idx >= 0) + did_set_option(opt_idx, opt_flags, op == OP_NONE, value_checked); + +skip: + *argp = arg; + return errmsg; +} + +/* + * Set an option to a new value. + * Return NULL if OK, return an untranslated error message when something is + * wrong. "errbuf[errbuflen]" can be used to create the error message. + */ + static char * +do_set_option( + int opt_flags, + char_u **argp, + char_u *arg_start, + char_u **startarg, + int *did_show, + int *stopopteval, + char *errbuf, + size_t errbuflen) +{ + int opt_idx; + char_u *arg; + set_prefix_T prefix; // no prefix, "no" prefix or "inv" prefix + set_op_T op; + long_u flags; // flags for current option + char_u *varp; // pointer to variable for current option + char_u key_name[2]; + int nextchar; // next non-white char after option name + int afterchar; // character just after option name + char *errmsg = NULL; + int key; + int len; + + prefix = get_option_prefix(argp); + arg = *argp; + + // find end of name + key = 0; + if (parse_option_name(arg, &opt_idx, &len, &key) == FAIL) + return e_invalid_argument; + + // remember character after option name + afterchar = arg[len]; + + if (in_vim9script()) + { + char_u *p = skipwhite(arg + len); + + // disallow white space before =val, +=val, -=val, ^=val + if (p > arg + len && (p[0] == '=' + || (vim_strchr((char_u *)"+-^", p[0]) != NULL + && p[1] == '='))) + { + errmsg = e_no_white_space_allowed_between_option_and; + arg = p; + *startarg = p; + goto skip; + } + } + else + // skip white space, allow ":set ai ?", ":set hlsearch !" + while (VIM_ISWHITE(arg[len])) + ++len; + + op = get_opt_op(arg + len); + if (op != OP_NONE) + len++; + + nextchar = arg[len]; + + if (opt_idx == -1 && key == 0) // found a mismatch: skip + { + if (in_vim9script() && arg > arg_start + && vim_strchr((char_u *)"!&<", *arg) != NULL) + errmsg = e_no_white_space_allowed_between_option_and; + else + errmsg = e_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 = e_option_not_supported; + goto skip; + } + + flags = options[opt_idx].flags; + varp = get_varp_scope(&(options[opt_idx]), opt_flags); + } + else + { + flags = P_STRING; + varp = NULL; + if (key < 0) + { + key_name[0] = KEY2TERMCAP0(key); + key_name[1] = KEY2TERMCAP1(key); + } + else + { + key_name[0] = KS_KEY; + key_name[1] = (key & 0xff); + } + } + + // Make sure the option value can be changed. + if (validate_opt_idx(opt_idx, opt_flags, flags, &errmsg) == FAIL) + goto skip; + + int cp_val = p_cp; + if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL) + { + arg += len; + 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_characters; + goto skip; + } + } + + // Allow '=' and ':' for historical reasons (MSDOS command.com). + // Allows only one '=' character per "set" command line. grrr. (jw) + if (nextchar == '?' + || (prefix == PREFIX_NONE + && 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].script_ctx); + else if ((int)options[opt_idx].indir & PV_WIN) + last_set_msg(curwin->w_p_script_ctx[ + (int)options[opt_idx].indir & PV_MASK]); + else if ((int)options[opt_idx].indir & PV_BUF) + last_set_msg(curbuf->b_p_script_ctx[ + (int)options[opt_idx].indir & PV_MASK]); + } +#endif + } + else + { + char_u *p; + + p = find_termcode(key_name); + if (p == NULL) + { + errmsg = e_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_characters; + } + else + { + errmsg = do_set_option_value(opt_idx, opt_flags, &arg, prefix, op, + flags, varp, key_name, nextchar, + afterchar, cp_val, stopopteval, errbuf, + errbuflen); + } + +skip: + *argp = arg; + return errmsg; +} + +/* + * Parse 'arg' for option settings. + * + * 'arg' may be IObuff, but only when no errors can be present and option + * does not need to be expanded with option_expand(). + * "opt_flags": + * 0 for ":set" + * OPT_GLOBAL for ":setglobal" + * OPT_LOCAL for ":setlocal" and a modeline + * OPT_MODELINE for a modeline + * OPT_WINONLY to only set window-local options + * OPT_NOWIN to skip setting window-local options + * OPT_ONECOLUMN do not use multiple columns + * + * Returns FAIL if an error is detected, OK otherwise. + */ + int +do_set( + char_u *arg_start, // option string (may be written to!) + int opt_flags) +{ + char_u *arg = arg_start; + int i; + int did_show = FALSE; // already showed one value + + if (*arg == NUL) + { + showoptions(0, opt_flags); + did_show = TRUE; + goto theend; + } + + while (*arg != NUL) // loop to process all options + { + if (STRNCMP(arg, "all", 3) == 0 && !ASCII_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(UPD_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(opt_flags); + did_show = TRUE; + arg += 7; + } + else + { + int stopopteval = FALSE; + char *errmsg = NULL; + char errbuf[80]; + char_u *startarg = arg; + + errmsg = do_set_option(opt_flags, &arg, arg_start, &startarg, + &did_show, &stopopteval, errbuf, + sizeof(errbuf)); + if (stopopteval) + break; + + // 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((char *)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; +} + +/* + * Call this when an option has been given a new value through a user command. + * Sets the P_WAS_SET flag and takes care of the P_INSECURE flag. + */ + void +did_set_option( + int opt_idx, + int opt_flags, // possibly with OPT_MODELINE + int new_value, // value was replaced completely + int value_checked) // value was checked to be safe, no need to set the + // P_INSECURE flag. +{ + 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 (!value_checked && (secure +#ifdef HAVE_SANDBOX + || sandbox != 0 +#endif + || (opt_flags & OPT_MODELINE))) + *p = *p | P_INSECURE; + else if (new_value) + *p = *p & ~P_INSECURE; +} + +/* + * Convert a key name or string into a key value. + * Used for 'wildchar' and 'cedit' options. + * When "multi_byte" is TRUE allow for multi-byte characters. + */ + int +string_to_key(char_u *arg, int multi_byte) +{ + if (*arg == '<') + return find_key_option(arg + 1, TRUE); + if (*arg == '^') + return Ctrl_chr(arg[1]); + if (multi_byte) + return PTR2CHAR(arg); + return *arg; +} + +/* + * When changing 'title', 'titlestring', 'icon' or 'iconstring', call + * maketitle() to create and display it. + * When switching the title or icon off, call mch_restore_title() to get + * the old value back. + */ + void +did_set_title(void) +{ + if (starting != NO_SCREEN +#ifdef FEAT_GUI + && !gui.starting +#endif + ) + maketitle(); +} + +/* + * set_options_bin - called when 'bin' changes value. + */ + void +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; + } + } +} + +/* + * Expand environment variables for some string options. + * These string options cannot be indirect! + * If "val" is NULL expand the current value of the option. + * Return pointer to NameBuff, or NULL when not expanded. + */ + static char_u * +option_expand(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; +} + +/* + * After setting various option values: recompute variables that depend on + * option values. + */ + static void +didset_options(void) +{ + // initialize the table for 'iskeyword' et.al. + (void)init_chartab(); + + didset_string_options(); + +#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 + // set cedit_key + (void)did_set_cedit(NULL); +#ifdef FEAT_LINEBREAK + // initialize the table for 'breakat'. + did_set_breakat(NULL); +#endif + after_copy_winopt(curwin); +} + +/* + * More side effects of setting options. + */ + static void +didset_options2(void) +{ + // Initialize the highlight_attr[] table. + (void)highlight_changed(); + + // Parse default for 'wildmode' + check_opt_wim(); + + // Parse default for 'listchars'. + (void)set_listchars_option(curwin, curwin->w_p_lcs, TRUE); + + // Parse default for 'fillchars'. + (void)set_fillchars_option(curwin, curwin->w_p_fcs, TRUE); + +#ifdef FEAT_CLIPBOARD + // Parse default for 'clipboard' + (void)did_set_clipboard(NULL); +#endif +#ifdef FEAT_VARTABS + vim_free(curbuf->b_p_vsts_array); + (void)tabstop_set(curbuf->b_p_vsts, &curbuf->b_p_vsts_array); + vim_free(curbuf->b_p_vts_array); + (void)tabstop_set(curbuf->b_p_vts, &curbuf->b_p_vts_array); +#endif +} + +/* + * Check for string options that are NULL (normally only termcap options). + */ + void +check_options(void) +{ + int opt_idx; + + for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++) + if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL) + check_string_option((char_u **)get_varp(&(options[opt_idx]))); +} + +/* + * Return the option index found by a pointer into term_strings[]. + * Return -1 if not found. + */ + int +get_term_opt_idx(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) + return opt_idx; + return -1; // cannot happen: didn't find it! +} + +/* + * Mark a terminal option as allocated, found by a pointer into term_strings[]. + * Return the option index or -1 if not found. + */ + int +set_term_option_alloced(char_u **p) +{ + int opt_idx = get_term_opt_idx(p); + + if (opt_idx >= 0) + options[opt_idx].flags |= P_ALLOCED; + return opt_idx; +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Return TRUE when option "opt" was set from a modeline or in secure mode. + * Return FALSE when it wasn't. + * Return -1 for an unknown option. + */ + int +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; + } + internal_error("was_set_insecurely()"); + return -1; +} + +/* + * Get a pointer to the flags used for the P_INSECURE flag of option + * "opt_idx". For some local options a local flags field is used. + * NOTE: Caller must make sure that "curwin" is set to the window from which + * the option is used. + */ + static long_u * +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 + case PV_INDE: return &curbuf->b_p_inde_flags; + 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; +} +#endif + +/* + * Redraw the window title and/or tab page text later. + */ +void redraw_titles(void) +{ + need_maketitle = TRUE; + redraw_tabline = TRUE; +} + +/* + * Return TRUE if "val" is a valid name: only consists of alphanumeric ASCII + * characters or characters in "allowed". + */ + int +valid_name(char_u *val, char *allowed) +{ + char_u *s; + + for (s = val; *s != NUL; ++s) + if (!ASCII_ISALNUM(*s) && vim_strchr((char_u *)allowed, *s) == NULL) + return FALSE; + return TRUE; +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Set the script_ctx for an option, taking care of setting the buffer- or + * window-local value. + */ + void +set_option_sctx_idx(int opt_idx, int opt_flags, sctx_T script_ctx) +{ + int both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0; + int indir = (int)options[opt_idx].indir; + sctx_T new_script_ctx = script_ctx; + + // Modeline already has the line number set. + if (!(opt_flags & OPT_MODELINE)) + new_script_ctx.sc_lnum += SOURCING_LNUM; + + // 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].script_ctx = new_script_ctx; + if (both || (opt_flags & OPT_LOCAL)) + { + if (indir & PV_BUF) + curbuf->b_p_script_ctx[indir & PV_MASK] = new_script_ctx; + else if (indir & PV_WIN) + { + curwin->w_p_script_ctx[indir & PV_MASK] = new_script_ctx; + if (both) + // also setting the "all buffers" value + curwin->w_allbuf_opt.wo_script_ctx[indir & PV_MASK] = + new_script_ctx; + } + } +} + +/* + * Get the script context of global option "name". + * + */ + sctx_T * +get_option_sctx(char *name) +{ + int idx = findoption((char_u *)name); + + if (idx >= 0) + return &options[idx].script_ctx; + siemsg("no such option: %s", name); + return NULL; +} + +/* + * Set the script_ctx for a termcap option. + * "name" must be the two character code, e.g. "RV". + * When "name" is NULL use "opt_idx". + */ + void +set_term_option_sctx_idx(char *name, int opt_idx) +{ + char_u buf[5]; + int idx; + + if (name == NULL) + idx = opt_idx; + else + { + buf[0] = 't'; + buf[1] = '_'; + buf[2] = name[0]; + buf[3] = name[1]; + buf[4] = 0; + idx = findoption(buf); + } + if (idx >= 0) + set_option_sctx_idx(idx, OPT_GLOBAL, current_sctx); +} +#endif + +#if defined(FEAT_EVAL) +/* + * Apply the OptionSet autocommand. + */ + static void +apply_optionset_autocmd( + int opt_idx, + long opt_flags, + long oldval, + long oldval_g, + long newval, + char *errmsg) +{ + char_u buf_old[12], buf_old_global[12], buf_new[12], buf_type[12]; + + // Don't do this while starting up, failure or recursively. + if (starting || errmsg != NULL || *get_vim_var_str(VV_OPTION_TYPE) != NUL) + return; + + vim_snprintf((char *)buf_old, sizeof(buf_old), "%ld", oldval); + vim_snprintf((char *)buf_old_global, sizeof(buf_old_global), "%ld", + oldval_g); + vim_snprintf((char *)buf_new, sizeof(buf_new), "%ld", newval); + vim_snprintf((char *)buf_type, sizeof(buf_type), "%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); + if (opt_flags & OPT_LOCAL) + { + set_vim_var_string(VV_OPTION_COMMAND, (char_u *)"setlocal", -1); + set_vim_var_string(VV_OPTION_OLDLOCAL, buf_old, -1); + } + if (opt_flags & OPT_GLOBAL) + { + set_vim_var_string(VV_OPTION_COMMAND, (char_u *)"setglobal", -1); + set_vim_var_string(VV_OPTION_OLDGLOBAL, buf_old, -1); + } + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + { + set_vim_var_string(VV_OPTION_COMMAND, (char_u *)"set", -1); + set_vim_var_string(VV_OPTION_OLDLOCAL, buf_old, -1); + set_vim_var_string(VV_OPTION_OLDGLOBAL, buf_old_global, -1); + } + if (opt_flags & OPT_MODELINE) + { + set_vim_var_string(VV_OPTION_COMMAND, (char_u *)"modeline", -1); + set_vim_var_string(VV_OPTION_OLDLOCAL, buf_old, -1); + } + apply_autocmds(EVENT_OPTIONSET, (char_u *)options[opt_idx].fullname, + NULL, FALSE, NULL); + reset_v_option_vars(); +} +#endif + +/* + * Process the updated 'compatible' option value. + */ + char * +did_set_compatible(optset_T *args UNUSED) +{ + compatible_set(); + return NULL; +} + +#if defined(FEAT_LANGMAP) || defined(PROTO) +/* + * Process the updated 'langremap' option value. + */ + char * +did_set_langremap(optset_T *args UNUSED) +{ + // 'langremap' -> !'langnoremap' + p_lnr = !p_lrm; + return NULL; +} + +/* + * Process the updated 'langnoremap' option value. + */ + char * +did_set_langnoremap(optset_T *args UNUSED) +{ + // 'langnoremap' -> !'langremap' + p_lrm = !p_lnr; + return NULL; +} +#endif + +#if defined(FEAT_PERSISTENT_UNDO) || defined(PROTO) +/* + * Process the updated 'undofile' option value. + */ + char * +did_set_undofile(optset_T *args) +{ + // Only take action when the option was set. + if (!curbuf->b_p_udf && !p_udf) + return NULL; + + // When reset we do not delete the undo file, the option may be set again + // without making any changes in between. + 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 + || (args->os_flags & OPT_GLOBAL) + || args->os_flags == 0) + && !curbufIsChanged() && curbuf->b_ml.ml_mfp != NULL) + { +#ifdef FEAT_CRYPT + if (crypt_get_method_nr(curbuf) == CRYPT_M_SOD) + continue; +#endif + u_compute_hash(hash); + u_read_undo(NULL, hash, curbuf->b_fname); + } + } + curbuf = save_curbuf; + + return NULL; +} +#endif + +/* + * Process the updated 'readonly' option value. + */ + char * +did_set_readonly(optset_T *args) +{ + // when 'readonly' is reset globally, also reset readonlymode + if (!curbuf->b_p_ro && (args->os_flags & OPT_LOCAL) == 0) + readonlymode = FALSE; + + // when 'readonly' is set may give W10 again + if (curbuf->b_p_ro) + curbuf->b_did_warn = FALSE; + + redraw_titles(); + + return NULL; +} + +#if defined(FEAT_GUI) || defined(PROTO) +/* + * Process the updated 'mousehide' option value. + */ + char * +did_set_mousehide(optset_T *args UNUSED) +{ + if (!p_mh) + gui_mch_mousehide(FALSE); + return NULL; +} +#endif + +/* + * Process the updated 'modifiable' option value. + */ + char * +did_set_modifiable(optset_T *args UNUSED) +{ + // when 'modifiable' is changed, redraw the window title + +# ifdef FEAT_TERMINAL + // Cannot set 'modifiable' when in Terminal mode. + if (curbuf->b_p_ma && (term_in_normal_mode() || (bt_terminal(curbuf) + && curbuf->b_term != NULL && !term_is_finished(curbuf)))) + { + curbuf->b_p_ma = FALSE; + args->os_doskip = TRUE; + return e_cannot_make_terminal_with_running_job_modifiable; + } +# endif + redraw_titles(); + + return NULL; +} + +/* + * Process the updated 'endoffile' or 'endofline' or 'fixendofline' or 'bomb' + * option value. + */ + char * +did_set_eof_eol_fixeol_bomb(optset_T *args UNUSED) +{ + // redraw the window title and tab page text + redraw_titles(); + return NULL; +} + +/* + * Process the updated 'binary' option value. + */ + char * +did_set_binary(optset_T *args) +{ + // when 'bin' is set also set some other options + set_options_bin(args->os_oldval.boolean, curbuf->b_p_bin, args->os_flags); + redraw_titles(); + + return NULL; +} + +/* + * Process the updated 'buflisted' option value. + */ + char * +did_set_buflisted(optset_T *args) +{ + // when 'buflisted' changes, trigger autocommands + if (args->os_oldval.boolean != curbuf->b_p_bl) + apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE, + NULL, NULL, TRUE, curbuf); + return NULL; +} + +/* + * Process the updated 'swapfile' option value. + */ + char * +did_set_swapfile(optset_T *args UNUSED) +{ + // when 'swf' is set, create swapfile, when reset remove swapfile + 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 + return NULL; +} + +/* + * Process the updated 'terse' option value. + */ + char * +did_set_terse(optset_T *args UNUSED) +{ + char_u *p; + + // when 'terse' is set change 'shortmess' + 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); + return NULL; +} + +/* + * Process the updated 'paste' option value. + */ + char * +did_set_paste(optset_T *args UNUSED) +{ + // when 'paste' is set or reset also change other options + paste_option_changed(); + return NULL; +} + +/* + * Process the updated 'insertmode' option value. + */ + char * +did_set_insertmode(optset_T *args) +{ + // when 'insertmode' is set from an autocommand need to do work here + if (p_im) + { + if ((State & MODE_INSERT) == 0) + need_start_insertmode = TRUE; + stop_insert_mode = FALSE; + } + // only reset if it was set previously + else if (args->os_oldval.boolean) + { + need_start_insertmode = FALSE; + stop_insert_mode = TRUE; + if (restart_edit != 0 && mode_displayed) + clear_cmdline = TRUE; // remove "(insert)" + restart_edit = 0; + } + + return NULL; +} + +/* + * Process the updated 'ignorecase' option value. + */ + char * +did_set_ignorecase(optset_T *args UNUSED) +{ + // when 'ignorecase' is set or reset and 'hlsearch' is set, redraw + if (p_hls) + redraw_all_later(UPD_SOME_VALID); + return NULL; +} + +#if defined(FEAT_SEARCH_EXTRA) || defined(PROTO) +/* + * Process the updated 'hlsearch' option value. + */ + char * +did_set_hlsearch(optset_T *args UNUSED) +{ + // when 'hlsearch' is set or reset: reset no_hlsearch + set_no_hlsearch(FALSE); + return NULL; +} +#endif + +/* + * Process the updated 'scrollbind' option value. + */ + char * +did_set_scrollbind(optset_T *args UNUSED) +{ + // when 'scrollbind' is set: snapshot the current position to avoid a jump + // at the end of normal_cmd() + if (!curwin->w_p_scb) + return NULL; + + do_check_scrollbind(FALSE); + curwin->w_scbind_pos = curwin->w_topline; + return NULL; +} + +#ifdef FEAT_QUICKFIX +/* + * Process the updated 'previewwindow' option value. + */ + char * +did_set_previewwindow(optset_T *args) +{ + if (!curwin->w_p_pvw) + return NULL; + + // There can be only one window with 'previewwindow' set. + win_T *win; + + FOR_ALL_WINDOWS(win) + if (win->w_p_pvw && win != curwin) + { + curwin->w_p_pvw = FALSE; + args->os_doskip = TRUE; + return e_preview_window_already_exists; + } + + return NULL; +} +#endif + +/* + * Process the updated 'smoothscroll' option value. + */ + char * +did_set_smoothscroll(optset_T *args UNUSED) +{ + if (curwin->w_p_sms) + return NULL; + + curwin->w_skipcol = 0; + changed_line_abv_curs(); + return NULL; +} + +/* + * Process the updated 'textmode' option value. + */ + char * +did_set_textmode(optset_T *args) +{ + // when 'textmode' is set or reset also change 'fileformat' + set_fileformat(curbuf->b_p_tx ? EOL_DOS : EOL_UNIX, args->os_flags); + + return NULL; +} + +/* + * Process the updated 'textauto' option value. + */ + char * +did_set_textauto(optset_T *args) +{ + // when 'textauto' is set or reset also change 'fileformats' + set_string_option_direct((char_u *)"ffs", -1, + p_ta ? (char_u *)DFLT_FFS_VIM : (char_u *)"", + OPT_FREE | args->os_flags, 0); + + return NULL; +} + +/* + * Process the updated 'lisp' option value. + */ + char * +did_set_lisp(optset_T *args UNUSED) +{ + // When 'lisp' option changes include/exclude '-' in keyword characters. + (void)buf_init_chartab(curbuf, FALSE); // ignore errors + return NULL; +} + +/* + * Process the updated 'title' or the 'icon' option value. + */ + char * +did_set_title_icon(optset_T *args UNUSED) +{ + // when 'title' changed, may need to change the title; same for 'icon' + did_set_title(); + return NULL; +} + +/* + * Process the updated 'modified' option value. + */ + char * +did_set_modified(optset_T *args) +{ + if (!args->os_newval.boolean) + save_file_ff(curbuf); // Buffer is unchanged + redraw_titles(); + modified_was_set = args->os_newval.boolean; + return NULL; +} + +#if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) +/* + * Process the updated 'shellslash' option value. + */ + char * +did_set_shellslash(optset_T *args UNUSED) +{ + 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 + return NULL; +} +#endif + +/* + * Process the updated 'wrap' option value. + */ + char * +did_set_wrap(optset_T *args UNUSED) +{ + // If 'wrap' is set, set w_leftcol to zero. + if (curwin->w_p_wrap) + curwin->w_leftcol = 0; + return NULL; +} + +/* + * Process the updated 'equalalways' option value. + */ + char * +did_set_equalalways(optset_T *args) +{ + if (p_ea && !args->os_oldval.boolean) + win_equal(curwin, FALSE, 0); + + return NULL; +} + +/* + * Process the updated 'weirdinvert' option value. + */ + char * +did_set_weirdinvert(optset_T *args) +{ + // When 'weirdinvert' changed, set/reset 't_xs'. + // Then set 'weirdinvert' according to value of 't_xs'. + if (p_wiv && !args->os_oldval.boolean) + T_XS = (char_u *)"y"; + else if (!p_wiv && args->os_oldval.boolean) + T_XS = empty_option; + p_wiv = (*T_XS != NUL); + + return NULL; +} + +#if defined(FEAT_BEVAL_GUI) || defined(PROTO) +/* + * Process the updated 'ballooneval' option value. + */ + char * +did_set_ballooneval(optset_T *args) +{ + if (balloonEvalForTerm) + return NULL; + + if (p_beval && !args->os_oldval.boolean) + gui_mch_enable_beval_area(balloonEval); + else if (!p_beval && args->os_oldval.boolean) + gui_mch_disable_beval_area(balloonEval); + + return NULL; +} +#endif + +#if defined(FEAT_BEVAL_TERM) || defined(PROTO) +/* + * Process the updated 'balloonevalterm' option value. + */ + char * +did_set_balloonevalterm(optset_T *args UNUSED) +{ + mch_bevalterm_changed(); + return NULL; +} +#endif + +#if defined(FEAT_AUTOCHDIR) || defined(PROTO) +/* + * Process the updated 'autochdir' option value. + */ + char * +did_set_autochdir(optset_T *args UNUSED) +{ + // Change directories when the 'acd' option is set now. + DO_AUTOCHDIR; + return NULL; +} +#endif + +#if defined(FEAT_DIFF) || defined(PROTO) +/* + * Process the updated 'diff' option value. + */ + char * +did_set_diff(optset_T *args UNUSED) +{ + // 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 + return NULL; +} +#endif + +#if defined(HAVE_INPUT_METHOD) || defined(PROTO) +/* + * Process the updated 'imdisable' option value. + */ + char * +did_set_imdisable(optset_T *args UNUSED) +{ + // Only de-activate it here, it will be enabled when changing mode. + if (p_imdisable) + im_set_active(FALSE); + else if (State & MODE_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); + return NULL; +} +#endif + +#if defined(FEAT_SPELL) || defined(PROTO) +/* + * Process the updated 'spell' option value. + */ + char * +did_set_spell(optset_T *args UNUSED) +{ + if (curwin->w_p_spell) + return parse_spelllang(curwin); + + return NULL; +} +#endif + +#if defined(FEAT_ARABIC) || defined(PROTO) +/* + * Process the updated 'arabic' option value. + */ + char * +did_set_arabic(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + 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 it's 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 + } + + // set 'delcombine' + p_deco = TRUE; + +# ifdef FEAT_KEYMAP + // Force-set the necessary keymap for arabic + errmsg = set_option_value((char_u *)"keymap", + 0L, (char_u *)"arabic", OPT_LOCAL); +# 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 + } + + return errmsg; +} +#endif + +/* + * Process the updated 'number' or 'relativenumber' option value. + */ + char * +did_set_number_relativenumber(optset_T *args UNUSED) +{ +#if (defined(FEAT_SIGNS) && defined(FEAT_GUI)) || defined(PROTO) + if (gui.in_use + && (*curwin->w_p_scl == 'n' && *(curwin->w_p_scl + 1) == 'u') + && curbuf->b_signlist != NULL) + { + // If the 'number' or 'relativenumber' options are modified and + // 'signcolumn' is set to 'number', then clear the screen for a full + // refresh. Otherwise the sign icons are not displayed properly in the + // number column. If the 'number' option is set and only the + // 'relativenumber' option is toggled, then don't refresh the screen + // (optimization). + if (!(curwin->w_p_nu && ((int *)args->os_varp == &curwin->w_p_rnu))) + redraw_all_later(UPD_CLEAR); + } +#endif + return NULL; +} + +#ifdef FEAT_TERMGUICOLORS + char * +did_set_termguicolors(optset_T *args UNUSED) +{ +# ifdef FEAT_VTP + // Do not turn on 'tgc' when 24-bit colors are not supported. + if ( +# ifdef VIMDLL + !gui.in_use && !gui.starting && +# endif + !has_vtp_working()) + { + p_tgc = 0; + args->os_doskip = TRUE; + return e_24_bit_colors_are_not_supported_on_this_environment; + } + if (is_term_win32()) + swap_tcap(); +# endif +# ifdef FEAT_GUI + if (!gui.in_use && !gui.starting) +# endif + highlight_gui_started(); +# ifdef FEAT_VTP + // reset t_Co + if (is_term_win32()) + { + control_console_color_rgb(); + set_termname(T_NAME); + init_highlight(TRUE, FALSE); + } +# endif +# ifdef FEAT_TERMINAL + term_update_colors_all(); + term_update_palette_all(); + term_update_wincolor_all(); +# endif + + return NULL; +} +#endif + +/* + * Set the value of a boolean option, and take care of side effects. + * Returns NULL for success, or an error message for an error. + */ + static char * +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; +#if defined(FEAT_EVAL) + int old_global_value = 0; +#endif + char *errmsg = NULL; + + // Disallow changing some options from secure mode + if ((secure +#ifdef HAVE_SANDBOX + || sandbox != 0 +#endif + ) && (options[opt_idx].flags & P_SECURE)) + return e_not_allowed_here; + +#if defined(FEAT_EVAL) + // Save the global value before changing anything. This is needed as for + // a global-only option setting the "local value" in fact sets the global + // value (since there is only one value). + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + old_global_value = *(int *)get_varp_scope(&(options[opt_idx]), + OPT_GLOBAL); +#endif + + *(int *)varp = value; // set the new value +#ifdef FEAT_EVAL + // Remember where the option was set. + set_option_sctx_idx(opt_idx, opt_flags, current_sctx); +#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. + if (options[opt_idx].opt_did_set_cb != NULL) + { + optset_T args; + + args.os_varp = varp; + args.os_flags = opt_flags; + args.os_oldval.boolean = old_value; + args.os_newval.boolean = value; + args.os_doskip = FALSE; + args.os_errbuf = NULL; + errmsg = options[opt_idx].opt_did_set_cb(&args); + if (args.os_doskip) + return errmsg; + } + + // after handling side effects, call autocommand + + options[opt_idx].flags |= P_WAS_SET; + +#if defined(FEAT_EVAL) + apply_optionset_autocmd(opt_idx, opt_flags, + (long)(old_value ? TRUE : FALSE), + (long)(old_global_value ? TRUE : FALSE), + (long)(value ? TRUE : FALSE), NULL); +#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; + + if ((opt_flags & OPT_NO_REDRAW) == 0) + check_redraw(options[opt_idx].flags); + + return errmsg; +} + +/* + * Process the new 'winheight' or the 'helpheight' option value. + */ + char * +did_set_winheight_helpheight(optset_T *args) +{ + long *pp = (long *)args->os_varp; + char *errmsg = NULL; + + if (p_wh < 1) + { + errmsg = e_argument_must_be_positive; + p_wh = 1; + } + if (p_wmh > p_wh) + { + errmsg = e_winheight_cannot_be_smaller_than_winminheight; + p_wh = p_wmh; + } + if (p_hh < 0) + { + errmsg = e_argument_must_be_positive; + p_hh = 0; + } + + // Change window height NOW + if (!ONE_WINDOW) + { + 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); + } + + return errmsg; +} + +/* + * Process the new 'winminheight' option value. + */ + char * +did_set_winminheight(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (p_wmh < 0) + { + errmsg = e_argument_must_be_positive; + p_wmh = 0; + } + if (p_wmh > p_wh) + { + errmsg = e_winheight_cannot_be_smaller_than_winminheight; + p_wmh = p_wh; + } + win_setminheight(); + + return errmsg; +} + +/* + * Process the new 'winwidth' option value. + */ + char * +did_set_winwidth(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (p_wiw < 1) + { + errmsg = e_argument_must_be_positive; + p_wiw = 1; + } + if (p_wmw > p_wiw) + { + errmsg = e_winwidth_cannot_be_smaller_than_winminwidth; + p_wiw = p_wmw; + } + + // Change window width NOW + if (!ONE_WINDOW && curwin->w_width < p_wiw) + win_setwidth((int)p_wiw); + + return errmsg; +} + +/* + * Process the new 'winminwidth' option value. + */ + char * +did_set_winminwidth(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (p_wmw < 0) + { + errmsg = e_argument_must_be_positive; + p_wmw = 0; + } + if (p_wmw > p_wiw) + { + errmsg = e_winwidth_cannot_be_smaller_than_winminwidth; + p_wmw = p_wiw; + } + win_setminwidth(); + + return errmsg; +} + +/* + * Process the new 'laststatus' option value. + */ + char * +did_set_laststatus(optset_T *args UNUSED) +{ + last_status(FALSE); // (re)set last window status line + return NULL; +} + +/* + * Process the new 'showtabline' option value. + */ + char * +did_set_showtabline(optset_T *args UNUSED) +{ + shell_new_rows(); // recompute window positions and heights + return NULL; +} + +#if defined(FEAT_GUI) || defined(PROTO) +/* + * Process the new 'linespace' option value. + */ + char * +did_set_linespace(optset_T *args UNUSED) +{ + // 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); + return NULL; +} +#endif + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * Process the new 'foldlevel' option value. + */ + char * +did_set_foldlevel(optset_T *args UNUSED) +{ + if (curwin->w_p_fdl < 0) + curwin->w_p_fdl = 0; + newFoldLevel(); + return NULL; +} + +/* + * Process the new 'foldminlines' option value. + */ + char * +did_set_foldminlines(optset_T *args UNUSED) +{ + foldUpdateAll(curwin); + return NULL; +} + +/* + * Process the new 'foldnestmax' option value. + */ + char * +did_set_foldnestmax(optset_T *args UNUSED) +{ + if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin)) + foldUpdateAll(curwin); + return NULL; +} + +/* + * Process the new 'foldcolumn' option value. + */ + char * +did_set_foldcolumn(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (curwin->w_p_fdc < 0) + { + errmsg = e_argument_must_be_positive; + curwin->w_p_fdc = 0; + } + else if (curwin->w_p_fdc > 12) + { + errmsg = e_invalid_argument; + curwin->w_p_fdc = 12; + } + + return errmsg; +} +#endif + +/* + * Process the new 'shiftwidth' or the 'tabstop' option value. + */ + char * +did_set_shiftwidth_tabstop(optset_T *args) +{ + long *pp = (long *)args->os_varp; + char *errmsg = NULL; + + if (curbuf->b_p_sw < 0) + { + errmsg = e_argument_must_be_positive; +#ifdef FEAT_VARTABS + // Use the first 'vartabstop' value, or 'tabstop' if vts isn't in use. + curbuf->b_p_sw = tabstop_count(curbuf->b_p_vts_array) > 0 + ? tabstop_first(curbuf->b_p_vts_array) + : curbuf->b_p_ts; +#else + curbuf->b_p_sw = curbuf->b_p_ts; +#endif + } + +#ifdef FEAT_FOLDING + if (foldmethodIsIndent(curwin)) + foldUpdateAll(curwin); +#endif + // 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); + + return errmsg; +} + +/* + * Process the new 'maxcombine' option value. + */ + char * +did_set_maxcombine(optset_T *args UNUSED) +{ + if (p_mco > MAX_MCO) + p_mco = MAX_MCO; + else if (p_mco < 0) + p_mco = 0; + screenclear(); // will re-allocate the screen + return NULL; +} + +/* + * Process the new 'iminsert' option value. + */ + char * +did_set_iminsert(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (curbuf->b_p_iminsert < 0 || curbuf->b_p_iminsert > B_IMODE_LAST) + { + errmsg = e_invalid_argument; + 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_KEYMAP) + // Show/unshow value of 'keymap' in status lines. + status_redraw_curbuf(); +#endif + + return errmsg; +} + +#if (defined(FEAT_XIM) && defined(FEAT_GUI_GTK)) || defined(PROTO) +/* + * Process the new 'imstyle' option value. + */ + char * +did_set_imstyle(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (p_imst != IM_ON_THE_SPOT && p_imst != IM_OVER_THE_SPOT) + errmsg = e_invalid_argument; + + return errmsg; +} +#endif + +/* + * Process the new 'window' option value. + */ + char * +did_set_window(optset_T *args UNUSED) +{ + if (p_window < 1) + p_window = 1; + else if (p_window >= Rows) + p_window = Rows - 1; + return NULL; +} + +/* + * Process the new 'imsearch' option value. + */ + char * +did_set_imsearch(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (curbuf->b_p_imsearch < -1 || curbuf->b_p_imsearch > B_IMODE_LAST) + { + errmsg = e_invalid_argument; + curbuf->b_p_imsearch = B_IMODE_NONE; + } + p_imsearch = curbuf->b_p_imsearch; + + return errmsg; +} + +/* + * Process the new 'titlelen' option value. + */ + char * +did_set_titlelen(optset_T *args) +{ + long old_value = args->os_oldval.number; + char *errmsg = NULL; + + // if 'titlelen' has changed, redraw the title + if (p_titlelen < 0) + { + errmsg = e_argument_must_be_positive; + p_titlelen = 85; + } + if (starting != NO_SCREEN && old_value != p_titlelen) + need_maketitle = TRUE; + + return errmsg; +} + +/* + * Process the new 'cmdheight' option value. + */ + char * +did_set_cmdheight(optset_T *args) +{ + long old_value = args->os_oldval.number; + char *errmsg = NULL; + + // if p_ch changed value, change the command line height + if (p_ch < 1) + { + errmsg = e_argument_must_be_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 + || tabline_height() + topframe->fr_height != Rows - p_ch) + && full_screen +#ifdef FEAT_GUI + && !gui.starting +#endif + ) + command_height(); + + return errmsg; +} + +/* + * Process the new 'updatecount' option value. + */ + char * +did_set_updatecount(optset_T *args) +{ + long old_value = args->os_oldval.number; + char *errmsg = NULL; + + // when 'updatecount' changes from zero to non-zero, open swap files + if (p_uc < 0) + { + errmsg = e_argument_must_be_positive; + p_uc = 100; + } + if (p_uc && !old_value) + ml_open_files(); + + return errmsg; +} + +#if defined(FEAT_CONCEAL) || defined(PROTO) +/* + * Process the new 'conceallevel' option value. + */ + char * +did_set_conceallevel(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (curwin->w_p_cole < 0) + { + errmsg = e_argument_must_be_positive; + curwin->w_p_cole = 0; + } + else if (curwin->w_p_cole > 3) + { + errmsg = e_invalid_argument; + curwin->w_p_cole = 3; + } + + return errmsg; +} +#endif + +#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) +/* + * Process the new 'pyxversion' option value. + */ + char * +did_set_pyxversion(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (p_pyx != 0 && p_pyx != 2 && p_pyx != 3) + errmsg = e_invalid_argument; + + return errmsg; +} +#endif + +/* + * Process the new global 'undolevels' option value. + */ + static void +did_set_global_undolevels(long value, long old_value) +{ + // sync undo before 'undolevels' changes + + // use the old value, otherwise u_sync() may not work properly + p_ul = old_value; + u_sync(TRUE); + p_ul = value; +} + +/* + * Process the new buffer local 'undolevels' option value. + */ + static void +did_set_buflocal_undolevels(long value, long old_value) +{ + // 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; +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) +/* + * Process the new 'numberwidth' option value. + */ + char * +did_set_numberwidth(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + // 'numberwidth' must be positive + if (curwin->w_p_nuw < 1) + { + errmsg = e_argument_must_be_positive; + curwin->w_p_nuw = 1; + } + if (curwin->w_p_nuw > 20) + { + errmsg = e_invalid_argument; + curwin->w_p_nuw = 20; + } + curwin->w_nrwidth_line_count = 0; // trigger a redraw + + return errmsg; +} +#endif + +/* + * Process the new 'textwidth' option value. + */ + char * +did_set_textwidth(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (curbuf->b_p_tw < 0) + { + errmsg = e_argument_must_be_positive; + curbuf->b_p_tw = 0; + } +#ifdef FEAT_SYN_HL + { + win_T *wp; + tabpage_T *tp; + + FOR_ALL_TAB_WINDOWS(tp, wp) + check_colorcolumn(wp); + } +#endif + + return errmsg; +} + +/* + * Process the new 'undolevels' option value. + */ + char * +did_set_undolevels(optset_T *args) +{ + long *pp = (long *)args->os_varp; + + if (pp == &p_ul) // global 'undolevels' + did_set_global_undolevels(args->os_newval.number, + args->os_oldval.number); + else if (pp == &curbuf->b_p_ul) // buffer local 'undolevels' + did_set_buflocal_undolevels(args->os_newval.number, + args->os_oldval.number); + + return NULL; +} + +/* + * Check the bounds of numeric options. + */ + static char * +check_num_option_bounds( + long *pp, + long old_value, + long old_Rows, + long old_Columns, + char *errbuf, + size_t errbuflen, + char *errmsg) +{ + if (Rows < min_rows() && full_screen) + { + if (errbuf != NULL) + { + vim_snprintf(errbuf, errbuflen, + _(e_need_at_least_nr_lines), min_rows()); + errmsg = errbuf; + } + Rows = min_rows(); + } + if (Columns < MIN_COLUMNS && full_screen) + { + if (errbuf != NULL) + { + vim_snprintf(errbuf, errbuflen, + _(e_need_at_least_nr_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_argument_must_be_positive; + curbuf->b_p_ts = 8; + } + else if (curbuf->b_p_ts > TABSTOP_MAX) + { + errmsg = e_invalid_argument; + curbuf->b_p_ts = 8; + } + if (p_tm < 0) + { + errmsg = e_argument_must_be_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_invalid_scroll_size; + 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_argument_must_be_positive; + p_hi = 0; + } + else if (p_hi > 10000) + { + errmsg = e_invalid_argument; + p_hi = 10000; + } + if (p_re < 0 || p_re > 2) + { + errmsg = e_invalid_argument; + p_re = 0; + } + if (p_report < 0) + { + errmsg = e_argument_must_be_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_invalid_scroll_size; + p_sj = 1; + } + } + if (p_so < 0 && full_screen) + { + errmsg = e_argument_must_be_positive; + p_so = 0; + } + if (p_siso < 0 && full_screen) + { + errmsg = e_argument_must_be_positive; + p_siso = 0; + } + if (p_cwh < 1) + { + errmsg = e_argument_must_be_positive; + p_cwh = 1; + } + if (p_ut < 0) + { + errmsg = e_argument_must_be_positive; + p_ut = 2000; + } + if (p_ss < 0) + { + errmsg = e_argument_must_be_positive; + p_ss = 0; + } + + return errmsg; +} + +/* + * Set the value of a number option, and take care of side effects. + * Returns NULL for success, or an error message for an error. + */ + static char * +set_num_option( + int opt_idx, // index in options[] table + char_u *varp, // pointer to the option variable + long value, // new value + char *errbuf, // buffer for error messages + size_t errbuflen, // length of "errbuf" + int opt_flags) // OPT_LOCAL, OPT_GLOBAL, + // OPT_MODELINE, etc. +{ + char *errmsg = NULL; + long old_value = *(long *)varp; +#if defined(FEAT_EVAL) + long old_global_value = 0; // only used when setting a local and + // global option +#endif + 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_not_allowed_here; + +#if defined(FEAT_EVAL) + // Save the global value before changing anything. This is needed as for + // a global-only option setting the "local value" in fact sets the global + // value (since there is only one value). + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + old_global_value = *(long *)get_varp_scope(&(options[opt_idx]), + OPT_GLOBAL); +#endif + + *pp = value; +#ifdef FEAT_EVAL + // Remember where the option was set. + set_option_sctx_idx(opt_idx, opt_flags, current_sctx); +#endif +#ifdef FEAT_GUI + need_mouse_correct = TRUE; +#endif + + // Invoke the option specific callback function to validate and apply the + // new value. + if (options[opt_idx].opt_did_set_cb != NULL) + { + optset_T args; + + args.os_varp = varp; + args.os_flags = opt_flags; + args.os_oldval.number = old_value; + args.os_newval.number = value; + args.os_errbuf = NULL; + errmsg = options[opt_idx].opt_did_set_cb(&args); + } + + // Check the bounds for numeric options here + errmsg = check_num_option_bounds(pp, old_value, old_Rows, old_Columns, + errbuf, errbuflen, errmsg); + + // 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_EVAL) + apply_optionset_autocmd(opt_idx, opt_flags, old_value, old_global_value, + value, errmsg); +#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; + if ((opt_flags & OPT_NO_REDRAW) == 0) + check_redraw(options[opt_idx].flags); + + return errmsg; +} + +/* + * Called after an option changed: check if something needs to be redrawn. + */ + void +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); + + if ((flags & P_RSTAT) || all) // mark all status lines dirty + status_redraw_all(); + + if ((flags & P_RBUF) || (flags & P_RWIN) || all) + changed_window_setting(); + if (flags & P_RBUF) + redraw_curbuf_later(UPD_NOT_VALID); + if (flags & P_RWINONLY) + redraw_later(UPD_NOT_VALID); + if (doclear) + redraw_all_later(UPD_CLEAR); + else if (all) + redraw_all_later(UPD_NOT_VALID); +} + +/* + * Find index for option 'arg'. + * Return -1 if not found. + */ + int +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. + if (arg[0] < 'a' || arg[0] > 'z') + return -1; + + is_term_opt = (arg[0] == 't' && arg[1] == '_'); + if (is_term_opt) + opt_idx = quick_tab[26]; + else + opt_idx = quick_tab[CharOrdLow(arg[0])]; + for ( ; (s = options[opt_idx].fullname) != NULL; opt_idx++) + { + if (STRCMP(arg, s) == 0) // match full name + break; + } + if (s == NULL && !is_term_opt) + { + opt_idx = quick_tab[CharOrdLow(arg[0])]; + for ( ; options[opt_idx].fullname != NULL; opt_idx++) + { + s = options[opt_idx].shortname; + if (s != NULL && STRCMP(arg, s) == 0) // match short name + break; + s = NULL; + } + } + if (s == NULL) + opt_idx = -1; + return opt_idx; +} + +#if defined(FEAT_EVAL) || defined(FEAT_TCL) || defined(FEAT_MZSCHEME) \ + || defined(FEAT_SPELL) || defined(PROTO) +/* + * Get the value for an option. + * + * Returns: + * Number option: gov_number, *numval gets value. + * Toggle option: gov_bool, *numval gets value. + * String option: gov_string, *stringval gets allocated string. + * Hidden Number option: gov_hidden_number. + * Hidden Toggle option: gov_hidden_bool. + * Hidden String option: gov_hidden_string. + * Unknown option: gov_unknown. + * + * "flagsp" (if not NULL) is set to the option flags (P_xxxx). + */ + getoption_T +get_option_value( + char_u *name, + long *numval, + char_u **stringval, // NULL when only checking existence + int *flagsp, + int scope) +{ + int opt_idx; + char_u *varp; + + opt_idx = findoption(name); + if (opt_idx < 0) // option not in the table + { + int key; + + if (STRLEN(name) == 4 && name[0] == 't' && name[1] == '_' + && (key = find_key_option(name, FALSE)) != 0) + { + char_u key_name[2]; + char_u *p; + + if (flagsp != NULL) + *flagsp = 0; // terminal option has no flags + + // check for a terminal option + if (key < 0) + { + key_name[0] = KEY2TERMCAP0(key); + key_name[1] = KEY2TERMCAP1(key); + } + else + { + key_name[0] = KS_KEY; + key_name[1] = (key & 0xff); + } + p = find_termcode(key_name); + if (p != NULL) + { + if (stringval != NULL) + *stringval = vim_strsave(p); + return gov_string; + } + } + return gov_unknown; + } + + varp = get_varp_scope(&(options[opt_idx]), scope); + + if (flagsp != NULL) + // Return the P_xxxx option flags. + *flagsp = options[opt_idx].flags; + + if (options[opt_idx].flags & P_STRING) + { + if (varp == NULL) // hidden option + return gov_hidden_string; + if (stringval != NULL) + { + if ((char_u **)varp == &p_pt) // 'pastetoggle' + *stringval = str2special_save(*(char_u **)(varp), FALSE, + FALSE); +#ifdef FEAT_CRYPT + // never return the value of the crypt key + else if ((char_u **)varp == &curbuf->b_p_key + && **(char_u **)(varp) != NUL) + *stringval = vim_strsave((char_u *)"*****"); +#endif + else + *stringval = vim_strsave(*(char_u **)(varp)); + } + return gov_string; + } + + if (varp == NULL) // hidden option + return (options[opt_idx].flags & P_NUM) + ? gov_hidden_number : gov_hidden_bool; + 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 (options[opt_idx].flags & P_NUM) ? gov_number : gov_bool; +} +#endif + +#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) +/* + * Returns the option attributes and its value. Unlike the above function it + * will return either global value or local value of the option depending on + * what was requested, but it will never return global value if it was + * requested to return local one and vice versa. Neither it will return + * buffer-local value if it was requested to return window-local one. + * + * Pretends that option is absent if it is not present in the requested scope + * (i.e. has no global, window-local or buffer-local value depending on + * opt_type). Uses + * + * Returned flags: + * 0 hidden or unknown option, also option that does not have requested + * type (see SREQ_* in vim.h) + * see SOPT_* in vim.h for other flags + * + * Possible opt_type values: see SREQ_* in vim.h + */ + int +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 + { + buf_T *save_curbuf = curbuf; + + // only getting a pointer, no need to use aucmd_prepbuf() + curbuf = (buf_T *)from; + curwin->w_buffer = curbuf; + varp = get_varp(p); + curbuf = save_curbuf; + curwin->w_buffer = curbuf; + } + } + else if (opt_type == SREQ_WIN) + { + win_T *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; +} + +/* + * Iterate over options. First argument is a pointer to a pointer to a + * structure inside options[] array, second is option type like in the above + * function. + * + * If first argument points to NULL it is assumed that iteration just started + * and caller needs the very first value. + * If first argument points to the end marker function returns NULL and sets + * first argument to NULL. + * + * Returns full option name for current option on each call. + */ + char_u * +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: + internal_error("option_iter_next()"); + return NULL; + } + } + while (ret == NULL); + + return (char_u *)ret->fullname; +} +#endif + +/* + * Return the flags for the option at 'opt_idx'. + */ + long_u +get_option_flags(int opt_idx) +{ + return options[opt_idx].flags; +} + +/* + * Set a flag for the option at 'opt_idx'. + */ + void +set_option_flag(int opt_idx, long_u flag) +{ + options[opt_idx].flags |= flag; +} + +/* + * Clear a flag for the option at 'opt_idx'. + */ + void +clear_option_flag(int opt_idx, long_u flag) +{ + options[opt_idx].flags &= ~flag; +} + +/* + * Returns TRUE if the option at 'opt_idx' is a global option + */ + int +is_global_option(int opt_idx) +{ + return options[opt_idx].indir == PV_NONE; +} + +/* + * Returns TRUE if the option at 'opt_idx' is a global option which also has a + * local value. + */ + int +is_global_local_option(int opt_idx) +{ + return options[opt_idx].indir & PV_BOTH; +} + +/* + * Returns TRUE if the option at 'opt_idx' is a window-local option + */ + int +is_window_local_option(int opt_idx) +{ + return options[opt_idx].var == VAR_WIN; +} + +/* + * Returns TRUE if the option at 'opt_idx' is a hidden option + */ + int +is_hidden_option(int opt_idx) +{ + return options[opt_idx].var == NULL; +} + +#if defined(FEAT_CRYPT) || defined(PROTO) +/* + * Returns TRUE if the option at 'opt_idx' is a crypt key option + */ + int +is_crypt_key_option(int opt_idx) +{ + return options[opt_idx].indir == PV_KEY; +} +#endif + +/* + * Set the value of option "name". + * Use "string" for string options, use "number" for other options. + * + * Returns NULL on success or an untranslated error message on error. + */ + char * +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; + static char errbuf[80]; + + opt_idx = findoption(name); + if (opt_idx < 0) + { + int key; + + if (STRLEN(name) == 4 && name[0] == 't' && name[1] == '_' + && (key = find_key_option(name, FALSE)) != 0) + { + char_u key_name[2]; + + if (key < 0) + { + key_name[0] = KEY2TERMCAP0(key); + key_name[1] = KEY2TERMCAP1(key); + } + else + { + key_name[0] = KS_KEY; + key_name[1] = (key & 0xff); + } + add_termcode(key_name, string, FALSE); + if (full_screen) + ttest(FALSE); + redraw_all_later(UPD_CLEAR); + return NULL; + } + + semsg(_(e_unknown_option_str_2), 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_not_allowed_in_sandbox)); + return NULL; + } +#endif + if (flags & P_STRING) + return set_string_option(opt_idx, string, opt_flags, errbuf); + + 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. + semsg(_(e_number_required_after_str_equal_str), + name, string); + return NULL; // do nothing as we hit an error + + } + } + if (flags & P_NUM) + { + return set_num_option(opt_idx, varp, number, + errbuf, sizeof(errbuf), opt_flags); + } + else + return set_bool_option(opt_idx, varp, (int)number, opt_flags); + } + + } + return NULL; +} + +/* + * Call set_option_value() and when an error is returned report it. + */ + void +set_option_value_give_err( + char_u *name, + long number, + char_u *string, + int opt_flags) // OPT_LOCAL or 0 (both) +{ + char *errmsg = set_option_value(name, number, string, opt_flags); + + if (errmsg != NULL) + emsg(_(errmsg)); +} + +/* + * Get the terminal code for a terminal option. + * Returns NULL when not found. + */ + char_u * +get_term_code(char_u *tname) +{ + int opt_idx; + char_u *varp; + + if (tname[0] != 't' || tname[1] != '_' || + tname[2] == NUL || tname[3] == NUL) + return NULL; + if ((opt_idx = findoption(tname)) >= 0) + { + varp = get_varp(&(options[opt_idx])); + if (varp != NULL) + varp = *(char_u **)(varp); + return varp; + } + return find_termcode(tname + 2); +} + + char_u * +get_highlight_default(void) +{ + int i; + + i = findoption((char_u *)"hl"); + if (i >= 0) + return options[i].def_val[VI_DEFAULT]; + return (char_u *)NULL; +} + + char_u * +get_encoding_default(void) +{ + int i; + + i = findoption((char_u *)"enc"); + if (i >= 0) + return options[i].def_val[VI_DEFAULT]; + return (char_u *)NULL; +} + +#if defined(FEAT_QUICKFIX) || defined(PROTO) + int +is_option_allocated(char *name) +{ + int idx = findoption((char_u *)name); + + return idx >= 0 && (options[idx].flags & P_ALLOCED); +} +#endif + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Return TRUE if "name" is a string option. + * Returns FALSE if option "name" does not exist. + */ + int +is_string_option(char_u *name) +{ + int idx = findoption(name); + + return idx >= 0 && (options[idx].flags & P_STRING); +} +#endif + +/* + * Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number. + * When "has_lt" is true there is a '<' before "*arg_arg". + * Returns 0 when the key is not recognized. + */ + static int +find_key_option(char_u *arg_arg, int has_lt) +{ + int key = 0; + int modifiers; + char_u *arg = arg_arg; + + // 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 if (has_lt) + { + --arg; // put arg at the '<' + modifiers = 0; + key = find_special_key(&arg, &modifiers, + FSK_KEYCODE | FSK_KEEP_X_KEY | FSK_SIMPLIFY, NULL); + if (modifiers) // can't handle modifiers here + key = 0; + } + return key; +} + +/* + * if 'all' == 0: show changed options + * if 'all' == 1: show all normal options + * if 'all' == 2: show all terminal options + */ + static void +showoptions( + 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 = ALLOC_MULT(struct vimoption *, OPTION_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) + // When "opt_flags" has OPT_ONECOLUMN do everything in run 2. + for (run = 1; run <= 2 && !got_int; ++run) + { + // collect the items in items[] + item_count = 0; + for (p = &options[0]; p->fullname != NULL; p++) + { + // apply :filter /pat/ + if (message_filtered((char_u *)p->fullname)) + continue; + + varp = NULL; + isterm = istermoption(p); + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) != 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, p_cp)))) + { + if (opt_flags & OPT_ONECOLUMN) + len = Columns; + else if (p->flags & P_BOOL) + len = 1; // a toggle option fits always + else + { + option_value2string(p, opt_flags); + len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1; + } + if ((len <= INC - GAP && run == 1) || + (len > INC - GAP && run == 2)) + items[item_count++] = p; + } + } + + // display the items + if (run == 1) + { + cols = (Columns + GAP - 3) / INC; + if (cols == 0) + cols = 1; + rows = (item_count + cols - 1) / cols; + } + else // run == 2 + rows = item_count; + for (row = 0; row < rows && !got_int; ++row) + { + msg_putchar('\n'); // go to next line + if (got_int) // 'q' typed in more + break; + col = 0; + for (i = row; i < item_count; i += rows) + { + msg_col = col; // make columns + showoneopt(items[i], opt_flags); + col += INC; + } + out_flush(); + ui_breakcheck(); + } + } + vim_free(items); +} + +/* + * Return TRUE if option "p" has its default value. + */ + static int +optval_default(struct vimoption *p, char_u *varp, int compatible) +{ + int dvi; + + if (varp == NULL) + return TRUE; // hidden option is always at default + dvi = ((p->flags & P_VI_DEF) || compatible) ? 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); +} + +/* + * showoneopt: show the value of one option + * must not be called with a hidden option! + */ + static void +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; +} + +/* + * Write modified options as ":set" commands to a file. + * + * There are three values for "opt_flags": + * OPT_GLOBAL: Write global option values and fresh values of + * buffer-local options (used for start of a session + * file). + * OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for + * curwin (used for a vimrc file). + * OPT_LOCAL: Write buffer-local option values for curbuf, fresh + * and local values for window-local options of + * curwin. Local values are also written when at the + * default value, because a modeline or autocommand + * may have set them when doing ":edit file" and the + * user has set them back at the default or fresh + * value. + * When "local_only" is TRUE, don't write fresh + * values, only local values (for ":mkview"). + * (fresh value = value used for a new buffer or window for a local option). + * + * Return FAIL on error, OK otherwise. + */ + int +makeset(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, p_cp)) + continue; + + if ((opt_flags & OPT_SKIPRTP) && (p->var == (char_u *)&p_rtp + || p->var == (char_u *)&p_pp)) + 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, p_cp)) + { + 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 + { + 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 || +#endif + p->indir == PV_FT) + { + if (fprintf(fd, "if &%s != '%s'", p->fullname, + *(char_u **)(varp)) < 0 + || put_eol(fd) < 0) + return FAIL; + do_endif = TRUE; + } + if (put_setstring(fd, cmd, p->fullname, (char_u **)varp, + p->flags) == FAIL) + return FAIL; + if (do_endif) + { + if (put_line(fd, "endif") == FAIL) + return FAIL; + } + } + } + } + } + return OK; +} + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * Generate set commands for the local fold options only. Used when + * 'sessionoptions' or 'viewoptions' contains "folds" but not "options". + */ + int +makefoldset(FILE *fd) +{ + if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, 0) == FAIL +# ifdef FEAT_EVAL + || put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, 0) + == FAIL +# endif + || put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, 0) + == FAIL + || put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, 0) + == FAIL + || put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL + || put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL + || put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL + || put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL + ) + return FAIL; + + return OK; +} +#endif + + static int +put_setstring( + FILE *fd, + char *cmd, + char *name, + char_u **valuep, + long_u flags) +{ + char_u *s; + char_u *buf = NULL; + char_u *part = NULL; + char_u *p; + + 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, FALSE), 2) == FAIL) + return FAIL; + } + // expand the option value, replace $HOME by ~ + else if ((flags & P_EXPAND) != 0) + { + int size = (int)STRLEN(*valuep) + 1; + + // replace home directory in the whole option value into "buf" + buf = alloc(size); + if (buf == NULL) + goto fail; + home_replace(NULL, *valuep, buf, size, FALSE); + + // If the option value is longer than MAXPATHL, we need to append + // each comma separated part of the option separately, so that it + // can be expanded when read back. + if (size >= MAXPATHL && (flags & P_COMMA) != 0 + && vim_strchr(*valuep, ',') != NULL) + { + part = alloc(size); + if (part == NULL) + goto fail; + + // write line break to clear the option, e.g. ':set rtp=' + if (put_eol(fd) == FAIL) + goto fail; + + p = buf; + while (*p != NUL) + { + // for each comma separated option part, append value to + // the option, :set rtp+=value + if (fprintf(fd, "%s %s+=", cmd, name) < 0) + goto fail; + (void)copy_option_part(&p, part, size, ","); + if (put_escstr(fd, part, 2) == FAIL || put_eol(fd) == FAIL) + goto fail; + } + vim_free(buf); + vim_free(part); + return OK; + } + 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; +fail: + vim_free(buf); + vim_free(part); + return FAIL; +} + + static int +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; +} + + static int +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; +} + +/* + * Clear all the terminal options. + * If the option has been allocated, free the memory. + * Terminal options are never hidden or indirect. + */ + void +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. + mch_setmouse(FALSE); // switch mouse off + mch_restore_title(SAVE_RESTORE_BOTH); // restore window titles +#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(); +} + + void +free_termoptions(void) +{ + struct vimoption *p; + + for (p = options; 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); +#ifdef FEAT_EVAL + // remember where the option was cleared + set_option_sctx_idx((int)(p - options), OPT_GLOBAL, current_sctx); +#endif + } + clear_termcodes(); +} + +/* + * Free the string for one term option, if it was allocated. + * Set the string to empty_option and clear allocated flag. + * "var" points to the option value. + */ + void +free_one_termoption(char_u *var) +{ + struct vimoption *p; + + for (p = &options[0]; p->fullname != NULL; p++) + if (p->var == var) + { + if (p->flags & P_ALLOCED) + free_string_option(*(char_u **)(p->var)); + *(char_u **)(p->var) = empty_option; + p->flags &= ~P_ALLOCED; + break; + } +} + +/* + * Set the terminal option defaults to the current value. + * Used after setting the terminal name. + */ + void +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 + } + } + } +} + +/* + * return TRUE if 'p' starts with 't_' + */ + static int +istermoption(struct vimoption *p) +{ + return (p->fullname[0] == 't' && p->fullname[1] == '_'); +} + +/* + * Returns TRUE if the option at 'opt_idx' starts with 't_' + */ + int +istermoption_idx(int opt_idx) +{ + return istermoption(&options[opt_idx]); +} + +#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO) +/* + * Unset local option value, similar to ":set opt<". + */ + void +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; + case PV_SISO: + curwin->w_p_siso = -1; + break; + case PV_SO: + curwin->w_p_so = -1; + 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 + case PV_DICT: + clear_string_option(&buf->b_p_dict); + break; + case PV_TSR: + clear_string_option(&buf->b_p_tsr); + break; +# ifdef FEAT_COMPL_FUNC + case PV_TSRFU: + clear_string_option(&buf->b_p_tsrfu); + break; +# endif + case PV_FP: + clear_string_option(&buf->b_p_fp); + break; +# 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_LINEBREAK + case PV_SBR: + clear_string_option(&((win_T *)from)->w_p_sbr); + 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; + case PV_LW: + clear_string_option(&buf->b_p_lw); + break; + case PV_MENC: + clear_string_option(&buf->b_p_menc); + break; + case PV_LCS: + clear_string_option(&((win_T *)from)->w_p_lcs); + set_listchars_option((win_T *)from, ((win_T *)from)->w_p_lcs, TRUE); + redraw_later(UPD_NOT_VALID); + break; + case PV_FCS: + clear_string_option(&((win_T *)from)->w_p_fcs); + set_fillchars_option((win_T *)from, ((win_T *)from)->w_p_fcs, TRUE); + redraw_later(UPD_NOT_VALID); + break; + case PV_VE: + clear_string_option(&((win_T *)from)->w_p_ve); + ((win_T *)from)->w_ve_flags = 0; + break; + } +} +#endif + +/* + * Get pointer to option variable, depending on local or global scope. + * "scope" can be OPT_LOCAL, OPT_GLOBAL or a combination. + */ + static char_u * +get_varp_scope(struct vimoption *p, int scope) +{ + if ((scope & OPT_GLOBAL) && p->indir != PV_NONE) + { + if (p->var == VAR_WIN) + return (char_u *)GLOBAL_WO(get_varp(p)); + return p->var; + } + if ((scope & OPT_LOCAL) && ((int)p->indir & PV_BOTH)) + { + switch ((int)p->indir) + { + case PV_FP: return (char_u *)&(curbuf->b_p_fp); +#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); + case PV_SISO: return (char_u *)&(curwin->w_p_siso); + case PV_SO: return (char_u *)&(curwin->w_p_so); +#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 + case PV_DICT: return (char_u *)&(curbuf->b_p_dict); + case PV_TSR: return (char_u *)&(curbuf->b_p_tsr); +#ifdef FEAT_COMPL_FUNC + case PV_TSRFU: return (char_u *)&(curbuf->b_p_tsrfu); +#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_LINEBREAK + case PV_SBR: return (char_u *)&(curwin->w_p_sbr); +#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); + case PV_LW: return (char_u *)&(curbuf->b_p_lw); + case PV_BKC: return (char_u *)&(curbuf->b_p_bkc); + case PV_MENC: return (char_u *)&(curbuf->b_p_menc); + case PV_LCS: return (char_u *)&(curwin->w_p_lcs); + case PV_FCS: return (char_u *)&(curwin->w_p_fcs); + case PV_VE: return (char_u *)&(curwin->w_p_ve); + + } + return NULL; // "cannot happen" + } + return get_varp(p); +} + +/* + * Get pointer to option variable at 'opt_idx', depending on local or global + * scope. + */ + char_u * +get_option_varp_scope(int opt_idx, int scope) +{ + return get_varp_scope(&(options[opt_idx]), scope); +} + +/* + * Get pointer to option variable. + */ + static char_u * +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; + case PV_SISO: return curwin->w_p_siso >= 0 + ? (char_u *)&(curwin->w_p_siso) : p->var; + case PV_SO: return curwin->w_p_so >= 0 + ? (char_u *)&(curwin->w_p_so) : 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 + 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; +#ifdef FEAT_COMPL_FUNC + case PV_TSRFU: return *curbuf->b_p_tsrfu != NUL + ? (char_u *)&(curbuf->b_p_tsrfu) : p->var; +#endif + case PV_FP: return *curbuf->b_p_fp != NUL + ? (char_u *)&(curbuf->b_p_fp) : p->var; +#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_LINEBREAK + case PV_SBR: return *curwin->w_p_sbr != NUL + ? (char_u *)&(curwin->w_p_sbr) : 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; + case PV_LW: return *curbuf->b_p_lw != NUL + ? (char_u *)&(curbuf->b_p_lw) : p->var; + case PV_MENC: return *curbuf->b_p_menc != NUL + ? (char_u *)&(curbuf->b_p_menc) : p->var; +#ifdef FEAT_ARABIC + case PV_ARAB: return (char_u *)&(curwin->w_p_arab); +#endif + case PV_LIST: return (char_u *)&(curwin->w_p_list); + case PV_LCS: return *curwin->w_p_lcs != NUL + ? (char_u *)&(curwin->w_p_lcs) : p->var; + case PV_FCS: return *curwin->w_p_fcs != NUL + ? (char_u *)&(curwin->w_p_fcs) : p->var; + case PV_VE: return *curwin->w_p_ve != NUL + ? (char_u *)&(curwin->w_p_ve) : p->var; +#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_CULOPT: return (char_u *)&(curwin->w_p_culopt); + 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 + case PV_WFH: return (char_u *)&(curwin->w_p_wfh); + case PV_WFW: return (char_u *)&(curwin->w_p_wfw); +#if 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_SMS: return (char_u *)&(curwin->w_p_sms); + 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 + case PV_WCR: return (char_u *)&(curwin->w_p_wcr); + case PV_SCBIND: return (char_u *)&(curwin->w_p_scb); + case PV_CRBIND: return (char_u *)&(curwin->w_p_crb); +#ifdef FEAT_CONCEAL + case PV_COCU: return (char_u *)&(curwin->w_p_cocu); + case PV_COLE: return (char_u *)&(curwin->w_p_cole); +#endif +#ifdef FEAT_TERMINAL + case PV_TWK: return (char_u *)&(curwin->w_p_twk); + case PV_TWS: return (char_u *)&(curwin->w_p_tws); + case PV_TWSL: return (char_u *)&(curbuf->b_p_twsl); +#endif + + case PV_AI: return (char_u *)&(curbuf->b_p_ai); + case PV_BIN: return (char_u *)&(curbuf->b_p_bin); + case PV_BOMB: return (char_u *)&(curbuf->b_p_bomb); + case PV_BH: return (char_u *)&(curbuf->b_p_bh); + case PV_BT: return (char_u *)&(curbuf->b_p_bt); + case PV_BL: return (char_u *)&(curbuf->b_p_bl); + case PV_CI: return (char_u *)&(curbuf->b_p_ci); + 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); + case PV_CINSD: return (char_u *)&(curbuf->b_p_cinsd); + case PV_CINW: return (char_u *)&(curbuf->b_p_cinw); + case PV_COM: return (char_u *)&(curbuf->b_p_com); +#ifdef FEAT_FOLDING + case PV_CMS: return (char_u *)&(curbuf->b_p_cms); +#endif + case PV_CPT: return (char_u *)&(curbuf->b_p_cpt); +#ifdef BACKSLASH_IN_FILENAME + case PV_CSL: return (char_u *)&(curbuf->b_p_csl); +#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 +#ifdef FEAT_EVAL + case PV_TFU: return (char_u *)&(curbuf->b_p_tfu); +#endif + case PV_EOF: return (char_u *)&(curbuf->b_p_eof); + 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); + case PV_FENC: return (char_u *)&(curbuf->b_p_fenc); + case PV_FF: return (char_u *)&(curbuf->b_p_ff); + case PV_FT: return (char_u *)&(curbuf->b_p_ft); + 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_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 + case PV_LISP: return (char_u *)&(curbuf->b_p_lisp); + case PV_LOP: return (char_u *)&(curbuf->b_p_lop); + 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); + case PV_QE: return (char_u *)&(curbuf->b_p_qe); + case PV_RO: return (char_u *)&(curbuf->b_p_ro); + case PV_SI: return (char_u *)&(curbuf->b_p_si); + case PV_SN: return (char_u *)&(curbuf->b_p_sn); + case PV_STS: return (char_u *)&(curbuf->b_p_sts); + case PV_SUA: return (char_u *)&(curbuf->b_p_sua); + 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); + case PV_SPO: return (char_u *)&(curwin->w_s->b_p_spo); +#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 +#ifdef FEAT_VARTABS + case PV_VSTS: return (char_u *)&(curbuf->b_p_vsts); + case PV_VTS: return (char_u *)&(curbuf->b_p_vts); +#endif + default: iemsg(_(e_get_varp_error)); + } + // always return a valid pointer to avoid a crash! + return (char_u *)&(curbuf->b_p_wm); +} + +/* + * Return a pointer to the variable for option at 'opt_idx' + */ + char_u * +get_option_var(int opt_idx) +{ + return options[opt_idx].var; +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Return the full name of the option at 'opt_idx' + */ + char_u * +get_option_fullname(int opt_idx) +{ + return (char_u *)options[opt_idx].fullname; +} +#endif + +/* + * Return the did_set callback function for the option at 'opt_idx' + */ + opt_did_set_cb_T +get_option_did_set_cb(int opt_idx) +{ + return options[opt_idx].opt_did_set_cb; +} + +/* + * Get the value of 'equalprg', either the buffer-local one or the global one. + */ + char_u * +get_equalprg(void) +{ + if (*curbuf->b_p_ep == NUL) + return p_ep; + return curbuf->b_p_ep; +} + +/* + * Copy options from one window to another. + * Used when splitting a window. + */ + void +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); + after_copy_winopt(wp_to); +} + +/* + * After copying window options: update variables depending on options. + */ + void +after_copy_winopt(win_T *wp) +{ +#ifdef FEAT_LINEBREAK + briopt_check(wp); +#endif +#ifdef FEAT_SYN_HL + fill_culopt_flags(NULL, wp); + check_colorcolumn(wp); +#endif + set_listchars_option(wp, wp->w_p_lcs, TRUE); + set_fillchars_option(wp, wp->w_p_fcs, TRUE); +} + + static char_u * +copy_option_val(char_u *val) +{ + if (val == empty_option) + return empty_option; // no need to allocate memory + return vim_strsave(val); +} + +/* + * Copy the options from one winopt_T to another. + * Doesn't free the old option values in "to", use clear_winopt() for that. + * The 'scroll' option is not copied, because it depends on the window height. + * The 'previewwindow' option is reset, there can be only one preview window. + */ + void +copy_winopt(winopt_T *from, winopt_T *to) +{ +#ifdef FEAT_ARABIC + to->wo_arab = from->wo_arab; +#endif + to->wo_list = from->wo_list; + to->wo_lcs = copy_option_val(from->wo_lcs); + to->wo_fcs = copy_option_val(from->wo_fcs); + to->wo_nu = from->wo_nu; + to->wo_rnu = from->wo_rnu; + to->wo_ve = copy_option_val(from->wo_ve); + to->wo_ve_flags = from->wo_ve_flags; +#ifdef FEAT_LINEBREAK + to->wo_nuw = from->wo_nuw; +#endif +#ifdef FEAT_RIGHTLEFT + to->wo_rl = from->wo_rl; + to->wo_rlc = copy_option_val(from->wo_rlc); +#endif +#ifdef FEAT_LINEBREAK + to->wo_sbr = copy_option_val(from->wo_sbr); +#endif +#ifdef FEAT_STL_OPT + to->wo_stl = copy_option_val(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 = copy_option_val(from->wo_briopt); +#endif + to->wo_wcr = copy_option_val(from->wo_wcr); + to->wo_scb = from->wo_scb; + to->wo_scb_save = from->wo_scb_save; + to->wo_sms = from->wo_sms; + to->wo_crb = from->wo_crb; + to->wo_crb_save = from->wo_crb_save; +#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_culopt = copy_option_val(from->wo_culopt); + to->wo_cc = copy_option_val(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 = copy_option_val(from->wo_cocu); + to->wo_cole = from->wo_cole; +#endif +#ifdef FEAT_TERMINAL + to->wo_twk = copy_option_val(from->wo_twk); + to->wo_tws = copy_option_val(from->wo_tws); +#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 = copy_option_val(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 = copy_option_val(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 = copy_option_val(from->wo_fde); + to->wo_fdt = copy_option_val(from->wo_fdt); +# endif + to->wo_fmr = copy_option_val(from->wo_fmr); +#endif +#ifdef FEAT_SIGNS + to->wo_scl = copy_option_val(from->wo_scl); +#endif + +#ifdef FEAT_EVAL + // Copy the script context so that we know where the value was last set. + mch_memmove(to->wo_script_ctx, from->wo_script_ctx, + sizeof(to->wo_script_ctx)); +#endif + check_winopt(to); // don't want NULL pointers +} + +/* + * Check string options in a window for a NULL value. + */ + static void +check_win_options(win_T *win) +{ + check_winopt(&win->w_onebuf_opt); + check_winopt(&win->w_allbuf_opt); +} + +/* + * Check for NULL pointers in a winopt_T and replace them with empty_option. + */ + static void +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_LINEBREAK + check_string_option(&wop->wo_sbr); +#endif +#ifdef FEAT_STL_OPT + check_string_option(&wop->wo_stl); +#endif +#ifdef FEAT_SYN_HL + check_string_option(&wop->wo_culopt); + check_string_option(&wop->wo_cc); +#endif +#ifdef FEAT_CONCEAL + check_string_option(&wop->wo_cocu); +#endif +#ifdef FEAT_TERMINAL + check_string_option(&wop->wo_twk); + check_string_option(&wop->wo_tws); +#endif +#ifdef FEAT_LINEBREAK + check_string_option(&wop->wo_briopt); +#endif + check_string_option(&wop->wo_wcr); + check_string_option(&wop->wo_lcs); + check_string_option(&wop->wo_fcs); + check_string_option(&wop->wo_ve); +} + +/* + * Free the allocated memory inside a winopt_T. + */ + void +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 + clear_string_option(&wop->wo_wcr); +#ifdef FEAT_RIGHTLEFT + clear_string_option(&wop->wo_rlc); +#endif +#ifdef FEAT_LINEBREAK + clear_string_option(&wop->wo_sbr); +#endif +#ifdef FEAT_STL_OPT + clear_string_option(&wop->wo_stl); +#endif +#ifdef FEAT_SYN_HL + clear_string_option(&wop->wo_culopt); + clear_string_option(&wop->wo_cc); +#endif +#ifdef FEAT_CONCEAL + clear_string_option(&wop->wo_cocu); +#endif +#ifdef FEAT_TERMINAL + clear_string_option(&wop->wo_twk); + clear_string_option(&wop->wo_tws); +#endif + clear_string_option(&wop->wo_lcs); + clear_string_option(&wop->wo_fcs); + clear_string_option(&wop->wo_ve); +} + +#ifdef FEAT_EVAL +// Index into the options table for a buffer-local option enum. +static int buf_opt_idx[BV_COUNT]; +# define COPY_OPT_SCTX(buf, bv) buf->b_p_script_ctx[bv] = options[buf_opt_idx[bv]].script_ctx + +/* + * Initialize buf_opt_idx[] if not done already. + */ + static void +init_buf_opt_idx(void) +{ + static int did_init_buf_opt_idx = FALSE; + int i; + + if (did_init_buf_opt_idx) + return; + did_init_buf_opt_idx = TRUE; + for (i = 0; !istermoption_idx(i); i++) + if (options[i].indir & PV_BUF) + buf_opt_idx[options[i].indir & PV_MASK] = i; +} +#else +# define COPY_OPT_SCTX(buf, bv) +#endif + +/* + * Copy global option values to local options for one buffer. + * Used when creating a new buffer and sometimes when entering a buffer. + * flags: + * BCO_ENTER We will enter the buffer "buf". + * BCO_ALWAYS Always copy the options, but only set b_p_initialized when + * appropriate. + * BCO_NOHELP Don't copy the values to a help buffer. + */ + void +buf_copy_options(buf_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)) + { +#ifdef FEAT_EVAL + CLEAR_FIELD(buf->b_p_script_ctx); + init_buf_opt_idx(); +#endif + // 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, + // reset '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; + buf->b_p_fenc = vim_strsave(p_fenc); + 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; + buf->b_p_bh = empty_option; + buf->b_p_bt = empty_option; + } + else + free_buf_options(buf, FALSE); + + buf->b_p_ai = p_ai; + COPY_OPT_SCTX(buf, BV_AI); + buf->b_p_ai_nopaste = p_ai_nopaste; + buf->b_p_sw = p_sw; + COPY_OPT_SCTX(buf, BV_SW); + buf->b_p_tw = p_tw; + COPY_OPT_SCTX(buf, BV_TW); + buf->b_p_tw_nopaste = p_tw_nopaste; + buf->b_p_tw_nobin = p_tw_nobin; + buf->b_p_wm = p_wm; + COPY_OPT_SCTX(buf, BV_WM); + buf->b_p_wm_nopaste = p_wm_nopaste; + buf->b_p_wm_nobin = p_wm_nobin; + buf->b_p_bin = p_bin; + COPY_OPT_SCTX(buf, BV_BIN); + buf->b_p_bomb = p_bomb; + COPY_OPT_SCTX(buf, BV_BOMB); + buf->b_p_fixeol = p_fixeol; + COPY_OPT_SCTX(buf, BV_FIXEOL); + buf->b_p_et = p_et; + COPY_OPT_SCTX(buf, BV_ET); + buf->b_p_et_nobin = p_et_nobin; + buf->b_p_et_nopaste = p_et_nopaste; + buf->b_p_ml = p_ml; + COPY_OPT_SCTX(buf, BV_ML); + buf->b_p_ml_nobin = p_ml_nobin; + buf->b_p_inf = p_inf; + COPY_OPT_SCTX(buf, BV_INF); + if (cmdmod.cmod_flags & CMOD_NOSWAPFILE) + buf->b_p_swf = FALSE; + else + { + buf->b_p_swf = p_swf; + COPY_OPT_SCTX(buf, BV_SWF); + } + buf->b_p_cpt = vim_strsave(p_cpt); + COPY_OPT_SCTX(buf, BV_CPT); +#ifdef BACKSLASH_IN_FILENAME + buf->b_p_csl = vim_strsave(p_csl); + COPY_OPT_SCTX(buf, BV_CSL); +#endif +#ifdef FEAT_COMPL_FUNC + buf->b_p_cfu = vim_strsave(p_cfu); + COPY_OPT_SCTX(buf, BV_CFU); + set_buflocal_cfu_callback(buf); + buf->b_p_ofu = vim_strsave(p_ofu); + COPY_OPT_SCTX(buf, BV_OFU); + set_buflocal_ofu_callback(buf); +#endif +#ifdef FEAT_EVAL + buf->b_p_tfu = vim_strsave(p_tfu); + COPY_OPT_SCTX(buf, BV_TFU); + set_buflocal_tfu_callback(buf); +#endif + buf->b_p_sts = p_sts; + COPY_OPT_SCTX(buf, BV_STS); + buf->b_p_sts_nopaste = p_sts_nopaste; +#ifdef FEAT_VARTABS + buf->b_p_vsts = vim_strsave(p_vsts); + COPY_OPT_SCTX(buf, BV_VSTS); + if (p_vsts && p_vsts != empty_option) + (void)tabstop_set(p_vsts, &buf->b_p_vsts_array); + else + buf->b_p_vsts_array = NULL; + buf->b_p_vsts_nopaste = p_vsts_nopaste + ? vim_strsave(p_vsts_nopaste) : NULL; +#endif + buf->b_p_sn = p_sn; + COPY_OPT_SCTX(buf, BV_SN); + buf->b_p_com = vim_strsave(p_com); + COPY_OPT_SCTX(buf, BV_COM); +#ifdef FEAT_FOLDING + buf->b_p_cms = vim_strsave(p_cms); + COPY_OPT_SCTX(buf, BV_CMS); +#endif + buf->b_p_fo = vim_strsave(p_fo); + COPY_OPT_SCTX(buf, BV_FO); + buf->b_p_flp = vim_strsave(p_flp); + COPY_OPT_SCTX(buf, BV_FLP); + // NOTE: Valgrind may report a bogus memory leak for 'nrformats' + // when it is set to 8 bytes in defaults.vim. + buf->b_p_nf = vim_strsave(p_nf); + COPY_OPT_SCTX(buf, BV_NF); + buf->b_p_mps = vim_strsave(p_mps); + COPY_OPT_SCTX(buf, BV_MPS); + buf->b_p_si = p_si; + COPY_OPT_SCTX(buf, BV_SI); + buf->b_p_ci = p_ci; + COPY_OPT_SCTX(buf, BV_CI); + + buf->b_p_cin = p_cin; + COPY_OPT_SCTX(buf, BV_CIN); + buf->b_p_cink = vim_strsave(p_cink); + COPY_OPT_SCTX(buf, BV_CINK); + buf->b_p_cino = vim_strsave(p_cino); + COPY_OPT_SCTX(buf, BV_CINO); + buf->b_p_cinsd = vim_strsave(p_cinsd); + COPY_OPT_SCTX(buf, BV_CINSD); + buf->b_p_lop = vim_strsave(p_lop); + COPY_OPT_SCTX(buf, BV_LOP); + + // Don't copy 'filetype', it must be detected + buf->b_p_ft = empty_option; + buf->b_p_pi = p_pi; + COPY_OPT_SCTX(buf, BV_PI); + buf->b_p_cinw = vim_strsave(p_cinw); + COPY_OPT_SCTX(buf, BV_CINW); + buf->b_p_lisp = p_lisp; + COPY_OPT_SCTX(buf, BV_LISP); +#ifdef FEAT_SYN_HL + // Don't copy 'syntax', it must be set + buf->b_p_syn = empty_option; + buf->b_p_smc = p_smc; + COPY_OPT_SCTX(buf, BV_SMC); + buf->b_s.b_syn_isk = empty_option; +#endif +#ifdef FEAT_SPELL + buf->b_s.b_p_spc = vim_strsave(p_spc); + COPY_OPT_SCTX(buf, BV_SPC); + (void)compile_cap_prog(&buf->b_s); + buf->b_s.b_p_spf = vim_strsave(p_spf); + COPY_OPT_SCTX(buf, BV_SPF); + buf->b_s.b_p_spl = vim_strsave(p_spl); + COPY_OPT_SCTX(buf, BV_SPL); + buf->b_s.b_p_spo = vim_strsave(p_spo); + COPY_OPT_SCTX(buf, BV_SPO); +#endif +#if defined(FEAT_EVAL) + buf->b_p_inde = vim_strsave(p_inde); + COPY_OPT_SCTX(buf, BV_INDE); + buf->b_p_indk = vim_strsave(p_indk); + COPY_OPT_SCTX(buf, BV_INDK); +#endif + buf->b_p_fp = empty_option; +#if defined(FEAT_EVAL) + buf->b_p_fex = vim_strsave(p_fex); + COPY_OPT_SCTX(buf, BV_FEX); +#endif +#ifdef FEAT_CRYPT + buf->b_p_key = vim_strsave(p_key); + COPY_OPT_SCTX(buf, BV_KEY); +#endif + buf->b_p_sua = vim_strsave(p_sua); + COPY_OPT_SCTX(buf, BV_SUA); +#ifdef FEAT_KEYMAP + buf->b_p_keymap = vim_strsave(p_keymap); + COPY_OPT_SCTX(buf, BV_KMAP); + buf->b_kmap_state |= KEYMAP_INIT; +#endif +#ifdef FEAT_TERMINAL + buf->b_p_twsl = p_twsl; + COPY_OPT_SCTX(buf, BV_TWSL); +#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; + COPY_OPT_SCTX(buf, BV_IMI); + buf->b_p_imsearch = p_imsearch; + COPY_OPT_SCTX(buf, BV_IMS); + + // 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); + COPY_OPT_SCTX(buf, BV_INEX); +# endif +#endif + buf->b_p_dict = empty_option; + buf->b_p_tsr = empty_option; +#ifdef FEAT_COMPL_FUNC + buf->b_p_tsrfu = empty_option; +#endif + buf->b_p_qe = vim_strsave(p_qe); + COPY_OPT_SCTX(buf, BV_QE); +#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; + COPY_OPT_SCTX(buf, BV_UDF); +#endif + buf->b_p_lw = empty_option; + buf->b_p_menc = empty_option; + + // 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; +#ifdef FEAT_VARTABS + if (p_vts && p_vts != empty_option && !buf->b_p_vts_array) + (void)tabstop_set(p_vts, &buf->b_p_vts_array); + else + buf->b_p_vts_array = NULL; +#endif + } + else + { + buf->b_p_isk = vim_strsave(p_isk); + COPY_OPT_SCTX(buf, BV_ISK); + did_isk = TRUE; + buf->b_p_ts = p_ts; + COPY_OPT_SCTX(buf, BV_TS); +#ifdef FEAT_VARTABS + buf->b_p_vts = vim_strsave(p_vts); + COPY_OPT_SCTX(buf, BV_VTS); + if (p_vts && p_vts != empty_option && !buf->b_p_vts_array) + (void)tabstop_set(p_vts, &buf->b_p_vts_array); + else + buf->b_p_vts_array = NULL; +#endif + buf->b_help = FALSE; + if (buf->b_p_bt[0] == 'h') + clear_string_option(&buf->b_p_bt); + buf->b_p_ma = p_ma; + COPY_OPT_SCTX(buf, BV_MA); + } + } + + // When the options should be copied (ignoring BCO_ALWAYS), set the + // flag that indicates that the options have been initialized. + if (should_copy) + buf->b_p_initialized = TRUE; + } + + check_buf_options(buf); // make sure we don't have NULLs + if (did_isk) + (void)buf_init_chartab(buf, FALSE); +} + +/* + * Reset the 'modifiable' option and its default value. + */ + void +reset_modifiable(void) +{ + int opt_idx; + + curbuf->b_p_ma = FALSE; + p_ma = FALSE; + opt_idx = findoption((char_u *)"ma"); + if (opt_idx >= 0) + options[opt_idx].def_val[VI_DEFAULT] = FALSE; +} + +/* + * Set the global value for 'iminsert' to the local value. + */ + void +set_iminsert_global(void) +{ + p_iminsert = curbuf->b_p_iminsert; +} + +/* + * Set the global value for 'imsearch' to the local value. + */ + void +set_imsearch_global(void) +{ + p_imsearch = curbuf->b_p_imsearch; +} + +static int expand_option_idx = -1; +static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL}; +static int expand_option_flags = 0; + + void +set_context_in_set_cmd( + 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 + || p == (char_u *)&p_cdpath +#ifdef FEAT_SESSION + || p == (char_u *)&p_vdir +#endif + ) + { + xp->xp_context = EXPAND_DIRECTORIES; + if (p == (char_u *)&p_path || p == (char_u *)&p_cdpath) + xp->xp_backslash = XP_BS_THREE; + else + xp->xp_backslash = XP_BS_ONE; + } + else if (p == (char_u *)&p_ft) + { + xp->xp_context = EXPAND_FILETYPE; + } + 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 + } +} + +/* + * Returns TRUE if 'str' either matches 'regmatch' or fuzzy matches 'pat'. + * + * If 'test_only' is TRUE and 'fuzzy' is FALSE and if 'str' matches the regular + * expression 'regmatch', then returns TRUE. Otherwise returns FALSE. + * + * If 'test_only' is FALSE and 'fuzzy' is FALSE and if 'str' matches the + * regular expression 'regmatch', then stores the match in matches[idx] and + * returns TRUE. + * + * If 'test_only' is TRUE and 'fuzzy' is TRUE and if 'str' fuzzy matches + * 'fuzzystr', then returns TRUE. Otherwise returns FALSE. + * + * If 'test_only' is FALSE and 'fuzzy' is TRUE and if 'str' fuzzy matches + * 'fuzzystr', then stores the match details in fuzmatch[idx] and returns TRUE. + */ + static int +match_str( + char_u *str, + regmatch_T *regmatch, + char_u **matches, + int idx, + int test_only, + int fuzzy, + char_u *fuzzystr, + fuzmatch_str_T *fuzmatch) +{ + if (!fuzzy) + { + if (vim_regexec(regmatch, str, (colnr_T)0)) + { + if (!test_only) + matches[idx] = vim_strsave(str); + return TRUE; + } + } + else + { + int score; + + score = fuzzy_match_str(str, fuzzystr); + if (score != 0) + { + if (!test_only) + { + fuzmatch[idx].idx = idx; + fuzmatch[idx].str = vim_strsave(str); + fuzmatch[idx].score = score; + } + + return TRUE; + } + } + + return FALSE; +} + + int +ExpandSettings( + expand_T *xp, + regmatch_T *regmatch, + char_u *fuzzystr, + int *numMatches, + char_u ***matches, + int can_fuzzy) +{ + 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 + int fuzzy; + fuzmatch_str_T *fuzmatch = NULL; + + fuzzy = can_fuzzy && cmdline_fuzzy_complete(fuzzystr); + + // 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)ARRAY_LENGTH(names); ++match) + { + if (match_str((char_u *)names[match], regmatch, *matches, + count, (loop == 0), fuzzy, fuzzystr, fuzmatch)) + { + if (loop == 0) + num_normal++; + else + count++; + } + } + } + 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_idx(opt_idx); + if (is_term_opt && num_normal > 0) + continue; + + if (match_str(str, regmatch, *matches, count, (loop == 0), + fuzzy, fuzzystr, fuzmatch)) + { + if (loop == 0) + { + if (is_term_opt) + num_term++; + else + num_normal++; + } + else + count++; + } + else if (!fuzzy && options[opt_idx].shortname != NULL + && vim_regexec(regmatch, + (char_u *)options[opt_idx].shortname, (colnr_T)0)) + { + // Compare against the abbreviated option name (for regular + // expression match). Fuzzy matching (previous if) already + // matches against both the expanded and abbreviated names. + if (loop == 0) + { + if (is_term_opt) + num_term++; + else + num_normal++; + } + else + (*matches)[count++] = vim_strsave(str); + } + 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 (match_str(name_buf, regmatch, *matches, count, (loop == 0), + fuzzy, fuzzystr, fuzmatch)) + { + if (loop == 0) + num_term++; + else + count++; + } + } + } + + // 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; + + if (match_str(name_buf, regmatch, *matches, count, + (loop == 0), fuzzy, fuzzystr, fuzmatch)) + { + if (loop == 0) + num_term++; + else + count++; + } + 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 (match_str(name_buf, regmatch, *matches, count, + (loop == 0), fuzzy, fuzzystr, + fuzmatch)) + { + if (loop == 0) + num_term++; + else + count++; + } + } + } + + // 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 (match_str(name_buf, regmatch, *matches, count, (loop == 0), + fuzzy, fuzzystr, fuzmatch)) + { + if (loop == 0) + num_term++; + else + count++; + } + } + } + if (loop == 0) + { + if (num_normal > 0) + *numMatches = num_normal; + else if (num_term > 0) + *numMatches = num_term; + else + return OK; + if (!fuzzy) + { + *matches = ALLOC_MULT(char_u *, *numMatches); + if (*matches == NULL) + { + *matches = (char_u **)""; + return FAIL; + } + } + else + { + fuzmatch = ALLOC_MULT(fuzmatch_str_T, *numMatches); + if (fuzmatch == NULL) + { + *matches = (char_u **)""; + return FAIL; + } + } + } + } + + if (fuzzy && + fuzzymatches_to_strmatches(fuzmatch, matches, count, FALSE) == FAIL) + return FAIL; + + return OK; +} + + int +ExpandOldSetting(int *numMatches, char_u ***matches) +{ + char_u *var = NULL; // init for GCC + char_u *buf; + + *numMatches = 0; + *matches = ALLOC_ONE(char_u *); + if (*matches == 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_CLEAR(*matches); + 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 + + *matches[0] = buf; + *numMatches = 1; + return OK; +} + +/* + * Get the value for the numeric or string option *opp in a nice format into + * NameBuff[]. Must not be called with a hidden option! + */ + static void +option_value2string( + struct vimoption *opp, + int scope) // OPT_GLOBAL and/or OPT_LOCAL +{ + char_u *varp; + + varp = get_varp_scope(opp, scope); + + 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); + } +} + +/* + * Return TRUE if "varp" points to 'wildchar' or 'wildcharm' and it can be + * printed as a keyname. + * "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'. + */ + static int +wc_use_keyname(char_u *varp, long *wcp) +{ + if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm)) + { + *wcp = *(long *)varp; + if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)*wcp) >= 0) + return TRUE; + } + return FALSE; +} + +/* + * Return TRUE if "x" is present in 'shortmess' option, or + * 'shortmess' contains 'a' and "x" is present in SHM_A. + */ + int +shortmess(int x) +{ + return p_shm != NULL && + ( vim_strchr(p_shm, x) != NULL + || (vim_strchr(p_shm, 'a') != NULL + && vim_strchr((char_u *)SHM_A, x) != NULL)); +} + +/* + * paste_option_changed() - Called after p_paste was set or reset. + */ + static void +paste_option_changed(void) +{ + static int old_p_paste = FALSE; + static int save_sm = 0; + static int save_sta = 0; + static int save_ru = 0; +#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; +#ifdef FEAT_VARTABS + if (buf->b_p_vsts_nopaste) + vim_free(buf->b_p_vsts_nopaste); + buf->b_p_vsts_nopaste = + buf->b_p_vsts && buf->b_p_vsts != empty_option + ? vim_strsave(buf->b_p_vsts) : NULL; +#endif + } + + // save global options + save_sm = p_sm; + save_sta = p_sta; + save_ru = p_ru; +#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; +#ifdef FEAT_VARTABS + if (p_vsts_nopaste) + vim_free(p_vsts_nopaste); + p_vsts_nopaste = p_vsts && p_vsts != empty_option + ? vim_strsave(p_vsts) : NULL; +#endif + } + + // 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 +#ifdef FEAT_VARTABS + if (buf->b_p_vsts) + free_string_option(buf->b_p_vsts); + buf->b_p_vsts = empty_option; + VIM_CLEAR(buf->b_p_vsts_array); +#endif + } + + // set global options + p_sm = 0; // no showmatch + p_sta = 0; // no smarttab + if (p_ru) + status_redraw_all(); // redraw to remove the ruler + p_ru = 0; // no ruler +#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; +#ifdef FEAT_VARTABS + if (p_vsts) + free_string_option(p_vsts); + p_vsts = empty_option; +#endif + } + + // 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; +#ifdef FEAT_VARTABS + if (buf->b_p_vsts) + free_string_option(buf->b_p_vsts); + buf->b_p_vsts = buf->b_p_vsts_nopaste + ? vim_strsave(buf->b_p_vsts_nopaste) : empty_option; + vim_free(buf->b_p_vsts_array); + if (buf->b_p_vsts && buf->b_p_vsts != empty_option) + (void)tabstop_set(buf->b_p_vsts, &buf->b_p_vsts_array); + else + buf->b_p_vsts_array = NULL; +#endif + } + + // restore global options + p_sm = save_sm; + p_sta = save_sta; + if (p_ru != save_ru) + status_redraw_all(); // redraw to draw the ruler + p_ru = save_ru; +#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; +#ifdef FEAT_VARTABS + if (p_vsts) + free_string_option(p_vsts); + p_vsts = p_vsts_nopaste ? vim_strsave(p_vsts_nopaste) : empty_option; +#endif + } + + old_p_paste = p_paste; +} + +/* + * vimrc_found() - Called when a ".vimrc" or "VIMINIT" has been found. + * + * Reset 'compatible' and set the values for options that didn't get set yet + * to the Vim defaults. + * Don't do this if the 'compatible' option has been set or reset before. + * When "fname" is not NULL, use it to set $"envname" when it wasn't set yet. + */ + void +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_idx(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); + } +} + +/* + * Set 'compatible' on or off. Called for "-C" and "-N" command line arg. + */ + void +change_compatible(int on) +{ + int opt_idx; + + if (p_cp != on) + { + p_cp = on; + compatible_set(); + } + opt_idx = findoption((char_u *)"cp"); + if (opt_idx >= 0) + options[opt_idx].flags |= P_WAS_SET; +} + +/* + * Return TRUE when option "name" has been set. + * Only works correctly for global options. + */ + int +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; +} + +/* + * Reset the flag indicating option "name" was set. + */ + int +reset_option_was_set(char_u *name) +{ + int idx = findoption(name); + + if (idx < 0) + return FAIL; + + options[idx].flags &= ~P_WAS_SET; + return OK; +} + +/* + * compatible_set() - Called when 'compatible' has been set or unset. + * + * When 'compatible' set: Set all relevant options (those that have the P_VIM) + * flag) to a Vi compatible value. + * When 'compatible' is unset: Set all options that have a different default + * for Vim (without the P_VI_DEF flag) to that default. + */ + static void +compatible_set(void) +{ + int opt_idx; + + for (opt_idx = 0; !istermoption_idx(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(); +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) + +/* + * Called when the 'breakat' option changes value. + */ + char * +did_set_breakat(optset_T *args UNUSED) +{ + char_u *p; + int i; + + for (i = 0; i < 256; i++) + breakat_flags[i] = FALSE; + + if (p_breakat != NULL) + for (p = p_breakat; *p; p++) + breakat_flags[*p] = TRUE; + + return NULL; +} +#endif + +/* + * Check if backspacing over something is allowed. + */ + int +can_bs( + int what) // BS_INDENT, BS_EOL, BS_START or BS_NOSTOP +{ +#ifdef FEAT_JOB_CHANNEL + if (what == BS_START && bt_prompt(curbuf)) + return FALSE; +#endif + switch (*p_bs) + { + case '3': return TRUE; + case '2': return (what != BS_NOSTOP); + case '1': return (what != BS_START); + case '0': return FALSE; + } + return vim_strchr(p_bs, what) != NULL; +} + +/* + * Return the effective 'scrolloff' value for the current window, using the + * global value when appropriate. + */ + long +get_scrolloff_value(void) +{ + return curwin->w_p_so < 0 ? p_so : curwin->w_p_so; +} + +/* + * Return the effective 'sidescrolloff' value for the current window, using the + * global value when appropriate. + */ + long +get_sidescrolloff_value(void) +{ + return curwin->w_p_siso < 0 ? p_siso : curwin->w_p_siso; +} + +/* + * Get the local or global value of 'backupcopy'. + */ + unsigned int +get_bkc_value(buf_T *buf) +{ + return buf->b_bkc_flags ? buf->b_bkc_flags : bkc_flags; +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) +/* + * Get the local or global value of 'formatlistpat'. + */ + char_u * +get_flp_value(buf_T *buf) +{ + if (buf->b_p_flp == NULL || *buf->b_p_flp == NUL) + return p_flp; + return buf->b_p_flp; +} +#endif + +/* + * Get the local or global value of the 'virtualedit' flags. + */ + unsigned int +get_ve_flags(void) +{ + return (curwin->w_ve_flags ? curwin->w_ve_flags : ve_flags) + & ~(VE_NONE | VE_NONEU); +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) +/* + * Get the local or global value of 'showbreak'. + */ + char_u * +get_showbreak_value(win_T *win) +{ + if (win->w_p_sbr == NULL || *win->w_p_sbr == NUL) + return p_sbr; + if (STRCMP(win->w_p_sbr, "NONE") == 0) + return empty_option; + return win->w_p_sbr; +} +#endif + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * Get window or buffer local options. + */ + dict_T * +get_winbuf_options(int bufopt) +{ + dict_T *d; + int opt_idx; + + d = dict_alloc(); + if (d == NULL) + return NULL; + + for (opt_idx = 0; !istermoption_idx(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_string(d, opt->fullname, *(char_u **)varp); + else if (opt->flags & P_NUM) + dict_add_number(d, opt->fullname, *(long *)varp); + else + dict_add_number(d, opt->fullname, *(int *)varp); + } + } + } + + return d; +} +#endif + +#if defined(FEAT_SYN_HL) || defined(PROTO) +/* + * This is called when 'culopt' is changed + */ + int +fill_culopt_flags(char_u *val, win_T *wp) +{ + char_u *p; + char_u culopt_flags_new = 0; + + if (val == NULL) + p = wp->w_p_culopt; + else + p = val; + while (*p != NUL) + { + if (STRNCMP(p, "line", 4) == 0) + { + p += 4; + culopt_flags_new |= CULOPT_LINE; + } + else if (STRNCMP(p, "both", 4) == 0) + { + p += 4; + culopt_flags_new |= CULOPT_LINE | CULOPT_NBR; + } + else if (STRNCMP(p, "number", 6) == 0) + { + p += 6; + culopt_flags_new |= CULOPT_NBR; + } + else if (STRNCMP(p, "screenline", 10) == 0) + { + p += 10; + culopt_flags_new |= CULOPT_SCRLINE; + } + + if (*p != ',' && *p != NUL) + return FAIL; + if (*p == ',') + ++p; + } + + // Can't have both "line" and "screenline". + if ((culopt_flags_new & CULOPT_LINE) && (culopt_flags_new & CULOPT_SCRLINE)) + return FAIL; + wp->w_p_culopt_flags = culopt_flags_new; + + return OK; +} +#endif + +/* + * Get the value of 'magic' adjusted for Vim9 script. + */ + int +magic_isset(void) +{ + switch (magic_overruled) + { + case OPTION_MAGIC_ON: return TRUE; + case OPTION_MAGIC_OFF: return FALSE; + case OPTION_MAGIC_NOT_SET: break; + } +#ifdef FEAT_EVAL + if (in_vim9script()) + return TRUE; +#endif + return p_magic; +} + +/* + * Set the callback function value for an option that accepts a function name, + * lambda, et al. (e.g. 'operatorfunc', 'tagfunc', etc.) + * Returns OK if the option is successfully set to a function, otherwise + * returns FAIL. + */ + int +option_set_callback_func(char_u *optval UNUSED, callback_T *optcb UNUSED) +{ +#ifdef FEAT_EVAL + typval_T *tv; + callback_T cb; + + if (optval == NULL || *optval == NUL) + { + free_callback(optcb); + return OK; + } + + if (*optval == '{' || (in_vim9script() && *optval == '(') + || (STRNCMP(optval, "function(", 9) == 0) + || (STRNCMP(optval, "funcref(", 8) == 0)) + // Lambda expression or a funcref + tv = eval_expr(optval, NULL); + else + // treat everything else as a function name string + tv = alloc_string_tv(vim_strsave(optval)); + if (tv == NULL) + return FAIL; + + cb = get_callback(tv); + if (cb.cb_name == NULL || *cb.cb_name == NUL) + { + free_tv(tv); + return FAIL; + } + + free_callback(optcb); + set_callback(optcb, &cb); + if (cb.cb_free_name) + vim_free(cb.cb_name); + free_tv(tv); + + // when using Vim9 style "import.funcname" it needs to be expanded to + // "import#funcname". + expand_autload_callback(optcb); + + return OK; +#else + return FAIL; +#endif +} |