GitHub/neovim
1
0
Fork 0
mirror of https://github.com/neovim/neovim synced 2025-07-15 16:51:49 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
fb0dc825e9bbb9bed0d98b8c7f6ac1d117408c90
neovim/src/nvim/optionstr.c
glepnir fb0dc825e9 feat(option): custom chars in 'winborder' #33772 
Problem: winborder option only supported predefined styles and lacked support for custom border characters.

Solution: implement parsing for comma-separated list format that allows specifying 8 individual border characters (topleft, top, topright, right, botright, bottom, botleft, left).
2025-07-09 18:15:08 -07:00

2540 lines
71 KiB
C
Raw Blame History

#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include "nvim/api/private/defs.h"
#include "nvim/api/win_config.h"
#include "nvim/ascii_defs.h"
#include "nvim/autocmd.h"
#include "nvim/buffer_defs.h"
#include "nvim/charset.h"
#include "nvim/cmdexpand.h"
#include "nvim/cmdexpand_defs.h"
#include "nvim/cursor.h"
#include "nvim/cursor_shape.h"
#include "nvim/diff.h"
#include "nvim/digraph.h"
#include "nvim/drawscreen.h"
#include "nvim/errors.h"
#include "nvim/eval/userfunc.h"
#include "nvim/eval/vars.h"
#include "nvim/ex_getln.h"
#include "nvim/fold.h"
#include "nvim/gettext_defs.h"
#include "nvim/globals.h"
#include "nvim/grid.h"
#include "nvim/highlight_group.h"
#include "nvim/indent.h"
#include "nvim/indent_c.h"
#include "nvim/insexpand.h"
#include "nvim/macros_defs.h"
#include "nvim/mark.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/move.h"
#include "nvim/option.h"
#include "nvim/option_defs.h"
#include "nvim/option_vars.h"
#include "nvim/optionstr.h"
#include "nvim/os/os.h"
#include "nvim/pos_defs.h"
#include "nvim/regexp.h"
#include "nvim/regexp_defs.h"
#include "nvim/spell.h"
#include "nvim/spellfile.h"
#include "nvim/spellsuggest.h"
#include "nvim/strings.h"
#include "nvim/tag.h"
#include "nvim/terminal.h"
#include "nvim/types_defs.h"
#include "nvim/vim_defs.h"
#include "nvim/window.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "optionstr.c.generated.h"
#endif
static const char e_illegal_character_after_chr[]
= N_("E535: Illegal character after <%c>");
static const char e_comma_required[]
= N_("E536: Comma required");
static const char e_unclosed_expression_sequence[]
= N_("E540: Unclosed expression sequence");
static const char e_unbalanced_groups[]
= N_("E542: Unbalanced groups");
static const char e_backupext_and_patchmode_are_equal[]
= N_("E589: 'backupext' and 'patchmode' are equal");
static const char e_showbreak_contains_unprintable_or_wide_character[]
= N_("E595: 'showbreak' contains unprintable or wide character");
static const char e_wrong_number_of_characters_for_field_str[]
= N_("E1511: Wrong number of characters for field \"%s\"");
static const char e_wrong_character_width_for_field_str[]
= N_("E1512: Wrong character width for field \"%s\"");
/// All possible flags for 'shm'.
/// the literal chars before 0 are removed flags. these are safely ignored
static char SHM_ALL[] = { SHM_RO, SHM_MOD, SHM_LINES,
SHM_WRI, SHM_ABBREVIATIONS, SHM_WRITE, SHM_TRUNC, SHM_TRUNCALL,
SHM_OVER, SHM_OVERALL, SHM_SEARCH, SHM_ATTENTION, SHM_INTRO,
SHM_COMPLETIONMENU, SHM_COMPLETIONSCAN, SHM_RECORDING, SHM_FILEINFO,
SHM_SEARCHCOUNT, 'n', 'f', 'x', 'i', 0, };
/// After setting various option values: recompute variables that depend on
/// option values.
void didset_string_options(void)
{
check_str_opt(kOptCasemap, NULL);
check_str_opt(kOptBackupcopy, NULL);
check_str_opt(kOptBelloff, NULL);
check_str_opt(kOptCompletefuzzycollect, NULL);
check_str_opt(kOptIsexpand, NULL);
check_str_opt(kOptCompleteopt, NULL);
check_str_opt(kOptSessionoptions, NULL);
check_str_opt(kOptViewoptions, NULL);
check_str_opt(kOptFoldopen, NULL);
check_str_opt(kOptDisplay, NULL);
check_str_opt(kOptJumpoptions, NULL);
check_str_opt(kOptRedrawdebug, NULL);
check_str_opt(kOptTagcase, NULL);
check_str_opt(kOptTermpastefilter, NULL);
check_str_opt(kOptVirtualedit, NULL);
check_str_opt(kOptSwitchbuf, NULL);
check_str_opt(kOptTabclose, NULL);
check_str_opt(kOptWildoptions, NULL);
check_str_opt(kOptClipboard, NULL);
}
char *illegal_char(char *errbuf, size_t errbuflen, int c)
{
if (errbuf == NULL) {
return "";
}
vim_snprintf(errbuf, errbuflen, _("E539: Illegal character <%s>"),
transchar(c));
return errbuf;
}
/// Check string options in a buffer for NULL value.
void check_buf_options(buf_T *buf)
{
check_string_option(&buf->b_p_bh);
check_string_option(&buf->b_p_bt);
check_string_option(&buf->b_p_fenc);
check_string_option(&buf->b_p_ff);
check_string_option(&buf->b_p_def);
check_string_option(&buf->b_p_inc);
check_string_option(&buf->b_p_inex);
check_string_option(&buf->b_p_inde);
check_string_option(&buf->b_p_indk);
check_string_option(&buf->b_p_fp);
check_string_option(&buf->b_p_fex);
check_string_option(&buf->b_p_kp);
check_string_option(&buf->b_p_mps);
check_string_option(&buf->b_p_fo);
check_string_option(&buf->b_p_flp);
check_string_option(&buf->b_p_isk);
check_string_option(&buf->b_p_com);
check_string_option(&buf->b_p_cms);
check_string_option(&buf->b_p_nf);
check_string_option(&buf->b_p_qe);
check_string_option(&buf->b_p_syn);
check_string_option(&buf->b_s.b_syn_isk);
check_string_option(&buf->b_s.b_p_spc);
check_string_option(&buf->b_s.b_p_spf);
check_string_option(&buf->b_s.b_p_spl);
check_string_option(&buf->b_s.b_p_spo);
check_string_option(&buf->b_p_sua);
check_string_option(&buf->b_p_cink);
check_string_option(&buf->b_p_cino);
parse_cino(buf);
check_string_option(&buf->b_p_lop);
check_string_option(&buf->b_p_ft);
check_string_option(&buf->b_p_cinw);
check_string_option(&buf->b_p_cinsd);
check_string_option(&buf->b_p_cot);
check_string_option(&buf->b_p_cpt);
check_string_option(&buf->b_p_cfu);
check_string_option(&buf->b_p_ofu);
check_string_option(&buf->b_p_keymap);
check_string_option(&buf->b_p_gefm);
check_string_option(&buf->b_p_gp);
check_string_option(&buf->b_p_mp);
check_string_option(&buf->b_p_efm);
check_string_option(&buf->b_p_ep);
check_string_option(&buf->b_p_path);
check_string_option(&buf->b_p_tags);
check_string_option(&buf->b_p_ffu);
check_string_option(&buf->b_p_tfu);
check_string_option(&buf->b_p_tc);
check_string_option(&buf->b_p_dict);
check_string_option(&buf->b_p_tsr);
check_string_option(&buf->b_p_tsrfu);
check_string_option(&buf->b_p_lw);
check_string_option(&buf->b_p_bkc);
check_string_option(&buf->b_p_menc);
check_string_option(&buf->b_p_vsts);
check_string_option(&buf->b_p_vts);
}
/// Free the string allocated for an option.
/// Checks for the string being empty_string_option. This may happen if we're out of memory,
/// xstrdup() returned NULL, which was replaced by empty_string_option by check_options().
void free_string_option(char *p)
{
if (p != empty_string_option) {
xfree(p);
}
}
void clear_string_option(char **pp)
{
if (*pp != empty_string_option) {
xfree(*pp);
}
*pp = empty_string_option;
}
void check_string_option(char **pp)
{
if (*pp == NULL) {
*pp = empty_string_option;
}
}
/// Return true if "val" is a valid 'filetype' name.
/// Also used for 'syntax' and 'keymap'.
static bool valid_filetype(const char *val)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return valid_name(val, ".-_");
}
/// Handle setting 'signcolumn' for value 'val'. Store minimum and maximum width.
///
/// @param wcl when NULL: use "wp->w_p_scl"
/// @param wp when NULL: only parse "scl"
///
/// @return OK when the value is valid, FAIL otherwise
int check_signcolumn(char *scl, win_T *wp)
{
char *val = empty_string_option;
if (scl != NULL) {
val = scl;
} else if (wp != NULL) {
val = wp->w_p_scl;
}
if (*val == NUL) {
return FAIL;
}
if (opt_strings_flags(val, opt_scl_values, NULL, false) == OK) {
if (wp == NULL) {
return OK;
}
if (!strncmp(val, "no", 2)) { // no
wp->w_minscwidth = wp->w_maxscwidth = SCL_NO;
} else if (!strncmp(val, "nu", 2) && (wp->w_p_nu || wp->w_p_rnu)) { // number
wp->w_minscwidth = wp->w_maxscwidth = SCL_NUM;
} else if (!strncmp(val, "yes:", 4)) { // yes:<NUM>
wp->w_minscwidth = wp->w_maxscwidth = val[4] - '0';
} else if (*val == 'y') { // yes
wp->w_minscwidth = wp->w_maxscwidth = 1;
} else if (!strncmp(val, "auto:", 5)) { // auto:<NUM>
wp->w_minscwidth = 0;
wp->w_maxscwidth = val[5] - '0';
} else { // auto
wp->w_minscwidth = 0;
wp->w_maxscwidth = 1;
}
} else {
if (strncmp(val, "auto:", 5) != 0
|| strlen(val) != 8
|| !ascii_isdigit(val[5])
|| val[6] != '-'
|| !ascii_isdigit(val[7])) {
return FAIL;
}
// auto:<NUM>-<NUM>
int min = val[5] - '0';
int max = val[7] - '0';
if (min < 1 || max < 2 || min > 8 || min >= max) {
return FAIL;
}
if (wp == NULL) {
return OK;
}
wp->w_minscwidth = min;
wp->w_maxscwidth = max;
}
int scwidth = wp->w_minscwidth <= 0 ? 0 : MIN(wp->w_maxscwidth, wp->w_scwidth);
wp->w_scwidth = MAX(wp->w_minscwidth, scwidth);
return OK;
}
/// Check validity of options with the 'statusline' format.
/// Return an untranslated error message or NULL.
const char *check_stl_option(char *s)
{
int groupdepth = 0;
static char errbuf[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 (ascii_isdigit(*s)) {
s++;
}
if (*s == STL_USER_HL) {
continue;
}
if (*s == '.') {
s++;
while (*s && ascii_isdigit(*s)) {
s++;
}
}
if (*s == '(') {
groupdepth++;
continue;
}
if (vim_strchr(STL_ALL, (uint8_t)(*s)) == NULL) {
return illegal_char(errbuf, sizeof(errbuf), (uint8_t)(*s));
}
if (*s == '{') {
bool reevaluate = (*++s == '%');
if (reevaluate && *++s == '}') {
// "}" is not allowed immediately after "%{%"
return illegal_char(errbuf, sizeof(errbuf), '}');
}
while ((*s != '}' || (reevaluate && s[-1] != '%')) && *s) {
s++;
}
if (*s != '}') {
return e_unclosed_expression_sequence;
}
}
}
if (groupdepth != 0) {
return e_unbalanced_groups;
}
return NULL;
}
/// Check for a "normal" directory or file name in some options. Disallow a
/// path separator (slash and/or backslash), wildcards and characters that are
/// often illegal in a file name. Be more permissive if "secure" is off.
bool check_illegal_path_names(char *val, uint32_t flags)
{
return (((flags & kOptFlagNFname)
&& strpbrk(val, (secure ? "/\\*?[|;&<>\r\n" : "/\\*?[<>\r\n")) != NULL)
|| ((flags & kOptFlagNDname)
&& strpbrk(val, "*?[|;&<>\r\n") != NULL));
}
/// An option that accepts a list of flags is changed.
/// e.g. 'viewoptions', 'switchbuf', 'casemap', etc.
static const char *did_set_opt_flags(char *val, const char **values, unsigned *flagp, bool list)
{
if (opt_strings_flags(val, values, flagp, list) != OK) {
return e_invarg;
}
return NULL;
}
static const char **opt_values(OptIndex idx, size_t *values_len)
{
OptIndex idx1 = idx == kOptViewoptions ? kOptSessionoptions
: idx == kOptFileformats ? kOptFileformat
: idx;
vimoption_T *opt = get_option(idx1);
if (values_len != NULL) {
*values_len = opt->values_len;
}
return opt->values;
}
static int check_str_opt(OptIndex idx, char **varp)
{
vimoption_T *opt = get_option(idx);
if (varp == NULL) {
varp = opt->var;
}
bool list = opt->flags & (kOptFlagComma | kOptFlagOneComma);
const char **values = opt_values(idx, NULL);
return opt_strings_flags(*varp, values, opt->flags_var, list);
}
int expand_set_str_generic(optexpand_T *args, int *numMatches, char ***matches)
{
size_t values_len;
const char **values = opt_values(args->oe_idx, &values_len);
return expand_set_opt_string(args, values, values_len, numMatches, matches);
}
const char *did_set_str_generic(optset_T *args)
{
return check_str_opt(args->os_idx, args->os_varp) != OK ? e_invarg : NULL;
}
/// An option which is a list of flags is set. Valid values are in "flags".
static const char *did_set_option_listflag(char *val, char *flags, char *errbuf, size_t errbuflen)
{
for (char *s = val; *s; s++) {
if (vim_strchr(flags, (uint8_t)(*s)) == NULL) {
return illegal_char(errbuf, errbuflen, (uint8_t)(*s));
}
}
return NULL;
}
/// Expand an option that accepts a list of string values.
static int expand_set_opt_string(optexpand_T *args, const char **values, size_t numValues,
int *numMatches, char ***matches)
{
regmatch_T *regmatch = args->oe_regmatch;
bool include_orig_val = args->oe_include_orig_val;
char *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 = xmalloc(sizeof(char *) * (numValues + 1));
int count = 0;
if (include_orig_val && *option_val != NUL) {
(*matches)[count++] = xstrdup(option_val);
}
for (const char **val = values; *val != NULL; val++) {
if (**val == NUL) {
continue; // Ignore empty
} else if (include_orig_val && *option_val != NUL) {
if (strcmp(*val, option_val) == 0) {
continue;
}
}
if (vim_regexec(regmatch, *val, 0)) {
(*matches)[count++] = xstrdup(*val);
}
}
if (count == 0) {
XFREE_CLEAR(*matches);
return FAIL;
}
*numMatches = count;
return OK;
}
static char *set_opt_callback_orig_option = NULL;
static char *((*set_opt_callback_func)(expand_T *, int));
/// Callback used by expand_set_opt_generic to also include the original value.
static char *expand_set_opt_callback(expand_T *xp, int idx)
{
if (idx == 0) {
if (set_opt_callback_orig_option != NULL) {
return set_opt_callback_orig_option;
} else {
return ""; // 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.
static int expand_set_opt_generic(optexpand_T *args, CompleteListItemGetter func, int *numMatches,
char ***matches)
{
set_opt_callback_orig_option = args->oe_include_orig_val ? args->oe_opt_value : NULL;
set_opt_callback_func = func;
// not using fuzzy as currently EXPAND_STRING_SETTING doesn't use it
ExpandGeneric("", args->oe_xp, args->oe_regmatch, matches, numMatches,
expand_set_opt_callback, false);
set_opt_callback_orig_option = NULL;
set_opt_callback_func = NULL;
return OK;
}
/// Expand an option which is a list of flags.
static int expand_set_opt_listflag(optexpand_T *args, char *flags, int *numMatches, char ***matches)
{
char *option_val = args->oe_opt_value;
char *cmdline_val = args->oe_set_arg;
bool append = args->oe_append;
bool 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 = xmalloc(sizeof(char *) * (num_flags + 1));
int count = 0;
if (include_orig_val) {
(*matches)[count++] = xstrdup(option_val);
}
for (char *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;
}
(*matches)[count++] = xmemdupz(flag, 1);
}
}
if (count == 0) {
XFREE_CLEAR(*matches);
return FAIL;
}
*numMatches = count;
return OK;
}
/// The 'ambiwidth' option is changed.
const char *did_set_ambiwidth(optset_T *args)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
return check_chars_options();
}
/// The 'emoji' option is changed.
const char *did_set_emoji(optset_T *args)
{
if (check_str_opt(kOptAmbiwidth, NULL) != OK) {
return e_invarg;
}
return check_chars_options();
}
/// The 'background' option is changed.
const char *did_set_background(optset_T *args)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
if (args->os_oldval.string.data[0] == *p_bg) {
// Value was not changed
return NULL;
}
int dark = (*p_bg == 'd');
init_highlight(false, false);
if (dark != (*p_bg == 'd') && get_var_value("g:colors_name") != NULL) {
// The color scheme must have set 'background' back to another
// value, that's not what we want here. Disable the color
// scheme and set the colors again.
do_unlet(S_LEN("g:colors_name"), true);
free_string_option(p_bg);
p_bg = xstrdup((dark ? "dark" : "light"));
check_string_option(&p_bg);
init_highlight(false, false);
}
// Notify all terminal buffers that the background color changed so they can
// send a theme update notification
FOR_ALL_BUFFERS(buf) {
if (buf->terminal) {
terminal_notify_theme(buf->terminal, dark);
}
}
return NULL;
}
/// The 'backspace' option is changed.
const char *did_set_backspace(optset_T *args FUNC_ATTR_UNUSED)
{
if (ascii_isdigit(*p_bs)) {
if (*p_bs != '2') {
return e_invarg;
}
return NULL;
}
return did_set_str_generic(args);
}
/// The 'backupcopy' option is changed.
const char *did_set_backupcopy(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
const char *oldval = args->os_oldval.string.data;
int opt_flags = args->os_flags;
char *bkc = p_bkc;
unsigned *flags = &bkc_flags;
if (opt_flags & OPT_LOCAL) {
bkc = buf->b_p_bkc;
flags = &buf->b_bkc_flags;
} else if (!(opt_flags & OPT_GLOBAL)) {
// When using :set, clear the local flags.
buf->b_bkc_flags = 0;
}
if ((opt_flags & OPT_LOCAL) && *bkc == NUL) {
// make the local value empty: use the global value
*flags = 0;
} else {
if (opt_strings_flags(bkc, opt_bkc_values, flags, true) != OK) {
return e_invarg;
}
if (((*flags & kOptBkcFlagAuto) != 0)
+ ((*flags & kOptBkcFlagYes) != 0)
+ ((*flags & kOptBkcFlagNo) != 0) != 1) {
// Must have exactly one of "auto", "yes" and "no".
opt_strings_flags(oldval, opt_bkc_values, flags, true);
return e_invarg;
}
}
return NULL;
}
/// The 'backupext' or the 'patchmode' option is changed.
const char *did_set_backupext_or_patchmode(optset_T *args FUNC_ATTR_UNUSED)
{
if (strcmp(*p_bex == '.' ? p_bex + 1 : p_bex,
*p_pm == '.' ? p_pm + 1 : p_pm) == 0) {
return e_backupext_and_patchmode_are_equal;
}
return NULL;
}
/// The 'breakat' option is changed.
const char *did_set_breakat(optset_T *args FUNC_ATTR_UNUSED)
{
for (int i = 0; i < 256; i++) {
breakat_flags[i] = false;
}
if (p_breakat != NULL) {
for (char *p = p_breakat; *p; p++) {
breakat_flags[(uint8_t)(*p)] = true;
}
}
return NULL;
}
/// The 'breakindentopt' option is changed.
const char *did_set_breakindentopt(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
if (briopt_check(*varp, varp == &win->w_p_briopt ? win : NULL) == FAIL) {
return e_invarg;
}
// list setting requires a redraw
if (varp == &win->w_p_briopt && win->w_briopt_list) {
redraw_all_later(UPD_NOT_VALID);
}
return NULL;
}
/// The 'bufhidden' option is changed.
const char *did_set_bufhidden(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
return did_set_opt_flags(buf->b_p_bh, opt_bh_values, NULL, false);
}
/// The 'buftype' option is changed.
const char *did_set_buftype(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
win_T *win = (win_T *)args->os_win;
// When 'buftype' is set, check for valid value.
if ((buf->terminal && buf->b_p_bt[0] != 't')
|| (!buf->terminal && buf->b_p_bt[0] == 't')
|| opt_strings_flags(buf->b_p_bt, opt_bt_values, NULL, false) != OK) {
return e_invarg;
}
// buftype=prompt:
if (buf->b_p_bt[0] == 'p') {
// Set default value for 'comments'
set_option_direct(kOptComments, STATIC_CSTR_AS_OPTVAL(""), OPT_LOCAL, SID_NONE);
// set the prompt start position to lastline.
pos_T next_prompt = { .lnum = buf->b_ml.ml_line_count, .col = 1, .coladd = 0 };
RESET_FMARK(&buf->b_prompt_start, next_prompt, 0, ((fmarkv_T)INIT_FMARKV));
}
if (win->w_status_height || global_stl_height()) {
win->w_redr_status = true;
redraw_later(win, UPD_VALID);
}
buf->b_help = (buf->b_p_bt[0] == 'h');
redraw_titles();
return NULL;
}
/// The global 'listchars' or 'fillchars' option is changed.
static const char *did_set_global_chars_option(win_T *win, char *val, CharsOption what,
int opt_flags, char *errbuf, size_t errbuflen)
{
const char *errmsg = NULL;
char **local_ptr = (what == kListchars) ? &win->w_p_lcs : &win->w_p_fcs;
// only apply the global value to "win" when it does not have a
// local value
errmsg = set_chars_option(win, val, what,
**local_ptr == NUL || !(opt_flags & OPT_GLOBAL),
errbuf, errbuflen);
if (errmsg != NULL) {
return errmsg;
}
// If the current window is set to use the global
// 'listchars'/'fillchars' value, clear the window-local value.
if (!(opt_flags & OPT_GLOBAL)) {
clear_string_option(local_ptr);
}
FOR_ALL_TAB_WINDOWS(tp, wp) {
// If the current window has a local value need to apply it
// again, it was changed when setting the global value.
// If no error was returned above, we don't expect an error
// here, so ignore the return value.
char *opt = (what == kListchars) ? wp->w_p_lcs : wp->w_p_fcs;
if (*opt == NUL) {
set_chars_option(wp, opt, what, true, errbuf, errbuflen);
}
}
redraw_all_later(UPD_NOT_VALID);
return NULL;
}
/// The 'fillchars' option or the 'listchars' option is changed.
const char *did_set_chars_option(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
const char *errmsg = NULL;
if (varp == &p_lcs) { // global 'listchars'
errmsg = did_set_global_chars_option(win, *varp, kListchars, args->os_flags,
args->os_errbuf, args->os_errbuflen);
} else if (varp == &p_fcs) { // global 'fillchars'
errmsg = did_set_global_chars_option(win, *varp, kFillchars, args->os_flags,
args->os_errbuf, args->os_errbuflen);
} else if (varp == &win->w_p_lcs) { // local 'listchars'
errmsg = set_chars_option(win, *varp, kListchars, true,
args->os_errbuf, args->os_errbuflen);
} else if (varp == &win->w_p_fcs) { // local 'fillchars'
errmsg = set_chars_option(win, *varp, kFillchars, true,
args->os_errbuf, args->os_errbuflen);
}
return errmsg;
}
/// Expand 'fillchars' or 'listchars' option value.
int expand_set_chars_option(optexpand_T *args, int *numMatches, char ***matches)
{
char **varp = (char **)args->oe_varp;
bool 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.
const char *did_set_cinoptions(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
// TODO(vim): recognize errors
parse_cino(buf);
return NULL;
}
/// The 'colorcolumn' option is changed.
const char *did_set_colorcolumn(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
return check_colorcolumn(*varp, varp == &win->w_p_cc ? win : NULL);
}
/// The 'comments' option is changed.
const char *did_set_comments(optset_T *args)
{
char **varp = (char **)args->os_varp;
char *errmsg = NULL;
for (char *s = *varp; *s;) {
while (*s && *s != ':') {
if (vim_strchr(COM_ALL, (uint8_t)(*s)) == NULL
&& !ascii_isdigit(*s) && *s != '-') {
errmsg = illegal_char(args->os_errbuf, args->os_errbuflen, (uint8_t)(*s));
break;
}
s++;
}
if (*s++ == NUL) {
errmsg = N_("E524: Missing colon");
} else if (*s == ',' || *s == NUL) {
errmsg = N_("E525: Zero length string");
}
if (errmsg != NULL) {
break;
}
while (*s && *s != ',') {
if (*s == '\\' && s[1] != NUL) {
s++;
}
s++;
}
s = skip_to_option_part(s);
}
return errmsg;
}
/// The 'commentstring' option is changed.
const char *did_set_commentstring(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (**varp != NUL && strstr(*varp, "%s") == NULL) {
return N_("E537: 'commentstring' must be empty or contain %s");
}
return NULL;
}
/// Check if value for 'complete' is valid when 'complete' option is changed.
const char *did_set_complete(optset_T *args)
{
char **varp = (char **)args->os_varp;
char buffer[LSIZE];
uint8_t char_before = NUL;
for (char *p = *varp; *p;) {
memset(buffer, 0, LSIZE);
char *buf_ptr = buffer;
int escape = 0;
// Extract substring while handling escaped commas
while (*p && (*p != ',' || escape) && buf_ptr < (buffer + LSIZE - 1)) {
if (*p == '\\' && *(p + 1) == ',') {
escape = 1; // Mark escape mode
p++; // Skip '\'
} else {
escape = 0;
*buf_ptr++ = *p;
}
p++;
}
*buf_ptr = NUL;
if (vim_strchr(".wbuksid]tUfFo", (uint8_t)(*buffer)) == NULL) {
return illegal_char(args->os_errbuf, args->os_errbuflen, (uint8_t)(*buffer));
}
if (vim_strchr("ksF", (uint8_t)(*buffer)) == NULL && *(buffer + 1) != NUL
&& *(buffer + 1) != '^') {
char_before = (uint8_t)(*buffer);
} else {
char *t;
// Test for a number after '^'
if ((t = vim_strchr(buffer, '^')) != NULL) {
*t++ = NUL;
if (!*t) {
char_before = '^';
} else {
for (; *t; t++) {
if (!ascii_isdigit(*t)) {
char_before = '^';
break;
}
}
}
}
}
if (char_before != NUL) {
if (args->os_errbuf != NULL) {
vim_snprintf(args->os_errbuf, args->os_errbuflen,
_(e_illegal_character_after_chr), char_before);
return args->os_errbuf;
}
return NULL;
}
// Skip comma and spaces
while (*p == ',' || *p == ' ') {
p++;
}
}
return NULL;
}
/// The 'completeitemalign' option is changed.
const char *did_set_completeitemalign(optset_T *args)
{
char *p = p_cia;
unsigned new_cia_flags = 0;
bool seen[3] = { false, false, false };
int count = 0;
char buf[10];
while (*p) {
copy_option_part(&p, buf, sizeof(buf), ",");
if (count >= 3) {
return e_invarg;
}
if (strequal(buf, "abbr")) {
if (seen[CPT_ABBR]) {
return e_invarg;
}
new_cia_flags = new_cia_flags * 10 + CPT_ABBR;
seen[CPT_ABBR] = true;
count++;
} else if (strequal(buf, "kind")) {
if (seen[CPT_KIND]) {
return e_invarg;
}
new_cia_flags = new_cia_flags * 10 + CPT_KIND;
seen[CPT_KIND] = true;
count++;
} else if (strequal(buf, "menu")) {
if (seen[CPT_MENU]) {
return e_invarg;
}
new_cia_flags = new_cia_flags * 10 + CPT_MENU;
seen[CPT_MENU] = true;
count++;
} else {
return e_invarg;
}
}
if (new_cia_flags == 0 || count != 3) {
return e_invarg;
}
cia_flags = new_cia_flags;
return NULL;
}
/// The 'completeopt' option is changed.
const char *did_set_completeopt(optset_T *args FUNC_ATTR_UNUSED)
{
buf_T *buf = (buf_T *)args->os_buf;
char *cot = p_cot;
unsigned *flags = &cot_flags;
if (args->os_flags & OPT_LOCAL) {
cot = buf->b_p_cot;
flags = &buf->b_cot_flags;
} else if (!(args->os_flags & OPT_GLOBAL)) {
// When using :set, clear the local flags.
buf->b_cot_flags = 0;
}
if (opt_strings_flags(cot, opt_cot_values, NULL, true) != OK) {
return e_invarg;
}
if (opt_strings_flags(cot, opt_cot_values, flags, true) != OK) {
return e_invarg;
}
return NULL;
}
#ifdef BACKSLASH_IN_FILENAME
/// The 'completeslash' option is changed.
const char *did_set_completeslash(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
if (opt_strings_flags(p_csl, opt_csl_values, NULL, false) != OK
|| opt_strings_flags(buf->b_p_csl, opt_csl_values, NULL, false) != OK) {
return e_invarg;
}
return NULL;
}
#endif
/// The 'concealcursor' option is changed.
const char *did_set_concealcursor(optset_T *args)
{
char **varp = (char **)args->os_varp;
return did_set_option_listflag(*varp, COCU_ALL, args->os_errbuf, args->os_errbuflen);
}
int expand_set_concealcursor(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, COCU_ALL, numMatches, matches);
}
/// The 'cpoptions' option is changed.
const char *did_set_cpoptions(optset_T *args)
{
char **varp = (char **)args->os_varp;
return did_set_option_listflag(*varp, CPO_VI, args->os_errbuf, args->os_errbuflen);
}
int expand_set_cpoptions(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, CPO_VI, numMatches, matches);
}
/// The 'cursorlineopt' option is changed.
const char *did_set_cursorlineopt(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
// This could be changed to use opt_strings_flags() instead.
if (**varp == NUL || fill_culopt_flags(*varp, win) != OK) {
return e_invarg;
}
return NULL;
}
/// The 'diffopt' option is changed.
const char *did_set_diffopt(optset_T *args FUNC_ATTR_UNUSED)
{
return diffopt_changed() == FAIL ? e_invarg : NULL;
}
int expand_set_diffopt(optexpand_T *args, int *numMatches, char ***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.
const size_t algo_len = strlen("algorithm:");
if (xp->xp_pattern - args->oe_set_arg >= (int)algo_len
&& strncmp(xp->xp_pattern - algo_len, "algorithm:", algo_len) == 0) {
return expand_set_opt_string(args,
opt_dip_algorithm_values,
ARRAY_SIZE(opt_dip_algorithm_values) - 1,
numMatches,
matches);
}
// Within "inline:", we have a subgroup of possible options.
const size_t inline_len = strlen("inline:");
if (xp->xp_pattern - args->oe_set_arg >= (int)inline_len
&& strncmp(xp->xp_pattern - inline_len, "inline:", inline_len) == 0) {
return expand_set_opt_string(args,
opt_dip_inline_values,
ARRAY_SIZE(opt_dip_inline_values) - 1,
numMatches,
matches);
}
return FAIL;
}
return expand_set_str_generic(args, numMatches, matches);
}
/// The 'display' option is changed.
const char *did_set_display(optset_T *args)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
init_chartab();
msg_grid_validate();
return NULL;
}
/// One of the 'encoding', 'fileencoding' or 'makeencoding'
/// options is changed.
const char *did_set_encoding(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
char **varp = (char **)args->os_varp;
int opt_flags = args->os_flags;
// Get the global option to compare with, otherwise we would have to check
// two values for all local options.
char **gvarp = (char **)get_option_varp_scope_from(args->os_idx, OPT_GLOBAL, buf, NULL);
if (gvarp == &p_fenc) {
if (!MODIFIABLE(buf) && opt_flags != OPT_GLOBAL) {
return e_modifiable;
}
if (vim_strchr(*varp, ',') != NULL) {
// No comma allowed in 'fileencoding'; catches confusing it
// with 'fileencodings'.
return e_invarg;
}
// May show a "+" in the title now.
redraw_titles();
// Add 'fileencoding' to the swap file.
ml_setflags(buf);
}
// canonize the value, so that strcmp() can be used on it
char *p = enc_canonize(*varp);
xfree(*varp);
*varp = p;
if (varp == &p_enc) {
// only encoding=utf-8 allowed
if (strcmp(p_enc, "utf-8") != 0) {
return e_unsupportedoption;
}
spell_reload();
}
return NULL;
}
int expand_set_encoding(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_generic(args, get_encoding_name, numMatches, matches);
}
/// The 'eventignore(win)' option is changed.
const char *did_set_eventignore(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (check_ei(*varp) == FAIL) {
return e_invarg;
}
return NULL;
}
static bool expand_eiw = false;
static char *get_eventignore_name(expand_T *xp, int idx)
{
bool subtract = *xp->xp_pattern == '-';
// 'eventignore(win)' allows special keyword "all" in addition to
// all event names.
if (!subtract && idx == 0) {
return "all";
}
char *name = get_event_name_no_group(xp, idx - 1 + subtract, expand_eiw);
if (name == NULL) {
return NULL;
}
snprintf(IObuff, IOSIZE, "%s%s", subtract ? "-" : "", name);
return IObuff;
}
int expand_set_eventignore(optexpand_T *args, int *numMatches, char ***matches)
{
expand_eiw = args->oe_varp != (char *)&p_ei;
return expand_set_opt_generic(args, get_eventignore_name, numMatches, matches);
}
/// The 'fileformat' option is changed.
const char *did_set_fileformat(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
const char *oldval = args->os_oldval.string.data;
int opt_flags = args->os_flags;
if (!MODIFIABLE(buf) && !(opt_flags & OPT_GLOBAL)) {
return e_modifiable;
}
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
redraw_titles();
// update flag in swap file
ml_setflags(buf);
// Redraw needed when switching to/from "mac": a CR in the text
// will be displayed differently.
if (get_fileformat(buf) == EOL_MAC || *oldval == 'm') {
redraw_buf_later(buf, UPD_NOT_VALID);
}
return NULL;
}
/// Function given to ExpandGeneric() to obtain the possible arguments of the
/// fileformat options.
char *get_fileformat_name(expand_T *xp FUNC_ATTR_UNUSED, int idx)
{
if (idx >= (int)ARRAY_SIZE(opt_ff_values)) {
return NULL;
}
return (char *)opt_ff_values[idx];
}
/// The 'filetype' or the 'syntax' option is changed.
const char *did_set_filetype_or_syntax(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (!valid_filetype(*varp)) {
return e_invarg;
}
args->os_value_changed = strcmp(args->os_oldval.string.data, *varp) != 0;
// Since we check the value, there is no need to set kOptFlagInsecure,
// even when the value comes from a modeline.
args->os_value_checked = true;
return NULL;
}
/// The 'foldexpr' option is changed.
const char *did_set_foldexpr(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
did_set_optexpr(args);
if (foldmethodIsExpr(win)) {
foldUpdateAll(win);
}
return NULL;
}
/// The 'foldignore' option is changed.
const char *did_set_foldignore(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
if (foldmethodIsIndent(win)) {
foldUpdateAll(win);
}
return NULL;
}
/// The 'foldmarker' option is changed.
const char *did_set_foldmarker(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
char *p = vim_strchr(*varp, ',');
if (p == NULL) {
return e_comma_required;
}
if (p == *varp || p[1] == NUL) {
return e_invarg;
}
if (foldmethodIsMarker(win)) {
foldUpdateAll(win);
}
return NULL;
}
/// The 'foldmethod' option is changed.
const char *did_set_foldmethod(optset_T *args)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
win_T *win = (win_T *)args->os_win;
foldUpdateAll(win);
if (foldmethodIsDiff(win)) {
newFoldLevel();
}
return NULL;
}
/// The 'formatoptions' option is changed.
const char *did_set_formatoptions(optset_T *args)
{
char **varp = (char **)args->os_varp;
return did_set_option_listflag(*varp, FO_ALL, args->os_errbuf, args->os_errbuflen);
}
int expand_set_formatoptions(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, FO_ALL, numMatches, matches);
}
/// The 'guicursor' option is changed.
const char *did_set_guicursor(optset_T *args FUNC_ATTR_UNUSED)
{
const char *errmsg = parse_shape_opt(SHAPE_CURSOR);
if (errmsg != NULL) {
return errmsg;
}
if (VIsual_active) {
// In Visual mode cursor may be drawn differently.
redrawWinline(curwin, curwin->w_cursor.lnum);
}
return NULL;
}
/// The 'helpfile' option is changed.
const char *did_set_helpfile(optset_T *args FUNC_ATTR_UNUSED)
{
// May compute new values for $VIM and $VIMRUNTIME
if (didset_vim) {
vim_unsetenv_ext("VIM");
}
if (didset_vimruntime) {
vim_unsetenv_ext("VIMRUNTIME");
}
return NULL;
}
/// The 'helplang' option is changed.
const char *did_set_helplang(optset_T *args FUNC_ATTR_UNUSED)
{
// Check for "", "ab", "ab,cd", etc.
for (char *s = p_hlg; *s != NUL; s += 3) {
if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL)) {
return e_invarg;
}
if (s[2] == NUL) {
break;
}
}
return NULL;
}
/// The 'highlight' option is changed.
const char *did_set_highlight(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (strcmp(*varp, HIGHLIGHT_INIT) != 0) {
return e_unsupportedoption;
}
return NULL;
}
/// The 'iconstring' option is changed.
const char *did_set_iconstring(optset_T *args)
{
return did_set_titleiconstring(args, STL_IN_ICON);
}
/// The 'inccommand' option is changed.
const char *did_set_inccommand(optset_T *args FUNC_ATTR_UNUSED)
{
if (cmdpreview) {
return e_invarg;
}
return did_set_str_generic(args);
}
/// The 'isexpand' option is changed.
const char *did_set_isexpand(optset_T *args)
{
char *ise = p_ise;
char *p;
bool last_was_comma = false;
if (args->os_flags & OPT_LOCAL) {
ise = curbuf->b_p_ise;
}
for (p = ise; *p != NUL;) {
if (*p == '\\' && p[1] == ',') {
p += 2;
last_was_comma = false;
continue;
}
if (*p == ',') {
if (last_was_comma) {
return e_invarg;
}
last_was_comma = true;
p++;
continue;
}
last_was_comma = false;
MB_PTR_ADV(p);
}
if (last_was_comma) {
return e_invarg;
}
return NULL;
}
/// The 'iskeyword' option is changed.
const char *did_set_iskeyword(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (varp == &p_isk) { // only check for global-value
if (check_isopt(*varp) == FAIL) {
return e_invarg;
}
} else { // fallthrough for local-value
return did_set_isopt(args);
}
return NULL;
}
/// The 'isident' or the 'iskeyword' or the 'isprint' or the 'isfname' option is
/// changed.
const char *did_set_isopt(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
// 'isident', 'iskeyword', 'isprint' or 'isfname' option: refill g_chartab[]
// If the new option is invalid, use old value.
// 'lisp' option: refill g_chartab[] for '-' char
if (buf_init_chartab(buf, true) == FAIL) {
args->os_restore_chartab = true; // need to restore it below
return e_invarg; // error in value
}
return NULL;
}
/// The 'keymap' option has changed.
const char *did_set_keymap(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
char **varp = (char **)args->os_varp;
int opt_flags = args->os_flags;
if (!valid_filetype(*varp)) {
return e_invarg;
}
int secure_save = secure;
// Reset the secure flag, since the value of 'keymap' has
// been checked to be safe.
secure = 0;
// load or unload key mapping tables
const char *errmsg = keymap_init();
secure = secure_save;
// Since we check the value, there is no need to set kOptFlagInsecure,
// even when the value comes from a modeline.
args->os_value_checked = true;
if (errmsg == NULL) {
if (*buf->b_p_keymap != NUL) {
// Installed a new keymap, switch on using it.
buf->b_p_iminsert = B_IMODE_LMAP;
if (buf->b_p_imsearch != B_IMODE_USE_INSERT) {
buf->b_p_imsearch = B_IMODE_LMAP;
}
} else {
// Cleared the keymap, may reset 'iminsert' and 'imsearch'.
if (buf->b_p_iminsert == B_IMODE_LMAP) {
buf->b_p_iminsert = B_IMODE_NONE;
}
if (buf->b_p_imsearch == B_IMODE_LMAP) {
buf->b_p_imsearch = B_IMODE_USE_INSERT;
}
}
if ((opt_flags & OPT_LOCAL) == 0) {
set_iminsert_global(buf);
set_imsearch_global(buf);
}
status_redraw_buf(buf);
}
return errmsg;
}
/// The 'keymodel' option is changed.
const char *did_set_keymodel(optset_T *args FUNC_ATTR_UNUSED)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
km_stopsel = (vim_strchr(p_km, 'o') != NULL);
km_startsel = (vim_strchr(p_km, 'a') != NULL);
return NULL;
}
/// The 'lispoptions' option is changed.
const char *did_set_lispoptions(optset_T *args)
{
char **varp = (char **)args->os_varp;
if (**varp != NUL && strcmp(*varp, "expr:0") != 0 && strcmp(*varp, "expr:1") != 0) {
return e_invarg;
}
return NULL;
}
/// The 'matchpairs' option is changed.
const char *did_set_matchpairs(optset_T *args)
{
char **varp = (char **)args->os_varp;
for (char *p = *varp; *p != NUL; p++) {
int x2 = -1;
int x3 = -1;
p += utfc_ptr2len(p);
if (*p != NUL) {
x2 = (unsigned char)(*p++);
}
if (*p != NUL) {
x3 = utf_ptr2char(p);
p += utfc_ptr2len(p);
}
if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ',')) {
return e_invarg;
}
if (*p == NUL) {
break;
}
}
return NULL;
}
/// Process the updated 'messagesopt' option value.
const char *did_set_messagesopt(optset_T *args FUNC_ATTR_UNUSED)
{
if (messagesopt_changed() == FAIL) {
return e_invarg;
}
return NULL;
}
/// The 'mkspellmem' option is changed.
const char *did_set_mkspellmem(optset_T *args FUNC_ATTR_UNUSED)
{
if (spell_check_msm() != OK) {
return e_invarg;
}
return NULL;
}
/// The 'mouse' option is changed.
const char *did_set_mouse(optset_T *args)
{
char **varp = (char **)args->os_varp;
return did_set_option_listflag(*varp, MOUSE_ALL, args->os_errbuf, args->os_errbuflen);
}
int expand_set_mouse(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, MOUSE_ALL, numMatches, matches);
}
/// Handle setting 'mousescroll'.
/// @return error message, NULL if it's OK.
const char *did_set_mousescroll(optset_T *args FUNC_ATTR_UNUSED)
{
OptInt vertical = -1;
OptInt horizontal = -1;
char *string = p_mousescroll;
while (true) {
char *end = vim_strchr(string, ',');
size_t length = end ? (size_t)(end - string) : strlen(string);
// Both "ver:" and "hor:" are 4 bytes long.
// They should be followed by at least one digit.
if (length <= 4) {
return e_invarg;
}
OptInt *direction;
if (memcmp(string, "ver:", 4) == 0) {
direction = &vertical;
} else if (memcmp(string, "hor:", 4) == 0) {
direction = &horizontal;
} else {
return e_invarg;
}
// If the direction has already been set, this is a duplicate.
if (*direction != -1) {
return e_invarg;
}
// Verify that only digits follow the colon.
for (size_t i = 4; i < length; i++) {
if (!ascii_isdigit(string[i])) {
return N_("E5080: Digit expected");
}
}
string += 4;
*direction = getdigits_int(&string, false, -1);
// Num options are generally kept within the signed int range.
// We know this number won't be negative because we've already checked for
// a minus sign. We'll allow 0 as a means of disabling mouse scrolling.
if (*direction == -1) {
return e_invarg;
}
if (!end) {
break;
}
string = end + 1;
}
// If a direction wasn't set, fallback to the default value.
p_mousescroll_vert = (vertical == -1) ? MOUSESCROLL_VERT_DFLT : vertical;
p_mousescroll_hor = (horizontal == -1) ? MOUSESCROLL_HOR_DFLT : horizontal;
return NULL;
}
/// One of the '*expr' options is changed:, 'diffexpr', 'foldexpr', 'foldtext',
/// 'formatexpr', 'includeexpr', 'indentexpr', 'patchexpr' and 'charconvert'.
const char *did_set_optexpr(optset_T *args)
{
char **varp = (char **)args->os_varp;
// If the option value starts with <SID> or s:, then replace that with
// the script identifier.
char *name = get_scriptlocal_funcname(*varp);
if (name != NULL) {
free_string_option(*varp);
*varp = name;
}
return NULL;
}
/// The 'rulerformat' option is changed.
const char *did_set_rulerformat(optset_T *args)
{
return did_set_statustabline_rulerformat(args, true, false);
}
/// The 'selection' option is changed.
const char *did_set_selection(optset_T *args FUNC_ATTR_UNUSED)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
if (VIsual_active) {
// Visual selection may be drawn differently.
redraw_curbuf_later(UPD_INVERTED);
}
return NULL;
}
/// The 'sessionoptions' option is changed.
const char *did_set_sessionoptions(optset_T *args)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg != NULL) {
return errmsg;
}
if ((ssop_flags & kOptSsopFlagCurdir) && (ssop_flags & kOptSsopFlagSesdir)) {
// Don't allow both "sesdir" and "curdir".
const char *oldval = args->os_oldval.string.data;
opt_strings_flags(oldval, opt_ssop_values, &ssop_flags, true);
return e_invarg;
}
return NULL;
}
const char *did_set_shada(optset_T *args)
{
char *errbuf = args->os_errbuf;
size_t errbuflen = args->os_errbuflen;
for (char *s = p_shada; *s;) {
// Check it's a valid character
if (vim_strchr("!\"%'/:<@cfhnrs", (uint8_t)(*s)) == NULL) {
return illegal_char(errbuf, errbuflen, (uint8_t)(*s));
}
if (*s == 'n') { // name is always last one
break;
} else if (*s == 'r') { // skip until next ','
while (*++s && *s != ',') {}
} else if (*s == '%') {
// optional number
while (ascii_isdigit(*++s)) {}
} else if (*s == '!' || *s == 'h' || *s == 'c') {
s++; // no extra chars
} else { // must have a number
while (ascii_isdigit(*++s)) {}
if (!ascii_isdigit(*(s - 1))) {
if (errbuf != NULL) {
vim_snprintf(errbuf, errbuflen,
_("E526: Missing number after <%s>"),
transchar_byte((uint8_t)(*(s - 1))));
return errbuf;
} else {
return "";
}
}
}
if (*s == ',') {
s++;
} else if (*s) {
if (errbuf != NULL) {
return N_("E527: Missing comma");
} else {
return "";
}
}
}
if (*p_shada && get_shada_parameter('\'') < 0) {
return N_("E528: Must specify a ' value");
}
return NULL;
}
/// The 'shortmess' option is changed.
const char *did_set_shortmess(optset_T *args)
{
char **varp = (char **)args->os_varp;
return did_set_option_listflag(*varp, SHM_ALL, args->os_errbuf, args->os_errbuflen);
}
int expand_set_shortmess(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, SHM_ALL, numMatches, matches);
}
/// The 'showbreak' option is changed.
const char *did_set_showbreak(optset_T *args)
{
char **varp = (char **)args->os_varp;
for (char *s = *varp; *s;) {
if (ptr2cells(s) != 1) {
return e_showbreak_contains_unprintable_or_wide_character;
}
MB_PTR_ADV(s);
}
return NULL;
}
/// The 'showcmdloc' option is changed.
const char *did_set_showcmdloc(optset_T *args FUNC_ATTR_UNUSED)
{
const char *errmsg = did_set_str_generic(args);
if (errmsg == NULL) {
comp_col();
}
return errmsg;
}
/// The 'signcolumn' option is changed.
const char *did_set_signcolumn(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
const char *oldval = args->os_oldval.string.data;
if (check_signcolumn(*varp, varp == &win->w_p_scl ? win : NULL) != OK) {
return e_invarg;
}
// When changing the 'signcolumn' to or from 'number', recompute the
// width of the number column if 'number' or 'relativenumber' is set.
if ((*oldval == 'n' && *(oldval + 1) == 'u') || win->w_minscwidth == SCL_NUM) {
win->w_nrwidth_line_count = 0;
}
return NULL;
}
/// The 'spellcapcheck' option is changed.
const char *did_set_spellcapcheck(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
// When 'spellcapcheck' is set compile the regexp program.
return compile_cap_prog(win->w_s);
}
/// The 'spellfile' option is changed.
const char *did_set_spellfile(optset_T *args)
{
char **varp = (char **)args->os_varp;
// When there is a window for this buffer in which 'spell'
// is set load the wordlists.
if (!valid_spellfile(*varp)) {
return e_invarg;
}
return did_set_spell_option();
}
/// The 'spelllang' option is changed.
const char *did_set_spelllang(optset_T *args)
{
char **varp = (char **)args->os_varp;
// When there is a window for this buffer in which 'spell'
// is set load the wordlists.
if (!valid_spelllang(*varp)) {
return e_invarg;
}
return did_set_spell_option();
}
/// The 'spelloptions' option is changed.
const char *did_set_spelloptions(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
int opt_flags = args->os_flags;
const char *val = args->os_newval.string.data;
if (!(opt_flags & OPT_LOCAL)
&& opt_strings_flags(val, opt_spo_values, &spo_flags, true) != OK) {
return e_invarg;
}
if (!(opt_flags & OPT_GLOBAL)
&& opt_strings_flags(val, opt_spo_values, &win->w_s->b_p_spo_flags, true) != OK) {
return e_invarg;
}
return NULL;
}
/// The 'spellsuggest' option is changed.
const char *did_set_spellsuggest(optset_T *args FUNC_ATTR_UNUSED)
{
if (spell_check_sps() != OK) {
return e_invarg;
}
return NULL;
}
/// The 'statuscolumn' option is changed.
const char *did_set_statuscolumn(optset_T *args)
{
return did_set_statustabline_rulerformat(args, false, true);
}
/// The 'statusline' option is changed.
const char *did_set_statusline(optset_T *args)
{
return did_set_statustabline_rulerformat(args, false, false);
}
/// The 'statusline', 'winbar', 'tabline', 'rulerformat' or 'statuscolumn' option is changed.
///
/// @param rulerformat true if the 'rulerformat' option is changed
/// @param statuscolumn true if the 'statuscolumn' option is changed
static const char *did_set_statustabline_rulerformat(optset_T *args, bool rulerformat,
bool statuscolumn)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
if (rulerformat) { // reset ru_wid first
ru_wid = 0;
} else if (statuscolumn) {
// reset 'statuscolumn' width
win->w_nrwidth_line_count = 0;
}
const char *errmsg = NULL;
char *s = *varp;
// reset statusline to default when setting global option and empty string is being set
if (args->os_idx == kOptStatusline
&& ((args->os_flags & OPT_GLOBAL) || !(args->os_flags & OPT_LOCAL))
&& s[0] == NUL) {
xfree(*varp);
*varp = xstrdup(get_option_default(args->os_idx, args->os_flags).data.string.data);
s = *varp;
}
if (rulerformat && *s == '%') {
// set ru_wid if 'ruf' starts with "%99("
if (*++s == '-') { // ignore a '-'
s++;
}
int wid = getdigits_int(&s, true, 0);
if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL) {
ru_wid = wid;
} else {
// Validate the flags in 'rulerformat' only if it doesn't point to
// a custom function ("%!" flag).
if ((*varp)[1] != '!') {
errmsg = check_stl_option(p_ruf);
}
}
} else if (rulerformat || s[0] != '%' || s[1] != '!') {
// check 'statusline', 'winbar', 'tabline' or 'statuscolumn'
// only if it doesn't start with "%!"
errmsg = check_stl_option(s);
}
if (rulerformat && errmsg == NULL) {
comp_col();
}
return errmsg;
}
/// The 'tabline' option is changed.
const char *did_set_tabline(optset_T *args)
{
return did_set_statustabline_rulerformat(args, false, false);
}
/// The 'tagcase' option is changed.
const char *did_set_tagcase(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
int opt_flags = args->os_flags;
unsigned *flags;
char *p;
if (opt_flags & OPT_LOCAL) {
p = buf->b_p_tc;
flags = &buf->b_tc_flags;
} else {
p = p_tc;
flags = &tc_flags;
}
if ((opt_flags & OPT_LOCAL) && *p == NUL) {
// make the local value empty: use the global value
*flags = 0;
} else if (opt_strings_flags(p, opt_tc_values, flags, false) != OK) {
return e_invarg;
}
return NULL;
}
/// The 'titlestring' or the 'iconstring' option is changed.
static const char *did_set_titleiconstring(optset_T *args, int flagval)
{
char **varp = (char **)args->os_varp;
// NULL => statusline syntax
if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL) {
stl_syntax |= flagval;
} else {
stl_syntax &= ~flagval;
}
did_set_title();
return NULL;
}
/// The 'titlestring' option is changed.
const char *did_set_titlestring(optset_T *args)
{
return did_set_titleiconstring(args, STL_IN_TITLE);
}
/// The 'varsofttabstop' option is changed.
const char *did_set_varsofttabstop(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
char **varp = (char **)args->os_varp;
if (!(*varp)[0] || ((*varp)[0] == '0' && !(*varp)[1])) {
XFREE_CLEAR(buf->b_p_vsts_array);
return NULL;
}
for (char *cp = *varp; *cp; cp++) {
if (ascii_isdigit(*cp)) {
continue;
}
if (*cp == ',' && cp > *varp && *(cp - 1) != ',') {
continue;
}
return e_invarg;
}
colnr_T *oldarray = buf->b_p_vsts_array;
if (tabstop_set(*varp, &(buf->b_p_vsts_array))) {
xfree(oldarray);
} else {
return e_invarg;
}
return NULL;
}
/// The 'varstabstop' option is changed.
const char *did_set_vartabstop(optset_T *args)
{
buf_T *buf = (buf_T *)args->os_buf;
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
if (!(*varp)[0] || ((*varp)[0] == '0' && !(*varp)[1])) {
XFREE_CLEAR(buf->b_p_vts_array);
return NULL;
}
for (char *cp = *varp; *cp; cp++) {
if (ascii_isdigit(*cp)) {
continue;
}
if (*cp == ',' && cp > *varp && *(cp - 1) != ',') {
continue;
}
return e_invarg;
}
colnr_T *oldarray = buf->b_p_vts_array;
if (tabstop_set(*varp, &(buf->b_p_vts_array))) {
xfree(oldarray);
if (foldmethodIsIndent(win)) {
foldUpdateAll(win);
}
} else {
return e_invarg;
}
return NULL;
}
/// The 'verbosefile' option is changed.
const char *did_set_verbosefile(optset_T *args)
{
verbose_stop();
if (*p_vfile != NUL && verbose_open() == FAIL) {
return (char *)e_invarg;
}
return NULL;
}
/// The 'virtualedit' option is changed.
const char *did_set_virtualedit(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char *ve = p_ve;
unsigned *flags = &ve_flags;
if (args->os_flags & OPT_LOCAL) {
ve = win->w_p_ve;
flags = &win->w_ve_flags;
}
if ((args->os_flags & OPT_LOCAL) && *ve == NUL) {
// make the local value empty: use the global value
*flags = 0;
} else {
if (opt_strings_flags(ve, opt_ve_values, flags, true) != OK) {
return e_invarg;
} else if (strcmp(ve, args->os_oldval.string.data) != 0) {
// Recompute cursor position in case the new 've' setting
// changes something.
validate_virtcol(win);
coladvance(win, win->w_virtcol);
}
}
return NULL;
}
/// The 'whichwrap' option is changed.
const char *did_set_whichwrap(optset_T *args)
{
char **varp = (char **)args->os_varp;
// Add ',' to the list flags because 'whichwrap' is a flag
// list that is comma-separated.
return did_set_option_listflag(*varp, WW_ALL ",", args->os_errbuf, args->os_errbuflen);
}
int expand_set_whichwrap(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_listflag(args, WW_ALL, numMatches, matches);
}
/// The 'wildmode' option is changed.
const char *did_set_wildmode(optset_T *args FUNC_ATTR_UNUSED)
{
if (check_opt_wim() == FAIL) {
return e_invarg;
}
return NULL;
}
/// The 'winbar' option is changed.
const char *did_set_winbar(optset_T *args)
{
return did_set_statustabline_rulerformat(args, false, false);
}
/// The 'winborder' option is changed.
const char *did_set_winborder(optset_T *args)
{
WinConfig fconfig = WIN_CONFIG_INIT;
Error err = ERROR_INIT;
if (!parse_winborder(&fconfig, &err)) {
api_clear_error(&err);
return e_invarg;
}
api_clear_error(&err);
return NULL;
}
/// The 'winhighlight' option is changed.
const char *did_set_winhighlight(optset_T *args)
{
win_T *win = (win_T *)args->os_win;
char **varp = (char **)args->os_varp;
if (!parse_winhl_opt(*varp, varp == &win->w_p_winhl ? win : NULL)) {
return e_invarg;
}
return NULL;
}
int expand_set_winhighlight(optexpand_T *args, int *numMatches, char ***matches)
{
return expand_set_opt_generic(args, get_highlight_name, numMatches, matches);
}
/// Handle an option that can be a range of string values.
/// Set a flag in "*flagp" for each string present.
///
/// @param val new value
/// @param values array of valid string values
/// @param list when true: accept a list of values
///
/// @return OK for correct value, FAIL otherwise. Empty is always OK.
static int opt_strings_flags(const char *val, const char **values, unsigned *flagp, bool list)
{
unsigned new_flags = 0;
// If not list and val is empty, then force one iteration of the while loop
bool iter_one = (*val == NUL) && !list;
while (*val || iter_one) {
for (unsigned i = 0;; i++) {
if (values[i] == NULL) { // val not found in values[]
return FAIL;
}
size_t len = strlen(values[i]);
if (strncmp(values[i], val, len) == 0
&& ((list && val[len] == ',') || val[len] == NUL)) {
val += len + (val[len] == ',');
assert(i < sizeof(new_flags) * 8);
new_flags |= (1U << i);
break; // check next item in val list
}
}
if (iter_one) {
break;
}
}
if (flagp != NULL) {
*flagp = new_flags;
}
return OK;
}
/// @return OK if "p" is a valid fileformat name, FAIL otherwise.
int check_ff_value(char *p)
{
return opt_strings_flags(p, opt_ff_values, NULL, false);
}
static const char e_conflicts_with_value_of_listchars[]
= N_("E834: Conflicts with value of 'listchars'");
static const char e_conflicts_with_value_of_fillchars[]
= N_("E835: Conflicts with value of 'fillchars'");
/// Calls mb_cptr2char_adv(p) and returns the character.
/// If "p" starts with "\x", "\u" or "\U" the hex or unicode value is used.
/// Returns 0 for invalid hex or invalid UTF-8 byte.
static schar_T get_encoded_char_adv(const char **p)
{
const char *s = *p;
if (s[0] == '\\' && (s[1] == 'x' || s[1] == 'u' || s[1] == 'U')) {
int64_t num = 0;
for (int bytes = s[1] == 'x' ? 1 : s[1] == 'u' ? 2 : 4; bytes > 0; bytes--) {
*p += 2;
int n = hexhex2nr(*p);
if (n < 0) {
return 0;
}
num = num * 256 + n;
}
*p += 2;
return (char2cells((int)num) > 1) ? 0 : schar_from_char((int)num);
}
int clen = utfc_ptr2len(s);
int firstc;
schar_T c = utfc_ptr2schar(s, &firstc);
*p += clen;
// Invalid UTF-8 byte or doublewidth not allowed
return ((clen == 1 && firstc > 127) || char2cells(firstc) > 1) ? 0 : c;
}
struct chars_tab {
schar_T *cp; ///< char value
String name; ///< char id
const char *def; ///< default value
const char *fallback; ///< default value when "def" isn't single-width
};
#define CHARSTAB_ENTRY(cp, name, def, fallback) \
{ (cp), { name, STRLEN_LITERAL(name) }, def, fallback }
static fcs_chars_T fcs_chars;
static const struct chars_tab fcs_tab[] = {
CHARSTAB_ENTRY(&fcs_chars.stl, "stl", " ", NULL),
CHARSTAB_ENTRY(&fcs_chars.stlnc, "stlnc", " ", NULL),
CHARSTAB_ENTRY(&fcs_chars.wbr, "wbr", " ", NULL),
CHARSTAB_ENTRY(&fcs_chars.horiz, "horiz", "─", "-"),
CHARSTAB_ENTRY(&fcs_chars.horizup, "horizup", "┴", "-"),
CHARSTAB_ENTRY(&fcs_chars.horizdown, "horizdown", "┬", "-"),
CHARSTAB_ENTRY(&fcs_chars.vert, "vert", "│", "|"),
CHARSTAB_ENTRY(&fcs_chars.vertleft, "vertleft", "┤", "|"),
CHARSTAB_ENTRY(&fcs_chars.vertright, "vertright", "├", "|"),
CHARSTAB_ENTRY(&fcs_chars.verthoriz, "verthoriz", "┼", "+"),
CHARSTAB_ENTRY(&fcs_chars.fold, "fold", "·", "-"),
CHARSTAB_ENTRY(&fcs_chars.foldopen, "foldopen", "-", NULL),
CHARSTAB_ENTRY(&fcs_chars.foldclosed, "foldclose", "+", NULL),
CHARSTAB_ENTRY(&fcs_chars.foldsep, "foldsep", "│", "|"),
CHARSTAB_ENTRY(&fcs_chars.diff, "diff", "-", NULL),
CHARSTAB_ENTRY(&fcs_chars.msgsep, "msgsep", " ", NULL),
CHARSTAB_ENTRY(&fcs_chars.eob, "eob", "~", NULL),
CHARSTAB_ENTRY(&fcs_chars.lastline, "lastline", "@", NULL),
CHARSTAB_ENTRY(&fcs_chars.trunc, "trunc", ">", NULL),
CHARSTAB_ENTRY(&fcs_chars.truncrl, "truncrl", "<", NULL),
};
static lcs_chars_T lcs_chars;
static const struct chars_tab lcs_tab[] = {
CHARSTAB_ENTRY(&lcs_chars.eol, "eol", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.ext, "extends", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.nbsp, "nbsp", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.prec, "precedes", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.space, "space", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.tab2, "tab", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.lead, "lead", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.trail, "trail", NULL, NULL),
CHARSTAB_ENTRY(&lcs_chars.conceal, "conceal", NULL, NULL),
CHARSTAB_ENTRY(NULL, "multispace", NULL, NULL),
CHARSTAB_ENTRY(NULL, "leadmultispace", NULL, NULL),
};
#undef CHARSTAB_ENTRY
static char *field_value_err(char *errbuf, size_t errbuflen, const char *fmt, const char *field)
{
if (errbuf == NULL) {
return "";
}
vim_snprintf(errbuf, errbuflen, _(fmt), field);
return errbuf;
}
/// Handle setting 'listchars' or 'fillchars'.
/// Assume monocell characters
///
/// @param value points to either the global or the window-local value.
/// @param what kListchars or kFillchars
/// @param apply if false, do not store the flags, only check for errors.
/// @param errbuf buffer for error message, can be NULL if it won't be used.
/// @param errbuflen size of error buffer.
///
/// @return error message, NULL if it's OK.
const char *set_chars_option(win_T *wp, const char *value, CharsOption what, bool apply,
char *errbuf, size_t errbuflen)
{
const char *last_multispace = NULL; // Last occurrence of "multispace:"
const char *last_lmultispace = NULL; // Last occurrence of "leadmultispace:"
int multispace_len = 0; // Length of lcs-multispace string
int lead_multispace_len = 0; // Length of lcs-leadmultispace string
const struct chars_tab *tab;
int entries;
if (what == kListchars) {
tab = lcs_tab;
entries = ARRAY_SIZE(lcs_tab);
if (wp->w_p_lcs[0] == NUL) {
value = p_lcs; // local value is empty, use the global value
}
} else {
tab = fcs_tab;
entries = ARRAY_SIZE(fcs_tab);
if (wp->w_p_fcs[0] == NUL) {
value = p_fcs; // local value is empty, use the global value
}
}
// first round: check for valid value, second round: assign values
for (int round = 0; round <= (apply ? 1 : 0); round++) {
if (round > 0) {
// After checking that the value is valid: set defaults
for (int i = 0; i < entries; i++) {
if (tab[i].cp != NULL) {
// XXX: Characters taking 2 columns is forbidden (TUI limitation?).
// Set old defaults in this case.
*(tab[i].cp) = schar_from_str((tab[i].def && ptr2cells(tab[i].def) == 1)
? tab[i].def : tab[i].fallback);
}
}
if (what == kListchars) {
lcs_chars.tab1 = NUL;
lcs_chars.tab3 = NUL;
if (multispace_len > 0) {
lcs_chars.multispace = xmalloc(((size_t)multispace_len + 1) * sizeof(schar_T));
lcs_chars.multispace[multispace_len] = NUL;
} else {
lcs_chars.multispace = NULL;
}
if (lead_multispace_len > 0) {
lcs_chars.leadmultispace = xmalloc(((size_t)lead_multispace_len + 1) * sizeof(schar_T));
lcs_chars.leadmultispace[lead_multispace_len] = NUL;
} else {
lcs_chars.leadmultispace = NULL;
}
}
}
const char *p = value;
while (*p) {
int i;
for (i = 0; i < entries; i++) {
if (!(strncmp(p, tab[i].name.data,
tab[i].name.size) == 0 && p[tab[i].name.size] == ':')) {
continue;
}
const char *s = p + tab[i].name.size + 1;
if (what == kListchars && strcmp(tab[i].name.data, "multispace") == 0) {
if (round == 0) {
// Get length of lcs-multispace string in the first round
last_multispace = p;
multispace_len = 0;
while (*s != NUL && *s != ',') {
schar_T c1 = get_encoded_char_adv(&s);
if (c1 == 0) {
return field_value_err(errbuf, errbuflen,
e_wrong_character_width_for_field_str,
tab[i].name.data);
}
multispace_len++;
}
if (multispace_len == 0) {
// lcs-multispace cannot be an empty string
return field_value_err(errbuf, errbuflen,
e_wrong_number_of_characters_for_field_str,
tab[i].name.data);
}
} else {
int multispace_pos = 0;
while (*s != NUL && *s != ',') {
schar_T c1 = get_encoded_char_adv(&s);
if (p == last_multispace) {
lcs_chars.multispace[multispace_pos++] = c1;
}
}
}
p = s;
break;
}
if (what == kListchars && strcmp(tab[i].name.data, "leadmultispace") == 0) {
if (round == 0) {
// Get length of lcs-leadmultispace string in first round
last_lmultispace = p;
lead_multispace_len = 0;
while (*s != NUL && *s != ',') {
schar_T c1 = get_encoded_char_adv(&s);
if (c1 == 0) {
return field_value_err(errbuf, errbuflen,
e_wrong_character_width_for_field_str,
tab[i].name.data);
}
lead_multispace_len++;
}
if (lead_multispace_len == 0) {
// lcs-leadmultispace cannot be an empty string
return field_value_err(errbuf, errbuflen,
e_wrong_number_of_characters_for_field_str,
tab[i].name.data);
}
} else {
int multispace_pos = 0;
while (*s != NUL && *s != ',') {
schar_T c1 = get_encoded_char_adv(&s);
if (p == last_lmultispace) {
lcs_chars.leadmultispace[multispace_pos++] = c1;
}
}
}
p = s;
break;
}
if (*s == NUL) {
return field_value_err(errbuf, errbuflen,
e_wrong_number_of_characters_for_field_str,
tab[i].name.data);
}
schar_T c1 = get_encoded_char_adv(&s);
if (c1 == 0) {
return field_value_err(errbuf, errbuflen,
e_wrong_character_width_for_field_str,
tab[i].name.data);
}
schar_T c2 = 0;
schar_T c3 = 0;
if (tab[i].cp == &lcs_chars.tab2) {
if (*s == NUL) {
return field_value_err(errbuf, errbuflen,
e_wrong_number_of_characters_for_field_str,
tab[i].name.data);
}
c2 = get_encoded_char_adv(&s);
if (c2 == 0) {
return field_value_err(errbuf, errbuflen,
e_wrong_character_width_for_field_str,
tab[i].name.data);
}
if (!(*s == ',' || *s == NUL)) {
c3 = get_encoded_char_adv(&s);
if (c3 == 0) {
return field_value_err(errbuf, errbuflen,
e_wrong_character_width_for_field_str,
tab[i].name.data);
}
}
}
if (*s == ',' || *s == NUL) {
if (round > 0) {
if (tab[i].cp == &lcs_chars.tab2) {
lcs_chars.tab1 = c1;
lcs_chars.tab2 = c2;
lcs_chars.tab3 = c3;
} else if (tab[i].cp != NULL) {
*(tab[i].cp) = c1;
}
}
p = s;
break;
} else {
return field_value_err(errbuf, errbuflen,
e_wrong_number_of_characters_for_field_str,
tab[i].name.data);
}
}
if (i == entries) {
return e_invarg;
}
if (*p == ',') {
p++;
}
}
}
if (apply) {
if (what == kListchars) {
xfree(wp->w_p_lcs_chars.multispace);
xfree(wp->w_p_lcs_chars.leadmultispace);
wp->w_p_lcs_chars = lcs_chars;
} else {
wp->w_p_fcs_chars = fcs_chars;
}
}
return NULL; // no error
}
/// Function given to ExpandGeneric() to obtain possible arguments of the
/// 'fillchars' option.
char *get_fillchars_name(expand_T *xp FUNC_ATTR_UNUSED, int idx)
{
if (idx < 0 || idx >= (int)ARRAY_SIZE(fcs_tab)) {
return NULL;
}
return fcs_tab[idx].name.data;
}
/// Function given to ExpandGeneric() to obtain possible arguments of the
/// 'listchars' option.
char *get_listchars_name(expand_T *xp FUNC_ATTR_UNUSED, int idx)
{
if (idx < 0 || idx >= (int)ARRAY_SIZE(lcs_tab)) {
return NULL;
}
return lcs_tab[idx].name.data;
}
/// Check all global and local values of 'listchars' and 'fillchars'.
/// May set different defaults in case character widths change.
///
/// @return an untranslated error message if any of them is invalid, NULL otherwise.
const char *check_chars_options(void)
{
if (set_chars_option(curwin, p_lcs, kListchars, false, NULL, 0) != NULL) {
return e_conflicts_with_value_of_listchars;
}
if (set_chars_option(curwin, p_fcs, kFillchars, false, NULL, 0) != NULL) {
return e_conflicts_with_value_of_fillchars;
}
FOR_ALL_TAB_WINDOWS(tp, wp) {
if (set_chars_option(wp, wp->w_p_lcs, kListchars, true, NULL, 0) != NULL) {
return e_conflicts_with_value_of_listchars;
}
if (set_chars_option(wp, wp->w_p_fcs, kFillchars, true, NULL, 0) != NULL) {
return e_conflicts_with_value_of_fillchars;
}
}
return NULL;
}
Reference in New Issue View Git Blame Copy Permalink