diff options
Diffstat (limited to 'src/optionstr.c')
| -rw-r--r-- | src/optionstr.c | 4630 |
1 files changed, 4630 insertions, 0 deletions
diff --git a/src/optionstr.c b/src/optionstr.c new file mode 100644 index 0000000..65a80af --- /dev/null +++ b/src/optionstr.c @@ -0,0 +1,4630 @@ +/* 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. + */ + +/* + * optionstr.c: Functions related to string options + */ + +#include "vim.h" + +static char_u shm_buf[SHM_LEN]; +static int set_shm_recursive = 0; + +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", "insertmode", "lang", "mess", + "showmatch", "operator", "register", "shell", + "spell", "term", "wildmode", NULL}; +#if defined(FEAT_LINEBREAK) +// Note: Keep this in sync with briopt_check() +static char *(p_briopt_values[]) = {"shift:", "min:", "sbr", "list:", "column:", NULL}; +#endif +#if defined(FEAT_DIFF) +// Note: Keep this in sync with diffopt_changed() +static char *(p_dip_values[]) = {"filler", "context:", "iblank", "icase", "iwhite", "iwhiteall", "iwhiteeol", "horizontal", "vertical", "closeoff", "hiddenoff", "foldcolumn:", "followwrap", "internal", "indent-heuristic", "algorithm:", NULL}; +static char *(p_dip_algorithm_values[]) = {"myers", "minimal", "patience", "histogram", NULL}; +#endif +static char *(p_nf_values[]) = {"bin", "octal", "hex", "alpha", "unsigned", NULL}; +static char *(p_ff_values[]) = {FF_UNIX, FF_DOS, FF_MAC, NULL}; +#ifdef FEAT_CLIPBOARD +// Note: Keep this in sync with did_set_clipboard() +static char *(p_cb_values[]) = {"unnamed", "unnamedplus", "autoselect", "autoselectplus", "autoselectml", "html", "exclude:", NULL}; +#endif +#ifdef FEAT_CRYPT +static char *(p_cm_values[]) = {"zip", "blowfish", "blowfish2", + # ifdef FEAT_SODIUM + "xchacha20", "xchacha20v2", + # endif + NULL}; +#endif +static char *(p_cmp_values[]) = {"internal", "keepascii", NULL}; +#ifdef FEAT_SYN_HL +// Note: Keep this in sync with fill_culopt_flags() +static char *(p_culopt_values[]) = {"line", "screenline", "number", "both", NULL}; +#endif +static char *(p_dy_values[]) = {"lastline", "truncate", "uhex", NULL}; +static char *(p_jop_values[]) = {"stack", NULL}; +#ifdef FEAT_FOLDING +static char *(p_fdo_values[]) = {"all", "block", "hor", "mark", "percent", + "quickfix", "search", "tag", "insert", + "undo", "jump", NULL}; +#endif +// Note: Keep this in sync with match_keyprotocol() +static char *(p_kpc_protocol_values[]) = {"none", "mok2", "kitty", NULL}; +#ifdef FEAT_PROP_POPUP +// Note: Keep this in sync with parse_popup_option() +static char *(p_popup_option_values[]) = {"height:", "width:", "highlight:", "border:", "align:", NULL}; +static char *(p_popup_option_border_values[]) = {"on", "off", NULL}; +static char *(p_popup_option_align_values[]) = {"item", "menu", NULL}; +#endif +#if defined(FEAT_SPELL) +// Note: Keep this in sync with spell_check_sps() +static char *(p_sps_values[]) = {"best", "fast", "double", "expr:", "file:", "timeout:", NULL}; +#endif +#ifdef FEAT_SESSION +// 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}; +#endif +// Keep in sync with SWB_ flags in option.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}; +#if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_MSWIN) +static char *(p_toolbar_values[]) = {"text", "icons", "tooltips", "horiz", NULL}; +#endif +#if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) +static char *(p_tbis_values[]) = {"tiny", "small", "medium", "large", "huge", "giant", NULL}; +#endif +#if defined(UNIX) || defined(VMS) +static char *(p_ttym_values[]) = {"xterm", "xterm2", "dec", "netterm", "jsbterm", "pterm", "urxvt", "sgr", NULL}; +#endif +static char *(p_ve_values[]) = {"block", "insert", "all", "onemore", "none", "NONE", NULL}; +// Note: Keep this in sync with check_opt_wim() +static char *(p_wim_values[]) = {"full", "longest", "list", "lastused", NULL}; +static char *(p_wop_values[]) = {"fuzzy", "tagfile", "pum", NULL}; +#ifdef FEAT_WAK +static char *(p_wak_values[]) = {"yes", "menu", "no", NULL}; +#endif +static char *(p_mousem_values[]) = {"extend", "popup", "popup_setpos", "mac", NULL}; +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}; +#ifdef FEAT_BROWSE +static char *(p_bsdir_values[]) = {"current", "last", "buffer", NULL}; +#endif +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", "terminal", "acwrite", "prompt", "popup", NULL}; +static char *(p_bufhidden_values[]) = {"hide", "unload", "delete", "wipe", NULL}; +static char *(p_bs_values[]) = {"indent", "eol", "start", "nostop", NULL}; +#ifdef FEAT_FOLDING +static char *(p_fdm_values[]) = {"manual", "expr", "marker", "indent", "syntax", +# ifdef FEAT_DIFF + "diff", +# endif + NULL}; +static char *(p_fcl_values[]) = {"all", NULL}; +#endif +static char *(p_cot_values[]) = {"menu", "menuone", "longest", "preview", "popup", "popuphidden", "noinsert", "noselect", NULL}; +#ifdef BACKSLASH_IN_FILENAME +static char *(p_csl_values[]) = {"slash", "backslash", NULL}; +#endif +#ifdef FEAT_SIGNS +static char *(p_scl_values[]) = {"yes", "no", "auto", "number", NULL}; +#endif +#if defined(MSWIN) && defined(FEAT_TERMINAL) +static char *(p_twt_values[]) = {"winpty", "conpty", "", NULL}; +#endif +static char *(p_sloc_values[]) = {"last", "statusline", "tabline", NULL}; +static char *(p_sws_values[]) = {"fsync", "sync", NULL}; + +static int check_opt_strings(char_u *val, char **values, int list); +static int opt_strings_flags(char_u *val, char **values, unsigned *flagp, int list); + +/* + * 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); +#ifdef FEAT_SESSION + (void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE); + (void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, TRUE); +#endif +#ifdef FEAT_FOLDING + (void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE); +#endif + (void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE); + (void)opt_strings_flags(p_jop, p_jop_values, &jop_flags, TRUE); + (void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, FALSE); + (void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, TRUE); +#if defined(UNIX) || defined(VMS) + (void)opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE); +#endif +#if defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_MSWIN) + (void)opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, TRUE); +#endif +#if defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK) + (void)opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE); +#endif + (void)opt_strings_flags(p_swb, p_swb_values, &swb_flags, TRUE); +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * 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_u *oldval, + char_u *oldval_l, + char_u *oldval_g, + char_u *newval) +{ + // Don't do this recursively. + if (oldval == NULL || newval == NULL + || *get_vim_var_str(VV_OPTION_TYPE) != NUL) + return; + + char_u buf_type[7]; + + sprintf((char *)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, (char_u *)"setlocal", -1); + set_vim_var_string(VV_OPTION_OLDLOCAL, oldval, -1); + } + if (opt_flags & OPT_GLOBAL) + { + set_vim_var_string(VV_OPTION_COMMAND, (char_u *)"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, (char_u *)"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, (char_u *)"modeline", -1); + set_vim_var_string(VV_OPTION_OLDLOCAL, oldval, -1); + } + apply_autocmds(EVENT_OPTIONSET, + get_option_fullname(opt_idx), NULL, FALSE, + NULL); + reset_v_option_vars(); +} +#endif + + static char * +illegal_char(char *errbuf, size_t errbuflen, int c) +{ + if (errbuf == NULL) + return ""; + vim_snprintf((char *)errbuf, errbuflen, _(e_illegal_character_str), + (char *)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); +#ifdef FEAT_FIND_ID + check_string_option(&buf->b_p_def); + check_string_option(&buf->b_p_inc); +# ifdef FEAT_EVAL + check_string_option(&buf->b_p_inex); +# endif +#endif +#if defined(FEAT_EVAL) + check_string_option(&buf->b_p_inde); + check_string_option(&buf->b_p_indk); +#endif +#if defined(FEAT_BEVAL) && defined(FEAT_EVAL) + check_string_option(&buf->b_p_bexpr); +#endif +#if defined(FEAT_CRYPT) + check_string_option(&buf->b_p_cm); +#endif + check_string_option(&buf->b_p_fp); +#if defined(FEAT_EVAL) + check_string_option(&buf->b_p_fex); +#endif +#ifdef FEAT_CRYPT + check_string_option(&buf->b_p_key); +#endif + check_string_option(&buf->b_p_kp); + check_string_option(&buf->b_p_mps); + check_string_option(&buf->b_p_fo); + check_string_option(&buf->b_p_flp); + check_string_option(&buf->b_p_isk); + check_string_option(&buf->b_p_com); +#ifdef FEAT_FOLDING + check_string_option(&buf->b_p_cms); +#endif + check_string_option(&buf->b_p_nf); + check_string_option(&buf->b_p_qe); +#ifdef FEAT_SYN_HL + check_string_option(&buf->b_p_syn); + check_string_option(&buf->b_s.b_syn_isk); +#endif +#ifdef FEAT_SPELL + check_string_option(&buf->b_s.b_p_spc); + check_string_option(&buf->b_s.b_p_spf); + check_string_option(&buf->b_s.b_p_spl); + check_string_option(&buf->b_s.b_p_spo); +#endif + check_string_option(&buf->b_p_sua); + check_string_option(&buf->b_p_cink); + check_string_option(&buf->b_p_cino); + check_string_option(&buf->b_p_cinsd); + 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_cpt); +#ifdef FEAT_COMPL_FUNC + check_string_option(&buf->b_p_cfu); + check_string_option(&buf->b_p_ofu); + check_string_option(&buf->b_p_tsrfu); +#endif +#ifdef FEAT_EVAL + check_string_option(&buf->b_p_tfu); +#endif +#ifdef FEAT_KEYMAP + check_string_option(&buf->b_p_keymap); +#endif +#ifdef FEAT_QUICKFIX + check_string_option(&buf->b_p_gp); + check_string_option(&buf->b_p_mp); + check_string_option(&buf->b_p_efm); +#endif + check_string_option(&buf->b_p_ep); + check_string_option(&buf->b_p_path); + check_string_option(&buf->b_p_tags); + check_string_option(&buf->b_p_tc); + check_string_option(&buf->b_p_dict); + check_string_option(&buf->b_p_tsr); + check_string_option(&buf->b_p_lw); + check_string_option(&buf->b_p_bkc); + check_string_option(&buf->b_p_menc); +#ifdef FEAT_VARTABS + check_string_option(&buf->b_p_vsts); + check_string_option(&buf->b_p_vts); +#endif +} + +/* + * Free the string allocated for an option. + * Checks for the string being empty_option. This may happen if we're out of + * memory, vim_strsave() returned NULL, which was replaced by empty_option by + * check_options(). + * Does NOT check for P_ALLOCED flag! + */ + void +free_string_option(char_u *p) +{ + if (p != empty_option) + vim_free(p); +} + + void +clear_string_option(char_u **pp) +{ + if (*pp != empty_option) + vim_free(*pp); + *pp = empty_option; +} + + void +check_string_option(char_u **pp) +{ + if (*pp == NULL) + *pp = empty_option; +} + +/* + * Set global value for string option when it's a local option. + */ + static void +set_string_option_global( + int opt_idx, // option index + char_u **varp) // pointer to option variable +{ + char_u **p, *s; + + // the global value is always allocated + if (is_window_local_option(opt_idx)) + p = (char_u **)GLOBAL_WO(varp); + else + p = (char_u **)get_option_var(opt_idx); + if (!is_global_option(opt_idx) + && p != varp + && (s = vim_strsave(*varp)) != NULL) + { + 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". + */ + void +set_string_option_direct( + char_u *name, + int opt_idx, + char_u *val, + int opt_flags, // OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL + int set_sid UNUSED) +{ + char_u *s; + char_u **varp; + int both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0; + int idx = opt_idx; + + if (idx == -1) // use name + { + idx = findoption(name); + if (idx < 0) // not found (should not happen) + { + semsg(_(e_internal_error_str), "set_string_option_direct()"); + siemsg("For option %s", name); + return; + } + } + + if (is_hidden_option(idx)) // can't set hidden option + return; + + s = vim_strsave(val); + if (s == NULL) + return; + + varp = (char_u **)get_option_varp_scope(idx, + both ? OPT_LOCAL : opt_flags); + if ((opt_flags & OPT_FREE) && (get_option_flags(idx) & P_ALLOCED)) + free_string_option(*varp); + *varp = s; + + // For buffer/window local option may also set the global value. + if (both) + set_string_option_global(idx, varp); + + set_option_flag(idx, 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 (is_global_local_option(idx) && both) + { + free_string_option(*varp); + *varp = empty_option; + } +# ifdef FEAT_EVAL + 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; + script_ctx.sc_version = 1; + } + set_option_sctx_idx(idx, opt_flags, script_ctx); + } +# endif +} + +#if defined(FEAT_PROP_POPUP) || \ + (defined(FEAT_DIFF) && defined(FEAT_FOLDING)) || defined(PROTO) +/* + * 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, + char_u *name, + int opt_idx, + char_u *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(); +} +#endif + +#if defined(FEAT_PROP_POPUP) || defined(PROTO) +/* + * Like set_string_option_direct(), but for a buffer-local option in "buf". + * Blocks autocommands to avoid the old curbuf becoming invalid. + */ + void +set_string_option_direct_in_buf( + buf_T *buf, + char_u *name, + int opt_idx, + char_u *val, + int opt_flags, + int set_sid) +{ + buf_T *save_curbuf = curbuf; + + block_autocmds(); + curbuf = buf; + curwin->w_buffer = curbuf; + set_string_option_direct(name, opt_idx, val, opt_flags, set_sid); + curbuf = save_curbuf; + curwin->w_buffer = curbuf; + unblock_autocmds(); +} +#endif + +/* + * Set a string option to a new value, and handle the effects. + * + * Returns NULL on success or an untranslated error message on error. + */ + char * +set_string_option( + int opt_idx, + char_u *value, + int opt_flags, // OPT_LOCAL and/or OPT_GLOBAL + char *errbuf, + size_t errbuflen) +{ + char_u *s; + char_u **varp; + char_u *oldval; +#if defined(FEAT_EVAL) + char_u *oldval_l = NULL; + char_u *oldval_g = NULL; + char_u *saved_oldval = NULL; + char_u *saved_oldval_l = NULL; + char_u *saved_oldval_g = NULL; + char_u *saved_newval = NULL; +#endif + char *errmsg = NULL; + int value_checked = FALSE; + + if (is_hidden_option(opt_idx)) // don't set hidden option + return NULL; + + s = vim_strsave(value == NULL ? (char_u *)"" : value); + if (s == NULL) + return NULL; + + varp = (char_u **)get_option_varp_scope(opt_idx, + (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0 + ? (is_global_local_option(opt_idx) + ? OPT_GLOBAL : OPT_LOCAL) + : opt_flags); + oldval = *varp; +#if defined(FEAT_EVAL) + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + { + oldval_l = *(char_u **)get_option_varp_scope(opt_idx, OPT_LOCAL); + oldval_g = *(char_u **)get_option_varp_scope(opt_idx, OPT_GLOBAL); + } +#endif + *varp = s; + +#if defined(FEAT_EVAL) + if (!starting +# ifdef FEAT_CRYPT + && !is_crypt_key_option(opt_idx) +# endif + ) + { + if (oldval_l != NULL) + saved_oldval_l = vim_strsave(oldval_l); + if (oldval_g != NULL) + saved_oldval_g = vim_strsave(oldval_g); + saved_oldval = vim_strsave(oldval); + saved_newval = vim_strsave(s); + } +#endif + if ((errmsg = did_set_string_option(opt_idx, varp, oldval, value, errbuf, + errbuflen, opt_flags, OP_NONE, &value_checked)) == NULL) + did_set_option(opt_idx, opt_flags, TRUE, value_checked); + +#if defined(FEAT_EVAL) + // call autocommand after handling side effects + if (errmsg == NULL) + trigger_optionset_string(opt_idx, opt_flags, + saved_oldval, saved_oldval_l, + saved_oldval_g, saved_newval); + vim_free(saved_oldval); + vim_free(saved_oldval_l); + vim_free(saved_oldval_g); + vim_free(saved_newval); +#endif + return errmsg; +} + +/* + * Return TRUE if "val" is a valid 'filetype' name. + * Also used for 'syntax' and 'keymap'. + */ + static int +valid_filetype(char_u *val) +{ + return valid_name(val, ".-_"); +} + +#ifdef FEAT_STL_OPT +/* + * Check validity of options with the 'statusline' format. + * Return an untranslated error message or NULL. + */ + static char * +check_stl_option(char_u *s) +{ + int groupdepth = 0; + static char errbuf[ERR_BUFLEN]; + int errbuflen = ERR_BUFLEN; + + 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 (VIM_ISDIGIT(*s)) + s++; + if (*s == STL_USER_HL) + continue; + if (*s == '.') + { + s++; + while (*s && VIM_ISDIGIT(*s)) + s++; + } + if (*s == '(') + { + groupdepth++; + continue; + } + if (vim_strchr(STL_ALL, *s) == NULL) + { + return illegal_char(errbuf, errbuflen, *s); + } + if (*s == '{') + { + int reevaluate = (*++s == '%'); + + if (reevaluate && *++s == '}') + // "}" is not allowed immediately after "%{%" + return illegal_char(errbuf, errbuflen, '}'); + while ((*s != '}' || (reevaluate && s[-1] != '%')) && *s) + s++; + if (*s != '}') + return e_unclosed_expression_sequence; + } + } + if (groupdepth != 0) + return e_unbalanced_groups; + return NULL; +} +#endif + +/* + * 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 int +check_illegal_path_names(int opt_idx, char_u **varp) +{ + return (((get_option_flags(opt_idx) & P_NFNAME) + && vim_strpbrk(*varp, (char_u *)(secure + ? "/\\*?[|;&<>\r\n" : "/\\*?[<>\r\n")) != NULL) + || ((get_option_flags(opt_idx) & P_NDNAME) + && vim_strpbrk(*varp, (char_u *)"*?[|;&<>\r\n") != NULL)); +} + +/* + * An option that accepts a list of flags is changed. + * e.g. 'viewoptions', 'switchbuf', 'casemap', etc. + */ + static char * +did_set_opt_flags(char_u *val, char **values, unsigned *flagp, int list) +{ + if (opt_strings_flags(val, values, flagp, list) == FAIL) + return e_invalid_argument; + + return NULL; +} + +/* + * An option that accepts a list of string values is changed. + * e.g. 'nrformats', 'scrollopt', 'wildoptions', etc. + */ + static char * +did_set_opt_strings(char_u *val, char **values, int list) +{ + return did_set_opt_flags(val, values, NULL, list); +} + +/* + * An option which is a list of flags is set. Valid values are in 'flags'. + */ + static char * +did_set_option_listflag( + char_u *val, + char_u *flags, + char *errbuf, + size_t errbuflen) +{ + char_u *s; + + for (s = val; *s; ++s) + if (vim_strchr(flags, *s) == NULL) + return illegal_char(errbuf, errbuflen, *s); + + return NULL; +} + +/* + * Expand an option that accepts a list of fixed string values with known + * number of items. + */ + static int +expand_set_opt_string( + optexpand_T *args, + char **values, + size_t numValues, + int *numMatches, + char_u ***matches) +{ + char_u *p; + regmatch_T *regmatch = args->oe_regmatch; + int include_orig_val = args->oe_include_orig_val; + char_u *option_val = args->oe_opt_value; + + // Assume numValues is small since they are fixed enums, so just allocate + // upfront instead of needing two passes to calculate output size. + *matches = ALLOC_MULT(char_u *, numValues + 1); + if (*matches == NULL) + return FAIL; + + int count = 0; + + if (include_orig_val && *option_val != NUL) + { + p = vim_strsave(option_val); + if (p == NULL) + { + VIM_CLEAR(*matches); + return FAIL; + } + (*matches)[count++] = p; + } + + for (char **val = values; *val != NULL; val++) + { + if (include_orig_val && *option_val != NUL) + { + if (STRCMP((char_u*)*val, option_val) == 0) + continue; + } + if (vim_regexec(regmatch, (char_u*)(*val), (colnr_T)0)) + { + p = vim_strsave((char_u*)*val); + if (p == NULL) + { + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + else + break; + } + (*matches)[count++] = p; + } + } + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + *numMatches = count; + return OK; +} + +static char_u *set_opt_callback_orig_option = NULL; +static char_u *((*set_opt_callback_func)(expand_T *, int)); + +/* + * Callback used by expand_set_opt_generic to also include the original value + * as the first item. + */ + static char_u * +expand_set_opt_generic_cb(expand_T *xp, int idx) +{ + if (idx == 0) + { + if (set_opt_callback_orig_option != NULL) + return set_opt_callback_orig_option; + else + return (char_u *)""; // empty strings are ignored + } + return set_opt_callback_func(xp, idx - 1); +} + +/* + * Expand an option with a callback that iterates through a list of possible + * names using an index. + */ + static int +expand_set_opt_generic( + optexpand_T *args, + char_u *((*func)(expand_T *, int)), + int *numMatches, + char_u ***matches) +{ + int ret; + + set_opt_callback_orig_option = args->oe_include_orig_val ? + args->oe_opt_value : NULL; + set_opt_callback_func = func; + + ret = ExpandGeneric( + (char_u*)"", // not using fuzzy as currently EXPAND_STRING_SETTING doesn't use it + args->oe_xp, + args->oe_regmatch, + matches, + numMatches, + expand_set_opt_generic_cb, + FALSE); + + set_opt_callback_orig_option = NULL; + set_opt_callback_func = NULL; + return ret; +} + +# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) +static garray_T *expand_cb_ga; +static optexpand_T *expand_cb_args; + +/* + * Callback provided to a function in expand_set_opt_callback. Will perform + * regex matching against the value and add to the list. + * + * Returns OK usually. Returns FAIL if it failed to allocate memory, and the + * caller should terminate the enumeration. + */ + static int +expand_set_opt_callback_cb(char_u *val) +{ + regmatch_T *regmatch = expand_cb_args->oe_regmatch; + expand_T *xp = expand_cb_args->oe_xp; + garray_T *ga = expand_cb_ga; + char_u *str; + + if (val == NULL || *val == NUL) + return OK; + + if (xp->xp_pattern[0] != NUL && + !vim_regexec(regmatch, val, (colnr_T)0)) + return OK; + + str = vim_strsave_escaped(val, (char_u *)" \t\\"); + + if (str == NULL) + return FAIL; + + if (ga_grow(ga, 1) == FAIL) + { + vim_free(str); + return FAIL; + } + + ((char_u **)ga->ga_data)[ga->ga_len] = str; + ++ga->ga_len; + return OK; +} + +/* + * Expand an option with a provided function that takes a callback. The + * function will enumerate through all options and call the callback to add it + * to the list. + * + * "func" is the enumerator function that will generate the list of options. + * "func_params" is a single parameter that will be passed to func. + */ + static int +expand_set_opt_callback( + optexpand_T *args, + void (*func)(optexpand_T *, void* params, int (*cb)(char_u *val)), + void *func_params, + int *numMatches, + char_u ***matches) +{ + garray_T ga; + int include_orig_val = args->oe_include_orig_val; + char_u *option_val = args->oe_opt_value; + + ga_init2(&ga, sizeof(char *), 30); + + if (include_orig_val && *option_val != NUL) + { + char_u *p = vim_strsave(option_val); + if (p == NULL) + return FAIL; + if (ga_grow(&ga, 1) == FAIL) + { + vim_free(p); + return FAIL; + } + ((char_u **)ga.ga_data)[ga.ga_len] = p; + ++ga.ga_len; + } + + expand_cb_ga = &ga; + expand_cb_args = args; + + func(args, func_params, expand_set_opt_callback_cb); + + expand_cb_ga = NULL; + expand_cb_args = NULL; + + *matches = ga.ga_data; + *numMatches = ga.ga_len; + return OK; +} +#endif + +/* + * Expand an option which is a list of flags. + */ + static int +expand_set_opt_listflag( + optexpand_T *args, + char_u *flags, + int *numMatches, + char_u ***matches) +{ + char_u *p; + char_u *option_val = args->oe_opt_value; + char_u *cmdline_val = args->oe_set_arg; + int append = args->oe_append; + int include_orig_val = args->oe_include_orig_val && (*option_val != NUL); + + size_t num_flags = STRLEN(flags); + + // Assume we only have small number of flags, so just allocate max size. + *matches = ALLOC_MULT(char_u *, num_flags + 1); + if (*matches == NULL) + return FAIL; + + int count = 0; + + if (include_orig_val) + { + p = vim_strsave(option_val); + if (p == NULL) + { + VIM_CLEAR(*matches); + return FAIL; + } + (*matches)[count++] = p; + } + + for (char_u *flag = flags; *flag != NUL; flag++) + { + if (append && vim_strchr(option_val, *flag) != NULL) + continue; + + if (vim_strchr(cmdline_val, *flag) == NULL) + { + if (include_orig_val + && option_val[1] == NUL + && *flag == option_val[0]) + { + // This value is already used as the first choice as it's the + // existing flag. Just skip it to avoid duplicate. + continue; + } + p = vim_strnsave(flag, 1); + if (p == NULL) + { + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + else + break; + } + (*matches)[count++] = p; + } + } + + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + *numMatches = count; + return OK; +} + +/* + * The 'ambiwidth' option is changed. + */ + char * +did_set_ambiwidth(optset_T *args UNUSED) +{ + if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK) + return e_invalid_argument; + + return check_chars_options(); +} + + int +expand_set_ambiwidth(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ambw_values, + ARRAY_LENGTH(p_ambw_values) - 1, + numMatches, + matches); +} + +/* + * The 'background' option is changed. + */ + char * +did_set_background(optset_T *args) +{ + if (check_opt_strings(p_bg, p_bg_values, FALSE) == FAIL) + return e_invalid_argument; + + if (args->os_oldval.string != NULL && args->os_oldval.string[0] == *p_bg) + // Value was not changed + return NULL; + +#ifdef FEAT_EVAL + int dark = (*p_bg == 'd'); +#endif + + init_highlight(FALSE, FALSE); + +#ifdef FEAT_EVAL + if (dark != (*p_bg == 'd') + && get_var_value((char_u *)"g:colors_name") != NULL) + { + // The color scheme must have set 'background' back to another + // value, that's not what we want here. Disable the color + // scheme and set the colors again. + do_unlet((char_u *)"g:colors_name", TRUE); + free_string_option(p_bg); + p_bg = vim_strsave((char_u *)(dark ? "dark" : "light")); + check_string_option(&p_bg); + init_highlight(FALSE, FALSE); + } +#endif +#ifdef FEAT_TERMINAL + term_update_colors_all(); +#endif + + return NULL; +} + + int +expand_set_background(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bg_values, + ARRAY_LENGTH(p_bg_values) - 1, + numMatches, + matches); +} + +/* + * The 'backspace' option is changed. + */ + char * +did_set_backspace(optset_T *args UNUSED) +{ + if (VIM_ISDIGIT(*p_bs)) + { + if (*p_bs > '3' || p_bs[1] != NUL) + return e_invalid_argument; + } + else if (check_opt_strings(p_bs, p_bs_values, TRUE) != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_backspace(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bs_values, + ARRAY_LENGTH(p_bs_values) - 1, + numMatches, + matches); +} + +/* + * The 'backupcopy' option is changed. + */ + char * +did_set_backupcopy(optset_T *args) +{ + char_u *bkc = p_bkc; + unsigned int *flags = &bkc_flags; + char *errmsg = NULL; + + if (args->os_flags & OPT_LOCAL) + { + bkc = curbuf->b_p_bkc; + flags = &curbuf->b_bkc_flags; + } + + if ((args->os_flags & OPT_LOCAL) && *bkc == NUL) + // make the local value empty: use the global value + *flags = 0; + else + { + if (opt_strings_flags(bkc, p_bkc_values, flags, TRUE) != OK) + errmsg = e_invalid_argument; + if ((((int)*flags & BKC_AUTO) != 0) + + (((int)*flags & BKC_YES) != 0) + + (((int)*flags & BKC_NO) != 0) != 1) + { + // Must have exactly one of "auto", "yes" and "no". + (void)opt_strings_flags(args->os_oldval.string, p_bkc_values, + flags, TRUE); + errmsg = e_invalid_argument; + } + } + + return errmsg; +} + + int +expand_set_backupcopy(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bkc_values, + ARRAY_LENGTH(p_bkc_values) - 1, + numMatches, + matches); +} + +/* + * The 'backupext' or the 'patchmode' option is changed. + */ + char * +did_set_backupext_or_patchmode(optset_T *args 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. + */ + char * +did_set_belloff(optset_T *args UNUSED) +{ + return did_set_opt_flags(p_bo, p_bo_values, &bo_flags, TRUE); +} + + int +expand_set_belloff(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bo_values, + ARRAY_LENGTH(p_bo_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) +/* + * The 'breakindentopt' option is changed. + */ + char * +did_set_breakindentopt(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (briopt_check(curwin) == FAIL) + errmsg = e_invalid_argument; + // list setting requires a redraw + if (curwin->w_briopt_list) + redraw_all_later(UPD_NOT_VALID); + + return errmsg; +} + + int +expand_set_breakindentopt(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_briopt_values, + ARRAY_LENGTH(p_briopt_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_BROWSE) || defined(PROTO) +/* + * The 'browsedir' option is changed. + */ + char * +did_set_browsedir(optset_T *args UNUSED) +{ + if (check_opt_strings(p_bsdir, p_bsdir_values, FALSE) != OK + && !mch_isdir(p_bsdir)) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_browsedir(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bsdir_values, + ARRAY_LENGTH(p_bsdir_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'bufhidden' option is changed. + */ + char * +did_set_bufhidden(optset_T *args UNUSED) +{ + return did_set_opt_strings(curbuf->b_p_bh, p_bufhidden_values, FALSE); +} + + int +expand_set_bufhidden(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_bufhidden_values, + ARRAY_LENGTH(p_bufhidden_values) - 1, + numMatches, + matches); +} + +/* + * The 'buftype' option is changed. + */ + char * +did_set_buftype(optset_T *args UNUSED) +{ + if (check_opt_strings(curbuf->b_p_bt, p_buftype_values, FALSE) != OK) + return e_invalid_argument; + + if (curwin->w_status_height) + { + curwin->w_redr_status = TRUE; + redraw_later(UPD_VALID); + } + curbuf->b_help = (curbuf->b_p_bt[0] == 'h'); + redraw_titles(); + + return NULL; +} + + int +expand_set_buftype(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_buftype_values, + ARRAY_LENGTH(p_buftype_values) - 1, + numMatches, + matches); +} + +/* + * The 'casemap' option is changed. + */ + char * +did_set_casemap(optset_T *args UNUSED) +{ + return did_set_opt_flags(p_cmp, p_cmp_values, &cmp_flags, TRUE); +} + + int +expand_set_casemap(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_cmp_values, + ARRAY_LENGTH(p_cmp_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_CLIPBOARD) || defined(PROTO) + int +expand_set_clipboard(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_cb_values, + ARRAY_LENGTH(p_cb_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The global 'listchars' or 'fillchars' option is changed. + */ + static char * +did_set_global_listfillchars(char_u *val, int opt_lcs, int opt_flags) +{ + char *errmsg = NULL; + char_u **local_ptr = opt_lcs ? &curwin->w_p_lcs : &curwin->w_p_fcs; + + // only apply the global value to "curwin" when it does not have a + // local value + if (opt_lcs) + errmsg = set_listchars_option(curwin, val, + **local_ptr == NUL || !(opt_flags & OPT_GLOBAL)); + else + errmsg = set_fillchars_option(curwin, val, + **local_ptr == NUL || !(opt_flags & OPT_GLOBAL)); + if (errmsg != NULL) + return errmsg; + + tabpage_T *tp; + win_T *wp; + + // 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; +} + +/* + * The 'fillchars' option or the 'listchars' option is changed. + */ + char * +did_set_chars_option(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char *errmsg = NULL; + + if ( varp == &p_lcs // global 'listchars' + || varp == &p_fcs) // global 'fillchars' + errmsg = did_set_global_listfillchars(*varp, varp == &p_lcs, + args->os_flags); + else if (varp == &curwin->w_p_lcs) // local 'listchars' + errmsg = set_listchars_option(curwin, *varp, TRUE); + else if (varp == &curwin->w_p_fcs) // local 'fillchars' + errmsg = set_fillchars_option(curwin, *varp, TRUE); + + return errmsg; +} + +/* + * Expand 'fillchars' or 'listchars' option value. + */ + int +expand_set_chars_option(optexpand_T *args, int *numMatches, char_u ***matches) +{ + char_u **varp = (char_u **)args->oe_varp; + int is_lcs = (varp == &p_lcs || varp == &curwin->w_p_lcs); + return expand_set_opt_generic( + args, + is_lcs ? get_listchars_name : get_fillchars_name, + numMatches, + matches); +} + +/* + * The 'cinoptions' option is changed. + */ + char * +did_set_cinoptions(optset_T *args UNUSED) +{ + // TODO: recognize errors + parse_cino(curbuf); + + return NULL; +} + +#if defined(FEAT_SYN_HL) || defined(PROTO) +/* + * The 'colorcolumn' option is changed. + */ + char * +did_set_colorcolumn(optset_T *args UNUSED) +{ + return check_colorcolumn(curwin); +} +#endif + +/* + * The 'comments' option is changed. + */ + char * +did_set_comments(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *s; + char *errmsg = NULL; + + for (s = *varp; *s; ) + { + while (*s && *s != ':') + { + if (vim_strchr((char_u *)COM_ALL, *s) == NULL + && !VIM_ISDIGIT(*s) && *s != '-') + { + errmsg = illegal_char(args->os_errbuf, args->os_errbuflen, *s); + break; + } + ++s; + } + if (*s++ == NUL) + errmsg = e_missing_colon; + else if (*s == ',' || *s == NUL) + errmsg = e_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; +} + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * The 'commentstring' option is changed. + */ + char * +did_set_commentstring(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (**varp != NUL && strstr((char *)*varp, "%s") == NULL) + return e_commentstring_must_be_empty_or_contain_str; + + return NULL; +} +#endif + +/* + * The 'complete' option is changed. + */ + char * +did_set_complete(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *s; + + // check if it is a valid value for 'complete' -- Acevedo + for (s = *varp; *s;) + { + while (*s == ',' || *s == ' ') + s++; + if (!*s) + break; + if (vim_strchr((char_u *)".wbuksid]tU", *s) == NULL) + return illegal_char(args->os_errbuf, args->os_errbuflen, *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((char *)args->os_errbuf, args->os_errbuflen, + _(e_illegal_character_after_chr), *--s); + return args->os_errbuf; + } + return ""; + } + } + } + + return NULL; +} + + int +expand_set_complete(optexpand_T *args, int *numMatches, char_u ***matches) +{ + static char *(p_cpt_values[]) = { + ".", "w", "b", "u", "k", "kspell", "s", "i", "d", "]", "t", "U", + NULL}; + return expand_set_opt_string( + args, + p_cpt_values, + ARRAY_LENGTH(p_cpt_values) - 1, + numMatches, + matches); +} + +/* + * The 'completeopt' option is changed. + */ + char * +did_set_completeopt(optset_T *args UNUSED) +{ + if (check_opt_strings(p_cot, p_cot_values, TRUE) != OK) + return e_invalid_argument; + + completeopt_was_set(); + return NULL; +} + + int +expand_set_completeopt(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_cot_values, + ARRAY_LENGTH(p_cot_values) - 1, + numMatches, + matches); +} + +#if (defined(FEAT_PROP_POPUP) && defined(FEAT_QUICKFIX)) || defined(PROTO) +/* + * The 'completepopup' option is changed. + */ + char * +did_set_completepopup(optset_T *args UNUSED) +{ + if (parse_completepopup(NULL) == FAIL) + return e_invalid_argument; + + popup_close_info(); + return NULL; +} +#endif + +#if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) +/* + * The 'completeslash' option is changed. + */ + char * +did_set_completeslash(optset_T *args UNUSED) +{ + if (check_opt_strings(p_csl, p_csl_values, FALSE) != OK + || check_opt_strings(curbuf->b_p_csl, p_csl_values, FALSE) != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_completeslash(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_csl_values, + ARRAY_LENGTH(p_csl_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_CONCEAL) || defined(PROTO) +/* + * The 'concealcursor' option is changed. + */ + char * +did_set_concealcursor(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_option_listflag(*varp, (char_u *)COCU_ALL, args->os_errbuf, + args->os_errbuflen); +} + + int +expand_set_concealcursor(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)COCU_ALL, numMatches, matches); +} +#endif + +/* + * The 'cpoptions' option is changed. + */ + char * +did_set_cpoptions(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_option_listflag(*varp, (char_u *)CPO_ALL, args->os_errbuf, + args->os_errbuflen); +} + + int +expand_set_cpoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)CPO_ALL, numMatches, matches); +} + +#if defined(FEAT_CRYPT) || defined(PROTO) +/* + * The 'cryptkey' option is changed. + */ + char * +did_set_cryptkey(optset_T *args) +{ + // Make sure the ":set" command doesn't show the new value in the + // history. + remove_key_from_history(); + + if (args->os_op != OP_NONE) + // Don't allow set+=/-=/^= as they can allow for substring guessing + return e_invalid_argument; + + if (STRCMP(curbuf->b_p_key, args->os_oldval.string) != 0) + { + // Need to update the swapfile. + ml_set_crypt_key(curbuf, args->os_oldval.string, + *curbuf->b_p_cm == NUL ? p_cm : curbuf->b_p_cm); + changed_internal(); + } +# ifdef FEAT_SODIUM + if (crypt_method_is_sodium(crypt_get_method_nr(curbuf))) + crypt_sodium_lock_key(args->os_newval.string); +# endif + + return NULL; +} + +/* + * The 'cryptmethod' option is changed. + */ + char * +did_set_cryptmethod(optset_T *args) +{ + char_u *p; + char_u *s; + + if (args->os_flags & OPT_LOCAL) + p = curbuf->b_p_cm; + else + p = p_cm; + if (check_opt_strings(p, p_cm_values, TRUE) != OK) + return e_invalid_argument; + else if (crypt_self_test() == FAIL) + return e_invalid_argument; + + // When setting the global value to empty, make it "zip". + if (*p_cm == NUL) + { + free_string_option(p_cm); + p_cm = vim_strsave((char_u *)"zip"); + } + // When using ":set cm=name" the local value is going to be empty. + // Do that here, otherwise the crypt functions will still use the + // local value. + if ((args->os_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) + { + free_string_option(curbuf->b_p_cm); + curbuf->b_p_cm = empty_option; + } + + // Need to update the swapfile when the effective method changed. + // Set "s" to the effective old value, "p" to the effective new + // method and compare. + if ((args->os_flags & OPT_LOCAL) && *args->os_oldval.string == NUL) + s = p_cm; // was previously using the global value + else + s = args->os_oldval.string; + if (*curbuf->b_p_cm == NUL) + p = p_cm; // is now using the global value + else + p = curbuf->b_p_cm; + if (STRCMP(s, p) != 0) + ml_set_crypt_key(curbuf, curbuf->b_p_key, s); + + // If the global value changes need to update the swapfile for all + // buffers using that value. + if ((args->os_flags & OPT_GLOBAL) + && STRCMP(p_cm, args->os_oldval.string) != 0) + { + buf_T *buf; + + FOR_ALL_BUFFERS(buf) + if (buf != curbuf && *buf->b_p_cm == NUL) + ml_set_crypt_key(buf, buf->b_p_key, args->os_oldval.string); + } + return NULL; +} + + int +expand_set_cryptmethod(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_cm_values, + ARRAY_LENGTH(p_cm_values) - 1, + numMatches, + matches); +} +#endif + +#if (defined(FEAT_CSCOPE) && defined(FEAT_QUICKFIX)) || defined(PROTO) +/* + * The 'cscopequickfix' option is changed. + */ + char * +did_set_cscopequickfix(optset_T *args UNUSED) +{ + char_u *p; + + if (p_csqf == NULL) + return NULL; + + p = p_csqf; + while (*p != NUL) + { + if (vim_strchr((char_u *)CSQF_CMDS, *p) == NULL + || p[1] == NUL + || vim_strchr((char_u *)CSQF_FLAGS, p[1]) == NULL + || (p[2] != NUL && p[2] != ',')) + return e_invalid_argument; + else if (p[2] == NUL) + break; + else + p += 3; + } + + return NULL; +} +#endif + +#if defined(FEAT_SYN_HL) || defined(PROTO) +/* + * The 'cursorlineopt' option is changed. + */ + char * +did_set_cursorlineopt(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + // This could be changed to use opt_strings_flags() instead. + if (**varp == NUL || fill_culopt_flags(*varp, curwin) != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_cursorlineopt(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_culopt_values, + ARRAY_LENGTH(p_culopt_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'debug' option is changed. + */ + char * +did_set_debug(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_debug, p_debug_values, TRUE); +} + + int +expand_set_debug(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_debug_values, + ARRAY_LENGTH(p_debug_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_DIFF) || defined(PROTO) +/* + * The 'diffopt' option is changed. + */ + char * +did_set_diffopt(optset_T *args UNUSED) +{ + if (diffopt_changed() == FAIL) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_diffopt(optexpand_T *args, int *numMatches, char_u ***matches) +{ + expand_T *xp = args->oe_xp; + + if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':') + { + // Within "algorithm:", we have a subgroup of possible options. + int algo_len = (int)STRLEN("algorithm:"); + if (xp->xp_pattern - args->oe_set_arg >= algo_len && + STRNCMP(xp->xp_pattern - algo_len, "algorithm:", algo_len) == 0) + { + return expand_set_opt_string( + args, + p_dip_algorithm_values, + ARRAY_LENGTH(p_dip_algorithm_values) - 1, + numMatches, + matches); + } + return FAIL; + } + + return expand_set_opt_string( + args, + p_dip_values, + ARRAY_LENGTH(p_dip_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'display' option is changed. + */ + char * +did_set_display(optset_T *args UNUSED) +{ + if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, TRUE) != OK) + return e_invalid_argument; + + (void)init_chartab(); + return NULL; +} + + int +expand_set_display(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_dy_values, + ARRAY_LENGTH(p_dy_values) - 1, + numMatches, + matches); +} + +/* + * The 'eadirection' option is changed. + */ + char * +did_set_eadirection(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_ead, p_ead_values, FALSE); +} + + int +expand_set_eadirection(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ead_values, + ARRAY_LENGTH(p_ead_values) - 1, + numMatches, + matches); +} + +/* + * One of the 'encoding', 'fileencoding', 'termencoding' or 'makeencoding' + * options is changed. + */ + char * +did_set_encoding(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u **gvarp; + char *errmsg = NULL; + char_u *p; + + // Get the global option to compare with, otherwise we would have to check + // two values for all local options. + gvarp = (char_u **)get_option_varp_scope(args->os_idx, OPT_GLOBAL); + + if (gvarp == &p_fenc) + { + if (!curbuf->b_p_ma && args->os_flags != OPT_GLOBAL) + errmsg = e_cannot_make_changes_modifiable_is_off; + else if (vim_strchr(*varp, ',') != NULL) + // No comma allowed in 'fileencoding'; catches confusing it + // with 'fileencodings'. + errmsg = e_invalid_argument; + else + { + // May show a "+" in the title now. + redraw_titles(); + // Add 'fileencoding' to the swap file. + ml_setflags(curbuf); + } + } + if (errmsg == NULL) + { + // canonize the value, so that STRCMP() can be used on it + p = enc_canonize(*varp); + if (p != NULL) + { + vim_free(*varp); + *varp = p; + } + if (varp == &p_enc) + { + errmsg = mb_init(); + redraw_titles(); + } + } + +#if defined(FEAT_GUI_GTK) + if (errmsg == NULL && varp == &p_tenc && gui.in_use) + { + // GTK uses only a single encoding, and that is UTF-8. + if (STRCMP(p_tenc, "utf-8") != 0) + errmsg = e_cannot_be_changed_in_gtk_GUI; + } +#endif + + if (errmsg == NULL) + { +#ifdef FEAT_KEYMAP + // When 'keymap' is used and 'encoding' changes, reload the keymap + // (with another encoding). + if (varp == &p_enc && *curbuf->b_p_keymap != NUL) + (void)keymap_init(); +#endif + + // When 'termencoding' is not empty and 'encoding' changes or when + // 'termencoding' changes, need to setup for keyboard input and + // display output conversion. + if (((varp == &p_enc && *p_tenc != NUL) || varp == &p_tenc)) + { + if (convert_setup(&input_conv, p_tenc, p_enc) == FAIL + || convert_setup(&output_conv, p_enc, p_tenc) == FAIL) + { + semsg(_(e_cannot_convert_between_str_and_str), + p_tenc, p_enc); + errmsg = e_invalid_argument; + } + } + +#if defined(MSWIN) + // $HOME, $VIM and $VIMRUNTIME may have characters in active code page. + if (varp == &p_enc) + { + init_homedir(); + init_vimdir(); + } +#endif + } + + return errmsg; +} + + int +expand_set_encoding(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_generic( + args, + get_encoding_name, + numMatches, + matches); +} + +/* + * The 'eventignore' option is changed. + */ + char * +did_set_eventignore(optset_T *args UNUSED) +{ + if (check_ei() == FAIL) + return e_invalid_argument; + return NULL; +} + + static char_u * +get_eventignore_name(expand_T *xp, int idx) +{ + // 'eventignore' allows special keyword "all" in addition to + // all event names. + if (idx == 0) + return (char_u *)"all"; + return get_event_name_no_group(xp, idx - 1); +} + + int +expand_set_eventignore(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_generic( + args, + get_eventignore_name, + numMatches, + matches); +} + +/* + * The 'fileformat' option is changed. + */ + char * +did_set_fileformat(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (!curbuf->b_p_ma && !(args->os_flags & OPT_GLOBAL)) + return e_cannot_make_changes_modifiable_is_off; + else if (check_opt_strings(*varp, p_ff_values, FALSE) != OK) + return e_invalid_argument; + + // may also change 'textmode' + if (get_fileformat(curbuf) == EOL_DOS) + curbuf->b_p_tx = TRUE; + else + curbuf->b_p_tx = FALSE; + redraw_titles(); + // update flag in swap file + ml_setflags(curbuf); + // Redraw needed when switching to/from "mac": a CR in the text + // will be displayed differently. + if (get_fileformat(curbuf) == EOL_MAC || *args->os_oldval.string == 'm') + redraw_curbuf_later(UPD_NOT_VALID); + + return NULL; +} + + int +expand_set_fileformat(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ff_values, + ARRAY_LENGTH(p_ff_values) - 1, + numMatches, + matches); +} + +/* + * Function given to ExpandGeneric() to obtain the possible arguments of the + * fileformat options. + */ + char_u * +get_fileformat_name(expand_T *xp UNUSED, int idx) +{ + if (idx >= (int)ARRAY_LENGTH(p_ff_values)) + return NULL; + + return (char_u*)p_ff_values[idx]; +} + +/* + * The 'fileformats' option is changed. + */ + char * +did_set_fileformats(optset_T *args UNUSED) +{ + if (check_opt_strings(p_ffs, p_ff_values, TRUE) != OK) + return e_invalid_argument; + + // also change 'textauto' + if (*p_ffs == NUL) + p_ta = FALSE; + else + p_ta = TRUE; + + return NULL; +} + +/* + * The 'filetype' or the 'syntax' option is changed. + */ + char * +did_set_filetype_or_syntax(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (!valid_filetype(*varp)) + return e_invalid_argument; + + 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; +} + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * The 'foldclose' option is changed. + */ + char * +did_set_foldclose(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_fcl, p_fcl_values, TRUE); +} + + int +expand_set_foldclose(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_fcl_values, + ARRAY_LENGTH(p_fcl_values) - 1, + numMatches, + matches); +} +#endif + +#if (defined(FEAT_EVAL) && defined(FEAT_FOLDING)) || defined(PROTO) +/* + * The 'foldexpr' option is changed. + */ + char * +did_set_foldexpr(optset_T *args) +{ + (void)did_set_optexpr(args); + if (foldmethodIsExpr(curwin)) + foldUpdateAll(curwin); + return NULL; +} +#endif + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * The 'foldignore' option is changed. + */ + char * +did_set_foldignore(optset_T *args UNUSED) +{ + if (foldmethodIsIndent(curwin)) + foldUpdateAll(curwin); + return NULL; +} + +/* + * The 'foldmarker' option is changed. + */ + char * +did_set_foldmarker(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *p; + + p = vim_strchr(*varp, ','); + if (p == NULL) + return e_comma_required; + else if (p == *varp || p[1] == NUL) + return e_invalid_argument; + else if (foldmethodIsMarker(curwin)) + foldUpdateAll(curwin); + + return NULL; +} + +/* + * The 'foldmethod' option is changed. + */ + char * +did_set_foldmethod(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (check_opt_strings(*varp, p_fdm_values, FALSE) != OK + || *curwin->w_p_fdm == NUL) + return e_invalid_argument; + + foldUpdateAll(curwin); + if (foldmethodIsDiff(curwin)) + newFoldLevel(); + return NULL; +} + + int +expand_set_foldmethod(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_fdm_values, + ARRAY_LENGTH(p_fdm_values) - 1, + numMatches, + matches); +} + +/* + * The 'foldopen' option is changed. + */ + char * +did_set_foldopen(optset_T *args UNUSED) +{ + return did_set_opt_flags(p_fdo, p_fdo_values, &fdo_flags, TRUE); +} + + int +expand_set_foldopen(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_fdo_values, + ARRAY_LENGTH(p_fdo_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'formatoptions' option is changed. + */ + char * +did_set_formatoptions(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_option_listflag(*varp, (char_u *)FO_ALL, args->os_errbuf, + args->os_errbuflen); +} + + int +expand_set_formatoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)FO_ALL, numMatches, matches); +} + +#if defined(CURSOR_SHAPE) || defined(PROTO) +/* + * The 'guicursor' option is changed. + */ + char * +did_set_guicursor(optset_T *args UNUSED) +{ + return parse_shape_opt(SHAPE_CURSOR); +} +#endif + +#if defined(FEAT_GUI) || defined(PROTO) +/* + * The 'guifont' option is changed. + */ + char * +did_set_guifont(optset_T *args UNUSED) +{ + char_u *p; + char *errmsg = NULL; + + if (gui.in_use) + { + p = p_guifont; +# if defined(FEAT_GUI_GTK) + // Put up a font dialog and let the user select a new value. + // If this is cancelled go back to the old value but don't + // give an error message. + if (STRCMP(p, "*") == 0) + { + p = gui_mch_font_dialog(args->os_oldval.string); + free_string_option(p_guifont); + p_guifont = (p != NULL) ? p : vim_strsave(args->os_oldval.string); + } +# endif + if (p != NULL && gui_init_font(p_guifont, FALSE) != OK) + { +# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_PHOTON) + if (STRCMP(p_guifont, "*") == 0) + { + // Dialog was cancelled: Keep the old value without giving + // an error message. + free_string_option(p_guifont); + p_guifont = vim_strsave(args->os_oldval.string); + } + else +# endif + errmsg = e_invalid_fonts; + } + } + + return errmsg; +} + +/* + * Expand the 'guifont' option. Only when GUI is being used. Each platform has + * specific behaviors. + */ + int +expand_set_guifont(optexpand_T *args, int *numMatches, char_u ***matches) +{ + if (!gui.in_use) + return FAIL; + +# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) + char_u **varp = (char_u **)args->oe_varp; + int wide = (varp == &p_guifontwide); + + return expand_set_opt_callback( + args, gui_mch_expand_font, &wide, numMatches, matches); +# else + return FAIL; +# endif +} + +# if defined(FEAT_XFONTSET) || defined(PROTO) +/* + * The 'guifontset' option is changed. + */ + char * +did_set_guifontset(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (STRCMP(p_guifontset, "*") == 0) + errmsg = e_cant_select_fontset; + else if (gui.in_use && gui_init_font(p_guifontset, TRUE) != OK) + errmsg = e_invalid_fontset; + + return errmsg; +} +# endif + +/* + * The 'guifontwide' option is changed. + */ + char * +did_set_guifontwide(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (STRCMP(p_guifontwide, "*") == 0) + errmsg = e_cant_select_wide_font; + else if (gui_get_wide_font() == FAIL) + errmsg = e_invalid_wide_font; + + return errmsg; +} +#endif + +#if defined(FEAT_GUI_GTK) || defined(PROTO) +/* + * The 'guiligatures' option is changed. + */ + char * +did_set_guiligatures(optset_T *args UNUSED) +{ + gui_set_ligatures(); + return NULL; +} +#endif + +#if defined(FEAT_GUI) || defined(PROTO) +/* + * The 'guioptions' option is changed. + */ + char * +did_set_guioptions(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char *errmsg; + + errmsg = did_set_option_listflag(*varp, (char_u *)GO_ALL, args->os_errbuf, + args->os_errbuflen); + if (errmsg != NULL) + return errmsg; + + gui_init_which_components(args->os_oldval.string); + return NULL; +} + + int +expand_set_guioptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)GO_ALL, numMatches, matches); +} +#endif + +#if defined(FEAT_GUI_TABLINE) || defined(PROTO) +/* + * The 'guitablabel' option is changed. + */ + char * +did_set_guitablabel(optset_T *args UNUSED) +{ + redraw_tabline = TRUE; + return NULL; +} +#endif + +/* + * The 'helpfile' option is changed. + */ + char * +did_set_helpfile(optset_T *args UNUSED) +{ + // May compute new values for $VIM and $VIMRUNTIME + if (didset_vim) + vim_unsetenv_ext((char_u *)"VIM"); + if (didset_vimruntime) + vim_unsetenv_ext((char_u *)"VIMRUNTIME"); + return NULL; +} + +#if defined(FEAT_MULTI_LANG) || defined(PROTO) +/* + * The 'helplang' option is changed. + */ + char * +did_set_helplang(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + // Check for "", "ab", "ab,cd", etc. + for (char_u *s = p_hlg; *s != NUL; s += 3) + { + if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL)) + { + errmsg = e_invalid_argument; + break; + } + if (s[2] == NUL) + break; + } + + return errmsg; +} +#endif + +/* + * The 'highlight' option is changed. + */ + char * +did_set_highlight(optset_T *args UNUSED) +{ + if (highlight_changed() == FAIL) + return e_invalid_argument; // invalid flags + + return NULL; +} + +/* + * Expand 'highlight' option. + */ + int +expand_set_highlight(optexpand_T *args, int *numMatches, char_u ***matches) +{ + char_u *p; + expand_T *xp = args->oe_xp; + static char_u hl_flags[HLF_COUNT] = HL_FLAGS; + size_t i; + int count = 0; + + if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':') + { + // Right after a ':', meaning we just return all highlight names. + return expand_set_opt_generic( + args, + get_highlight_name, + numMatches, + matches); + } + + if (*xp->xp_pattern == NUL) + { + // At beginning of a comma-separated list. Return the specific list of + // supported occasions. + *matches = ALLOC_MULT(char_u *, HLF_COUNT + 1); + if (*matches == NULL) + return FAIL; + + // We still want to return the full option if it's requested. + if (args->oe_include_orig_val) + { + p = vim_strsave(args->oe_opt_value); + if (p == NULL) + { + VIM_CLEAR(*matches); + return FAIL; + } + (*matches)[count++] = p; + } + + for (i = 0; i < HLF_COUNT; i++) + { + p = vim_strnsave(&hl_flags[i], 1); + if (p == NULL) + { + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + else + break; + } + (*matches)[count++] = p; + } + + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + *numMatches = count; + return OK; + } + + // We are after the initial character (which indicates the occasion). We + // already made sure we are not matching after a ':' above, so now we want + // to match against display mode modifiers. + // Since the xp_pattern starts from the beginning, we need to include it in + // the returned match. + + // Note: Keep this in sync with highlight_changed() + static char_u p_hl_mode_values[] = + {':', 'b', 'i', '-', 'n', 'r', 's', 'u', 'c', '2', 'd', '=', 't'}; + size_t num_hl_modes = ARRAY_LENGTH(p_hl_mode_values); + + *matches = ALLOC_MULT(char_u *, num_hl_modes); + if (*matches == NULL) + return FAIL; + + int pattern_len = xp->xp_pattern_len; + + for (i = 0; i < num_hl_modes; i++) + { + // Don't allow duplicates as these are unique flags + char_u *dup = vim_strchr(xp->xp_pattern + 1, p_hl_mode_values[i]); + if (dup != NULL && (int)(dup - xp->xp_pattern) < pattern_len) + continue; + + // ':' only works by itself, not with other flags. + if (pattern_len > 1 && p_hl_mode_values[i] == ':') + continue; + + p = vim_strnsave(xp->xp_pattern, pattern_len + 1); + if (p == NULL) + { + if (i == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + else + break; + } + p[pattern_len] = p_hl_mode_values[i]; + p[pattern_len + 1] = NUL; + (*matches)[count++] = p; + } + if (count == 0) + { + VIM_CLEAR(*matches); + return FAIL; + } + *numMatches = count; + + return OK; +} + +/* + * The 'titlestring' or the 'iconstring' option is changed. + */ + static char * +parse_titleiconstring(optset_T *args UNUSED, int flagval UNUSED) +{ +#ifdef FEAT_STL_OPT + char_u **varp = (char_u **)args->os_varp; + + // NULL => statusline syntax + if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL) + stl_syntax |= flagval; + else + stl_syntax &= ~flagval; +#endif + did_set_title(); + + return NULL; +} + +/* + * The 'iconstring' option is changed. + */ + char * +did_set_iconstring(optset_T *args) +{ + int flagval = 0; + +#ifdef FEAT_STL_OPT + flagval = STL_IN_ICON; +#endif + + return parse_titleiconstring(args, flagval); +} + +#if (defined(FEAT_XIM) && defined(FEAT_GUI_GTK)) || defined(PROTO) +/* + * The 'imactivatekey' option is changed. + */ + char * +did_set_imactivatekey(optset_T *args UNUSED) +{ + if (!im_xim_isvalid_imactivate()) + return e_invalid_argument; + return NULL; +} +#endif + +/* + * The 'isident' or the 'iskeyword' or the 'isprint' or the 'isfname' option is + * changed. + */ + char * +did_set_isopt(optset_T *args) +{ + // '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 (init_chartab() == FAIL) + { + args->os_restore_chartab = TRUE;// need to restore the chartab. + return e_invalid_argument; // error in value + } + + return NULL; +} + +/* + * The 'jumpoptions' option is changed. + */ + char * +did_set_jumpoptions(optset_T *args UNUSED) +{ + if (opt_strings_flags(p_jop, p_jop_values, &jop_flags, TRUE) != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_jumpoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_jop_values, + ARRAY_LENGTH(p_jop_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_KEYMAP) || defined(PROTO) +/* + * The 'keymap' option is changed. + */ + char * +did_set_keymap(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char *errmsg = NULL; + + if (!valid_filetype(*varp)) + errmsg = e_invalid_argument; + else + { + 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 + 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 (*curbuf->b_p_keymap != NUL) + { + // Installed a new keymap, switch on using it. + curbuf->b_p_iminsert = B_IMODE_LMAP; + if (curbuf->b_p_imsearch != B_IMODE_USE_INSERT) + curbuf->b_p_imsearch = B_IMODE_LMAP; + } + else + { + // Cleared the keymap, may reset 'iminsert' and 'imsearch'. + if (curbuf->b_p_iminsert == B_IMODE_LMAP) + curbuf->b_p_iminsert = B_IMODE_NONE; + if (curbuf->b_p_imsearch == B_IMODE_LMAP) + curbuf->b_p_imsearch = B_IMODE_USE_INSERT; + } + if ((args->os_flags & OPT_LOCAL) == 0) + { + set_iminsert_global(); + set_imsearch_global(); + } + status_redraw_curbuf(); + } + + return errmsg; +} +#endif + +/* + * The 'keymodel' option is changed. + */ + char * +did_set_keymodel(optset_T *args UNUSED) +{ + if (check_opt_strings(p_km, p_km_values, TRUE) != OK) + return e_invalid_argument; + + km_stopsel = (vim_strchr(p_km, 'o') != NULL); + km_startsel = (vim_strchr(p_km, 'a') != NULL); + return NULL; +} + + int +expand_set_keymodel(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_km_values, + ARRAY_LENGTH(p_km_values) - 1, + numMatches, + matches); +} + +/* + * The 'keyprotocol' option is changed. + */ + char * +did_set_keyprotocol(optset_T *args UNUSED) +{ + char_u *term = T_NAME; + keyprot_T kpc = match_keyprotocol(term); + if (kpc == KEYPROTOCOL_FAIL) + return e_invalid_argument; + + apply_keyprotocol(term, kpc); + + return NULL; +} + + int +expand_set_keyprotocol(optexpand_T *args, int *numMatches, char_u ***matches) +{ + expand_T *xp = args->oe_xp; + if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':') + { + // 'keyprotocol' only has well-defined terms for completion for the + // protocol part after the colon. + return expand_set_opt_string( + args, + p_kpc_protocol_values, + ARRAY_LENGTH(p_kpc_protocol_values) - 1, + numMatches, + matches); + } + // Use expand_set_opt_string instead of returning FAIL so that we can + // include the original value if args->oe_include_orig_val is set. + static char *(empty[]) = {NULL}; + return expand_set_opt_string(args, empty, 0, numMatches, matches); +} + +/* + * The 'lispoptions' option is changed. + */ + char * +did_set_lispoptions(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (**varp != NUL + && STRCMP(*varp, "expr:0") != 0 + && STRCMP(*varp, "expr:1") != 0) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_lispoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + static char *(p_lop_values[]) = {"expr:0", "expr:1", NULL}; + return expand_set_opt_string( + args, + p_lop_values, + ARRAY_LENGTH(p_lop_values) - 1, + numMatches, + matches); +} + +/* + * The 'matchpairs' option is changed. + */ + char * +did_set_matchpairs(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *p; + + if (has_mbyte) + { + for (p = *varp; *p != NUL; ++p) + { + int x2 = -1; + int x3 = -1; + + p += mb_ptr2len(p); + if (*p != NUL) + x2 = *p++; + if (*p != NUL) + { + x3 = mb_ptr2char(p); + p += mb_ptr2len(p); + } + if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ',')) + return e_invalid_argument; + if (*p == NUL) + break; + } + } + else + { + // Check for "x:y,x:y" + for (p = *varp; *p != NUL; p += 4) + { + if (p[1] != ':' || p[2] == NUL || (p[3] != NUL && p[3] != ',')) + return e_invalid_argument; + if (p[3] == NUL) + break; + } + } + + return NULL; +} + +#if defined(FEAT_SPELL) || defined(PROTO) +/* + * The 'mkspellmem' option is changed. + */ + char * +did_set_mkspellmem(optset_T *args UNUSED) +{ + if (spell_check_msm() != OK) + return e_invalid_argument; + + return NULL; +} +#endif + +/* + * The 'mouse' option is changed. + */ + char * +did_set_mouse(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_option_listflag(*varp, (char_u *)MOUSE_ALL, args->os_errbuf, + args->os_errbuflen); +} + + int +expand_set_mouse(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)MOUSE_ALL, numMatches, matches); +} + +/* + * The 'mousemodel' option is changed. + */ + char * +did_set_mousemodel(optset_T *args UNUSED) +{ + if (check_opt_strings(p_mousem, p_mousem_values, FALSE) != OK) + return e_invalid_argument; +#if defined(FEAT_GUI_MOTIF) && defined(FEAT_MENU) && (XmVersion <= 1002) + else if (*p_mousem != *args->os_oldval.string) + // Changed from "extend" to "popup" or "popup_setpos" or vv: need + // to create or delete the popup menus. + gui_motif_update_mousemodel(root_menu); +#endif + + return NULL; +} + + int +expand_set_mousemodel(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_mousem_values, + ARRAY_LENGTH(p_mousem_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_MOUSESHAPE) || defined(PROTO) + char * +did_set_mouseshape(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + errmsg = parse_shape_opt(SHAPE_MOUSE); + update_mouseshape(-1); + + return errmsg; +} +#endif + +/* + * The 'nrformats' option is changed. + */ + char * +did_set_nrformats(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_opt_strings(*varp, p_nf_values, TRUE); +} + + int +expand_set_nrformats(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_nf_values, + ARRAY_LENGTH(p_nf_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_EVAL) || defined(PROTO) +/* + * One of the '*expr' options is changed: 'balloonexpr', 'diffexpr', + * 'foldexpr', 'foldtext', 'formatexpr', 'includeexpr', 'indentexpr', + * 'patchexpr', 'printexpr' and 'charconvert'. + * + */ + char * +did_set_optexpr(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + // If the option value starts with <SID> or s:, then replace that with + // the script identifier. + char_u *name = get_scriptlocal_funcname(*varp); + if (name != NULL) + { + free_string_option(*varp); + *varp = name; + } + + return NULL; +} +#endif + +/* + * The 'pastetoggle' option is changed. + */ + char * +did_set_pastetoggle(optset_T *args UNUSED) +{ + char_u *p; + + // translate key codes like in a mapping + if (*p_pt) + { + (void)replace_termcodes(p_pt, &p, 0, + REPTERM_FROM_PART | REPTERM_DO_LT, NULL); + if (p != NULL) + { + free_string_option(p_pt); + p_pt = p; + } + } + + return NULL; +} + +#if defined(FEAT_PROP_POPUP) || defined(PROTO) +/* + * The 'previewpopup' option is changed. + */ + char * +did_set_previewpopup(optset_T *args UNUSED) +{ + if (parse_previewpopup(NULL) == FAIL) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_popupoption(optexpand_T *args, int *numMatches, char_u ***matches) +{ + expand_T *xp = args->oe_xp; + + if (xp->xp_pattern > args->oe_set_arg && *(xp->xp_pattern-1) == ':') + { + // Within "highlight:"/"border:"/"align:", we have a subgroup of possible options. + int border_len = (int)STRLEN("border:"); + if (xp->xp_pattern - args->oe_set_arg >= border_len && + STRNCMP(xp->xp_pattern - border_len, "border:", border_len) == 0) + { + return expand_set_opt_string( + args, + p_popup_option_border_values, + ARRAY_LENGTH(p_popup_option_border_values) - 1, + numMatches, + matches); + } + int align_len = (int)STRLEN("align:"); + if (xp->xp_pattern - args->oe_set_arg >= align_len && + STRNCMP(xp->xp_pattern - align_len, "align:", align_len) == 0) + { + return expand_set_opt_string( + args, + p_popup_option_align_values, + ARRAY_LENGTH(p_popup_option_align_values) - 1, + numMatches, + matches); + } + int highlight_len = (int)STRLEN("highlight:"); + if (xp->xp_pattern - args->oe_set_arg >= highlight_len && + STRNCMP(xp->xp_pattern - highlight_len, "highlight:", highlight_len) == 0) + { + // Return the list of all highlight names + return expand_set_opt_generic( + args, + get_highlight_name, + numMatches, + matches); + } + return FAIL; + } + + return expand_set_opt_string( + args, + p_popup_option_values, + ARRAY_LENGTH(p_popup_option_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_POSTSCRIPT) || defined(PROTO) +/* + * The 'printencoding' option is changed. + */ + char * +did_set_printencoding(optset_T *args UNUSED) +{ + char_u *s, *p; + + // Canonize 'printencoding' if VIM standard one + p = enc_canonize(p_penc); + if (p != NULL) + { + vim_free(p_penc); + p_penc = p; + } + else + { + // Ensure lower case and '-' for '_' + for (s = p_penc; *s != NUL; s++) + { + if (*s == '_') + *s = '-'; + else + *s = TOLOWER_ASC(*s); + } + } + + return NULL; +} +#endif + +#if defined(FEAT_PRINTER) || defined(PROTO) + + static char_u * +get_printoptions_names(expand_T *xp UNUSED, int idx) +{ + if (idx >= (int)ARRAY_LENGTH(printer_opts)) + return NULL; + return (char_u*)printer_opts[idx].name; +} + +/* + * Expand 'printoptions' option + */ + int +expand_set_printoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_generic( + args, + get_printoptions_names, + numMatches, + matches); +} +#endif + +#if defined(FEAT_STL_OPT) || defined(PROTO) +/* + * The 'statusline' or the 'tabline' or the 'rulerformat' option is changed. + * "rulerformat" is TRUE if the 'rulerformat' option is changed. + */ + static char * +parse_statustabline_rulerformat(optset_T *args, int rulerformat) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *s; + char *errmsg = NULL; + int wid; + + if (rulerformat) // reset ru_wid first + ru_wid = 0; + s = *varp; + if (rulerformat && *s == '%') + { + // set ru_wid if 'ruf' starts with "%99(" + if (*++s == '-') // ignore a '-' + s++; + wid = getdigits(&s); + if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL) + ru_wid = wid; + else + errmsg = check_stl_option(p_ruf); + } + // check 'statusline' or 'tabline' only if it doesn't start with "%!" + else if (rulerformat || s[0] != '%' || s[1] != '!') + errmsg = check_stl_option(s); + if (rulerformat && errmsg == NULL) + comp_col(); + + return errmsg; +} +#endif + +#if defined(FEAT_RENDER_OPTIONS) || defined(PROTO) +/* + * The 'renderoptions' option is changed. + */ + char * +did_set_renderoptions(optset_T *args UNUSED) +{ + if (!gui_mch_set_rendering_options(p_rop)) + return e_invalid_argument; + + return NULL; +} +#endif + +#if defined(FEAT_RIGHTLEFT) || defined(PROTO) +/* + * The 'rightleftcmd' option is changed. + */ + char * +did_set_rightleftcmd(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + // Currently only "search" is a supported value. + if (**varp != NUL && STRCMP(*varp, "search") != 0) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_rightleftcmd(optexpand_T *args, int *numMatches, char_u ***matches) +{ + static char *(p_rlc_values[]) = {"search", NULL}; + return expand_set_opt_string( + args, + p_rlc_values, + ARRAY_LENGTH(p_rlc_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_STL_OPT) || defined(PROTO) +/* + * The 'rulerformat' option is changed. + */ + char * +did_set_rulerformat(optset_T *args) +{ + return parse_statustabline_rulerformat(args, TRUE); +} +#endif + +/* + * The 'scrollopt' option is changed. + */ + char * +did_set_scrollopt(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_sbo, p_scbopt_values, TRUE); +} + + int +expand_set_scrollopt(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_scbopt_values, + ARRAY_LENGTH(p_scbopt_values) - 1, + numMatches, + matches); +} + +/* + * The 'selection' option is changed. + */ + char * +did_set_selection(optset_T *args UNUSED) +{ + if (*p_sel == NUL || check_opt_strings(p_sel, p_sel_values, FALSE) != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_selection(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_sel_values, + ARRAY_LENGTH(p_sel_values) - 1, + numMatches, + matches); +} + +/* + * The 'selectmode' option is changed. + */ + char * +did_set_selectmode(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_slm, p_slm_values, TRUE); +} + + int +expand_set_selectmode(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_slm_values, + ARRAY_LENGTH(p_slm_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_SESSION) || defined(PROTO) +/* + * The 'sessionoptions' option is changed. + */ + char * +did_set_sessionoptions(optset_T *args) +{ + if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, TRUE) != OK) + return e_invalid_argument; + if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR)) + { + // Don't allow both "sesdir" and "curdir". + (void)opt_strings_flags(args->os_oldval.string, p_ssop_values, + &ssop_flags, TRUE); + return e_invalid_argument; + } + + return NULL; +} + + int +expand_set_sessionoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ssop_values, + ARRAY_LENGTH(p_ssop_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'shortmess' option is changed. + */ + char * +did_set_shortmess(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + return did_set_option_listflag(*varp, (char_u *)SHM_ALL, args->os_errbuf, + args->os_errbuflen); +} + + int +expand_set_shortmess(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)SHM_ALL, numMatches, matches); +} + +#if defined(FEAT_LINEBREAK) || defined(PROTO) +/* + * The 'showbreak' option is changed. + */ + char * +did_set_showbreak(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *s; + + for (s = *varp; *s; ) + { + if (ptr2cells(s) != 1) + return e_showbreak_contains_unprintable_or_wide_character; + MB_PTR_ADV(s); + } + + return NULL; +} +#endif + +/* + * The 'showcmdloc' option is changed. + */ + char * +did_set_showcmdloc(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_sloc, p_sloc_values, FALSE); +} + + int +expand_set_showcmdloc(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_sloc_values, + ARRAY_LENGTH(p_sloc_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_SIGNS) || defined(PROTO) +/* + * The 'signcolumn' option is changed. + */ + char * +did_set_signcolumn(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (check_opt_strings(*varp, p_scl_values, FALSE) != OK) + return e_invalid_argument; + // When changing the 'signcolumn' to or from 'number', recompute the + // width of the number column if 'number' or 'relativenumber' is set. + if (((*args->os_oldval.string == 'n' && args->os_oldval.string[1] == 'u') + || (*curwin->w_p_scl == 'n' && *(curwin->w_p_scl + 1) =='u')) + && (curwin->w_p_nu || curwin->w_p_rnu)) + curwin->w_nrwidth_line_count = 0; + + return NULL; +} + + int +expand_set_signcolumn(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_scl_values, + ARRAY_LENGTH(p_scl_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_SPELL) || defined(PROTO) +/* + * The 'spellcapcheck' option is changed. + */ + char * +did_set_spellcapcheck(optset_T *args UNUSED) +{ + // compile the regexp program. + return compile_cap_prog(curwin->w_s); +} + +/* + * The 'spellfile' option is changed. + */ + char * +did_set_spellfile(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (!valid_spellfile(*varp)) + return e_invalid_argument; + + // If there is a window for this buffer in which 'spell' is set load the + // wordlists. + return did_set_spell_option(TRUE); +} + +/* + * The 'spell' option is changed. + */ + char * +did_set_spelllang(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (!valid_spelllang(*varp)) + return e_invalid_argument; + + // If there is a window for this buffer in which 'spell' is set load the + // wordlists. + return did_set_spell_option(FALSE); +} + +/* + * The 'spelloptions' option is changed. + */ + char * +did_set_spelloptions(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (**varp != NUL && STRCMP(*varp, "camel") != 0) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_spelloptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + static char *(p_spo_values[]) = {"camel", NULL}; + return expand_set_opt_string( + args, + p_spo_values, + ARRAY_LENGTH(p_spo_values) - 1, + numMatches, + matches); +} + +/* + * The 'spellsuggest' option is changed. + */ + char * +did_set_spellsuggest(optset_T *args UNUSED) +{ + if (spell_check_sps() != OK) + return e_invalid_argument; + + return NULL; +} + + int +expand_set_spellsuggest(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_sps_values, + ARRAY_LENGTH(p_sps_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'splitkeep' option is changed. + */ + char * +did_set_splitkeep(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_spk, p_spk_values, FALSE); +} + + int +expand_set_splitkeep(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_spk_values, + ARRAY_LENGTH(p_spk_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_STL_OPT) || defined(PROTO) +/* + * The 'statusline' option is changed. + */ + char * +did_set_statusline(optset_T *args) +{ + return parse_statustabline_rulerformat(args, FALSE); +} +#endif + +/* + * The 'swapsync' option is changed. + */ + char * +did_set_swapsync(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_sws, p_sws_values, FALSE); +} + + int +expand_set_swapsync(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_sws_values, + ARRAY_LENGTH(p_sws_values) - 1, + numMatches, + matches); +} + +/* + * The 'switchbuf' option is changed. + */ + char * +did_set_switchbuf(optset_T *args UNUSED) +{ + return did_set_opt_flags(p_swb, p_swb_values, &swb_flags, TRUE); +} + + int +expand_set_switchbuf(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_swb_values, + ARRAY_LENGTH(p_swb_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_STL_OPT) || defined(PROTO) +/* + * The 'tabline' option is changed. + */ + char * +did_set_tabline(optset_T *args) +{ + return parse_statustabline_rulerformat(args, FALSE); +} +#endif + +/* + * The 'tagcase' option is changed. + */ + char * +did_set_tagcase(optset_T *args) +{ + unsigned int *flags; + char_u *p; + + if (args->os_flags & OPT_LOCAL) + { + p = curbuf->b_p_tc; + flags = &curbuf->b_tc_flags; + } + else + { + p = p_tc; + flags = &tc_flags; + } + + if ((args->os_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_invalid_argument; + + return NULL; +} + + int +expand_set_tagcase(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_tc_values, + ARRAY_LENGTH(p_tc_values) - 1, + numMatches, + matches); +} + +/* + * The 'term' option is changed. + */ + char * +did_set_term(optset_T *args UNUSED) +{ + if (T_NAME[0] == NUL) + return e_cannot_set_term_to_empty_string; +#ifdef FEAT_GUI + if (gui.in_use) + return e_cannot_change_term_in_GUI; + if (term_is_gui(T_NAME)) + return e_use_gui_to_start_GUI; +#endif + if (set_termname(T_NAME) == FAIL) + return e_not_found_in_termcap; + + // Screen colors may have changed. + redraw_later_clear(); + + return NULL; +} + +/* + * Some terminal option (t_xxx) is changed + */ + char * +did_set_term_option(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + if (!full_screen) + return NULL; + + // ":set t_Co=0" and ":set t_Co=1" do ":set t_Co=" + if (varp == &T_CCO) + { + int colors = atoi((char *)T_CCO); + + // Only reinitialize colors if t_Co value has really changed to + // avoid expensive reload of colorscheme if t_Co is set to the + // same value multiple times. + if (colors != t_colors) + { + t_colors = colors; + if (t_colors <= 1) + { + vim_free(T_CCO); + T_CCO = empty_option; + } +#if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS) + if (is_term_win32()) + { + swap_tcap(); + args->os_did_swaptcap = TRUE; + } +#endif + // We now have a different color setup, initialize it again. + init_highlight(TRUE, FALSE); + } + } + ttest(FALSE); + if (varp == &T_ME) + { + out_str(T_ME); + redraw_later(UPD_CLEAR); +#if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL)) + // Since t_me has been set, this probably means that the user + // wants to use this as default colors. Need to reset default + // background/foreground colors. +# ifdef VIMDLL + if (!gui.in_use && !gui.starting) +# endif + mch_set_normal_colors(); +#endif + } + if (varp == &T_BE && termcap_active) + { + MAY_WANT_TO_LOG_THIS; + + if (*T_BE == NUL) + // When clearing t_BE we assume the user no longer wants + // bracketed paste, thus disable it by writing t_BD. + out_str(T_BD); + else + out_str(T_BE); + } + + return NULL; +} + +#if defined(FEAT_TERMINAL) || defined(PROTO) +/* + * The 'termwinkey' option is changed. + */ + char * +did_set_termwinkey(optset_T *args UNUSED) +{ + if (*curwin->w_p_twk != NUL && string_to_key(curwin->w_p_twk, TRUE) == 0) + return e_invalid_argument; + + return NULL; +} + +/* + * The 'termwinsize' option is changed. + */ + char * +did_set_termwinsize(optset_T *args UNUSED) +{ + char_u *p; + + if (*curwin->w_p_tws == NUL) + return NULL; + + p = skipdigits(curwin->w_p_tws); + if (p == curwin->w_p_tws + || (*p != 'x' && *p != '*') + || *skipdigits(p + 1) != NUL) + return e_invalid_argument; + + return NULL; +} + +# if defined(MSWIN) || defined(PROTO) +/* + * The 'termwintype' option is changed. + */ + char * +did_set_termwintype(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_twt, p_twt_values, FALSE); +} + + int +expand_set_termwintype(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_twt_values, + ARRAY_LENGTH(p_twt_values) - 1, + numMatches, + matches); +} +# endif +#endif + +/* + * The 'titlestring' option is changed. + */ + char * +did_set_titlestring(optset_T *args) +{ + int flagval = 0; + +#ifdef FEAT_STL_OPT + flagval = STL_IN_TITLE; +#endif + return parse_titleiconstring(args, flagval); +} + +#if (defined(FEAT_TOOLBAR) && !defined(FEAT_GUI_MSWIN)) || defined(PROTO) +/* + * The 'toolbar' option is changed. + */ + char * +did_set_toolbar(optset_T *args UNUSED) +{ + if (opt_strings_flags(p_toolbar, p_toolbar_values, &toolbar_flags, + TRUE) != OK) + return e_invalid_argument; + + out_flush(); + gui_mch_show_toolbar((toolbar_flags & + (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0); + return NULL; +} + + int +expand_set_toolbar(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_toolbar_values, + ARRAY_LENGTH(p_toolbar_values) - 1, + numMatches, + matches); +} +#endif + +#if (defined(FEAT_TOOLBAR) && defined(FEAT_GUI_GTK)) || defined(PROTO) +/* + * The 'toolbariconsize' option is changed. GTK+ 2 only. + */ + char * +did_set_toolbariconsize(optset_T *args UNUSED) +{ + if (opt_strings_flags(p_tbis, p_tbis_values, &tbis_flags, FALSE) != OK) + return e_invalid_argument; + + out_flush(); + gui_mch_show_toolbar((toolbar_flags & + (TOOLBAR_TEXT | TOOLBAR_ICONS)) != 0); + return NULL; +} + + int +expand_set_toolbariconsize(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_tbis_values, + ARRAY_LENGTH(p_tbis_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(UNIX) || defined(VMS) || defined(PROTO) +/* + * The 'ttymouse' option is changed. + */ + char * +did_set_ttymouse(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + // Switch the mouse off before changing the escape sequences used for + // that. + mch_setmouse(FALSE); + if (opt_strings_flags(p_ttym, p_ttym_values, &ttym_flags, FALSE) != OK) + errmsg = e_invalid_argument; + else + check_mouse_termcode(); + if (termcap_active) + setmouse(); // may switch it on again + + return errmsg; +} + + int +expand_set_ttymouse(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ttym_values, + ARRAY_LENGTH(p_ttym_values) - 1, + numMatches, + matches); +} +#endif + +#if defined(FEAT_VARTABS) || defined(PROTO) +/* + * The 'varsofttabstop' option is changed. + */ + char * +did_set_varsofttabstop(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *cp; + + if (!((*varp)[0]) || ((*varp)[0] == '0' && !((*varp)[1]))) + VIM_CLEAR(curbuf->b_p_vsts_array); + else + { + for (cp = *varp; *cp; ++cp) + { + if (vim_isdigit(*cp)) + continue; + if (*cp == ',' && cp > *varp && *(cp-1) != ',') + continue; + return e_invalid_argument; + } + + int *oldarray = curbuf->b_p_vsts_array; + if (tabstop_set(*varp, &(curbuf->b_p_vsts_array)) == OK) + { + if (oldarray) + vim_free(oldarray); + } + else + return e_invalid_argument; + } + + return NULL; +} + +/* + * The 'vartabstop' option is changed. + */ + char * +did_set_vartabstop(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + char_u *cp; + + if (!((*varp)[0]) || ((*varp)[0] == '0' && !((*varp)[1]))) + VIM_CLEAR(curbuf->b_p_vts_array); + else + { + for (cp = *varp; *cp; ++cp) + { + if (vim_isdigit(*cp)) + continue; + if (*cp == ',' && cp > *varp && *(cp-1) != ',') + continue; + return e_invalid_argument; + } + + int *oldarray = curbuf->b_p_vts_array; + + if (tabstop_set(*varp, &(curbuf->b_p_vts_array)) == OK) + { + vim_free(oldarray); +# ifdef FEAT_FOLDING + if (foldmethodIsIndent(curwin)) + foldUpdateAll(curwin); +# endif + } + else + return e_invalid_argument; + } + + return NULL; +} +#endif + +/* + * The 'verbosefile' option is changed. + */ + char * +did_set_verbosefile(optset_T *args UNUSED) +{ + verbose_stop(); + if (*p_vfile != NUL && verbose_open() == FAIL) + return e_invalid_argument; + + return NULL; +} + +#if defined(FEAT_SESSION) || defined(PROTO) +/* + * The 'viewoptions' option is changed. + */ + char * +did_set_viewoptions(optset_T *args UNUSED) +{ + return did_set_opt_flags(p_vop, p_ssop_values, &vop_flags, TRUE); +} +#endif + +#if defined(FEAT_VIMINFO) || defined(PROTO) +/* + * The 'viminfo' option is changed. + */ + char * +did_set_viminfo(optset_T *args) +{ + char_u *s; + char *errmsg = NULL; + + for (s = p_viminfo; *s;) + { + // Check it's a valid character + if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL) + { + errmsg = illegal_char(args->os_errbuf, args->os_errbuflen, *s); + break; + } + if (*s == 'n') // name is always last one + break; + else if (*s == 'r') // skip until next ',' + { + while (*++s && *s != ',') + ; + } + else if (*s == '%') + { + // optional number + while (vim_isdigit(*++s)) + ; + } + else if (*s == '!' || *s == 'h' || *s == 'c') + ++s; // no extra chars + else // must have a number + { + while (vim_isdigit(*++s)) + ; + + if (!VIM_ISDIGIT(*(s - 1))) + { + if (args->os_errbuf != NULL) + { + vim_snprintf(args->os_errbuf, args->os_errbuflen, + _(e_missing_number_after_angle_str_angle), + transchar_byte(*(s - 1))); + errmsg = args->os_errbuf; + } + else + errmsg = ""; + break; + } + } + if (*s == ',') + ++s; + else if (*s) + { + if (args->os_errbuf != NULL) + errmsg = e_missing_comma; + else + errmsg = ""; + break; + } + } + if (*p_viminfo && errmsg == NULL && get_viminfo_parameter('\'') < 0) + errmsg = e_must_specify_a_value; + + return errmsg; +} +#endif + +/* + * The 'virtualedit' option is changed. + */ + char * +did_set_virtualedit(optset_T *args) +{ + char_u *ve = p_ve; + unsigned int *flags = &ve_flags; + + if (args->os_flags & OPT_LOCAL) + { + ve = curwin->w_p_ve; + flags = &curwin->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_invalid_argument; + else if (STRCMP(ve, args->os_oldval.string) != 0) + { + // Recompute cursor position in case the new 've' setting + // changes something. + validate_virtcol(); + coladvance(curwin->w_virtcol); + } + } + + return NULL; +} + + int +expand_set_virtualedit(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_ve_values, + ARRAY_LENGTH(p_ve_values) - 1, + numMatches, + matches); +} + +/* + * The 'whichwrap' option is changed. + */ + char * +did_set_whichwrap(optset_T *args) +{ + char_u **varp = (char_u **)args->os_varp; + + // Add ',' to the list flags because 'whichwrap' is a flag + // list that is comma-separated. + return did_set_option_listflag(*varp, (char_u *)(WW_ALL ","), + args->os_errbuf, args->os_errbuflen); +} + + int +expand_set_whichwrap(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_listflag(args, (char_u*)WW_ALL, numMatches, matches); +} + +/* + * The 'wildmode' option is changed. + */ + char * +did_set_wildmode(optset_T *args UNUSED) +{ + if (check_opt_wim() == FAIL) + return e_invalid_argument; + return NULL; +} + + int +expand_set_wildmode(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_wim_values, + ARRAY_LENGTH(p_wim_values) - 1, + numMatches, + matches); +} + +/* + * The 'wildoptions' option is changed. + */ + char * +did_set_wildoptions(optset_T *args UNUSED) +{ + return did_set_opt_strings(p_wop, p_wop_values, TRUE); +} + + int +expand_set_wildoptions(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_wop_values, + ARRAY_LENGTH(p_wop_values) - 1, + numMatches, + matches); +} + +#if defined(FEAT_WAK) || defined(PROTO) +/* + * The 'winaltkeys' option is changed. + */ + char * +did_set_winaltkeys(optset_T *args UNUSED) +{ + char *errmsg = NULL; + + if (*p_wak == NUL || check_opt_strings(p_wak, p_wak_values, FALSE) != OK) + errmsg = e_invalid_argument; +# ifdef FEAT_MENU +# if defined(FEAT_GUI_MOTIF) + else if (gui.in_use) + gui_motif_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm'); +# elif defined(FEAT_GUI_GTK) + else if (gui.in_use) + gui_gtk_set_mnemonics(p_wak[0] == 'y' || p_wak[0] == 'm'); +# endif +# endif + return errmsg; +} + + int +expand_set_winaltkeys(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_string( + args, + p_wak_values, + ARRAY_LENGTH(p_wak_values) - 1, + numMatches, + matches); +} +#endif + +/* + * The 'wincolor' option is changed. + */ + char * +did_set_wincolor(optset_T *args UNUSED) +{ +#ifdef FEAT_TERMINAL + term_update_wincolor(curwin); +#endif + return NULL; +} + + int +expand_set_wincolor(optexpand_T *args, int *numMatches, char_u ***matches) +{ + return expand_set_opt_generic( + args, + get_highlight_name, + numMatches, + matches); +} + +#ifdef FEAT_SYN_HL +/* + * When the 'syntax' option is set, load the syntax of that name. + */ + static void +do_syntax_autocmd(int 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, curbuf->b_p_syn, curbuf->b_fname, + value_changed || syn_recursive == 1, curbuf); + curbuf->b_flags |= BF_SYN_SET; + --syn_recursive; +} +#endif + +/* + * When the 'filetype' option is set, trigger the FileType autocommand. + */ + static void +do_filetype_autocmd(char_u **varp, int opt_flags, int value_changed) +{ + // Skip this when called from a modeline and the filetype was already set + // to this value. + if ((opt_flags & OPT_MODELINE) && !value_changed) + return; + + static int ft_recursive = 0; + int secure_save = secure; + + // Reset the secure flag, since the value of 'filetype' has + // been checked to be safe. + secure = 0; + + ++ft_recursive; + did_filetype = TRUE; + // Only pass TRUE for "force" when the value changed or not + // used recursively, to avoid endless recurrence. + apply_autocmds(EVENT_FILETYPE, curbuf->b_p_ft, curbuf->b_fname, + value_changed || ft_recursive == 1, curbuf); + --ft_recursive; + // Just in case the old "curbuf" is now invalid. + if (varp != &(curbuf->b_p_ft)) + varp = NULL; + + secure = secure_save; +} + +#ifdef FEAT_SPELL +/* + * When the 'spelllang' option is set, source the spell/LANG.vim file in + * 'runtimepath'. + */ + static void +do_spelllang_source(void) +{ + char_u fname[200]; + char_u *p; + char_u *q = curwin->w_s->b_p_spl; + + // Skip the first name if it is "cjk". + if (STRNCMP(q, "cjk,", 4) == 0) + q += 4; + + // They could set 'spellcapcheck' depending on the language. Use the first + // name in 'spelllang' up to '_region' or '.encoding'. + for (p = q; *p != NUL; ++p) + if (!ASCII_ISALNUM(*p) && *p != '-') + break; + if (p > q) + { + vim_snprintf((char *)fname, 200, "spell/%.*s.vim", + (int)(p - q), q); + source_runtime(fname, DIP_ALL); + } +} +#endif + +/* + * Handle string options that need some action to perform when changed. + * The new value must be allocated. + * Returns NULL for success, or an untranslated error message for an error. + */ + char * +did_set_string_option( + int opt_idx, // index in options[] table + char_u **varp, // pointer to the option variable + char_u *oldval, // previous value of the option + char_u *value, // new value of the option + char *errbuf, // buffer for errors, or NULL + size_t errbuflen, // length of error buffer + int opt_flags, // OPT_LOCAL and/or OPT_GLOBAL + set_op_T op, // OP_ADDING/OP_PREPENDING/OP_REMOVING + int *value_checked) // value was checked to be safe, no + // need to set P_INSECURE +{ + char *errmsg = NULL; + long_u free_oldval = (get_option_flags(opt_idx) & P_ALLOCED); + opt_did_set_cb_T did_set_cb = get_option_did_set_cb(opt_idx); + optset_T args; + + // 'ttytype' is an alias for 'term'. Both 'term' and 'ttytype' point to + // T_NAME. If 'term' or 'ttytype' is modified, then use the index for the + // 'term' option. Only set the P_ALLOCED flag on 'term'. + if (varp == &T_NAME) + { + opt_idx = findoption((char_u *)"term"); + if (opt_idx >= 0) + { + free_oldval = (get_option_flags(opt_idx) & P_ALLOCED); + did_set_cb = get_option_did_set_cb(opt_idx); + } + } + + CLEAR_FIELD(args); + + // Disallow changing some options from secure mode + if ((secure +#ifdef HAVE_SANDBOX + || sandbox != 0 +#endif + ) && (get_option_flags(opt_idx) & P_SECURE)) + errmsg = e_not_allowed_here; + // Check for a "normal" directory or file name in some options. + else if (check_illegal_path_names(opt_idx, varp)) + errmsg = e_invalid_argument; + else if (did_set_cb != NULL) + { + args.os_varp = (char_u *)varp; + args.os_idx = opt_idx; + args.os_flags = opt_flags; + args.os_op = op; + args.os_oldval.string = oldval; + args.os_newval.string = value; + args.os_errbuf = errbuf; + args.os_errbuflen = errbuflen; + // Invoke the option specific callback function to validate and apply + // the new option value. + errmsg = did_set_cb(&args); + + // The 'keymap', 'filetype' and 'syntax' option callback functions + // may change the os_value_checked field. + *value_checked = args.os_value_checked; + } + + // 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 (args.os_restore_chartab) + (void)init_chartab(); + if (varp == &p_hl) + (void)highlight_changed(); + } + else + { +#ifdef FEAT_EVAL + // Remember where the option was set. + set_option_sctx_idx(opt_idx, opt_flags, current_sctx); +#endif + // Free string options that are in allocated memory. + // Use "free_oldval", because recursiveness may change the flags under + // our fingers (esp. init_highlight()). + if (free_oldval) + free_string_option(oldval); + set_option_flag(opt_idx, P_ALLOCED); + + if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0 + && is_global_local_option(opt_idx)) + { + // global option with local value set to use global value; free + // the local value and make it empty + char_u *p = get_option_varp_scope(opt_idx, OPT_LOCAL); + free_string_option(*(char_u **)p); + *(char_u **)p = empty_option; + } + + // May set global value for local option. + else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL) + set_string_option_global(opt_idx, varp); + + // Trigger the autocommand only after setting the flags. +#ifdef FEAT_SYN_HL + if (varp == &(curbuf->b_p_syn)) + do_syntax_autocmd(args.os_value_changed); +#endif + else if (varp == &(curbuf->b_p_ft)) + do_filetype_autocmd(varp, opt_flags, args.os_value_changed); +#ifdef FEAT_SPELL + if (varp == &(curwin->w_s->b_p_spl)) + do_spelllang_source(); +#endif + } + + if (varp == &p_mouse) + { + if (*p_mouse == NUL) + mch_setmouse(FALSE); // switch mouse off + else + setmouse(); // in case 'mouse' changed + } + +#if defined(FEAT_LUA) || defined(PROTO) + if (varp == &p_rtp) + update_package_paths_in_lua(); +#endif + +#if defined(FEAT_LINEBREAK) + // Changing Formatlistpattern when briopt includes the list setting: + // redraw + if ((varp == &p_flp || varp == &(curbuf->b_p_flp)) + && curwin->w_briopt_list) + redraw_all_later(UPD_NOT_VALID); +#endif + + if (curwin->w_curswant != MAXCOL + && (get_option_flags(opt_idx) & (P_CURSWANT | P_RALL)) != 0) + curwin->w_set_curswant = TRUE; + + if ((opt_flags & OPT_NO_REDRAW) == 0) + { +#ifdef FEAT_GUI + // set when changing an option that only requires a redraw in the GUI + int redraw_gui_only = FALSE; + + if (varp == &p_go // 'guioptions' + || varp == &p_guifont // 'guifont' +# ifdef FEAT_GUI_TABLINE + || varp == &p_gtl // 'guitablabel' + || varp == &p_gtt // 'guitabtooltip' +# endif +# ifdef FEAT_XFONTSET + || varp == &p_guifontset // 'guifontset' +# endif + || varp == &p_guifontwide // 'guifontwide' +# ifdef FEAT_GUI_GTK + || varp == &p_guiligatures // 'guiligatures' +# endif + ) + redraw_gui_only = TRUE; + + // check redraw when it's not a GUI option or the GUI is active. + if (!redraw_gui_only || gui.in_use) +#endif + check_redraw(get_option_flags(opt_idx)); + } + +#if defined(FEAT_VTP) && defined(FEAT_TERMGUICOLORS) + if (args.os_did_swaptcap) + { + set_termname((char_u *)"win32"); + init_highlight(TRUE, FALSE); + } +#endif + + return errmsg; +} + +/* + * Check an option that can be a range of string values. + * + * Return OK for correct value, FAIL otherwise. + * Empty is always OK. + */ + static int +check_opt_strings( + char_u *val, + char **values, + int list) // when TRUE: accept a list of values +{ + return opt_strings_flags(val, values, NULL, list); +} + +/* + * Handle an option that can be a range of string values. + * Set a flag in "*flagp" for each string present. + * + * Return OK for correct value, FAIL otherwise. + * Empty is always OK. + */ + static int +opt_strings_flags( + char_u *val, // new value + char **values, // array of valid string values + unsigned *flagp, + int list) // when TRUE: accept a list of values +{ + int i; + int len; + unsigned new_flags = 0; + + while (*val) + { + for (i = 0; ; ++i) + { + if (values[i] == NULL) // val not found in values[] + return FAIL; + + len = (int)STRLEN(values[i]); + if (STRNCMP(values[i], val, len) == 0 + && ((list && val[len] == ',') || val[len] == NUL)) + { + val += len + (val[len] == ','); + new_flags |= (1 << i); + break; // check next item in val list + } + } + } + if (flagp != NULL) + *flagp = new_flags; + + return OK; +} + +/* + * return OK if "p" is a valid fileformat name, FAIL otherwise. + */ + int +check_ff_value(char_u *p) +{ + return check_opt_strings(p, p_ff_values, FALSE); +} + +/* + * 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((char_u *)"shm", 0L, (char_u *)"", 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((char_u *)"shm", 0L, shm_buf, 0); + vim_memset(shm_buf, 0, SHM_LEN); + } +} |