// This is an open source non-commercial project. Dear PVS-Studio, please check // it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com #include #include #include #include #include "nvim/api/private/helpers.h" #include "nvim/ascii.h" #include "nvim/autocmd.h" #include "nvim/buffer_defs.h" #include "nvim/charset.h" #include "nvim/cursor.h" #include "nvim/cursor_shape.h" #include "nvim/diff.h" #include "nvim/digraph.h" #include "nvim/drawscreen.h" #include "nvim/eval.h" #include "nvim/eval/typval_defs.h" #include "nvim/eval/userfunc.h" #include "nvim/eval/vars.h" #include "nvim/ex_getln.h" #include "nvim/fold.h" #include "nvim/gettext.h" #include "nvim/globals.h" #include "nvim/highlight_group.h" #include "nvim/indent.h" #include "nvim/indent_c.h" #include "nvim/insexpand.h" #include "nvim/keycodes.h" #include "nvim/macros.h" #include "nvim/mapping.h" #include "nvim/mbyte.h" #include "nvim/memline.h" #include "nvim/memory.h" #include "nvim/message.h" #include "nvim/mouse.h" #include "nvim/move.h" #include "nvim/ops.h" #include "nvim/option.h" #include "nvim/option_defs.h" #include "nvim/optionstr.h" #include "nvim/os/os.h" #include "nvim/pos.h" #include "nvim/quickfix.h" #include "nvim/runtime.h" #include "nvim/spell.h" #include "nvim/spellfile.h" #include "nvim/spellsuggest.h" #include "nvim/statusline.h" #include "nvim/strings.h" #include "nvim/tag.h" #include "nvim/ui.h" #include "nvim/vim.h" #include "nvim/window.h" #ifdef INCLUDE_GENERATED_DECLARATIONS # include "optionstr.c.generated.h" #endif static const char e_unclosed_expression_sequence[] = N_("E540: Unclosed expression sequence"); static const char e_comma_required[] = N_("E536: Comma required"); static const char e_unbalanced_groups[] = N_("E542: Unbalanced groups"); static const char e_backupext_and_patchmode_are_equal[] = N_("E589: 'backupext' and 'patchmode' are equal"); static const char e_showbreak_contains_unprintable_or_wide_character[] = N_("E595: 'showbreak' contains unprintable or wide character"); static const char e_internal_error_shortmess_too_long[] = N_("E1336: Internal error: shortmess too long"); static char *(p_ambw_values[]) = { "single", "double", NULL }; static char *(p_bg_values[]) = { "light", "dark", NULL }; static char *(p_bkc_values[]) = { "yes", "auto", "no", "breaksymlink", "breakhardlink", NULL }; static char *(p_bo_values[]) = { "all", "backspace", "cursor", "complete", "copy", "ctrlg", "error", "esc", "ex", "hangul", "lang", "mess", "showmatch", "operator", "register", "shell", "spell", "wildmode", NULL }; static char *(p_nf_values[]) = { "bin", "octal", "hex", "alpha", "unsigned", NULL }; static char *(p_ff_values[]) = { FF_UNIX, FF_DOS, FF_MAC, NULL }; static char *(p_cmp_values[]) = { "internal", "keepascii", NULL }; static char *(p_dy_values[]) = { "lastline", "truncate", "uhex", "msgsep", NULL }; static char *(p_fdo_values[]) = { "all", "block", "hor", "mark", "percent", "quickfix", "search", "tag", "insert", "undo", "jump", NULL }; /// Also used for 'viewoptions'! Keep in sync with SSOP_ flags. static char *(p_ssop_values[]) = { "buffers", "winpos", "resize", "winsize", "localoptions", "options", "help", "blank", "globals", "slash", "unix", "sesdir", "curdir", "folds", "cursor", "tabpages", "terminal", "skiprtp", NULL }; // Keep in sync with SWB_ flags in option_defs.h static char *(p_swb_values[]) = { "useopen", "usetab", "split", "newtab", "vsplit", "uselast", NULL }; static char *(p_spk_values[]) = { "cursor", "screen", "topline", NULL }; static char *(p_tc_values[]) = { "followic", "ignore", "match", "followscs", "smart", NULL }; static char *(p_ve_values[]) = { "block", "insert", "all", "onemore", "none", "NONE", NULL }; static char *(p_wop_values[]) = { "tagfile", "pum", "fuzzy", NULL }; static char *(p_wak_values[]) = { "yes", "menu", "no", NULL }; static char *(p_mousem_values[]) = { "extend", "popup", "popup_setpos", "mac", NULL }; static char *(p_sel_values[]) = { "inclusive", "exclusive", "old", NULL }; static char *(p_slm_values[]) = { "mouse", "key", "cmd", NULL }; static char *(p_km_values[]) = { "startsel", "stopsel", NULL }; static char *(p_scbopt_values[]) = { "ver", "hor", "jump", NULL }; static char *(p_debug_values[]) = { "msg", "throw", "beep", NULL }; static char *(p_ead_values[]) = { "both", "ver", "hor", NULL }; static char *(p_buftype_values[]) = { "nofile", "nowrite", "quickfix", "help", "acwrite", "terminal", "prompt", NULL }; static char *(p_bufhidden_values[]) = { "hide", "unload", "delete", "wipe", NULL }; static char *(p_bs_values[]) = { "indent", "eol", "start", "nostop", NULL }; static char *(p_fdm_values[]) = { "manual", "expr", "marker", "indent", "syntax", "diff", NULL }; static char *(p_fcl_values[]) = { "all", NULL }; static char *(p_cot_values[]) = { "menu", "menuone", "longest", "preview", "noinsert", "noselect", NULL }; #ifdef BACKSLASH_IN_FILENAME static char *(p_csl_values[]) = { "slash", "backslash", NULL }; #endif static char *(p_scl_values[]) = { "yes", "no", "auto", "auto:1", "auto:2", "auto:3", "auto:4", "auto:5", "auto:6", "auto:7", "auto:8", "auto:9", "yes:1", "yes:2", "yes:3", "yes:4", "yes:5", "yes:6", "yes:7", "yes:8", "yes:9", "number", NULL }; static char *(p_fdc_values[]) = { "auto", "auto:1", "auto:2", "auto:3", "auto:4", "auto:5", "auto:6", "auto:7", "auto:8", "auto:9", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL }; static char *(p_cb_values[]) = { "unnamed", "unnamedplus", NULL }; static char *(p_spo_values[]) = { "camel", "noplainbuffer", NULL }; static char *(p_icm_values[]) = { "nosplit", "split", NULL }; static char *(p_jop_values[]) = { "stack", "view", NULL }; static char *(p_tpf_values[]) = { "BS", "HT", "FF", "ESC", "DEL", "C0", "C1", NULL }; static char *(p_rdb_values[]) = { "compositor", "nothrottle", "invalid", "nodelta", "line", "flush", NULL }; static char *(p_sloc_values[]) = { "last", "statusline", "tabline", NULL }; /// All possible flags for 'shm'. static char SHM_ALL[] = { SHM_RO, SHM_MOD, SHM_FILE, SHM_LAST, SHM_TEXT, SHM_LINES, SHM_NEW, SHM_WRI, SHM_ABBREVIATIONS, SHM_WRITE, SHM_TRUNC, SHM_TRUNCALL, SHM_OVER, SHM_OVERALL, SHM_SEARCH, SHM_ATTENTION, SHM_INTRO, SHM_COMPLETIONMENU, SHM_COMPLETIONSCAN, SHM_RECORDING, SHM_FILEINFO, SHM_SEARCHCOUNT, 0, }; /// After setting various option values: recompute variables that depend on /// option values. void didset_string_options(void) { (void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, true); (void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, true); (void)opt_strings_flags(p_bo, p_bo_values, &bo_flags, true); (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, true); (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, true); (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, true); (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, true); (void)opt_strings_flags(p_rdb, p_rdb_values, &rdb_flags, true); (void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, false); (void)opt_strings_flags(p_tpf, p_tpf_values, &tpf_flags, true); (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, true); (void)opt_strings_flags(p_swb, p_swb_values, &swb_flags, true); (void)opt_strings_flags(p_wop, p_wop_values, &wop_flags, true); (void)opt_strings_flags(p_jop, p_jop_values, &jop_flags, true); (void)opt_strings_flags(p_cb, p_cb_values, &cb_flags, true); } /// Trigger the OptionSet autocommand. /// "opt_idx" is the index of the option being set. /// "opt_flags" can be OPT_LOCAL etc. /// "oldval" the old value /// "oldval_l" the old local value (only non-NULL if global and local value are set) /// "oldval_g" the old global value (only non-NULL if global and local value are set) /// "newval" the new value void trigger_optionset_string(int opt_idx, int opt_flags, char *oldval, char *oldval_l, char *oldval_g, char *newval) { // Don't do this recursively. if (oldval == NULL || newval == NULL || *get_vim_var_str(VV_OPTION_TYPE) != NUL) { return; } char buf_type[7]; vim_snprintf(buf_type, ARRAY_SIZE(buf_type), "%s", (opt_flags & OPT_LOCAL) ? "local" : "global"); set_vim_var_string(VV_OPTION_OLD, oldval, -1); set_vim_var_string(VV_OPTION_NEW, newval, -1); set_vim_var_string(VV_OPTION_TYPE, buf_type, -1); if (opt_flags & OPT_LOCAL) { set_vim_var_string(VV_OPTION_COMMAND, "setlocal", -1); set_vim_var_string(VV_OPTION_OLDLOCAL, oldval, -1); } if (opt_flags & OPT_GLOBAL) { set_vim_var_string(VV_OPTION_COMMAND, "setglobal", -1); set_vim_var_string(VV_OPTION_OLDGLOBAL, oldval, -1); } if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) { set_vim_var_string(VV_OPTION_COMMAND, "set", -1); set_vim_var_string(VV_OPTION_OLDLOCAL, oldval_l, -1); set_vim_var_string(VV_OPTION_OLDGLOBAL, oldval_g, -1); } if (opt_flags & OPT_MODELINE) { set_vim_var_string(VV_OPTION_COMMAND, "modeline", -1); set_vim_var_string(VV_OPTION_OLDLOCAL, oldval, -1); } apply_autocmds(EVENT_OPTIONSET, get_option(opt_idx)->fullname, NULL, false, NULL); reset_v_option_vars(); } static char *illegal_char(char *errbuf, size_t errbuflen, int c) { if (errbuf == NULL) { return ""; } vim_snprintf(errbuf, errbuflen, _("E539: Illegal character <%s>"), transchar(c)); return errbuf; } /// Check string options in a buffer for NULL value. void check_buf_options(buf_T *buf) { check_string_option(&buf->b_p_bh); check_string_option(&buf->b_p_bt); check_string_option(&buf->b_p_fenc); check_string_option(&buf->b_p_ff); check_string_option(&buf->b_p_def); check_string_option(&buf->b_p_inc); check_string_option(&buf->b_p_inex); check_string_option(&buf->b_p_inde); check_string_option(&buf->b_p_indk); check_string_option(&buf->b_p_fp); check_string_option(&buf->b_p_fex); check_string_option(&buf->b_p_kp); check_string_option(&buf->b_p_mps); check_string_option(&buf->b_p_fo); check_string_option(&buf->b_p_flp); check_string_option(&buf->b_p_isk); check_string_option(&buf->b_p_com); check_string_option(&buf->b_p_cms); check_string_option(&buf->b_p_nf); check_string_option(&buf->b_p_qe); check_string_option(&buf->b_p_syn); check_string_option(&buf->b_s.b_syn_isk); check_string_option(&buf->b_s.b_p_spc); check_string_option(&buf->b_s.b_p_spf); check_string_option(&buf->b_s.b_p_spl); check_string_option(&buf->b_s.b_p_spo); check_string_option(&buf->b_p_sua); check_string_option(&buf->b_p_cink); check_string_option(&buf->b_p_cino); parse_cino(buf); check_string_option(&buf->b_p_lop); check_string_option(&buf->b_p_ft); check_string_option(&buf->b_p_cinw); check_string_option(&buf->b_p_cinsd); check_string_option(&buf->b_p_cpt); check_string_option(&buf->b_p_cfu); check_string_option(&buf->b_p_ofu); check_string_option(&buf->b_p_keymap); check_string_option(&buf->b_p_gp); check_string_option(&buf->b_p_mp); check_string_option(&buf->b_p_efm); check_string_option(&buf->b_p_ep); check_string_option(&buf->b_p_path); check_string_option(&buf->b_p_tags); check_string_option(&buf->b_p_tfu); check_string_option(&buf->b_p_tc); check_string_option(&buf->b_p_dict); check_string_option(&buf->b_p_tsr); check_string_option(&buf->b_p_tsrfu); check_string_option(&buf->b_p_lw); check_string_option(&buf->b_p_bkc); check_string_option(&buf->b_p_menc); check_string_option(&buf->b_p_vsts); check_string_option(&buf->b_p_vts); } /// Free the string allocated for an option. /// Checks for the string being empty_option. This may happen if we're out of /// memory, xstrdup() returned NULL, which was replaced by empty_option by /// check_options(). /// Does NOT check for P_ALLOCED flag! void free_string_option(char *p) { if (p != empty_option) { xfree(p); } } void clear_string_option(char **pp) { if (*pp != empty_option) { xfree(*pp); } *pp = empty_option; } void check_string_option(char **pp) { if (*pp == NULL) { *pp = empty_option; } } /// Set global value for string option when it's a local option. /// /// @param opt option /// @param varp pointer to option variable static void set_string_option_global(vimoption_T *opt, char **varp) { char **p; // the global value is always allocated if (opt->var == VAR_WIN) { p = (char **)GLOBAL_WO(varp); } else { p = (char **)opt->var; } if (opt->indir != PV_NONE && p != varp) { char *s = xstrdup(*varp); free_string_option(*p); *p = s; } } /// Set a string option to a new value (without checking the effect). /// The string is copied into allocated memory. /// if ("opt_idx" == -1) "name" is used, otherwise "opt_idx" is used. /// When "set_sid" is zero set the scriptID to current_sctx.sc_sid. When /// "set_sid" is SID_NONE don't set the scriptID. Otherwise set the scriptID to /// "set_sid". /// /// @param opt_flags OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL void set_string_option_direct(const char *name, int opt_idx, const char *val, int opt_flags, int set_sid) { char *s; int both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0; int idx = opt_idx; if (idx == -1) { // Use name. idx = findoption(name); if (idx < 0) { // Not found (should not happen). internal_error("set_string_option_direct()"); siemsg(_("For option %s"), name); return; } } vimoption_T *opt = get_option(idx); if (opt->var == NULL) { // can't set hidden option return; } assert(opt->var != &p_shada); s = xstrdup(val); { char **varp = (char **)get_varp_scope(opt, both ? OPT_LOCAL : opt_flags); if ((opt_flags & OPT_FREE) && (opt->flags & P_ALLOCED)) { free_string_option(*varp); } *varp = s; // For buffer/window local option may also set the global value. if (both) { set_string_option_global(opt, varp); } opt->flags |= P_ALLOCED; // When setting both values of a global option with a local value, // make the local value empty, so that the global value is used. if ((opt->indir & PV_BOTH) && both) { free_string_option(*varp); *varp = empty_option; } if (set_sid != SID_NONE) { sctx_T script_ctx; if (set_sid == 0) { script_ctx = current_sctx; } else { script_ctx.sc_sid = set_sid; script_ctx.sc_seq = 0; script_ctx.sc_lnum = 0; } set_option_sctx_idx(idx, opt_flags, script_ctx); } } } /// Like set_string_option_direct(), but for a window-local option in "wp". /// Blocks autocommands to avoid the old curwin becoming invalid. void set_string_option_direct_in_win(win_T *wp, const char *name, int opt_idx, const char *val, int opt_flags, int set_sid) { win_T *save_curwin = curwin; block_autocmds(); curwin = wp; curbuf = curwin->w_buffer; set_string_option_direct(name, opt_idx, val, opt_flags, set_sid); curwin = save_curwin; curbuf = curwin->w_buffer; unblock_autocmds(); } /// Like set_string_option_direct(), but for a buffer-local option in "buf". /// Blocks autocommands to avoid the old curwin becoming invalid. void set_string_option_direct_in_buf(buf_T *buf, const char *name, int opt_idx, const char *val, int opt_flags, int set_sid) { buf_T *save_curbuf = curbuf; block_autocmds(); curbuf = buf; set_string_option_direct(name, opt_idx, val, opt_flags, set_sid); curbuf = save_curbuf; unblock_autocmds(); } /// Set a string option to a new value, handling the effects /// /// @param[in] opt_idx Option to set. /// @param[in] value New value. /// @param[in] opt_flags Option flags: expected to contain #OPT_LOCAL and/or /// #OPT_GLOBAL. /// /// @return NULL on success, an untranslated error message on error. const char *set_string_option(const int opt_idx, const char *const value, const int opt_flags, char *const errbuf, const size_t errbuflen) FUNC_ATTR_NONNULL_ARG(2) FUNC_ATTR_WARN_UNUSED_RESULT { vimoption_T *opt = get_option(opt_idx); if (opt->var == NULL) { // don't set hidden option return NULL; } char *const s = xstrdup(value); char **const varp = (char **)get_varp_scope(opt, ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0 ? ((opt->indir & PV_BOTH) ? OPT_GLOBAL : OPT_LOCAL) : opt_flags)); char *const oldval = *varp; char *oldval_l = NULL; char *oldval_g = NULL; if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) { oldval_l = *(char **)get_varp_scope(opt, OPT_LOCAL); oldval_g = *(char **)get_varp_scope(opt, OPT_GLOBAL); } *varp = s; char *const saved_oldval = xstrdup(oldval); char *const saved_oldval_l = (oldval_l != NULL) ? xstrdup(oldval_l) : 0; char *const saved_oldval_g = (oldval_g != NULL) ? xstrdup(oldval_g) : 0; char *const saved_newval = xstrdup(s); int value_checked = false; const char *const errmsg = did_set_string_option(opt_idx, varp, oldval, s, errbuf, errbuflen, opt_flags, &value_checked); if (errmsg == NULL) { did_set_option(opt_idx, opt_flags, true, value_checked); } // call autocommand after handling side effects if (errmsg == NULL) { if (!starting) { trigger_optionset_string(opt_idx, opt_flags, saved_oldval, saved_oldval_l, saved_oldval_g, saved_newval); } if (opt->flags & P_UI_OPTION) { ui_call_option_set(cstr_as_string(opt->fullname), STRING_OBJ(cstr_as_string(saved_newval))); } } xfree(saved_oldval); xfree(saved_oldval_l); xfree(saved_oldval_g); xfree(saved_newval); return errmsg; } /// Return true if "val" is a valid 'filetype' name. /// Also used for 'syntax' and 'keymap'. static bool valid_filetype(const char *val) FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { return valid_name(val, ".-_"); } /// Handle setting 'mousescroll'. /// @return error message, NULL if it's OK. const char *did_set_mousescroll(optset_T *args FUNC_ATTR_UNUSED) { long vertical = -1; long horizontal = -1; char *string = p_mousescroll; while (true) { char *end = vim_strchr(string, ','); size_t length = end ? (size_t)(end - string) : strlen(string); // Both "ver:" and "hor:" are 4 bytes long. // They should be followed by at least one digit. if (length <= 4) { return e_invarg; } long *direction; if (memcmp(string, "ver:", 4) == 0) { direction = &vertical; } else if (memcmp(string, "hor:", 4) == 0) { direction = &horizontal; } else { return e_invarg; } // If the direction has already been set, this is a duplicate. if (*direction != -1) { return e_invarg; } // Verify that only digits follow the colon. for (size_t i = 4; i < length; i++) { if (!ascii_isdigit(string[i])) { return N_("E5080: Digit expected"); } } string += 4; *direction = getdigits_int(&string, false, -1); // Num options are generally kept within the signed int range. // We know this number won't be negative because we've already checked for // a minus sign. We'll allow 0 as a means of disabling mouse scrolling. if (*direction == -1) { return e_invarg; } if (!end) { break; } string = end + 1; } // If a direction wasn't set, fallback to the default value. p_mousescroll_vert = (vertical == -1) ? MOUSESCROLL_VERT_DFLT : vertical; p_mousescroll_hor = (horizontal == -1) ? MOUSESCROLL_HOR_DFLT : horizontal; return NULL; } /// Handle setting 'signcolumn' for value 'val' /// /// @return OK when the value is valid, FAIL otherwise static int check_signcolumn(char *val) { if (*val == NUL) { return FAIL; } // check for basic match if (check_opt_strings(val, p_scl_values, false) == OK) { return OK; } // check for 'auto:-' if (strlen(val) == 8 && !strncmp(val, "auto:", 5) && ascii_isdigit(val[5]) && val[6] == '-' && ascii_isdigit(val[7])) { int min = val[5] - '0'; int max = val[7] - '0'; if (min < 1 || max < 2 || min > 8 || max > 9 || min >= max) { return FAIL; } return OK; } return FAIL; } /// Check validity of options with the 'statusline' format. /// Return an untranslated error message or NULL. const char *check_stl_option(char *s) { int groupdepth = 0; static char errbuf[80]; while (*s) { // Check for valid keys after % sequences while (*s && *s != '%') { s++; } if (!*s) { break; } s++; if (*s == '%' || *s == STL_TRUNCMARK || *s == STL_SEPARATE) { s++; continue; } if (*s == ')') { s++; if (--groupdepth < 0) { break; } continue; } if (*s == '-') { s++; } while (ascii_isdigit(*s)) { s++; } if (*s == STL_USER_HL) { continue; } if (*s == '.') { s++; while (*s && ascii_isdigit(*s)) { s++; } } if (*s == '(') { groupdepth++; continue; } if (vim_strchr(STL_ALL, (uint8_t)(*s)) == NULL) { return illegal_char(errbuf, sizeof(errbuf), (uint8_t)(*s)); } if (*s == '{') { bool reevaluate = (*++s == '%'); if (reevaluate && *++s == '}') { // "}" is not allowed immediately after "%{%" return illegal_char(errbuf, sizeof(errbuf), '}'); } while ((*s != '}' || (reevaluate && s[-1] != '%')) && *s) { s++; } if (*s != '}') { return e_unclosed_expression_sequence; } } } if (groupdepth != 0) { return e_unbalanced_groups; } return NULL; } /// Check for a "normal" directory or file name in some options. Disallow a /// path separator (slash and/or backslash), wildcards and characters that are /// often illegal in a file name. Be more permissive if "secure" is off. static bool check_illegal_path_names(char *val, uint32_t flags) { return (((flags & P_NFNAME) && strpbrk(val, (secure ? "/\\*?[|;&<>\r\n" : "/\\*?[<>\r\n")) != NULL) || ((flags & P_NDNAME) && strpbrk(val, "*?[|;&<>\r\n") != NULL)); } /// The 'backupcopy' option is changed. const char *did_set_backupcopy(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; const char *oldval = args->os_oldval.string; int opt_flags = args->os_flags; char *bkc = p_bkc; unsigned *flags = &bkc_flags; if (opt_flags & OPT_LOCAL) { bkc = buf->b_p_bkc; flags = &buf->b_bkc_flags; } if ((opt_flags & OPT_LOCAL) && *bkc == NUL) { // make the local value empty: use the global value *flags = 0; } else { if (opt_strings_flags(bkc, p_bkc_values, flags, true) != OK) { return e_invarg; } if (((*flags & BKC_AUTO) != 0) + ((*flags & BKC_YES) != 0) + ((*flags & BKC_NO) != 0) != 1) { // Must have exactly one of "auto", "yes" and "no". (void)opt_strings_flags(oldval, p_bkc_values, flags, true); return e_invarg; } } return NULL; } /// The 'backupext' or the 'patchmode' option is changed. const char *did_set_backupext_or_patchmode(optset_T *args FUNC_ATTR_UNUSED) { if (strcmp(*p_bex == '.' ? p_bex + 1 : p_bex, *p_pm == '.' ? p_pm + 1 : p_pm) == 0) { return e_backupext_and_patchmode_are_equal; } return NULL; } /// The 'belloff' option is changed. const char *did_set_belloff(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_bo, p_bo_values, &bo_flags, true); } /// The 'termpastefilter' option is changed. const char *did_set_termpastefilter(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_tpf, p_tpf_values, &tpf_flags, true); } /// The 'breakindentopt' option is changed. const char *did_set_breakindentopt(optset_T *args) { win_T *win = (win_T *)args->os_win; if (briopt_check(win) == FAIL) { return e_invarg; } // list setting requires a redraw if (win == curwin && win->w_briopt_list) { redraw_all_later(UPD_NOT_VALID); } return NULL; } /// The 'isident' or the 'iskeyword' or the 'isprint' or the 'isfname' option is /// changed. const char *did_set_isopt(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; // 'isident', 'iskeyword', 'isprint or 'isfname' option: refill g_chartab[] // If the new option is invalid, use old value. // 'lisp' option: refill g_chartab[] for '-' char if (buf_init_chartab(buf, true) == FAIL) { args->os_restore_chartab = true; // need to restore it below return e_invarg; // error in value } return NULL; } /// The 'helpfile' option is changed. const char *did_set_helpfile(optset_T *args FUNC_ATTR_UNUSED) { // May compute new values for $VIM and $VIMRUNTIME if (didset_vim) { vim_unsetenv_ext("VIM"); } if (didset_vimruntime) { vim_unsetenv_ext("VIMRUNTIME"); } return NULL; } /// The 'cursorlineopt' option is changed. const char *did_set_cursorlineopt(optset_T *args) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; if (**varp == NUL || fill_culopt_flags(*varp, win) != OK) { return e_invarg; } return NULL; } /// The 'helplang' option is changed. const char *did_set_helplang(optset_T *args FUNC_ATTR_UNUSED) { // Check for "", "ab", "ab,cd", etc. for (char *s = p_hlg; *s != NUL; s += 3) { if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL)) { return e_invarg; } if (s[2] == NUL) { break; } } return NULL; } /// The 'highlight' option is changed. const char *did_set_highlight(optset_T *args) { char **varp = (char **)args->os_varp; if (strcmp(*varp, HIGHLIGHT_INIT) != 0) { return e_unsupportedoption; } return NULL; } static const char *did_set_opt_flags(char *val, char **values, unsigned *flagp, bool list) { if (opt_strings_flags(val, values, flagp, list) != OK) { return e_invarg; } return NULL; } static const char *did_set_opt_strings(char *val, char **values, bool list) { return did_set_opt_flags(val, values, NULL, list); } /// The 'selectmode' option is changed. const char *did_set_selectmode(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_slm, p_slm_values, true); } /// The 'inccommand' option is changed. const char *did_set_inccommand(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_icm, p_icm_values, false); } /// The 'sessionoptions' option is changed. const char *did_set_sessionoptions(optset_T *args) { if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, true) != OK) { return e_invarg; } if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR)) { // Don't allow both "sesdir" and "curdir". const char *oldval = args->os_oldval.string; (void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, true); return e_invarg; } return NULL; } /// The 'ambiwidth' option is changed. const char *did_set_ambiwidth(optset_T *args FUNC_ATTR_UNUSED) { if (check_opt_strings(p_ambw, p_ambw_values, false) != OK) { return e_invarg; } return check_chars_options(); } /// The 'background' option is changed. const char *did_set_background(optset_T *args FUNC_ATTR_UNUSED) { if (check_opt_strings(p_bg, p_bg_values, false) != OK) { return e_invarg; } int dark = (*p_bg == 'd'); init_highlight(false, false); if (dark != (*p_bg == 'd') && get_var_value("g:colors_name") != NULL) { // The color scheme must have set 'background' back to another // value, that's not what we want here. Disable the color // scheme and set the colors again. do_unlet(S_LEN("g:colors_name"), true); free_string_option(p_bg); p_bg = xstrdup((dark ? "dark" : "light")); check_string_option(&p_bg); init_highlight(false, false); } return NULL; } /// The 'whichwrap' option is changed. const char *did_set_whichwrap(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, WW_ALL, args->os_errbuf, args->os_errbuflen); } /// The 'shortmess' option is changed. const char *did_set_shortmess(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, SHM_ALL, args->os_errbuf, args->os_errbuflen); } /// The 'cpoptions' option is changed. const char *did_set_cpoptions(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, CPO_VI, args->os_errbuf, args->os_errbuflen); } /// The 'clipboard' option is changed. const char *did_set_clipboard(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_cb, p_cb_values, &cb_flags, true); } /// The 'foldopen' option is changed. const char *did_set_foldopen(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_fdo, p_fdo_values, &fdo_flags, true); } /// The 'formatoptions' option is changed. const char *did_set_formatoptions(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, FO_ALL, args->os_errbuf, args->os_errbuflen); } /// The 'concealcursor' option is changed. const char *did_set_concealcursor(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, COCU_ALL, args->os_errbuf, args->os_errbuflen); } /// The 'mouse' option is changed. const char *did_set_mouse(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_option_listflag(*varp, MOUSE_ALL, args->os_errbuf, args->os_errbuflen); } /// The 'wildmode' option is changed. const char *did_set_wildmode(optset_T *args FUNC_ATTR_UNUSED) { if (check_opt_wim() == FAIL) { return e_invarg; } return NULL; } /// The 'winaltkeys' option is changed. const char *did_set_winaltkeys(optset_T *args FUNC_ATTR_UNUSED) { if (*p_wak == NUL || check_opt_strings(p_wak, p_wak_values, false) != OK) { return e_invarg; } return NULL; } /// The 'eventignore' option is changed. const char *did_set_eventignore(optset_T *args FUNC_ATTR_UNUSED) { if (check_ei() == FAIL) { return e_invarg; } return NULL; } /// The 'eadirection' option is changed. const char *did_set_eadirection(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_ead, p_ead_values, false); } /// One of the 'encoding', 'fileencoding' or 'makeencoding' /// options is changed. const char *did_set_encoding(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; char **varp = (char **)args->os_varp; int opt_flags = args->os_flags; // Get the global option to compare with, otherwise we would have to check // two values for all local options. char **gvarp = (char **)get_option_varp_scope_from(args->os_idx, OPT_GLOBAL, buf, NULL); if (gvarp == &p_fenc) { if (!MODIFIABLE(buf) && opt_flags != OPT_GLOBAL) { return e_modifiable; } if (vim_strchr(*varp, ',') != NULL) { // No comma allowed in 'fileencoding'; catches confusing it // with 'fileencodings'. return e_invarg; } // May show a "+" in the title now. redraw_titles(); // Add 'fileencoding' to the swap file. ml_setflags(buf); } // canonize the value, so that strcmp() can be used on it char *p = enc_canonize(*varp); xfree(*varp); *varp = p; if (varp == &p_enc) { // only encoding=utf-8 allowed if (strcmp(p_enc, "utf-8") != 0) { return e_unsupportedoption; } spell_reload(); } return NULL; } /// The 'keymap' option has changed. const char *did_set_keymap(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; char **varp = (char **)args->os_varp; int opt_flags = args->os_flags; if (!valid_filetype(*varp)) { return e_invarg; } int secure_save = secure; // Reset the secure flag, since the value of 'keymap' has // been checked to be safe. secure = 0; // load or unload key mapping tables const char *errmsg = keymap_init(); secure = secure_save; // Since we check the value, there is no need to set P_INSECURE, // even when the value comes from a modeline. args->os_value_checked = true; if (errmsg == NULL) { if (*buf->b_p_keymap != NUL) { // Installed a new keymap, switch on using it. buf->b_p_iminsert = B_IMODE_LMAP; if (buf->b_p_imsearch != B_IMODE_USE_INSERT) { buf->b_p_imsearch = B_IMODE_LMAP; } } else { // Cleared the keymap, may reset 'iminsert' and 'imsearch'. if (buf->b_p_iminsert == B_IMODE_LMAP) { buf->b_p_iminsert = B_IMODE_NONE; } if (buf->b_p_imsearch == B_IMODE_LMAP) { buf->b_p_imsearch = B_IMODE_USE_INSERT; } } if ((opt_flags & OPT_LOCAL) == 0) { set_iminsert_global(buf); set_imsearch_global(buf); } status_redraw_buf(buf); } return errmsg; } /// The 'fileformat' option is changed. const char *did_set_fileformat(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; char **varp = (char **)args->os_varp; const char *oldval = args->os_oldval.string; int opt_flags = args->os_flags; if (!MODIFIABLE(buf) && !(opt_flags & OPT_GLOBAL)) { return e_modifiable; } else if (check_opt_strings(*varp, p_ff_values, false) != OK) { return e_invarg; } redraw_titles(); // update flag in swap file ml_setflags(buf); // Redraw needed when switching to/from "mac": a CR in the text // will be displayed differently. if (get_fileformat(buf) == EOL_MAC || *oldval == 'm') { redraw_buf_later(buf, UPD_NOT_VALID); } return NULL; } /// The 'fileformats' option is changed. const char *did_set_fileformats(optset_T *args) { return did_set_opt_strings(p_ffs, p_ff_values, true); } /// The 'matchpairs' option is changed. const char *did_set_matchpairs(optset_T *args) { char **varp = (char **)args->os_varp; for (char *p = *varp; *p != NUL; p++) { int x2 = -1; int x3 = -1; p += utfc_ptr2len(p); if (*p != NUL) { x2 = (unsigned char)(*p++); } if (*p != NUL) { x3 = utf_ptr2char(p); p += utfc_ptr2len(p); } if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ',')) { return e_invarg; } if (*p == NUL) { break; } } return NULL; } /// The 'cinoptions' option is changed. const char *did_set_cinoptions(optset_T *args FUNC_ATTR_UNUSED) { // TODO(vim): recognize errors parse_cino(curbuf); return NULL; } /// The 'colorcolumn' option is changed. const char *did_set_colorcolumn(optset_T *args) { win_T *win = (win_T *)args->os_win; return check_colorcolumn(win); } const char *did_set_comments(optset_T *args) { char **varp = (char **)args->os_varp; char *errmsg = NULL; for (char *s = *varp; *s;) { while (*s && *s != ':') { if (vim_strchr(COM_ALL, (uint8_t)(*s)) == NULL && !ascii_isdigit(*s) && *s != '-') { errmsg = illegal_char(args->os_errbuf, args->os_errbuflen, (uint8_t)(*s)); break; } s++; } if (*s++ == NUL) { errmsg = N_("E524: Missing colon"); } else if (*s == ',' || *s == NUL) { errmsg = N_("E525: Zero length string"); } if (errmsg != NULL) { break; } while (*s && *s != ',') { if (*s == '\\' && s[1] != NUL) { s++; } s++; } s = skip_to_option_part(s); } return errmsg; } /// The global 'listchars' or 'fillchars' option is changed. static const char *did_set_global_listfillchars(win_T *win, char *val, bool opt_lcs, int opt_flags) { const char *errmsg = NULL; char **local_ptr = opt_lcs ? &win->w_p_lcs : &win->w_p_fcs; // only apply the global value to "win" when it does not have a // local value if (opt_lcs) { errmsg = set_listchars_option(win, val, **local_ptr == NUL || !(opt_flags & OPT_GLOBAL)); } else { errmsg = set_fillchars_option(win, val, **local_ptr == NUL || !(opt_flags & OPT_GLOBAL)); } if (errmsg != NULL) { return errmsg; } // If the current window is set to use the global // 'listchars'/'fillchars' value, clear the window-local value. if (!(opt_flags & OPT_GLOBAL)) { clear_string_option(local_ptr); } FOR_ALL_TAB_WINDOWS(tp, wp) { // If the current window has a local value need to apply it // again, it was changed when setting the global value. // If no error was returned above, we don't expect an error // here, so ignore the return value. if (opt_lcs) { if (*wp->w_p_lcs == NUL) { (void)set_listchars_option(wp, wp->w_p_lcs, true); } } else { if (*wp->w_p_fcs == NUL) { (void)set_fillchars_option(wp, wp->w_p_fcs, true); } } } redraw_all_later(UPD_NOT_VALID); return NULL; } /// Handle the new value of 'fillchars'. const char *set_fillchars_option(win_T *wp, char *val, int apply) { return set_chars_option(wp, val, false, apply); } /// Handle the new value of 'listchars'. const char *set_listchars_option(win_T *wp, char *val, int apply) { return set_chars_option(wp, val, true, apply); } /// The 'fillchars' option or the 'listchars' option is changed. const char *did_set_chars_option(optset_T *args) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; const char *errmsg = NULL; if (varp == &p_lcs // global 'listchars' || varp == &p_fcs) { // global 'fillchars' errmsg = did_set_global_listfillchars(win, *varp, varp == &p_lcs, args->os_flags); } else if (varp == &win->w_p_lcs) { // local 'listchars' errmsg = set_listchars_option(win, *varp, true); } else if (varp == &win->w_p_fcs) { // local 'fillchars' errmsg = set_fillchars_option(win, *varp, true); } return errmsg; } /// The 'verbosefile' option is changed. const char *did_set_verbosefile(optset_T *args) { verbose_stop(); if (*p_vfile != NUL && verbose_open() == FAIL) { return (char *)e_invarg; } return NULL; } /// The 'viewoptions' option is changed. const char *did_set_viewoptions(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_vop, p_ssop_values, &vop_flags, true); } static int shada_idx = -1; static const char *did_set_shada(vimoption_T **opt, int *opt_idx, bool *free_oldval, char *errbuf, size_t errbuflen) { // TODO(ZyX-I): Remove this code in the future, alongside with &viminfo // option. *opt_idx = (((*opt)->fullname[0] == 'v') ? (shada_idx == -1 ? ((shada_idx = findoption("shada"))) : shada_idx) : *opt_idx); *opt = get_option(*opt_idx); // Update free_oldval now that we have the opt_idx for 'shada', otherwise // there would be a disconnect between the check for P_ALLOCED at the start // of the function and the set of P_ALLOCED at the end of the function. *free_oldval = ((*opt)->flags & P_ALLOCED); for (char *s = p_shada; *s;) { // Check it's a valid character if (vim_strchr("!\"%'/:<@cfhnrs", (uint8_t)(*s)) == NULL) { return illegal_char(errbuf, errbuflen, (uint8_t)(*s)); } if (*s == 'n') { // name is always last one break; } else if (*s == 'r') { // skip until next ',' while (*++s && *s != ',') {} } else if (*s == '%') { // optional number while (ascii_isdigit(*++s)) {} } else if (*s == '!' || *s == 'h' || *s == 'c') { s++; // no extra chars } else { // must have a number while (ascii_isdigit(*++s)) {} if (!ascii_isdigit(*(s - 1))) { if (errbuf != NULL) { vim_snprintf(errbuf, errbuflen, _("E526: Missing number after <%s>"), transchar_byte((uint8_t)(*(s - 1)))); return errbuf; } else { return ""; } } } if (*s == ',') { s++; } else if (*s) { if (errbuf != NULL) { return N_("E527: Missing comma"); } else { return ""; } } } if (*p_shada && get_shada_parameter('\'') < 0) { return N_("E528: Must specify a ' value"); } return NULL; } /// The 'showbreak' option is changed. const char *did_set_showbreak(optset_T *args) { char **varp = (char **)args->os_varp; for (char *s = *varp; *s;) { if (ptr2cells(s) != 1) { return e_showbreak_contains_unprintable_or_wide_character; } MB_PTR_ADV(s); } return NULL; } /// The 'titlestring' or the 'iconstring' option is changed. static const char *did_set_titleiconstring(optset_T *args, int flagval) { char **varp = (char **)args->os_varp; // NULL => statusline syntax if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL) { stl_syntax |= flagval; } else { stl_syntax &= ~flagval; } did_set_title(); return NULL; } /// The 'titlestring' option is changed. const char *did_set_titlestring(optset_T *args) { return did_set_titleiconstring(args, STL_IN_TITLE); } /// The 'iconstring' option is changed. const char *did_set_iconstring(optset_T *args) { return did_set_titleiconstring(args, STL_IN_ICON); } /// The 'selection' option is changed. const char *did_set_selection(optset_T *args FUNC_ATTR_UNUSED) { if (*p_sel == NUL || check_opt_strings(p_sel, p_sel_values, false) != OK) { return e_invarg; } return NULL; } /// The 'keymodel' option is changed. const char *did_set_keymodel(optset_T *args FUNC_ATTR_UNUSED) { if (check_opt_strings(p_km, p_km_values, true) != OK) { return e_invarg; } km_stopsel = (vim_strchr(p_km, 'o') != NULL); km_startsel = (vim_strchr(p_km, 'a') != NULL); return NULL; } /// The 'display' option is changed. const char *did_set_display(optset_T *args FUNC_ATTR_UNUSED) { if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, true) != OK) { return e_invarg; } (void)init_chartab(); msg_grid_validate(); return NULL; } /// The 'spellfile' option is changed. const char *did_set_spellfile(optset_T *args) { char **varp = (char **)args->os_varp; // When there is a window for this buffer in which 'spell' // is set load the wordlists. if ((!valid_spellfile(*varp))) { return e_invarg; } return did_set_spell_option(true); } const char *did_set_spelllang(optset_T *args) { char **varp = (char **)args->os_varp; // When there is a window for this buffer in which 'spell' // is set load the wordlists. if (!valid_spelllang(*varp)) { return e_invarg; } return did_set_spell_option(false); } /// The 'spellcapcheck' option is changed. const char *did_set_spellcapcheck(optset_T *args) { win_T *win = (win_T *)args->os_win; // When 'spellcapcheck' is set compile the regexp program. return compile_cap_prog(win->w_s); } /// The 'spelloptions' option is changed. const char *did_set_spelloptions(optset_T *args) { win_T *win = (win_T *)args->os_win; if (opt_strings_flags(win->w_s->b_p_spo, p_spo_values, &(win->w_s->b_p_spo_flags), true) != OK) { return e_invarg; } return NULL; } /// The 'spellsuggest' option is changed. const char *did_set_spellsuggest(optset_T *args FUNC_ATTR_UNUSED) { if (spell_check_sps() != OK) { return e_invarg; } return NULL; } /// The 'splitkeep' option is changed. const char *did_set_splitkeep(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_spk, p_spk_values, false); } /// The 'mkspellmem' option is changed. const char *did_set_mkspellmem(optset_T *args FUNC_ATTR_UNUSED) { if (spell_check_msm() != OK) { return e_invarg; } return NULL; } /// The 'mousemodel' option is changed. const char *did_set_mousemodel(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_mousem, p_mousem_values, false); } /// The 'bufhidden' option is changed. const char *did_set_bufhidden(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; return did_set_opt_strings(buf->b_p_bh, p_bufhidden_values, false); } /// The 'buftype' option is changed. const char *did_set_buftype(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; win_T *win = (win_T *)args->os_win; // When 'buftype' is set, check for valid value. if ((buf->terminal && buf->b_p_bt[0] != 't') || (!buf->terminal && buf->b_p_bt[0] == 't') || check_opt_strings(buf->b_p_bt, p_buftype_values, false) != OK) { return e_invarg; } if (win->w_status_height || global_stl_height()) { win->w_redr_status = true; redraw_later(win, UPD_VALID); } buf->b_help = (buf->b_p_bt[0] == 'h'); redraw_titles(); return NULL; } /// The 'casemap' option is changed. const char *did_set_casemap(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_cmp, p_cmp_values, &cmp_flags, true); } /// The 'statusline', 'winbar', 'tabline', 'rulerformat' or 'statuscolumn' option is changed. /// /// @param rulerformat true if the 'rulerformat' option is changed /// @param statuscolumn true if the 'statuscolumn' option is changed static const char *did_set_statustabline_rulerformat(optset_T *args, bool rulerformat, bool statuscolumn) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; if (rulerformat) { // reset ru_wid first ru_wid = 0; } else if (statuscolumn) { // reset 'statuscolumn' width win->w_nrwidth_line_count = 0; } const char *errmsg = NULL; char *s = *varp; if (rulerformat && *s == '%') { // set ru_wid if 'ruf' starts with "%99(" if (*++s == '-') { // ignore a '-' s++; } int wid = getdigits_int(&s, true, 0); if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL) { ru_wid = wid; } else { errmsg = check_stl_option(p_ruf); } } else if (rulerformat || s[0] != '%' || s[1] != '!') { // check 'statusline', 'winbar', 'tabline' or 'statuscolumn' // only if it doesn't start with "%!" errmsg = check_stl_option(s); } if (rulerformat && errmsg == NULL) { comp_col(); } return errmsg; } /// The 'statusline' option is changed. const char *did_set_statusline(optset_T *args) { return did_set_statustabline_rulerformat(args, false, false); } /// The 'tabline' option is changed. const char *did_set_tabline(optset_T *args) { return did_set_statustabline_rulerformat(args, false, false); } /// The 'rulerformat' option is changed. const char *did_set_rulerformat(optset_T *args) { return did_set_statustabline_rulerformat(args, true, false); } /// The 'winbar' option is changed. const char *did_set_winbar(optset_T *args) { return did_set_statustabline_rulerformat(args, false, false); } /// The 'statuscolumn' option is changed. const char *did_set_statuscolumn(optset_T *args) { return did_set_statustabline_rulerformat(args, false, true); } /// The 'scrollopt' option is changed. const char *did_set_scrollopt(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_sbo, p_scbopt_values, true); } /// The 'complete' option is changed. const char *did_set_complete(optset_T *args) { char **varp = (char **)args->os_varp; // check if it is a valid value for 'complete' -- Acevedo for (char *s = *varp; *s;) { while (*s == ',' || *s == ' ') { s++; } if (!*s) { break; } if (vim_strchr(".wbuksid]tU", (uint8_t)(*s)) == NULL) { return illegal_char(args->os_errbuf, args->os_errbuflen, (uint8_t)(*s)); } if (*++s != NUL && *s != ',' && *s != ' ') { if (s[-1] == 'k' || s[-1] == 's') { // skip optional filename after 'k' and 's' while (*s && *s != ',' && *s != ' ') { if (*s == '\\' && s[1] != NUL) { s++; } s++; } } else { if (args->os_errbuf != NULL) { vim_snprintf(args->os_errbuf, args->os_errbuflen, _("E535: Illegal character after <%c>"), *--s); return args->os_errbuf; } return ""; } } } return NULL; } /// The 'completeopt' option is changed. const char *did_set_completeopt(optset_T *args FUNC_ATTR_UNUSED) { if (check_opt_strings(p_cot, p_cot_values, true) != OK) { return e_invarg; } completeopt_was_set(); return NULL; } #ifdef BACKSLASH_IN_FILENAME /// The 'completeslash' option is changed. const char *did_set_completeslash(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; if (check_opt_strings(p_csl, p_csl_values, false) != OK || check_opt_strings(buf->b_p_csl, p_csl_values, false) != OK) { return e_invarg; } return NULL; } #endif /// The 'showcmdloc' option is changed. const char *did_set_showcmdloc(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_sloc, p_sloc_values, true); } /// The 'signcolumn' option is changed. const char *did_set_signcolumn(optset_T *args) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; const char *oldval = args->os_oldval.string; if (check_signcolumn(*varp) != OK) { return e_invarg; } // When changing the 'signcolumn' to or from 'number', recompute the // width of the number column if 'number' or 'relativenumber' is set. if (((*oldval == 'n' && *(oldval + 1) == 'u') || (*win->w_p_scl == 'n' && *(win->w_p_scl + 1) == 'u')) && (win->w_p_nu || win->w_p_rnu)) { win->w_nrwidth_line_count = 0; } return NULL; } /// The 'foldcolumn' option is changed. const char *did_set_foldcolumn(optset_T *args) { char **varp = (char **)args->os_varp; if (**varp == NUL || check_opt_strings(*varp, p_fdc_values, false) != OK) { return e_invarg; } return NULL; } /// The 'backspace' option is changed. const char *did_set_backspace(optset_T *args FUNC_ATTR_UNUSED) { if (ascii_isdigit(*p_bs)) { if (*p_bs != '2') { return e_invarg; } } else if (check_opt_strings(p_bs, p_bs_values, true) != OK) { return e_invarg; } return NULL; } /// The 'switchbuf' option is changed. const char *did_set_switchbuf(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_swb, p_swb_values, &swb_flags, true); } /// The 'tagcase' option is changed. const char *did_set_tagcase(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; int opt_flags = args->os_flags; unsigned *flags; char *p; if (opt_flags & OPT_LOCAL) { p = buf->b_p_tc; flags = &buf->b_tc_flags; } else { p = p_tc; flags = &tc_flags; } if ((opt_flags & OPT_LOCAL) && *p == NUL) { // make the local value empty: use the global value *flags = 0; } else if (*p == NUL || opt_strings_flags(p, p_tc_values, flags, false) != OK) { return e_invarg; } return NULL; } /// The 'debug' option is changed. const char *did_set_debug(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_debug, p_debug_values, false); } /// The 'diffopt' option is changed. const char *did_set_diffopt(optset_T *args FUNC_ATTR_UNUSED) { if (diffopt_changed() == FAIL) { return e_invarg; } return NULL; } /// The 'foldmethod' option is changed. const char *did_set_foldmethod(optset_T *args) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; if (check_opt_strings(*varp, p_fdm_values, false) != OK || *win->w_p_fdm == NUL) { return e_invarg; } foldUpdateAll(win); if (foldmethodIsDiff(win)) { newFoldLevel(); } return NULL; } /// The 'foldmarker' option is changed. const char *did_set_foldmarker(optset_T *args) { win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; char *p = vim_strchr(*varp, ','); if (p == NULL) { return e_comma_required; } if (p == *varp || p[1] == NUL) { return e_invarg; } if (foldmethodIsMarker(win)) { foldUpdateAll(win); } return NULL; } /// The 'commentstring' option is changed. const char *did_set_commentstring(optset_T *args) { char **varp = (char **)args->os_varp; if (**varp != NUL && strstr(*varp, "%s") == NULL) { return N_("E537: 'commentstring' must be empty or contain %s"); } return NULL; } /// The 'foldignore' option is changed. const char *did_set_foldignore(optset_T *args) { win_T *win = (win_T *)args->os_win; if (foldmethodIsIndent(win)) { foldUpdateAll(win); } return NULL; } /// The 'virtualedit' option is changed. const char *did_set_virtualedit(optset_T *args) { win_T *win = (win_T *)args->os_win; char *ve = p_ve; unsigned *flags = &ve_flags; if (args->os_flags & OPT_LOCAL) { ve = win->w_p_ve; flags = &win->w_ve_flags; } if ((args->os_flags & OPT_LOCAL) && *ve == NUL) { // make the local value empty: use the global value *flags = 0; } else { if (opt_strings_flags(ve, p_ve_values, flags, true) != OK) { return e_invarg; } else if (strcmp(ve, args->os_oldval.string) != 0) { // Recompute cursor position in case the new 've' setting // changes something. validate_virtcol_win(win); // XXX: this only works when win == curwin coladvance(win->w_virtcol); } } return NULL; } /// The 'jumpoptions' option is changed. const char *did_set_jumpoptions(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_jop, p_jop_values, &jop_flags, true); } /// The 'redrawdebug' option is changed. const char *did_set_redrawdebug(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_rdb, p_rdb_values, &rdb_flags, true); } /// The 'wildoptions' option is changed. const char *did_set_wildoptions(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_flags(p_wop, p_wop_values, &wop_flags, true); } /// The 'lispoptions' option is changed. const char *did_set_lispoptions(optset_T *args) { char **varp = (char **)args->os_varp; if (**varp != NUL && strcmp(*varp, "expr:0") != 0 && strcmp(*varp, "expr:1") != 0) { return e_invarg; } return NULL; } /// The 'rightleftcmd' option is changed. const char *did_set_rightleftcmd(optset_T *args) { char **varp = (char **)args->os_varp; // Currently only "search" is a supported value. if (**varp != NUL && strcmp(*varp, "search") != 0) { return e_invarg; } return NULL; } /// The 'filetype' or the 'syntax' option is changed. const char *did_set_filetype_or_syntax(optset_T *args) { char **varp = (char **)args->os_varp; if (!valid_filetype(*varp)) { return e_invarg; } args->os_value_changed = strcmp(args->os_oldval.string, *varp) != 0; // Since we check the value, there is no need to set P_INSECURE, // even when the value comes from a modeline. args->os_value_checked = true; return NULL; } const char *did_set_winhl(optset_T *args) { win_T *win = (win_T *)args->os_win; if (!parse_winhl_opt(win)) { return e_invarg; } return NULL; } /// The 'varsofttabstop' option is changed. const char *did_set_varsofttabstop(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; char **varp = (char **)args->os_varp; if (!(*varp)[0] || ((*varp)[0] == '0' && !(*varp)[1])) { XFREE_CLEAR(buf->b_p_vsts_array); return NULL; } for (char *cp = *varp; *cp; cp++) { if (ascii_isdigit(*cp)) { continue; } if (*cp == ',' && cp > *varp && *(cp - 1) != ',') { continue; } return e_invarg; } long *oldarray = buf->b_p_vsts_array; if (tabstop_set(*varp, &(buf->b_p_vsts_array))) { xfree(oldarray); } else { return e_invarg; } return NULL; } /// The 'varstabstop' option is changed. const char *did_set_vartabstop(optset_T *args) { buf_T *buf = (buf_T *)args->os_buf; win_T *win = (win_T *)args->os_win; char **varp = (char **)args->os_varp; if (!(*varp)[0] || ((*varp)[0] == '0' && !(*varp)[1])) { XFREE_CLEAR(buf->b_p_vts_array); return NULL; } for (char *cp = *varp; *cp; cp++) { if (ascii_isdigit(*cp)) { continue; } if (*cp == ',' && cp > *varp && *(cp - 1) != ',') { continue; } return e_invarg; } long *oldarray = buf->b_p_vts_array; if (tabstop_set(*varp, &(buf->b_p_vts_array))) { xfree(oldarray); if (foldmethodIsIndent(win)) { foldUpdateAll(win); } } else { return e_invarg; } return NULL; } /// The 'nrformats' option is changed. const char *did_set_nrformats(optset_T *args) { char **varp = (char **)args->os_varp; return did_set_opt_strings(*varp, p_nf_values, true); } /// One of the '*expr' options is changed:, 'diffexpr', 'foldexpr', 'foldtext', /// 'formatexpr', 'includeexpr', 'indentexpr', 'patchexpr' and 'charconvert'. const char *did_set_optexpr(optset_T *args) { char **varp = (char **)args->os_varp; // If the option value starts with or s:, then replace that with // the script identifier. char *name = get_scriptlocal_funcname(*varp); if (name != NULL) { free_string_option(*varp); *varp = name; } return NULL; } /// The 'foldexpr' option is changed. const char *did_set_foldexpr(optset_T *args) { win_T *win = (win_T *)args->os_win; (void)did_set_optexpr(args); if (foldmethodIsExpr(win)) { foldUpdateAll(win); } return NULL; } /// The 'foldclose' option is changed. const char *did_set_foldclose(optset_T *args FUNC_ATTR_UNUSED) { return did_set_opt_strings(p_fcl, p_fcl_values, true); } /// An option which is a list of flags is set. Valid values are in 'flags'. static const char *did_set_option_listflag(char *val, char *flags, char *errbuf, size_t errbuflen) { for (char *s = val; *s; s++) { if (vim_strchr(flags, (uint8_t)(*s)) == NULL) { return illegal_char(errbuf, errbuflen, (uint8_t)(*s)); } } return NULL; } const char *did_set_guicursor(optset_T *args FUNC_ATTR_UNUSED) { return parse_shape_opt(SHAPE_CURSOR); } // When 'syntax' is set, load the syntax of that name static void do_syntax_autocmd(buf_T *buf, bool value_changed) { static int syn_recursive = 0; syn_recursive++; // Only pass true for "force" when the value changed or not used // recursively, to avoid endless recurrence. apply_autocmds(EVENT_SYNTAX, buf->b_p_syn, buf->b_fname, value_changed || syn_recursive == 1, buf); buf->b_flags |= BF_SYN_SET; syn_recursive--; } static void do_spelllang_source(win_T *win) { char fname[200]; char *q = win->w_s->b_p_spl; // Skip the first name if it is "cjk". if (strncmp(q, "cjk,", 4) == 0) { q += 4; } // Source the spell/LANG.{vim,lua} in 'runtimepath'. // They could set 'spellcapcheck' depending on the language. // Use the first name in 'spelllang' up to '_region' or // '.encoding'. char *p; for (p = q; *p != NUL; p++) { if (!ASCII_ISALNUM(*p) && *p != '-') { break; } } if (p > q) { vim_snprintf(fname, sizeof(fname), "spell/%.*s.*", (int)(p - q), q); source_runtime_vim_lua(fname, DIP_ALL); } } /// Handle string options that need some action to perform when changed. /// The new value must be allocated. /// /// @param opt_idx index in options[] table /// @param varp pointer to the option variable /// @param oldval previous value of the option /// @param errbuf buffer for errors, or NULL /// @param errbuflen length of errors buffer /// @param opt_flags OPT_LOCAL and/or OPT_GLOBAL /// @param value_checked value was checked to be safe, no need to set P_INSECURE /// /// @return NULL for success, or an untranslated error message for an error static const char *did_set_string_option_for(buf_T *buf, win_T *win, int opt_idx, char **varp, char *oldval, const char *value, char *errbuf, size_t errbuflen, int opt_flags, int *value_checked) { const char *errmsg = NULL; int restore_chartab = false; vimoption_T *opt = get_option(opt_idx); bool free_oldval = (opt->flags & P_ALLOCED); opt_did_set_cb_T did_set_cb = get_option_did_set_cb(opt_idx); bool value_changed = false; optset_T args = { .os_varp = varp, .os_idx = opt_idx, .os_flags = opt_flags, .os_oldval.string = oldval, .os_newval.string = value, .os_value_checked = false, .os_value_changed = false, .os_restore_chartab = false, .os_errbuf = errbuf, .os_errbuflen = errbuflen, .os_win = curwin, .os_buf = curbuf, }; // Disallow changing some options from secure mode if ((secure || sandbox != 0) && (opt->flags & P_SECURE)) { errmsg = e_secure; // Check for a "normal" directory or file name in some options. } else if (check_illegal_path_names(*varp, opt->flags)) { errmsg = e_invarg; } else if (did_set_cb != NULL) { // Invoke the option specific callback function to validate and apply // the new option value. errmsg = did_set_cb(&args); // The 'filetype' and 'syntax' option callback functions may change // the os_value_changed field. value_changed = args.os_value_changed; // The 'keymap', 'filetype' and 'syntax' option callback functions // may change the os_value_checked field. *value_checked = args.os_value_checked; // The 'isident', 'iskeyword', 'isprint' and 'isfname' options may // change the character table. On failure, this needs to be restored. restore_chartab = args.os_restore_chartab; } else if (varp == &p_shada) { // 'shada' errmsg = did_set_shada(&opt, &opt_idx, &free_oldval, errbuf, errbuflen); } // If an error is detected, restore the previous value. if (errmsg != NULL) { free_string_option(*varp); *varp = oldval; // When resetting some values, need to act on it. if (restore_chartab) { (void)buf_init_chartab(buf, true); } } else { // Remember where the option was set. set_option_sctx_idx(opt_idx, opt_flags, current_sctx); // Free string options that are in allocated memory. // Use "free_oldval", because recursiveness may change the flags under // our fingers (esp. init_highlight()). if (free_oldval) { free_string_option(oldval); } opt->flags |= P_ALLOCED; if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0 && (opt->indir & PV_BOTH)) { // global option with local value set to use global value; free // the local value and make it empty char *p = get_varp_scope(opt, OPT_LOCAL); free_string_option(*(char **)p); *(char **)p = empty_option; } else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL) { // May set global value for local option. set_string_option_global(opt, varp); } // Trigger the autocommand only after setting the flags. if (varp == &buf->b_p_syn) { do_syntax_autocmd(buf, value_changed); } else if (varp == &buf->b_p_ft) { // 'filetype' is set, trigger the FileType autocommand // Skip this when called from a modeline // Force autocmd when the filetype was changed if (!(opt_flags & OPT_MODELINE) || value_changed) { do_filetype_autocmd(buf, value_changed); } } else if (varp == &win->w_s->b_p_spl) { do_spelllang_source(win); } } if (varp == &p_mouse) { setmouse(); // in case 'mouse' changed } if ((varp == &p_flp || varp == &(buf->b_p_flp)) && win->w_briopt_list) { // Changing Formatlistpattern when briopt includes the list setting: // redraw redraw_all_later(UPD_NOT_VALID); } else if (varp == &p_wbr || varp == &(win->w_p_wbr)) { // add / remove window bars for 'winbar' set_winbar(true); } if (win->w_curswant != MAXCOL && (opt->flags & (P_CURSWANT | P_RALL)) != 0) { win->w_set_curswant = true; } check_redraw_for(buf, win, opt->flags); return errmsg; } const char *did_set_string_option(int opt_idx, char **varp, char *oldval, char *value, char *errbuf, size_t errbuflen, int opt_flags, int *value_checked) { return did_set_string_option_for(curbuf, curwin, opt_idx, varp, oldval, value, errbuf, errbuflen, opt_flags, value_checked); } /// Check an option that can be a range of string values. /// /// @param list when true: accept a list of values /// /// @return OK for correct value, FAIL otherwise. Empty is always OK. static int check_opt_strings(char *val, char **values, int list) { return opt_strings_flags(val, values, NULL, list); } /// Handle an option that can be a range of string values. /// Set a flag in "*flagp" for each string present. /// /// @param val new value /// @param values array of valid string values /// @param list when true: accept a list of values /// /// @return OK for correct value, FAIL otherwise. Empty is always OK. static int opt_strings_flags(const char *val, char **values, unsigned *flagp, bool list) { unsigned new_flags = 0; while (*val) { for (unsigned i = 0;; i++) { if (values[i] == NULL) { // val not found in values[] return FAIL; } size_t len = strlen(values[i]); if (strncmp(values[i], val, len) == 0 && ((list && val[len] == ',') || val[len] == NUL)) { val += len + (val[len] == ','); assert(i < sizeof(1U) * 8); new_flags |= (1U << i); break; // check next item in val list } } } if (flagp != NULL) { *flagp = new_flags; } return OK; } /// @return OK if "p" is a valid fileformat name, FAIL otherwise. int check_ff_value(char *p) { return check_opt_strings(p, p_ff_values, false); } static char shm_buf[SHM_LEN]; static int set_shm_recursive = 0; /// Save the actual shortmess Flags and clear them temporarily to avoid that /// file messages overwrites any output from the following commands. /// /// Caller must make sure to first call save_clear_shm_value() and then /// restore_shm_value() exactly the same number of times. void save_clear_shm_value(void) { if (strlen(p_shm) >= SHM_LEN) { iemsg(e_internal_error_shortmess_too_long); return; } if (++set_shm_recursive == 1) { STRCPY(shm_buf, p_shm); set_option_value_give_err("shm", STATIC_CSTR_AS_OPTVAL(""), 0); } } /// Restore the shortmess Flags set from the save_clear_shm_value() function. void restore_shm_value(void) { if (--set_shm_recursive == 0) { set_option_value_give_err("shm", CSTR_AS_OPTVAL(shm_buf), 0); memset(shm_buf, 0, SHM_LEN); } } static const char e_conflicts_with_value_of_listchars[] = N_("E834: Conflicts with value of 'listchars'"); static const char e_conflicts_with_value_of_fillchars[] = N_("E835: Conflicts with value of 'fillchars'"); /// Calls mb_cptr2char_adv(p) and returns the character. /// If "p" starts with "\x", "\u" or "\U" the hex or unicode value is used. /// Returns 0 for invalid hex or invalid UTF-8 byte. static int get_encoded_char_adv(const char **p) { const char *s = *p; if (s[0] == '\\' && (s[1] == 'x' || s[1] == 'u' || s[1] == 'U')) { int64_t num = 0; for (int bytes = s[1] == 'x' ? 1 : s[1] == 'u' ? 2 : 4; bytes > 0; bytes--) { *p += 2; int n = hexhex2nr(*p); if (n < 0) { return 0; } num = num * 256 + n; } *p += 2; return (int)num; } // TODO(bfredl): use schar_T representation and utfc_ptr2len int clen = utf_ptr2len(s); int c = mb_cptr2char_adv(p); if (clen == 1 && c > 127) { // Invalid UTF-8 byte return 0; } return c; } /// Handle setting 'listchars' or 'fillchars'. /// Assume monocell characters /// /// @param value points to either the global or the window-local value. /// @param is_listchars is true for "listchars" and false for "fillchars". /// @param apply if false, do not store the flags, only check for errors. /// @return error message, NULL if it's OK. static const char *set_chars_option(win_T *wp, const char *value, const bool is_listchars, const bool apply) { const char *last_multispace = NULL; // Last occurrence of "multispace:" const char *last_lmultispace = NULL; // Last occurrence of "leadmultispace:" int multispace_len = 0; // Length of lcs-multispace string int lead_multispace_len = 0; // Length of lcs-leadmultispace string struct chars_tab { int *cp; ///< char value char *name; ///< char id int def; ///< default value }; // XXX: Characters taking 2 columns is forbidden (TUI limitation?). Set old defaults in this case. struct chars_tab fcs_tab[] = { { &wp->w_p_fcs_chars.stl, "stl", ' ' }, { &wp->w_p_fcs_chars.stlnc, "stlnc", ' ' }, { &wp->w_p_fcs_chars.wbr, "wbr", ' ' }, { &wp->w_p_fcs_chars.horiz, "horiz", char2cells(0x2500) == 1 ? 0x2500 : '-' }, // ─ { &wp->w_p_fcs_chars.horizup, "horizup", char2cells(0x2534) == 1 ? 0x2534 : '-' }, // ┴ { &wp->w_p_fcs_chars.horizdown, "horizdown", char2cells(0x252c) == 1 ? 0x252c : '-' }, // ┬ { &wp->w_p_fcs_chars.vert, "vert", char2cells(0x2502) == 1 ? 0x2502 : '|' }, // │ { &wp->w_p_fcs_chars.vertleft, "vertleft", char2cells(0x2524) == 1 ? 0x2524 : '|' }, // ┤ { &wp->w_p_fcs_chars.vertright, "vertright", char2cells(0x251c) == 1 ? 0x251c : '|' }, // ├ { &wp->w_p_fcs_chars.verthoriz, "verthoriz", char2cells(0x253c) == 1 ? 0x253c : '+' }, // ┼ { &wp->w_p_fcs_chars.fold, "fold", char2cells(0x00b7) == 1 ? 0x00b7 : '-' }, // · { &wp->w_p_fcs_chars.foldopen, "foldopen", '-' }, { &wp->w_p_fcs_chars.foldclosed, "foldclose", '+' }, { &wp->w_p_fcs_chars.foldsep, "foldsep", char2cells(0x2502) == 1 ? 0x2502 : '|' }, // │ { &wp->w_p_fcs_chars.diff, "diff", '-' }, { &wp->w_p_fcs_chars.msgsep, "msgsep", ' ' }, { &wp->w_p_fcs_chars.eob, "eob", '~' }, { &wp->w_p_fcs_chars.lastline, "lastline", '@' }, }; struct chars_tab lcs_tab[] = { { &wp->w_p_lcs_chars.eol, "eol", NUL }, { &wp->w_p_lcs_chars.ext, "extends", NUL }, { &wp->w_p_lcs_chars.nbsp, "nbsp", NUL }, { &wp->w_p_lcs_chars.prec, "precedes", NUL }, { &wp->w_p_lcs_chars.space, "space", NUL }, { &wp->w_p_lcs_chars.tab2, "tab", NUL }, { &wp->w_p_lcs_chars.lead, "lead", NUL }, { &wp->w_p_lcs_chars.trail, "trail", NUL }, { &wp->w_p_lcs_chars.conceal, "conceal", NUL }, }; struct chars_tab *tab; int entries; if (is_listchars) { tab = lcs_tab; entries = ARRAY_SIZE(lcs_tab); if (wp->w_p_lcs[0] == NUL) { value = p_lcs; // local value is empty, use the global value } } else { tab = fcs_tab; entries = ARRAY_SIZE(fcs_tab); if (wp->w_p_fcs[0] == NUL) { value = p_fcs; // local value is empty, use the global value } } // first round: check for valid value, second round: assign values for (int round = 0; round <= (apply ? 1 : 0); round++) { if (round > 0) { // After checking that the value is valid: set defaults for (int i = 0; i < entries; i++) { if (tab[i].cp != NULL) { *(tab[i].cp) = tab[i].def; } } if (is_listchars) { wp->w_p_lcs_chars.tab1 = NUL; wp->w_p_lcs_chars.tab3 = NUL; xfree(wp->w_p_lcs_chars.multispace); if (multispace_len > 0) { wp->w_p_lcs_chars.multispace = xmalloc(((size_t)multispace_len + 1) * sizeof(int)); wp->w_p_lcs_chars.multispace[multispace_len] = NUL; } else { wp->w_p_lcs_chars.multispace = NULL; } xfree(wp->w_p_lcs_chars.leadmultispace); if (lead_multispace_len > 0) { wp->w_p_lcs_chars.leadmultispace = xmalloc(((size_t)lead_multispace_len + 1) * sizeof(int)); wp->w_p_lcs_chars.leadmultispace[lead_multispace_len] = NUL; } else { wp->w_p_lcs_chars.leadmultispace = NULL; } } } const char *p = value; while (*p) { int i; for (i = 0; i < entries; i++) { const size_t len = strlen(tab[i].name); if (strncmp(p, tab[i].name, len) == 0 && p[len] == ':' && p[len + 1] != NUL) { const char *s = p + len + 1; int c1 = get_encoded_char_adv(&s); if (c1 == 0 || char2cells(c1) > 1) { return e_invarg; } int c2 = 0, c3 = 0; if (tab[i].cp == &wp->w_p_lcs_chars.tab2) { if (*s == NUL) { return e_invarg; } c2 = get_encoded_char_adv(&s); if (c2 == 0 || char2cells(c2) > 1) { return e_invarg; } if (!(*s == ',' || *s == NUL)) { c3 = get_encoded_char_adv(&s); if (c3 == 0 || char2cells(c3) > 1) { return e_invarg; } } } if (*s == ',' || *s == NUL) { if (round > 0) { if (tab[i].cp == &wp->w_p_lcs_chars.tab2) { wp->w_p_lcs_chars.tab1 = c1; wp->w_p_lcs_chars.tab2 = c2; wp->w_p_lcs_chars.tab3 = c3; } else if (tab[i].cp != NULL) { *(tab[i].cp) = c1; } } p = s; break; } } } if (i == entries) { const size_t len = strlen("multispace"); const size_t len2 = strlen("leadmultispace"); if (is_listchars && strncmp(p, "multispace", len) == 0 && p[len] == ':' && p[len + 1] != NUL) { const char *s = p + len + 1; if (round == 0) { // Get length of lcs-multispace string in the first round last_multispace = p; multispace_len = 0; while (*s != NUL && *s != ',') { int c1 = get_encoded_char_adv(&s); if (c1 == 0 || char2cells(c1) > 1) { return e_invarg; } multispace_len++; } if (multispace_len == 0) { // lcs-multispace cannot be an empty string return e_invarg; } p = s; } else { int multispace_pos = 0; while (*s != NUL && *s != ',') { int c1 = get_encoded_char_adv(&s); if (p == last_multispace) { wp->w_p_lcs_chars.multispace[multispace_pos++] = c1; } } p = s; } } else if (is_listchars && strncmp(p, "leadmultispace", len2) == 0 && p[len2] == ':' && p[len2 + 1] != NUL) { const char *s = p + len2 + 1; if (round == 0) { // get length of lcs-leadmultispace string in first round last_lmultispace = p; lead_multispace_len = 0; while (*s != NUL && *s != ',') { int c1 = get_encoded_char_adv(&s); if (c1 == 0 || char2cells(c1) > 1) { return e_invarg; } lead_multispace_len++; } if (lead_multispace_len == 0) { // lcs-leadmultispace cannot be an empty string return e_invarg; } p = s; } else { int multispace_pos = 0; while (*s != NUL && *s != ',') { int c1 = get_encoded_char_adv(&s); if (p == last_lmultispace) { wp->w_p_lcs_chars.leadmultispace[multispace_pos++] = c1; } } p = s; } } else { return e_invarg; } } if (*p == ',') { p++; } } } return NULL; // no error } /// Check all global and local values of 'listchars' and 'fillchars'. /// May set different defaults in case character widths change. /// /// @return an untranslated error message if any of them is invalid, NULL otherwise. const char *check_chars_options(void) { if (set_listchars_option(curwin, p_lcs, false) != NULL) { return e_conflicts_with_value_of_listchars; } if (set_fillchars_option(curwin, p_fcs, false) != NULL) { return e_conflicts_with_value_of_fillchars; } FOR_ALL_TAB_WINDOWS(tp, wp) { if (set_listchars_option(wp, wp->w_p_lcs, true) != NULL) { return e_conflicts_with_value_of_listchars; } if (set_fillchars_option(wp, wp->w_p_fcs, true) != NULL) { return e_conflicts_with_value_of_fillchars; } } return NULL; }