opensourcemirror
/
neovim
mirror of https://github.com/neovim/neovim.git
1
0
Fork 0
Code Issues Releases Wiki Activity
neovim/src/nvim/option.c

7450 lines
225 KiB
C
Raw Blame History

// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
// User-settable options. Checklist for adding a new option:
// - Put it in options.lua
// - For a global option: Add a variable for it in option_defs.h.
// - For a buffer or window local option:
// - Add a BV_XX or WV_XX entry to option_defs.h
// - Add a variable to the window or buffer struct in buffer_defs.h.
// - For a window option, add some code to copy_winopt().
// - For a window string option, add code to check_winopt()
// and clear_winopt(). If setting the option needs parsing,
// add some code to didset_window_options().
// - For a buffer option, add some code to buf_copy_options().
// - For a buffer string option, add code to check_buf_options().
// - If it's a numeric option, add any necessary bounds checks to
// set_num_option().
// - If it's a list of flags, add some code in do_set(), search for WW_ALL.
// - When adding an option with expansion (P_EXPAND), but with a different
// default for Vi and Vim (no P_VI_DEF), add some code at VIMEXP.
// - Add documentation! doc/options.txt, and any other related places.
// - Add an entry in runtime/optwin.vim.
#define IN_OPTION_C
#include <assert.h>
#include <inttypes.h>
#include <stdbool.h>
#include <string.h>
#include <stdlib.h>
#include <limits.h>
#include "nvim/vim.h"
#include "nvim/macros.h"
#include "nvim/ascii.h"
#include "nvim/edit.h"
#include "nvim/option.h"
#include "nvim/buffer.h"
#include "nvim/charset.h"
#include "nvim/cursor.h"
#include "nvim/diff.h"
#include "nvim/digraph.h"
#include "nvim/eval.h"
#include "nvim/eval/typval.h"
#include "nvim/ex_cmds2.h"
#include "nvim/ex_docmd.h"
#include "nvim/ex_getln.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/getchar.h"
#include "nvim/hardcopy.h"
#include "nvim/highlight.h"
#include "nvim/indent_c.h"
#include "nvim/mbyte.h"
#include "nvim/memfile.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/misc1.h"
#include "nvim/keymap.h"
#include "nvim/garray.h"
#include "nvim/cursor_shape.h"
#include "nvim/move.h"
#include "nvim/mouse.h"
#include "nvim/normal.h"
#include "nvim/os_unix.h"
#include "nvim/path.h"
#include "nvim/popupmnu.h"
#include "nvim/regexp.h"
#include "nvim/ex_session.h"
#include "nvim/screen.h"
#include "nvim/spell.h"
#include "nvim/spellfile.h"
#include "nvim/strings.h"
#include "nvim/syntax.h"
#include "nvim/ui.h"
#include "nvim/ui_compositor.h"
#include "nvim/undo.h"
#include "nvim/window.h"
#include "nvim/os/os.h"
#ifdef WIN32
# include "nvim/os/pty_conpty_win.h"
#endif
#include "nvim/api/private/helpers.h"
#include "nvim/os/input.h"
#include "nvim/os/lang.h"
/*
* The options that are local to a window or buffer have "indir" set to one of
* these values. Special values:
* PV_NONE: global option.
* PV_WIN is added: window-local option
* PV_BUF is added: buffer-local option
* PV_BOTH is added: global option which also has a local value.
*/
#define PV_BOTH 0x1000
#define PV_WIN 0x2000
#define PV_BUF 0x4000
#define PV_MASK 0x0fff
#define OPT_WIN(x) (idopt_T)(PV_WIN + (int)(x))
#define OPT_BUF(x) (idopt_T)(PV_BUF + (int)(x))
#define OPT_BOTH(x) (idopt_T)(PV_BOTH + (int)(x))
// WV_ and BV_ values get typecasted to this for the "indir" field
typedef enum {
PV_NONE = 0,
PV_MAXVAL = 0xffff // to avoid warnings for value out of range
} idopt_T;
/*
* Options local to a window have a value local to a buffer and global to all
* buffers. Indicate this by setting "var" to VAR_WIN.
*/
#define VAR_WIN ((char_u *)-1)
static char *p_term = NULL;
static char *p_ttytype = NULL;
/*
* These are the global values for options which are also local to a buffer.
* Only to be used in option.c!
*/
static int p_ai;
static int p_bin;
static int p_bomb;
static char_u *p_bh;
static char_u *p_bt;
static int p_bl;
static long p_channel;
static int p_ci;
static int p_cin;
static char_u *p_cink;
static char_u *p_cino;
static char_u *p_cinw;
static char_u *p_com;
static char_u *p_cms;
static char_u *p_cpt;
static char_u *p_cfu;
static char_u *p_ofu;
static char_u *p_tfu;
static int p_eol;
static int p_fixeol;
static int p_et;
static char_u *p_fenc;
static char_u *p_ff;
static char_u *p_fo;
static char_u *p_flp;
static char_u *p_ft;
static long p_iminsert;
static long p_imsearch;
static char_u *p_inex;
static char_u *p_inde;
static char_u *p_indk;
static char_u *p_fex;
static int p_inf;
static char_u *p_isk;
static int p_lisp;
static int p_ml;
static int p_ma;
static int p_mod;
static char_u *p_mps;
static char_u *p_nf;
static int p_pi;
static char_u *p_qe;
static int p_ro;
static int p_si;
static long p_sts;
static char_u *p_sua;
static long p_sw;
static int p_swf;
static long p_smc;
static char_u *p_syn;
static char_u *p_spc;
static char_u *p_spf;
static char_u *p_spl;
static long p_ts;
static long p_tw;
static int p_udf;
static long p_wm;
static char_u *p_keymap;
// Saved values for when 'bin' is set.
static int p_et_nobin;
static int p_ml_nobin;
static long p_tw_nobin;
static long p_wm_nobin;
// Saved values for when 'paste' is set.
static int p_ai_nopaste;
static int p_et_nopaste;
static long p_sts_nopaste;
static long p_tw_nopaste;
static long p_wm_nopaste;
typedef struct vimoption {
char *fullname; // full option name
char *shortname; // permissible abbreviation
uint32_t flags; // see below
char_u *var; // global option: pointer to variable;
// window-local option: VAR_WIN;
// buffer-local option: global value
idopt_T indir; // global option: PV_NONE;
// local option: indirect option index
char_u *def_val[2]; // default values for variable (vi and vim)
LastSet last_set; // script in which the option was last set
# define SCTX_INIT , { 0, 0, 0 }
} vimoption_T;
#define VI_DEFAULT 0 // def_val[VI_DEFAULT] is Vi default value
#define VIM_DEFAULT 1 // def_val[VIM_DEFAULT] is Vim default value
/*
* Flags
*/
#define P_BOOL 0x01U // the option is boolean
#define P_NUM 0x02U // the option is numeric
#define P_STRING 0x04U // the option is a string
#define P_ALLOCED 0x08U // the string option is in allocated memory,
// must use free_string_option() when
// assigning new value. Not set if default is
// the same.
#define P_EXPAND 0x10U // environment expansion. NOTE: P_EXPAND can
// never be used for local or hidden options
#define P_NODEFAULT 0x40U // don't set to default value
#define P_DEF_ALLOCED 0x80U // default value is in allocated memory, must
// use free() when assigning new value
#define P_WAS_SET 0x100U // option has been set/reset
#define P_NO_MKRC 0x200U // don't include in :mkvimrc output
#define P_VI_DEF 0x400U // Use Vi default for Vim
#define P_VIM 0x800U // Vim option
// when option changed, what to display:
#define P_RSTAT 0x1000U ///< redraw status lines
#define P_RWIN 0x2000U ///< redraw current window and recompute text
#define P_RBUF 0x4000U ///< redraw current buffer and recompute text
#define P_RALL 0x6000U ///< redraw all windows
#define P_RCLR 0x7000U ///< clear and redraw all
#define P_COMMA 0x8000U ///< comma separated list
#define P_ONECOMMA 0x18000U ///< P_COMMA and cannot have two consecutive
///< commas
#define P_NODUP 0x20000U ///< don't allow duplicate strings
#define P_FLAGLIST 0x40000U ///< list of single-char flags
#define P_SECURE 0x80000U ///< cannot change in modeline or secure mode
#define P_GETTEXT 0x100000U ///< expand default value with _()
#define P_NOGLOB 0x200000U ///< do not use local value for global vimrc
#define P_NFNAME 0x400000U ///< only normal file name chars allowed
#define P_INSECURE 0x800000U ///< option was set from a modeline
#define P_PRI_MKRC 0x1000000U ///< priority for :mkvimrc (setting option
///< has side effects)
#define P_NO_ML 0x2000000U ///< not allowed in modeline
#define P_CURSWANT 0x4000000U ///< update curswant required; not needed
///< when there is a redraw flag
#define P_NO_DEF_EXP 0x8000000U ///< Do not expand default value.
#define P_RWINONLY 0x10000000U ///< only redraw current window
#define P_NDNAME 0x20000000U ///< only normal dir name chars allowed
#define P_UI_OPTION 0x40000000U ///< send option to remote ui
#define P_MLE 0x80000000U ///< under control of 'modelineexpr'
#define HIGHLIGHT_INIT \
"8:SpecialKey,~:EndOfBuffer,z:TermCursor,Z:TermCursorNC,@:NonText," \
"d:Directory,e:ErrorMsg,i:IncSearch,l:Search,m:MoreMsg,M:ModeMsg,n:LineNr," \
"N:CursorLineNr,r:Question,s:StatusLine,S:StatusLineNC,c:VertSplit,t:Title," \
"v:Visual,V:VisualNOS,w:WarningMsg,W:WildMenu,f:Folded,F:FoldColumn," \
"A:DiffAdd,C:DiffChange,D:DiffDelete,T:DiffText,>:SignColumn,-:Conceal," \
"B:SpellBad,P:SpellCap,R:SpellRare,L:SpellLocal,+:Pmenu,=:PmenuSel," \
"x:PmenuSbar,X:PmenuThumb,*:TabLine,#:TabLineSel,_:TabLineFill," \
"!:CursorColumn,.:CursorLine,o:ColorColumn,q:QuickFixLine," \
"0:Whitespace,I:NormalNC"
/*
* options[] is initialized here.
* The order of the options MUST be alphabetic for ":set all" and findoption().
* All option names MUST start with a lowercase letter (for findoption()).
* Exception: "t_" options are at the end.
* The options with a NULL variable are 'hidden': a set command for them is
* ignored and they are not printed.
*/
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "options.generated.h"
#endif
#define PARAM_COUNT ARRAY_SIZE(options)
static char *(p_ambw_values[]) = { "single", "double", NULL };
static char *(p_bg_values[]) = { "light", "dark", NULL };
static char *(p_nf_values[]) = { "bin", "octal", "hex", "alpha", NULL };
static char *(p_ff_values[]) = { FF_UNIX, FF_DOS, FF_MAC, NULL };
static char *(p_wak_values[]) = { "yes", "menu", "no", NULL };
static char *(p_mousem_values[]) = { "extend", "popup", "popup_setpos",
"mac", NULL };
static char *(p_sel_values[]) = { "inclusive", "exclusive", "old", NULL };
static char *(p_slm_values[]) = { "mouse", "key", "cmd", NULL };
static char *(p_km_values[]) = { "startsel", "stopsel", NULL };
static char *(p_scbopt_values[]) = { "ver", "hor", "jump", NULL };
static char *(p_debug_values[]) = { "msg", "throw", "beep", NULL };
static char *(p_ead_values[]) = { "both", "ver", "hor", NULL };
static char *(p_buftype_values[]) = { "nofile", "nowrite", "quickfix",
"help", "acwrite", "terminal", NULL };
static char *(p_bufhidden_values[]) = { "hide", "unload", "delete",
"wipe", NULL };
static char *(p_bs_values[]) = { "indent", "eol", "start", NULL };
static char *(p_fdm_values[]) = { "manual", "expr", "marker", "indent",
"syntax", "diff", NULL };
static char *(p_fcl_values[]) = { "all", NULL };
static char *(p_cot_values[]) = { "menu", "menuone", "longest", "preview",
"noinsert", "noselect", NULL };
static char *(p_icm_values[]) = { "nosplit", "split", NULL };
static char *(p_scl_values[]) = { "yes", "no", "auto", "auto:1", "auto:2",
"auto:3", "auto:4", "auto:5", "auto:6", "auto:7", "auto:8", "auto:9",
"yes:1", "yes:2", "yes:3", "yes:4", "yes:5", "yes:6", "yes:7", "yes:8",
"yes:9", NULL };
/// All possible flags for 'shm'.
static char_u SHM_ALL[] = {
SHM_RO, SHM_MOD, SHM_FILE, SHM_LAST, SHM_TEXT, SHM_LINES, SHM_NEW, SHM_WRI,
SHM_ABBREVIATIONS, SHM_WRITE, SHM_TRUNC, SHM_TRUNCALL, SHM_OVER,
SHM_OVERALL, SHM_SEARCH, SHM_ATTENTION, SHM_INTRO, SHM_COMPLETIONMENU,
SHM_RECORDING, SHM_FILEINFO, SHM_SEARCHCOUNT,
0,
};
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "option.c.generated.h"
#endif
/// Append string with escaped commas
static char *strcpy_comma_escaped(char *dest, const char *src, const size_t len)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
size_t shift = 0;
for (size_t i = 0; i < len; i++) {
if (src[i] == ',') {
dest[i + shift++] = '\\';
}
dest[i + shift] = src[i];
}
return &dest[len + shift];
}
/// Compute length of a colon-separated value, doubled and with some suffixes
///
/// @param[in] val Colon-separated array value.
/// @param[in] common_suf_len Length of the common suffix which is appended to
/// each item in the array, twice.
/// @param[in] single_suf_len Length of the suffix which is appended to each
/// item in the array once.
///
/// @return Length of the comma-separated string array that contains each item
/// in the original array twice with suffixes with given length
/// (common_suf is present after each new item, single_suf is present
/// after half of the new items) and with commas after each item, commas
/// inside the values are escaped.
static inline size_t compute_double_colon_len(const char *const val,
const size_t common_suf_len,
const size_t single_suf_len)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_PURE
{
if (val == NULL || *val == NUL) {
return 0;
}
size_t ret = 0;
const void *iter = NULL;
do {
size_t dir_len;
const char *dir;
iter = vim_env_iter(':', val, iter, &dir, &dir_len);
if (dir != NULL && dir_len > 0) {
ret += ((dir_len + memcnt(dir, ',', dir_len) + common_suf_len
+ !after_pathsep(dir, dir + dir_len)) * 2
+ single_suf_len);
}
} while (iter != NULL);
return ret;
}
#define NVIM_SIZE (sizeof("nvim") - 1)
/// Add directories to a comma-separated array from a colon-separated one
///
/// Commas are escaped in process. To each item PATHSEP "nvim" is appended in
/// addition to suf1 and suf2.
///
/// @param[in,out] dest Destination comma-separated array.
/// @param[in] val Source colon-separated array.
/// @param[in] suf1 If not NULL, suffix appended to destination. Prior to it
/// directory separator is appended. Suffix must not contain
/// commas.
/// @param[in] len1 Length of the suf1.
/// @param[in] suf2 If not NULL, another suffix appended to destination. Again
/// with directory separator behind. Suffix must not contain
/// commas.
/// @param[in] len2 Length of the suf2.
/// @param[in] forward If true, iterate over val in forward direction.
/// Otherwise in reverse.
///
/// @return (dest + appended_characters_length)
static inline char *add_colon_dirs(char *dest, const char *const val,
const char *const suf1, const size_t len1,
const char *const suf2, const size_t len2,
const bool forward)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_RET FUNC_ATTR_NONNULL_ARG(1)
{
if (val == NULL || *val == NUL) {
return dest;
}
const void *iter = NULL;
do {
size_t dir_len;
const char *dir;
iter = (forward ? vim_env_iter : vim_env_iter_rev)(':', val, iter, &dir,
&dir_len);
if (dir != NULL && dir_len > 0) {
dest = strcpy_comma_escaped(dest, dir, dir_len);
if (!after_pathsep(dest - 1, dest)) {
*dest++ = PATHSEP;
}
memmove(dest, "nvim", NVIM_SIZE);
dest += NVIM_SIZE;
if (suf1 != NULL) {
*dest++ = PATHSEP;
memmove(dest, suf1, len1);
dest += len1;
if (suf2 != NULL) {
*dest++ = PATHSEP;
memmove(dest, suf2, len2);
dest += len2;
}
}
*dest++ = ',';
}
} while (iter != NULL);
return dest;
}
/// Adds directory `dest` to a comma-separated list of directories.
///
/// Commas in the added directory are escaped.
///
/// Windows: Appends "nvim-data" instead of "nvim" if `type` is kXDGDataHome.
///
/// @see get_xdg_home
///
/// @param[in,out] dest Destination comma-separated array.
/// @param[in] dir Directory to append.
/// @param[in] type Decides whether to append "nvim" (Win: or "nvim-data").
/// @param[in] suf1 If not NULL, suffix appended to destination. Prior to it
/// directory separator is appended. Suffix must not contain
/// commas.
/// @param[in] len1 Length of the suf1.
/// @param[in] suf2 If not NULL, another suffix appended to destination. Again
/// with directory separator behind. Suffix must not contain
/// commas.
/// @param[in] len2 Length of the suf2.
/// @param[in] forward If true, iterate over val in forward direction.
/// Otherwise in reverse.
///
/// @return (dest + appended_characters_length)
static inline char *add_dir(char *dest, const char *const dir,
const size_t dir_len, const XDGVarType type,
const char *const suf1, const size_t len1,
const char *const suf2, const size_t len2)
FUNC_ATTR_NONNULL_RET FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
{
if (dir == NULL || dir_len == 0) {
return dest;
}
dest = strcpy_comma_escaped(dest, dir, dir_len);
bool append_nvim = (type == kXDGDataHome || type == kXDGConfigHome);
if (append_nvim) {
if (!after_pathsep(dest - 1, dest)) {
*dest++ = PATHSEP;
}
#if defined(WIN32)
size_t size = (type == kXDGDataHome ? sizeof("nvim-data") - 1 : NVIM_SIZE);
memmove(dest, (type == kXDGDataHome ? "nvim-data" : "nvim"), size);
dest += size;
#else
memmove(dest, "nvim", NVIM_SIZE);
dest += NVIM_SIZE;
#endif
if (suf1 != NULL) {
*dest++ = PATHSEP;
memmove(dest, suf1, len1);
dest += len1;
if (suf2 != NULL) {
*dest++ = PATHSEP;
memmove(dest, suf2, len2);
dest += len2;
}
}
}
*dest++ = ',';
return dest;
}
/// Sets &runtimepath to default value.
///
/// Windows: Uses "…/nvim-data" for kXDGDataHome to avoid storing
/// configuration and data files in the same path. #4403
static void set_runtimepath_default(void)
{
size_t rtp_size = 0;
char *const data_home = stdpaths_get_xdg_var(kXDGDataHome);
char *const config_home = stdpaths_get_xdg_var(kXDGConfigHome);
char *const vimruntime = vim_getenv("VIMRUNTIME");
char *const data_dirs = stdpaths_get_xdg_var(kXDGDataDirs);
char *const config_dirs = stdpaths_get_xdg_var(kXDGConfigDirs);
#define SITE_SIZE (sizeof("site") - 1)
#define AFTER_SIZE (sizeof("after") - 1)
size_t data_len = 0;
size_t config_len = 0;
size_t vimruntime_len = 0;
if (data_home != NULL) {
data_len = strlen(data_home);
if (data_len != 0) {
#if defined(WIN32)
size_t nvim_size = (sizeof("nvim-data") - 1);
#else
size_t nvim_size = NVIM_SIZE;
#endif
rtp_size += ((data_len + memcnt(data_home, ',', data_len)
+ nvim_size + 1 + SITE_SIZE + 1
+ !after_pathsep(data_home, data_home + data_len)) * 2
+ AFTER_SIZE + 1);
}
}
if (config_home != NULL) {
config_len = strlen(config_home);
if (config_len != 0) {
rtp_size += ((config_len + memcnt(config_home, ',', config_len)
+ NVIM_SIZE + 1
+ !after_pathsep(config_home, config_home + config_len)) * 2
+ AFTER_SIZE + 1);
}
}
if (vimruntime != NULL) {
vimruntime_len = strlen(vimruntime);
if (vimruntime_len != 0) {
rtp_size += vimruntime_len + memcnt(vimruntime, ',', vimruntime_len) + 1;
}
}
rtp_size += compute_double_colon_len(data_dirs, NVIM_SIZE + 1 + SITE_SIZE + 1,
AFTER_SIZE + 1);
rtp_size += compute_double_colon_len(config_dirs, NVIM_SIZE + 1,
AFTER_SIZE + 1);
if (rtp_size == 0) {
return;
}
char *const rtp = xmalloc(rtp_size);
char *rtp_cur = rtp;
rtp_cur = add_dir(rtp_cur, config_home, config_len, kXDGConfigHome,
NULL, 0, NULL, 0);
rtp_cur = add_colon_dirs(rtp_cur, config_dirs, NULL, 0, NULL, 0, true);
rtp_cur = add_dir(rtp_cur, data_home, data_len, kXDGDataHome,
"site", SITE_SIZE, NULL, 0);
rtp_cur = add_colon_dirs(rtp_cur, data_dirs, "site", SITE_SIZE, NULL, 0,
true);
rtp_cur = add_dir(rtp_cur, vimruntime, vimruntime_len, kXDGNone,
NULL, 0, NULL, 0);
rtp_cur = add_colon_dirs(rtp_cur, data_dirs, "site", SITE_SIZE,
"after", AFTER_SIZE, false);
rtp_cur = add_dir(rtp_cur, data_home, data_len, kXDGDataHome,
"site", SITE_SIZE, "after", AFTER_SIZE);
rtp_cur = add_colon_dirs(rtp_cur, config_dirs, "after", AFTER_SIZE, NULL, 0,
false);
rtp_cur = add_dir(rtp_cur, config_home, config_len, kXDGConfigHome,
"after", AFTER_SIZE, NULL, 0);
// Strip trailing comma.
rtp_cur[-1] = NUL;
assert((size_t) (rtp_cur - rtp) == rtp_size);
#undef SITE_SIZE
#undef AFTER_SIZE
set_string_default("runtimepath", rtp, true);
// Make a copy of 'rtp' for 'packpath'
set_string_default("packpath", rtp, false);
xfree(data_dirs);
xfree(config_dirs);
xfree(data_home);
xfree(config_home);
xfree(vimruntime);
}
#undef NVIM_SIZE
/*
* Initialize the options, first part.
*
* Called only once from main(), just after creating the first buffer.
*/
void set_init_1(void)
{
int opt_idx;
langmap_init();
// Be nocompatible
p_cp = false;
/*
* Find default value for 'shell' option.
* Don't use it if it is empty.
*/
{
const char *shell = os_getenv("SHELL");
if (shell != NULL) {
set_string_default("sh", (char *) shell, false);
}
}
/*
* Set the default for 'backupskip' to include environment variables for
* temp files.
*/
{
# ifdef UNIX
static char *(names[4]) = {"", "TMPDIR", "TEMP", "TMP"};
# else
static char *(names[3]) = {"TMPDIR", "TEMP", "TMP"};
# endif
int len;
garray_T ga;
ga_init(&ga, 1, 100);
for (size_t n = 0; n < ARRAY_SIZE(names); n++) {
bool mustfree = true;
char *p;
# ifdef UNIX
if (*names[n] == NUL) {
# ifdef __APPLE__
p = "/private/tmp";
# else
p = "/tmp";
# endif
mustfree = false;
} else
# endif
{
p = vim_getenv(names[n]);
}
if (p != NULL && *p != NUL) {
// First time count the NUL, otherwise count the ','.
len = (int)strlen(p) + 3;
ga_grow(&ga, len);
if (!GA_EMPTY(&ga)) {
STRCAT(ga.ga_data, ",");
}
STRCAT(ga.ga_data, p);
add_pathsep(ga.ga_data);
STRCAT(ga.ga_data, "*");
ga.ga_len += len;
}
if(mustfree) {
xfree(p);
}
}
if (ga.ga_data != NULL) {
set_string_default("bsk", ga.ga_data, true);
}
}
{
char_u *cdpath;
char_u *buf;
int i;
int j;
// Initialize the 'cdpath' option's default value.
cdpath = (char_u *)vim_getenv("CDPATH");
if (cdpath != NULL) {
buf = xmalloc(2 * STRLEN(cdpath) + 2);
{
buf[0] = ','; // start with ",", current dir first
j = 1;
for (i = 0; cdpath[i] != NUL; i++) {
if (vim_ispathlistsep(cdpath[i])) {
buf[j++] = ',';
} else {
if (cdpath[i] == ' ' || cdpath[i] == ',') {
buf[j++] = '\\';
}
buf[j++] = cdpath[i];
}
}
buf[j] = NUL;
opt_idx = findoption("cdpath");
if (opt_idx >= 0) {
options[opt_idx].def_val[VI_DEFAULT] = buf;
options[opt_idx].flags |= P_DEF_ALLOCED;
} else {
xfree(buf); // cannot happen
}
}
xfree(cdpath);
}
}
#if defined(MSWIN) || defined(MAC)
// Set print encoding on platforms that don't default to latin1
set_string_default("printencoding", "hp-roman8", false);
#endif
// 'printexpr' must be allocated to be able to evaluate it.
set_string_default("printexpr",
#ifdef UNIX
"system(['lpr'] "
"+ (empty(&printdevice)?[]:['-P', &printdevice]) "
"+ [v:fname_in])"
". delete(v:fname_in)"
"+ v:shell_error",
#elif defined(MSWIN)
"system(['copy', v:fname_in, "
"empty(&printdevice)?'LPT1':&printdevice])"
". delete(v:fname_in)",
#else
"",
#endif
false);
char *backupdir = stdpaths_user_data_subpath("backup", 0, true);
const size_t backupdir_len = strlen(backupdir);
backupdir = xrealloc(backupdir, backupdir_len + 3);
memmove(backupdir + 2, backupdir, backupdir_len + 1);
memmove(backupdir, ".,", 2);
set_string_default("viewdir", stdpaths_user_data_subpath("view", 0, true),
true);
set_string_default("backupdir", backupdir, true);
set_string_default("directory", stdpaths_user_data_subpath("swap", 2, true),
true);
set_string_default("undodir", stdpaths_user_data_subpath("undo", 0, true),
true);
// Set default for &runtimepath. All necessary expansions are performed in
// this function.
set_runtimepath_default();
/*
* Set all the options (except the terminal options) to their default
* value. Also set the global value for local options.
*/
set_options_default(0);
curbuf->b_p_initialized = true;
curbuf->b_p_ar = -1; // no local 'autoread' value
curbuf->b_p_ul = NO_LOCAL_UNDOLEVEL;
check_buf_options(curbuf);
check_win_options(curwin);
check_options();
// Set all options to their Vim default
set_options_default(OPT_FREE);
// set 'laststatus'
last_status(false);
// Must be before option_expand(), because that one needs vim_isIDc()
didset_options();
// Use the current chartab for the generic chartab. This is not in
// didset_options() because it only depends on 'encoding'.
init_spell_chartab();
/*
* Expand environment variables and things like "~" for the defaults.
* If option_expand() returns non-NULL the variable is expanded. This can
* only happen for non-indirect options.
* Also set the default to the expanded value, so ":set" does not list
* them.
* Don't set the P_ALLOCED flag, because we don't want to free the
* default.
*/
for (opt_idx = 0; options[opt_idx].fullname; opt_idx++) {
if (options[opt_idx].flags & P_NO_DEF_EXP) {
continue;
}
char *p;
if ((options[opt_idx].flags & P_GETTEXT)
&& options[opt_idx].var != NULL) {
p = _(*(char **)options[opt_idx].var);
} else {
p = (char *) option_expand(opt_idx, NULL);
}
if (p != NULL) {
p = xstrdup(p);
*(char **)options[opt_idx].var = p;
/* VIMEXP
* Defaults for all expanded options are currently the same for Vi
* and Vim. When this changes, add some code here! Also need to
* split P_DEF_ALLOCED in two.
*/
if (options[opt_idx].flags & P_DEF_ALLOCED) {
xfree(options[opt_idx].def_val[VI_DEFAULT]);
}
options[opt_idx].def_val[VI_DEFAULT] = (char_u *)p;
options[opt_idx].flags |= P_DEF_ALLOCED;
}
}
save_file_ff(curbuf); // Buffer is unchanged
/* Detect use of mlterm.
* Mlterm is a terminal emulator akin to xterm that has some special
* abilities (bidi namely).
* NOTE: mlterm's author is being asked to 'set' a variable
* instead of an environment variable due to inheritance.
*/
if (os_env_exists("MLTERM")) {
set_option_value("tbidi", 1L, NULL, 0);
}
didset_options2();
lang_init();
// enc_locale() will try to find the encoding of the current locale.
// This will be used when 'default' is used as encoding specifier
// in 'fileencodings'
char_u *p = enc_locale();
if (p == NULL) {
// use utf-8 as 'default' if locale encoding can't be detected.
p = (char_u *)xmemdupz(S_LEN("utf-8"));
}
fenc_default = p;
#ifdef HAVE_WORKING_LIBINTL
// GNU gettext 0.10.37 supports this feature: set the codeset used for
// translated messages independently from the current locale.
(void)bind_textdomain_codeset(PROJECT_NAME, (char *)p_enc);
#endif
// Set the default for 'helplang'.
set_helplang_default(get_mess_lang());
}
/*
* Set an option to its default value.
* This does not take care of side effects!
*/
static void
set_option_default(
int opt_idx,
int opt_flags, // OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL
int compatible // use Vi default value
)
{
char_u *varp; // pointer to variable for current option
int dvi; // index in def_val[]
int both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
varp = get_varp_scope(&(options[opt_idx]), both ? OPT_LOCAL : opt_flags);
uint32_t flags = options[opt_idx].flags;
if (varp != NULL) { // skip hidden option, nothing to do for it
dvi = ((flags & P_VI_DEF) || compatible) ? VI_DEFAULT : VIM_DEFAULT;
if (flags & P_STRING) {
/* Use set_string_option_direct() for local options to handle
* freeing and allocating the value. */
if (options[opt_idx].indir != PV_NONE) {
set_string_option_direct(NULL, opt_idx,
options[opt_idx].def_val[dvi], opt_flags, 0);
} else {
if ((opt_flags & OPT_FREE) && (flags & P_ALLOCED)) {
free_string_option(*(char_u **)(varp));
}
*(char_u **)varp = options[opt_idx].def_val[dvi];
options[opt_idx].flags &= ~P_ALLOCED;
}
} else if (flags & P_NUM) {
if (options[opt_idx].indir == PV_SCROLL) {
win_comp_scroll(curwin);
} else {
*(long *)varp = (long)(intptr_t)options[opt_idx].def_val[dvi];
// May also set global value for local option.
if (both) {
*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
*(long *)varp;
}
}
} else { // P_BOOL
*(int *)varp = (int)(intptr_t)options[opt_idx].def_val[dvi];
#ifdef UNIX
// 'modeline' defaults to off for root
if (options[opt_idx].indir == PV_ML && getuid() == ROOT_UID) {
*(int *)varp = false;
}
#endif
// May also set global value for local option.
if (both) {
*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) =
*(int *)varp;
}
}
// The default value is not insecure.
uint32_t *flagsp = insecure_flag(opt_idx, opt_flags);
*flagsp = *flagsp & ~P_INSECURE;
}
set_option_sctx_idx(opt_idx, opt_flags, current_sctx);
}
/*
* Set all options (except terminal options) to their default value.
*/
static void
set_options_default(
int opt_flags // OPT_FREE, OPT_LOCAL and/or OPT_GLOBAL
)
{
for (int i = 0; options[i].fullname; i++) {
if (!(options[i].flags & P_NODEFAULT)) {
set_option_default(i, opt_flags, p_cp);
}
}
// The 'scroll' option must be computed for all windows.
FOR_ALL_TAB_WINDOWS(tp, wp) {
win_comp_scroll(wp);
}
parse_cino(curbuf);
}
/// Set the Vi-default value of a string option.
/// Used for 'sh', 'backupskip' and 'term'.
///
/// @param name The name of the option
/// @param val The value of the option
/// @param allocated If true, do not copy default as it was already allocated.
static void set_string_default(const char *name, char *val, bool allocated)
FUNC_ATTR_NONNULL_ALL
{
int opt_idx = findoption(name);
if (opt_idx >= 0) {
if (options[opt_idx].flags & P_DEF_ALLOCED) {
xfree(options[opt_idx].def_val[VI_DEFAULT]);
}
options[opt_idx].def_val[VI_DEFAULT] = (char_u *) (
allocated
? (char_u *) val
: (char_u *) xstrdup(val));
options[opt_idx].flags |= P_DEF_ALLOCED;
}
}
/*
* Set the Vi-default value of a number option.
* Used for 'lines' and 'columns'.
*/
void set_number_default(char *name, long val)
{
int opt_idx;
opt_idx = findoption(name);
if (opt_idx >= 0) {
options[opt_idx].def_val[VI_DEFAULT] = (char_u *)(intptr_t)val;
}
}
#if defined(EXITFREE)
/// Free all options.
void free_all_options(void)
{
for (int i = 0; options[i].fullname; i++) {
if (options[i].indir == PV_NONE) {
// global option: free value and default value.
if ((options[i].flags & P_ALLOCED) && options[i].var != NULL) {
free_string_option(*(char_u **)options[i].var);
}
if (options[i].flags & P_DEF_ALLOCED) {
free_string_option(options[i].def_val[VI_DEFAULT]);
}
} else if (options[i].var != VAR_WIN && (options[i].flags & P_STRING)) {
// buffer-local option: free global value
free_string_option(*(char_u **)options[i].var);
}
}
}
#endif
/// Initialize the options, part two: After getting Rows and Columns.
void set_init_2(bool headless)
{
int idx;
// 'scroll' defaults to half the window height. The stored default is zero,
// which results in the actual value computed from the window height.
idx = findoption("scroll");
if (idx >= 0 && !(options[idx].flags & P_WAS_SET)) {
set_option_default(idx, OPT_LOCAL, p_cp);
}
comp_col();
/*
* 'window' is only for backwards compatibility with Vi.
* Default is Rows - 1.
*/
if (!option_was_set("window")) {
p_window = Rows - 1;
}
set_number_default("window", Rows - 1);
(void)parse_printoptions(); // parse 'printoptions' default value
}
/// Initialize the options, part three: After reading the .vimrc
void set_init_3(void)
{
parse_shape_opt(SHAPE_CURSOR); // set cursor shapes from 'guicursor'
// Set 'shellpipe' and 'shellredir', depending on the 'shell' option.
// This is done after other initializations, where 'shell' might have been
// set, but only if they have not been set before.
int idx_srr = findoption("srr");
int do_srr = (idx_srr < 0)
? false
: !(options[idx_srr].flags & P_WAS_SET);
int idx_sp = findoption("sp");
int do_sp = (idx_sp < 0)
? false
: !(options[idx_sp].flags & P_WAS_SET);
size_t len = 0;
char_u *p = (char_u *)invocation_path_tail(p_sh, &len);
p = vim_strnsave(p, len);
{
//
// Default for p_sp is "| tee", for p_srr is ">".
// For known shells it is changed here to include stderr.
//
if ( fnamecmp(p, "csh") == 0
|| fnamecmp(p, "tcsh") == 0
) {
if (do_sp) {
p_sp = (char_u *)"|& tee";
options[idx_sp].def_val[VI_DEFAULT] = p_sp;
}
if (do_srr) {
p_srr = (char_u *)">&";
options[idx_srr].def_val[VI_DEFAULT] = p_srr;
}
} else if ( fnamecmp(p, "sh") == 0
|| fnamecmp(p, "ksh") == 0
|| fnamecmp(p, "mksh") == 0
|| fnamecmp(p, "pdksh") == 0
|| fnamecmp(p, "zsh") == 0
|| fnamecmp(p, "zsh-beta") == 0
|| fnamecmp(p, "bash") == 0
|| fnamecmp(p, "fish") == 0
) {
if (do_sp) {
p_sp = (char_u *)"2>&1| tee";
options[idx_sp].def_val[VI_DEFAULT] = p_sp;
}
if (do_srr) {
p_srr = (char_u *)">%s 2>&1";
options[idx_srr].def_val[VI_DEFAULT] = p_srr;
}
}
xfree(p);
}
if (BUFEMPTY()) {
int idx_ffs = findoption_len(S_LEN("ffs"));
// Apply the first entry of 'fileformats' to the initial buffer.
if (idx_ffs >= 0 && (options[idx_ffs].flags & P_WAS_SET)) {
set_fileformat(default_fileformat(), OPT_LOCAL);
}
}
set_title_defaults(); // 'title', 'icon'
}
/*
* When 'helplang' is still at its default value, set it to "lang".
* Only the first two characters of "lang" are used.
*/
void set_helplang_default(const char *lang)
{
if (lang == NULL) {
return;
}
const size_t lang_len = strlen(lang);
if (lang_len < 2) { // safety check
return;
}
int idx = findoption("hlg");
if (idx >= 0 && !(options[idx].flags & P_WAS_SET)) {
if (options[idx].flags & P_ALLOCED) {
free_string_option(p_hlg);
}
p_hlg = (char_u *)xmemdupz(lang, lang_len);
// zh_CN becomes "cn", zh_TW becomes "tw".
if (STRNICMP(p_hlg, "zh_", 3) == 0 && STRLEN(p_hlg) >= 5) {
p_hlg[0] = (char_u)TOLOWER_ASC(p_hlg[3]);
p_hlg[1] = (char_u)TOLOWER_ASC(p_hlg[4]);
} else if (STRLEN(p_hlg) >= 1 && *p_hlg == 'C') {
// any C like setting, such as C.UTF-8, becomes "en"
p_hlg[0] = 'e';
p_hlg[1] = 'n';
}
p_hlg[2] = NUL;
options[idx].flags |= P_ALLOCED;
}
}
/*
* 'title' and 'icon' only default to true if they have not been set or reset
* in .vimrc and we can read the old value.
* When 'title' and 'icon' have been reset in .vimrc, we won't even check if
* they can be reset. This reduces startup time when using X on a remote
* machine.
*/
void set_title_defaults(void)
{
int idx1;
/*
* If GUI is (going to be) used, we can always set the window title and
* icon name. Saves a bit of time, because the X11 display server does
* not need to be contacted.
*/
idx1 = findoption("title");
if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET)) {
options[idx1].def_val[VI_DEFAULT] = (char_u *)(intptr_t)0;
p_title = 0;
}
idx1 = findoption("icon");
if (idx1 >= 0 && !(options[idx1].flags & P_WAS_SET)) {
options[idx1].def_val[VI_DEFAULT] = (char_u *)(intptr_t)0;
p_icon = 0;
}
}
// Parse 'arg' for option settings.
//
// 'arg' may be IObuff, but only when no errors can be present and option
// does not need to be expanded with option_expand().
// "opt_flags":
// 0 for ":set"
// OPT_GLOBAL for ":setglobal"
// OPT_LOCAL for ":setlocal" and a modeline
// OPT_MODELINE for a modeline
// OPT_WINONLY to only set window-local options
// OPT_NOWIN to skip setting window-local options
//
// returns FAIL if an error is detected, OK otherwise
int do_set(
char_u *arg, // option string (may be written to!)
int opt_flags
)
{
int opt_idx;
char_u *errmsg;
char_u errbuf[80];
char_u *startarg;
int prefix; // 1: nothing, 0: "no", 2: "inv" in front of name
char_u nextchar; // next non-white char after option name
int afterchar; // character just after option name
int len;
int i;
varnumber_T value;
int key;
uint32_t flags; // flags for current option
char_u *varp = NULL; // pointer to variable for current option
int did_show = false; // already showed one value
int adding; // "opt+=arg"
int prepending; // "opt^=arg"
int removing; // "opt-=arg"
int cp_val = 0;
if (*arg == NUL) {
showoptions(0, opt_flags);
did_show = true;
goto theend;
}
while (*arg != NUL) { // loop to process all options
errmsg = NULL;
startarg = arg; // remember for error message
if (STRNCMP(arg, "all", 3) == 0 && !isalpha(arg[3])
&& !(opt_flags & OPT_MODELINE)) {
/*
* ":set all" show all options.
* ":set all&" set all options to their default value.
*/
arg += 3;
if (*arg == '&') {
arg++;
// Only for :set command set global value of local options.
set_options_default(OPT_FREE | opt_flags);
didset_options();
didset_options2();
ui_refresh_options();
redraw_all_later(CLEAR);
} else {
showoptions(1, opt_flags);
did_show = true;
}
} else {
prefix = 1;
if (STRNCMP(arg, "no", 2) == 0) {
prefix = 0;
arg += 2;
} else if (STRNCMP(arg, "inv", 3) == 0) {
prefix = 2;
arg += 3;
}
// find end of name
key = 0;
if (*arg == '<') {
opt_idx = -1;
// look out for <t_>;>
if (arg[1] == 't' && arg[2] == '_' && arg[3] && arg[4]) {
len = 5;
} else {
len = 1;
while (arg[len] != NUL && arg[len] != '>') {
len++;
}
}
if (arg[len] != '>') {
errmsg = e_invarg;
goto skip;
}
if (arg[1] == 't' && arg[2] == '_') { // could be term code
opt_idx = findoption_len((const char *)arg + 1, (size_t)(len - 1));
}
len++;
if (opt_idx == -1) {
key = find_key_option(arg + 1, true);
}
} else {
len = 0;
// The two characters after "t_" may not be alphanumeric.
if (arg[0] == 't' && arg[1] == '_' && arg[2] && arg[3]) {
len = 4;
} else {
while (ASCII_ISALNUM(arg[len]) || arg[len] == '_') {
len++;
}
}
opt_idx = findoption_len((const char *)arg, (size_t)len);
if (opt_idx == -1) {
key = find_key_option(arg, false);
}
}
// remember character after option name
afterchar = arg[len];
// skip white space, allow ":set ai ?"
while (ascii_iswhite(arg[len])) {
len++;
}
adding = false;
prepending = false;
removing = false;
if (arg[len] != NUL && arg[len + 1] == '=') {
if (arg[len] == '+') {
adding = true; // "+="
len++;
} else if (arg[len] == '^') {
prepending = true; // "^="
len++;
} else if (arg[len] == '-') {
removing = true; // "-="
len++;
}
}
nextchar = arg[len];
if (opt_idx == -1 && key == 0) { // found a mismatch: skip
errmsg = (char_u *)N_("E518: Unknown option");
goto skip;
}
if (opt_idx >= 0) {
if (options[opt_idx].var == NULL) { // hidden option: skip
// Only give an error message when requesting the value of
// a hidden option, ignore setting it.
if (vim_strchr((char_u *)"=:!&<", nextchar) == NULL
&& (!(options[opt_idx].flags & P_BOOL)
|| nextchar == '?')) {
errmsg = (char_u *)_(e_unsupportedoption);
}
goto skip;
}
flags = options[opt_idx].flags;
varp = get_varp_scope(&(options[opt_idx]), opt_flags);
} else {
flags = P_STRING;
}
/* Skip all options that are not window-local (used when showing
* an already loaded buffer in a window). */
if ((opt_flags & OPT_WINONLY)
&& (opt_idx < 0 || options[opt_idx].var != VAR_WIN))
goto skip;
// Skip all options that are window-local (used for :vimgrep).
if ((opt_flags & OPT_NOWIN) && opt_idx >= 0
&& options[opt_idx].var == VAR_WIN) {
goto skip;
}
// Disallow changing some options from modelines.
if (opt_flags & OPT_MODELINE) {
if (flags & (P_SECURE | P_NO_ML)) {
errmsg = (char_u *)_("E520: Not allowed in a modeline");
goto skip;
}
if ((flags & P_MLE) && !p_mle) {
errmsg = (char_u *)_(
"E992: Not allowed in a modeline when 'modelineexpr' is off");
goto skip;
}
// In diff mode some options are overruled. This avoids that
// 'foldmethod' becomes "marker" instead of "diff" and that
// "wrap" gets set.
if (curwin->w_p_diff
&& opt_idx >= 0 // shut up coverity warning
&& (options[opt_idx].indir == PV_FDM
|| options[opt_idx].indir == PV_WRAP)) {
goto skip;
}
}
// Disallow changing some options in the sandbox
if (sandbox != 0 && (flags & P_SECURE)) {
errmsg = (char_u *)_(e_sandbox);
goto skip;
}
if (vim_strchr((char_u *)"?=:!&<", nextchar) != NULL) {
arg += len;
cp_val = p_cp;
if (nextchar == '&' && arg[1] == 'v' && arg[2] == 'i') {
if (arg[3] == 'm') { // "opt&vim": set to Vim default
cp_val = false;
arg += 3;
} else { // "opt&vi": set to Vi default
cp_val = true;
arg += 2;
}
}
if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
&& arg[1] != NUL && !ascii_iswhite(arg[1])) {
errmsg = e_trailing;
goto skip;
}
}
/*
* allow '=' and ':' as MSDOS command.com allows only one
* '=' character per "set" command line. grrr. (jw)
*/
if (nextchar == '?'
|| (prefix == 1
&& vim_strchr((char_u *)"=:&<", nextchar) == NULL
&& !(flags & P_BOOL))) {
/*
* print value
*/
if (did_show) {
msg_putchar('\n'); // cursor below last one
} else {
gotocmdline(true); // cursor at status line
did_show = true; // remember that we did a line
}
if (opt_idx >= 0) {
showoneopt(&options[opt_idx], opt_flags);
if (p_verbose > 0) {
// Mention where the option was last set.
if (varp == options[opt_idx].var) {
option_last_set_msg(options[opt_idx].last_set);
} else if ((int)options[opt_idx].indir & PV_WIN) {
option_last_set_msg(curwin->w_p_script_ctx[
(int)options[opt_idx].indir & PV_MASK]);
} else if ((int)options[opt_idx].indir & PV_BUF) {
option_last_set_msg(curbuf->b_p_script_ctx[
(int)options[opt_idx].indir & PV_MASK]);
}
}
} else {
errmsg = (char_u *)N_("E846: Key code not set");
goto skip;
}
if (nextchar != '?'
&& nextchar != NUL && !ascii_iswhite(afterchar))
errmsg = e_trailing;
} else {
int value_is_replaced = !prepending && !adding && !removing;
int value_checked = false;
if (flags & P_BOOL) { // boolean
if (nextchar == '=' || nextchar == ':') {
errmsg = e_invarg;
goto skip;
}
/*
* ":set opt!": invert
* ":set opt&": reset to default value
* ":set opt<": reset to global value
*/
if (nextchar == '!') {
value = *(int *)(varp) ^ 1;
} else if (nextchar == '&') {
value = (int)(intptr_t)options[opt_idx].def_val[
((flags & P_VI_DEF) || cp_val)
? VI_DEFAULT : VIM_DEFAULT];
} else if (nextchar == '<') {
// For 'autoread' -1 means to use global value.
if ((int *)varp == &curbuf->b_p_ar
&& opt_flags == OPT_LOCAL) {
value = -1;
} else {
value = *(int *)get_varp_scope(&(options[opt_idx]),
OPT_GLOBAL);
}
} else {
/*
* ":set invopt": invert
* ":set opt" or ":set noopt": set or reset
*/
if (nextchar != NUL && !ascii_iswhite(afterchar)) {
errmsg = e_trailing;
goto skip;
}
if (prefix == 2) { // inv
value = *(int *)(varp) ^ 1;
} else {
value = prefix;
}
}
errmsg = (char_u *)set_bool_option(opt_idx, varp, (int)value,
opt_flags);
} else { // Numeric or string.
if (vim_strchr((const char_u *)"=:&<", nextchar) == NULL
|| prefix != 1) {
errmsg = e_invarg;
goto skip;
}
if (flags & P_NUM) { // numeric
// Different ways to set a number option:
// & set to default value
// < set to global value
// <xx> accept special key codes for 'wildchar'
// c accept any non-digit for 'wildchar'
// [-]0-9 set number
// other error
arg++;
if (nextchar == '&') {
value = (long)(intptr_t)options[opt_idx].def_val[
((flags & P_VI_DEF) || cp_val) ? VI_DEFAULT : VIM_DEFAULT];
} else if (nextchar == '<') {
// For 'undolevels' NO_LOCAL_UNDOLEVEL means to
// use the global value.
if ((long *)varp == &curbuf->b_p_ul && opt_flags == OPT_LOCAL) {
value = NO_LOCAL_UNDOLEVEL;
} else {
value = *(long *)get_varp_scope(
&(options[opt_idx]), OPT_GLOBAL);
}
} else if (((long *)varp == &p_wc
|| (long *)varp == &p_wcm)
&& (*arg == '<'
|| *arg == '^'
|| (*arg != NUL && (!arg[1] || ascii_iswhite(arg[1]))
&& !ascii_isdigit(*arg)))) {
value = string_to_key(arg);
if (value == 0 && (long *)varp != &p_wcm) {
errmsg = e_invarg;
goto skip;
}
} else if (*arg == '-' || ascii_isdigit(*arg)) {
// Allow negative, octal and hex numbers.
vim_str2nr(arg, NULL, &i, STR2NR_ALL, &value, NULL, 0);
if (arg[i] != NUL && !ascii_iswhite(arg[i])) {
errmsg = e_invarg;
goto skip;
}
} else {
errmsg = (char_u *)N_("E521: Number required after =");
goto skip;
}
if (adding) {
value = *(long *)varp + value;
}
if (prepending) {
value = *(long *)varp * value;
}
if (removing) {
value = *(long *)varp - value;
}
errmsg = (char_u *)set_num_option(opt_idx, varp, (long)value,
errbuf, sizeof(errbuf),
opt_flags);
} else if (opt_idx >= 0) { // String.
char_u *save_arg = NULL;
char_u *s = NULL;
char_u *oldval = NULL; // previous value if *varp
char_u *newval;
char_u *origval = NULL;
char *saved_origval = NULL;
char *saved_newval = NULL;
unsigned newlen;
int comma;
int bs;
int new_value_alloced; /* new string option
was allocated */
/* When using ":set opt=val" for a global option
* with a local value the local value will be
* reset, use the global value here. */
if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
&& ((int)options[opt_idx].indir & PV_BOTH))
varp = options[opt_idx].var;
/* The old value is kept until we are sure that the
* new value is valid. */
oldval = *(char_u **)varp;
// When setting the local value of a global
// option, the old value may be the global value.
if (((int)options[opt_idx].indir & PV_BOTH) && (opt_flags
& OPT_LOCAL)) {
origval = *(char_u **)get_varp(&options[opt_idx]);
} else {
origval = oldval;
}
if (nextchar == '&') { // set to default val
newval = options[opt_idx].def_val[
((flags & P_VI_DEF) || cp_val)
? VI_DEFAULT : VIM_DEFAULT];
/* expand environment variables and ~ (since the
* default value was already expanded, only
* required when an environment variable was set
* later */
new_value_alloced = true;
if (newval == NULL) {
newval = empty_option;
} else if (!(options[opt_idx].flags & P_NO_DEF_EXP)) {
s = option_expand(opt_idx, newval);
if (s == NULL) {
s = newval;
}
newval = vim_strsave(s);
} else {
newval = (char_u *)xstrdup((char *)newval);
}
} else if (nextchar == '<') { // set to global val
newval = vim_strsave(*(char_u **)get_varp_scope(
&(options[opt_idx]), OPT_GLOBAL));
new_value_alloced = true;
} else {
arg++; // jump to after the '=' or ':'
/*
* Set 'keywordprg' to ":help" if an empty
* value was passed to :set by the user.
* Misuse errbuf[] for the resulting string.
*/
if (varp == (char_u *)&p_kp
&& (*arg == NUL || *arg == ' ')) {
STRCPY(errbuf, ":help");
save_arg = arg;
arg = errbuf;
}
/*
* Convert 'backspace' number to string, for
* adding, prepending and removing string.
*/
else if (varp == (char_u *)&p_bs
&& ascii_isdigit(**(char_u **)varp)) {
i = getdigits_int((char_u **)varp, true, 0);
switch (i) {
case 0:
*(char_u **)varp = empty_option;
break;
case 1:
*(char_u **)varp = vim_strsave(
(char_u *)"indent,eol");
break;
case 2:
*(char_u **)varp = vim_strsave(
(char_u *)"indent,eol,start");
break;
}
xfree(oldval);
if (origval == oldval) {
origval = *(char_u **)varp;
}
oldval = *(char_u **)varp;
}
/*
* Convert 'whichwrap' number to string, for
* backwards compatibility with Vim 3.0.
* Misuse errbuf[] for the resulting string.
*/
else if (varp == (char_u *)&p_ww
&& ascii_isdigit(*arg)) {
*errbuf = NUL;
i = getdigits_int(&arg, true, 0);
if (i & 1) {
STRCAT(errbuf, "b,");
}
if (i & 2) {
STRCAT(errbuf, "s,");
}
if (i & 4) {
STRCAT(errbuf, "h,l,");
}
if (i & 8) {
STRCAT(errbuf, "<,>,");
}
if (i & 16) {
STRCAT(errbuf, "[,],");
}
if (*errbuf != NUL) { // remove trailing ,
errbuf[STRLEN(errbuf) - 1] = NUL;
}
save_arg = arg;
arg = errbuf;
}
/*
* Remove '>' before 'dir' and 'bdir', for
* backwards compatibility with version 3.0
*/
else if ( *arg == '>'
&& (varp == (char_u *)&p_dir
|| varp == (char_u *)&p_bdir)) {
arg++;
}
/*
* Copy the new string into allocated memory.
* Can't use set_string_option_direct(), because
* we need to remove the backslashes.
*/
// get a bit too much
newlen = (unsigned)STRLEN(arg) + 1;
if (adding || prepending || removing) {
newlen += (unsigned)STRLEN(origval) + 1;
}
newval = xmalloc(newlen);
s = newval;
/*
* Copy the string, skip over escaped chars.
* For WIN32 backslashes before normal
* file name characters are not removed, and keep
* backslash at start, for "\\machine\path", but
* do remove it for "\\\\machine\\path".
* The reverse is found in ExpandOldSetting().
*/
while (*arg && !ascii_iswhite(*arg)) {
if (*arg == '\\' && arg[1] != NUL
#ifdef BACKSLASH_IN_FILENAME
&& !((flags & P_EXPAND)
&& vim_isfilec(arg[1])
&& (arg[1] != '\\'
|| (s == newval
&& arg[2] != '\\')))
#endif
)
arg++; // remove backslash
if (has_mbyte
&& (i = (*mb_ptr2len)(arg)) > 1) {
// copy multibyte char
memmove(s, arg, (size_t)i);
arg += i;
s += i;
} else
*s++ = *arg++;
}
*s = NUL;
/*
* Expand environment variables and ~.
* Don't do it when adding without inserting a
* comma.
*/
if (!(adding || prepending || removing)
|| (flags & P_COMMA)) {
s = option_expand(opt_idx, newval);
if (s != NULL) {
xfree(newval);
newlen = (unsigned)STRLEN(s) + 1;
if (adding || prepending || removing) {
newlen += (unsigned)STRLEN(origval) + 1;
}
newval = xmalloc(newlen);
STRCPY(newval, s);
}
}
/* locate newval[] in origval[] when removing it
* and when adding to avoid duplicates */
i = 0; // init for GCC
if (removing || (flags & P_NODUP)) {
i = (int)STRLEN(newval);
bs = 0;
for (s = origval; *s; s++) {
if ((!(flags & P_COMMA)
|| s == origval
|| (s[-1] == ',' && !(bs & 1)))
&& STRNCMP(s, newval, i) == 0
&& (!(flags & P_COMMA)
|| s[i] == ','
|| s[i] == NUL)) {
break;
}
// Count backslashes. Only a comma with an even number of
// backslashes or a single backslash preceded by a comma
// before it is recognized as a separator
if ((s > origval + 1 && s[-1] == '\\' && s[-2] != ',')
|| (s == origval + 1 && s[-1] == '\\')) {
bs++;
} else {
bs = 0;
}
}
// do not add if already there
if ((adding || prepending) && *s) {
prepending = false;
adding = false;
STRCPY(newval, origval);
}
}
/* concatenate the two strings; add a ',' if
* needed */
if (adding || prepending) {
comma = ((flags & P_COMMA) && *origval != NUL
&& *newval != NUL);
if (adding) {
i = (int)STRLEN(origval);
// Strip a trailing comma, would get 2.
if (comma && i > 1
&& (flags & P_ONECOMMA) == P_ONECOMMA
&& origval[i - 1] == ','
&& origval[i - 2] != '\\') {
i--;
}
memmove(newval + i + comma, newval,
STRLEN(newval) + 1);
memmove(newval, origval, (size_t)i);
} else {
i = (int)STRLEN(newval);
STRMOVE(newval + i + comma, origval);
}
if (comma) {
newval[i] = ',';
}
}
/* Remove newval[] from origval[]. (Note: "i" has
* been set above and is used here). */
if (removing) {
STRCPY(newval, origval);
if (*s) {
// may need to remove a comma
if (flags & P_COMMA) {
if (s == origval) {
// include comma after string
if (s[i] == ',') {
i++;
}
} else {
// include comma before string
s--;
i++;
}
}
STRMOVE(newval + (s - origval), s + i);
}
}
if (flags & P_FLAGLIST) {
// Remove flags that appear twice.
for (s = newval; *s;) {
// if options have P_FLAGLIST and P_ONECOMMA such as
// 'whichwrap'
if (flags & P_ONECOMMA) {
if (*s != ',' && *(s + 1) == ','
&& vim_strchr(s + 2, *s) != NULL) {
// Remove the duplicated value and the next comma.
STRMOVE(s, s + 2);
continue;
}
} else {
if ((!(flags & P_COMMA) || *s != ',')
&& vim_strchr(s + 1, *s) != NULL) {
STRMOVE(s, s + 1);
continue;
}
}
s++;
}
}
if (save_arg != NULL) { // number for 'whichwrap'
arg = save_arg;
}
new_value_alloced = true;
}
// Set the new value.
*(char_u **)(varp) = newval;
// origval may be freed by
// did_set_string_option(), make a copy.
saved_origval = (origval != NULL) ? xstrdup((char *)origval) : 0;
// newval (and varp) may become invalid if the
// buffer is closed by autocommands.
saved_newval = (newval != NULL) ? xstrdup((char *)newval) : 0;
{
uint32_t *p = insecure_flag(opt_idx, opt_flags);
const int secure_saved = secure;
// When an option is set in the sandbox, from a
// modeline or in secure mode, then deal with side
// effects in secure mode. Also when the value was
// set with the P_INSECURE flag and is not
// completely replaced.
if ((opt_flags & OPT_MODELINE)
|| sandbox != 0
|| (!value_is_replaced && (*p & P_INSECURE))) {
secure = 1;
}
// Handle side effects, and set the global value
// for ":set" on local options. Note: when setting
// 'syntax' or 'filetype' autocommands may be
// triggered that can cause havoc.
errmsg = did_set_string_option(opt_idx, (char_u **)varp,
new_value_alloced, oldval,
errbuf, sizeof(errbuf),
opt_flags, &value_checked);
secure = secure_saved;
}
if (errmsg == NULL) {
if (!starting) {
trigger_optionsset_string(opt_idx, opt_flags, saved_origval,
saved_newval);
}
if (options[opt_idx].flags & P_UI_OPTION) {
ui_call_option_set(cstr_as_string(options[opt_idx].fullname),
STRING_OBJ(cstr_as_string(saved_newval)));
}
}
xfree(saved_origval);
xfree(saved_newval);
// If error detected, print the error message.
if (errmsg != NULL) {
goto skip;
}
} else {
// key code option(FIXME(tarruda): Show a warning or something
// similar)
}
}
if (opt_idx >= 0) {
did_set_option(opt_idx, opt_flags, value_is_replaced, value_checked);
}
}
skip:
/*
* Advance to next argument.
* - skip until a blank found, taking care of backslashes
* - skip blanks
* - skip one "=val" argument (for hidden options ":set gfn =xx")
*/
for (i = 0; i < 2; i++) {
while (*arg != NUL && !ascii_iswhite(*arg)) {
if (*arg++ == '\\' && *arg != NUL) {
arg++;
}
}
arg = skipwhite(arg);
if (*arg != '=') {
break;
}
}
}
if (errmsg != NULL) {
STRLCPY(IObuff, _(errmsg), IOSIZE);
i = (int)STRLEN(IObuff) + 2;
if (i + (arg - startarg) < IOSIZE) {
// append the argument with the error
STRCAT(IObuff, ": ");
assert(arg >= startarg);
memmove(IObuff + i, startarg, (size_t)(arg - startarg));
IObuff[i + (arg - startarg)] = NUL;
}
// make sure all characters are printable
trans_characters(IObuff, IOSIZE);
no_wait_return++; // wait_return done later
emsg(IObuff); // show error highlighted
no_wait_return--;
return FAIL;
}
arg = skipwhite(arg);
}
theend:
if (silent_mode && did_show) {
// After displaying option values in silent mode.
silent_mode = false;
info_message = true; // use mch_msg(), not mch_errmsg()
msg_putchar('\n');
ui_flush();
silent_mode = true;
info_message = false; // use mch_msg(), not mch_errmsg()
}
return OK;
}
// Call this when an option has been given a new value through a user command.
// Sets the P_WAS_SET flag and takes care of the P_INSECURE flag.
static void did_set_option(
int opt_idx,
int opt_flags, // possibly with OPT_MODELINE
int new_value, // value was replaced completely
int value_checked // value was checked to be safe, no need to
// set P_INSECURE
)
{
options[opt_idx].flags |= P_WAS_SET;
/* When an option is set in the sandbox, from a modeline or in secure mode
* set the P_INSECURE flag. Otherwise, if a new value is stored reset the
* flag. */
uint32_t *p = insecure_flag(opt_idx, opt_flags);
if (!value_checked && (secure
|| sandbox != 0
|| (opt_flags & OPT_MODELINE))) {
*p = *p | P_INSECURE;
} else if (new_value) {
*p = *p & ~P_INSECURE;
}
}
static char_u *illegal_char(char_u *errbuf, size_t errbuflen, int c)
{
if (errbuf == NULL) {
return (char_u *)"";
}
vim_snprintf((char *)errbuf, errbuflen, _("E539: Illegal character <%s>"),
(char *)transchar(c));
return errbuf;
}
/*
* Convert a key name or string into a key value.
* Used for 'wildchar' and 'cedit' options.
*/
static int string_to_key(char_u *arg)
{
if (*arg == '<') {
return find_key_option(arg + 1, true);
}
if (*arg == '^') {
return Ctrl_chr(arg[1]);
}
return *arg;
}
/*
* Check value of 'cedit' and set cedit_key.
* Returns NULL if value is OK, error message otherwise.
*/
static char_u *check_cedit(void)
{
int n;
if (*p_cedit == NUL) {
cedit_key = -1;
} else {
n = string_to_key(p_cedit);
if (vim_isprintc(n)) {
return e_invarg;
}
cedit_key = n;
}
return NULL;
}
// When changing 'title', 'titlestring', 'icon' or 'iconstring', call
// maketitle() to create and display it.
// When switching the title or icon off, call ui_set_{icon,title}(NULL) to get
// the old value back.
static void did_set_title(void)
{
if (starting != NO_SCREEN) {
maketitle();
}
}
// set_options_bin - called when 'bin' changes value.
void set_options_bin(
int oldval,
int newval,
int opt_flags // OPT_LOCAL and/or OPT_GLOBAL
)
{
/*
* The option values that are changed when 'bin' changes are
* copied when 'bin is set and restored when 'bin' is reset.
*/
if (newval) {
if (!oldval) { // switched on
if (!(opt_flags & OPT_GLOBAL)) {
curbuf->b_p_tw_nobin = curbuf->b_p_tw;
curbuf->b_p_wm_nobin = curbuf->b_p_wm;
curbuf->b_p_ml_nobin = curbuf->b_p_ml;
curbuf->b_p_et_nobin = curbuf->b_p_et;
}
if (!(opt_flags & OPT_LOCAL)) {
p_tw_nobin = p_tw;
p_wm_nobin = p_wm;
p_ml_nobin = p_ml;
p_et_nobin = p_et;
}
}
if (!(opt_flags & OPT_GLOBAL)) {
curbuf->b_p_tw = 0; // no automatic line wrap
curbuf->b_p_wm = 0; // no automatic line wrap
curbuf->b_p_ml = 0; // no modelines
curbuf->b_p_et = 0; // no expandtab
}
if (!(opt_flags & OPT_LOCAL)) {
p_tw = 0;
p_wm = 0;
p_ml = false;
p_et = false;
p_bin = true; // needed when called for the "-b" argument
}
} else if (oldval) { // switched off
if (!(opt_flags & OPT_GLOBAL)) {
curbuf->b_p_tw = curbuf->b_p_tw_nobin;
curbuf->b_p_wm = curbuf->b_p_wm_nobin;
curbuf->b_p_ml = curbuf->b_p_ml_nobin;
curbuf->b_p_et = curbuf->b_p_et_nobin;
}
if (!(opt_flags & OPT_LOCAL)) {
p_tw = p_tw_nobin;
p_wm = p_wm_nobin;
p_ml = p_ml_nobin;
p_et = p_et_nobin;
}
}
}
/*
* Find the parameter represented by the given character (eg ', :, ", or /),
* and return its associated value in the 'shada' string.
* Only works for number parameters, not for 'r' or 'n'.
* If the parameter is not specified in the string or there is no following
* number, return -1.
*/
int get_shada_parameter(int type)
{
char_u *p;
p = find_shada_parameter(type);
if (p != NULL && ascii_isdigit(*p)) {
return atoi((char *)p);
}
return -1;
}
/*
* Find the parameter represented by the given character (eg ''', ':', '"', or
* '/') in the 'shada' option and return a pointer to the string after it.
* Return NULL if the parameter is not specified in the string.
*/
char_u *find_shada_parameter(int type)
{
char_u *p;
for (p = p_shada; *p; p++) {
if (*p == type) {
return p + 1;
}
if (*p == 'n') { // 'n' is always the last one
break;
}
p = vim_strchr(p, ','); // skip until next ','
if (p == NULL) { // hit the end without finding parameter
break;
}
}
return NULL;
}
/*
* Expand environment variables for some string options.
* These string options cannot be indirect!
* If "val" is NULL expand the current value of the option.
* Return pointer to NameBuff, or NULL when not expanded.
*/
static char_u *option_expand(int opt_idx, char_u *val)
{
// if option doesn't need expansion nothing to do
if (!(options[opt_idx].flags & P_EXPAND) || options[opt_idx].var == NULL) {
return NULL;
}
if (val == NULL) {
val = *(char_u **)options[opt_idx].var;
}
// If val is longer than MAXPATHL no meaningful expansion can be done,
// expand_env() would truncate the string.
if (val == NULL || STRLEN(val) > MAXPATHL) {
return NULL;
}
/*
* Expanding this with NameBuff, expand_env() must not be passed IObuff.
* Escape spaces when expanding 'tags', they are used to separate file
* names.
* For 'spellsuggest' expand after "file:".
*/
expand_env_esc(val, NameBuff, MAXPATHL,
(char_u **)options[opt_idx].var == &p_tags, false,
(char_u **)options[opt_idx].var == &p_sps ? (char_u *)"file:" :
NULL);
if (STRCMP(NameBuff, val) == 0) { // they are the same
return NULL;
}
return NameBuff;
}
// After setting various option values: recompute variables that depend on
// option values.
static void didset_options(void)
{
// initialize the table for 'iskeyword' et.al.
(void)init_chartab();
(void)opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, true);
(void)opt_strings_flags(p_bkc, p_bkc_values, &bkc_flags, true);
(void)opt_strings_flags(p_bo, p_bo_values, &bo_flags, true);
(void)opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, true);
(void)opt_strings_flags(p_vop, p_ssop_values, &vop_flags, true);
(void)opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, true);
(void)opt_strings_flags(p_dy, p_dy_values, &dy_flags, true);
(void)opt_strings_flags(p_rdb, p_rdb_values, &rdb_flags, true);
(void)opt_strings_flags(p_tc, p_tc_values, &tc_flags, false);
(void)opt_strings_flags(p_ve, p_ve_values, &ve_flags, true);
(void)opt_strings_flags(p_wop, p_wop_values, &wop_flags, true);
(void)opt_strings_flags(p_jop, p_jop_values, &jop_flags, true);
(void)spell_check_msm();
(void)spell_check_sps();
(void)compile_cap_prog(curwin->w_s);
(void)did_set_spell_option(true);
// set cedit_key
(void)check_cedit();
briopt_check(curwin);
// initialize the table for 'breakat'.
fill_breakat_flags();
}
// More side effects of setting options.
static void didset_options2(void)
{
// Initialize the highlight_attr[] table.
highlight_changed();
// Parse default for 'clipboard'.
(void)opt_strings_flags(p_cb, p_cb_values, &cb_flags, true);
// Parse default for 'fillchars'.
(void)set_chars_option(curwin, &curwin->w_p_fcs, true);
// Parse default for 'listchars'.
(void)set_chars_option(curwin, &curwin->w_p_lcs, true);
// Parse default for 'wildmode'.
check_opt_wim();
}
/*
* Check for string options that are NULL (normally only termcap options).
*/
void check_options(void)
{
int opt_idx;
for (opt_idx = 0; options[opt_idx].fullname != NULL; opt_idx++) {
if ((options[opt_idx].flags & P_STRING) && options[opt_idx].var != NULL) {
check_string_option((char_u **)get_varp(&(options[opt_idx])));
}
}
}
/*
* 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_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_ft);
check_string_option(&buf->b_p_cinw);
check_string_option(&buf->b_p_cpt);
check_string_option(&buf->b_p_cfu);
check_string_option(&buf->b_p_ofu);
check_string_option(&buf->b_p_keymap);
check_string_option(&buf->b_p_gp);
check_string_option(&buf->b_p_mp);
check_string_option(&buf->b_p_efm);
check_string_option(&buf->b_p_ep);
check_string_option(&buf->b_p_path);
check_string_option(&buf->b_p_tags);
check_string_option(&buf->b_p_tfu);
check_string_option(&buf->b_p_tc);
check_string_option(&buf->b_p_dict);
check_string_option(&buf->b_p_tsr);
check_string_option(&buf->b_p_lw);
check_string_option(&buf->b_p_bkc);
check_string_option(&buf->b_p_menc);
}
/*
* 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) {
xfree(p);
}
}
void clear_string_option(char_u **pp)
{
if (*pp != empty_option) {
xfree(*pp);
}
*pp = empty_option;
}
static void check_string_option(char_u **pp)
{
if (*pp == NULL) {
*pp = empty_option;
}
}
/// Return true when option "opt" was set from a modeline or in secure mode.
/// Return false when it wasn't.
/// Return -1 for an unknown option.
int was_set_insecurely(char_u *opt, int opt_flags)
{
int idx = findoption((const char *)opt);
if (idx >= 0) {
uint32_t *flagp = insecure_flag(idx, opt_flags);
return (*flagp & P_INSECURE) != 0;
}
internal_error("was_set_insecurely()");
return -1;
}
/*
* Get a pointer to the flags used for the P_INSECURE flag of option
* "opt_idx". For some local options a local flags field is used.
*/
static uint32_t *insecure_flag(int opt_idx, int opt_flags)
{
if (opt_flags & OPT_LOCAL)
switch ((int)options[opt_idx].indir) {
case PV_STL: return &curwin->w_p_stl_flags;
case PV_FDE: return &curwin->w_p_fde_flags;
case PV_FDT: return &curwin->w_p_fdt_flags;
case PV_INDE: return &curbuf->b_p_inde_flags;
case PV_FEX: return &curbuf->b_p_fex_flags;
case PV_INEX: return &curbuf->b_p_inex_flags;
}
// Nothing special, return global flags field.
return &options[opt_idx].flags;
}
/*
* Redraw the window title and/or tab page text later.
*/
static void redraw_titles(void)
{
need_maketitle = true;
redraw_tabline = true;
}
static int shada_idx = -1;
// 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
)
{
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((const char *)name);
if (idx < 0) { // Not found (should not happen).
internal_error("set_string_option_direct()");
IEMSG2(_("For option %s"), name);
return;
}
}
if (options[idx].var == NULL) { // can't set hidden option
return;
}
assert((void *) options[idx].var != (void *) &p_shada);
s = vim_strsave(val);
{
varp = (char_u **)get_varp_scope(&(options[idx]),
both ? OPT_LOCAL : opt_flags);
if ((opt_flags & OPT_FREE) && (options[idx].flags & P_ALLOCED)) {
free_string_option(*varp);
}
*varp = s;
// For buffer/window local option may also set the global value.
if (both) {
set_string_option_global(idx, varp);
}
options[idx].flags |= P_ALLOCED;
/* When setting both values of a global option with a local value,
* make the local value empty, so that the global value is used. */
if (((int)options[idx].indir & PV_BOTH) && both) {
free_string_option(*varp);
*varp = empty_option;
}
if (set_sid != SID_NONE) {
sctx_T script_ctx;
if (set_sid == 0) {
script_ctx = current_sctx;
} else {
script_ctx.sc_sid = set_sid;
script_ctx.sc_seq = 0;
script_ctx.sc_lnum = 0;
}
set_option_sctx_idx(idx, opt_flags, script_ctx);
}
}
}
/*
* 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 (options[opt_idx].var == VAR_WIN) {
p = (char_u **)GLOBAL_WO(varp);
} else {
p = (char_u **)options[opt_idx].var;
}
if (options[opt_idx].indir != PV_NONE && p != varp) {
s = vim_strsave(*varp);
free_string_option(*p);
*p = s;
}
}
/// Set a string option to a new value, handling the effects
///
/// @param[in] opt_idx Option to set.
/// @param[in] value New value.
/// @param[in] opt_flags Option flags: expected to contain #OPT_LOCAL and/or
/// #OPT_GLOBAL.
///
/// @return NULL on success, error message on error.
static char *set_string_option(const int opt_idx, const char *const value,
const int opt_flags)
FUNC_ATTR_NONNULL_ARG(2) FUNC_ATTR_WARN_UNUSED_RESULT
{
if (options[opt_idx].var == NULL) { // don't set hidden option
return NULL;
}
char *const s = xstrdup(value);
char **const varp = (char **)get_varp_scope(
&(options[opt_idx]),
((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
? (((int)options[opt_idx].indir & PV_BOTH)
? OPT_GLOBAL : OPT_LOCAL)
: opt_flags));
char *const oldval = *varp;
*varp = s;
char *const saved_oldval = xstrdup(oldval);
char *const saved_newval = xstrdup(s);
int value_checked = false;
char *const r = (char *)did_set_string_option(
opt_idx, (char_u **)varp, (int)true, (char_u *)oldval,
NULL, 0, opt_flags, &value_checked);
if (r == NULL) {
did_set_option(opt_idx, opt_flags, true, value_checked);
}
// call autocommand after handling side effects
if (r == NULL) {
if (!starting) {
trigger_optionsset_string(opt_idx, opt_flags, saved_oldval, saved_newval);
}
if (options[opt_idx].flags & P_UI_OPTION) {
ui_call_option_set(cstr_as_string(options[opt_idx].fullname),
STRING_OBJ(cstr_as_string(saved_newval)));
}
}
xfree(saved_oldval);
xfree(saved_newval);
return r;
}
/// Return true if "val" is a valid name: only consists of alphanumeric ASCII
/// characters or characters in "allowed".
static bool valid_name(const char_u *val, const char *allowed)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
for (const char_u *s = val; *s != NUL; s++) {
if (!ASCII_ISALNUM(*s)
&& vim_strchr((const char_u *)allowed, *s) == NULL) {
return false;
}
}
return true;
}
/// Return true if "val" is a valid 'filetype' name.
/// Also used for 'syntax' and 'keymap'.
static bool valid_filetype(const char_u *val)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return valid_name(val, ".-_");
}
/// Return true if "val" is a valid 'spellang' value.
bool valid_spellang(const char_u *val)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return valid_name(val, ".-_,");
}
/// Return true if "val" is a valid 'spellfile' value.
static bool valid_spellfile(const char_u *val)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
for (const char_u *s = val; *s != NUL; s++) {
if (!vim_isfilec(*s) && *s != ',') {
return false;
}
}
return true;
}
/// Handle string options that need some action to perform when changed.
/// Returns NULL for success, or an error message for an error.
static char_u *
did_set_string_option(
int opt_idx, // index in options[] table
char_u **varp, // pointer to the option variable
int new_value_alloced, // new value was allocated
char_u *oldval, // previous value of the option
char_u *errbuf, // buffer for errors, or NULL
size_t errbuflen, // length of errors buffer
int opt_flags, // OPT_LOCAL and/or OPT_GLOBAL
int *value_checked // value was checked to be safe, no
// need to set P_INSECURE
)
{
char_u *errmsg = NULL;
char_u *s, *p;
int did_chartab = false;
char_u **gvarp;
bool free_oldval = (options[opt_idx].flags & P_ALLOCED);
bool value_changed = false;
/* Get the global option to compare with, otherwise we would have to check
* two values for all local options. */
gvarp = (char_u **)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL);
// Disallow changing some options from secure mode
if ((secure || sandbox != 0)
&& (options[opt_idx].flags & P_SECURE)) {
errmsg = e_secure;
} else if (((options[opt_idx].flags & P_NFNAME)
&& vim_strpbrk(*varp, (char_u *)(secure ? "/\\*?[|;&<>\r\n"
: "/\\*?[<>\r\n")) != NULL)
|| ((options[opt_idx].flags & P_NDNAME)
&& vim_strpbrk(*varp, (char_u *)"*?[|;&<>\r\n") != 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.
errmsg = e_invarg;
} else if (gvarp == &p_bkc) { // 'backupcopy'
char_u *bkc = p_bkc;
unsigned int *flags = &bkc_flags;
if (opt_flags & OPT_LOCAL) {
bkc = curbuf->b_p_bkc;
flags = &curbuf->b_bkc_flags;
}
if ((opt_flags & OPT_LOCAL) && *bkc == NUL) {
// make the local value empty: use the global value
*flags = 0;
} else {
if (opt_strings_flags(bkc, p_bkc_values, flags, true) != OK) {
errmsg = e_invarg;
}
if (((*flags & BKC_AUTO) != 0)
+ ((*flags & BKC_YES) != 0)
+ ((*flags & BKC_NO) != 0) != 1) {
// Must have exactly one of "auto", "yes" and "no".
(void)opt_strings_flags(oldval, p_bkc_values, flags, true);
errmsg = e_invarg;
}
}
} else if (varp == &p_bex || varp == &p_pm) { // 'backupext' and 'patchmode'
if (STRCMP(*p_bex == '.' ? p_bex + 1 : p_bex,
*p_pm == '.' ? p_pm + 1 : p_pm) == 0) {
errmsg = (char_u *)N_("E589: 'backupext' and 'patchmode' are equal");
}
} else if (varp == &curwin->w_p_briopt) { // 'breakindentopt'
if (briopt_check(curwin) == FAIL) {
errmsg = e_invarg;
}
} else if (varp == &p_isi
|| varp == &(curbuf->b_p_isk)
|| varp == &p_isp
|| varp == &p_isf) {
// '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) {
did_chartab = true; // need to restore it below
errmsg = e_invarg; // error in value
}
} else if (varp == &p_hf) { // 'helpfile'
// May compute new values for $VIM and $VIMRUNTIME
if (didset_vim) {
os_setenv("VIM", "", 1);
didset_vim = false;
}
if (didset_vimruntime) {
os_setenv("VIMRUNTIME", "", 1);
didset_vimruntime = false;
}
} else if (varp == &curwin->w_p_cc) { // 'colorcolumn'
errmsg = check_colorcolumn(curwin);
} else if (varp == &p_hlg) { // 'helplang'
// Check for "", "ab", "ab,cd", etc.
for (s = p_hlg; *s != NUL; s += 3) {
if (s[1] == NUL || ((s[2] != ',' || s[3] == NUL) && s[2] != NUL)) {
errmsg = e_invarg;
break;
}
if (s[2] == NUL) {
break;
}
}
} else if (varp == &p_hl) {
// 'highlight'
if (strcmp((char *)(*varp), HIGHLIGHT_INIT) != 0) {
errmsg = e_unsupportedoption;
}
} else if (varp == &p_jop) { // 'jumpoptions'
if (opt_strings_flags(p_jop, p_jop_values, &jop_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_nf) { // 'nrformats'
if (check_opt_strings(*varp, p_nf_values, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_ssop) { // 'sessionoptions'
if (opt_strings_flags(p_ssop, p_ssop_values, &ssop_flags, true) != OK) {
errmsg = e_invarg;
}
if ((ssop_flags & SSOP_CURDIR) && (ssop_flags & SSOP_SESDIR)) {
// Don't allow both "sesdir" and "curdir".
(void)opt_strings_flags(oldval, p_ssop_values, &ssop_flags, true);
errmsg = e_invarg;
}
} else if (varp == &p_vop) { // 'viewoptions'
if (opt_strings_flags(p_vop, p_ssop_values, &vop_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_rdb) { // 'redrawdebug'
if (opt_strings_flags(p_rdb, p_rdb_values, &rdb_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_sbo) { // 'scrollopt'
if (check_opt_strings(p_sbo, p_scbopt_values, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_ambw || (int *)varp == &p_emoji) {
// 'ambiwidth'
if (check_opt_strings(p_ambw, p_ambw_values, false) != OK) {
errmsg = e_invarg;
} else {
FOR_ALL_TAB_WINDOWS(tp, wp) {
if (set_chars_option(wp, &wp->w_p_lcs, true) != NULL) {
errmsg = (char_u *)_("E834: Conflicts with value of 'listchars'");
goto ambw_end;
}
if (set_chars_option(wp, &wp->w_p_fcs, true) != NULL) {
errmsg = (char_u *)_("E835: Conflicts with value of 'fillchars'");
goto ambw_end;
}
}
ambw_end:
{} // clint prefers {} over ; as an empty statement
}
} else if (varp == &p_bg) { // 'background'
if (check_opt_strings(p_bg, p_bg_values, false) == OK) {
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 = vim_strsave((char_u *)(dark ? "dark" : "light"));
check_string_option(&p_bg);
init_highlight(false, false);
}
} else
errmsg = e_invarg;
} else if (varp == &p_wim) { // 'wildmode'
if (check_opt_wim() == FAIL) {
errmsg = e_invarg;
}
// 'wildoptions'
} else if (varp == &p_wop) {
if (opt_strings_flags(p_wop, p_wop_values, &wop_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_wak) { // 'winaltkeys'
if (*p_wak == NUL
|| check_opt_strings(p_wak, p_wak_values, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_ei) { // 'eventignore'
if (check_ei() == FAIL) {
errmsg = e_invarg;
}
// 'encoding', 'fileencoding' and 'makeencoding'
} else if (varp == &p_enc || gvarp == &p_fenc || gvarp == &p_menc) {
if (gvarp == &p_fenc) {
if (!MODIFIABLE(curbuf) && opt_flags != OPT_GLOBAL) {
errmsg = e_modifiable;
} else if (vim_strchr(*varp, ',') != NULL) {
// No comma allowed in 'fileencoding'; catches confusing it
// with 'fileencodings'.
errmsg = e_invarg;
} 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);
xfree(*varp);
*varp = p;
if (varp == &p_enc) {
// only encoding=utf-8 allowed
if (STRCMP(p_enc, "utf-8") != 0) {
errmsg = e_unsupportedoption;
}
}
}
} else if (varp == &p_penc) {
// Canonize printencoding if VIM standard one
p = enc_canonize(p_penc);
xfree(p_penc);
p_penc = p;
} else if (varp == &curbuf->b_p_keymap) {
if (!valid_filetype(*varp)) {
errmsg = e_invarg;
} 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.
*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 ((opt_flags & OPT_LOCAL) == 0) {
set_iminsert_global();
set_imsearch_global();
}
status_redraw_curbuf();
}
} else if (gvarp == &p_ff) { // 'fileformat'
if (!MODIFIABLE(curbuf) && !(opt_flags & OPT_GLOBAL)) {
errmsg = e_modifiable;
} else if (check_opt_strings(*varp, p_ff_values, false) != OK) {
errmsg = e_invarg;
} else {
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 || *oldval == 'm') {
redraw_curbuf_later(NOT_VALID);
}
}
} else if (varp == &p_ffs) { // 'fileformats'
if (check_opt_strings(p_ffs, p_ff_values, true) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_mps) { // 'matchpairs'
if (has_mbyte) {
for (p = *varp; *p != NUL; p++) {
int x2 = -1;
int x3 = -1;
if (*p != NUL) {
p += mb_ptr2len(p);
}
if (*p != NUL) {
x2 = *p++;
}
if (*p != NUL) {
x3 = utf_ptr2char(p);
p += mb_ptr2len(p);
}
if (x2 != ':' || x3 == -1 || (*p != NUL && *p != ',')) {
errmsg = e_invarg;
break;
}
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] != ',')) {
errmsg = e_invarg;
break;
}
if (p[3] == NUL) {
break;
}
}
}
} else if (gvarp == &p_com) { // 'comments'
for (s = *varp; *s; ) {
while (*s && *s != ':') {
if (vim_strchr((char_u *)COM_ALL, *s) == NULL
&& !ascii_isdigit(*s) && *s != '-') {
errmsg = illegal_char(errbuf, errbuflen, *s);
break;
}
s++;
}
if (*s++ == NUL) {
errmsg = (char_u *)N_("E524: Missing colon");
} else if (*s == ',' || *s == NUL) {
errmsg = (char_u *)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);
}
} else if (varp == &p_lcs) { // 'listchars'
errmsg = set_chars_option(curwin, varp, false);
if (!errmsg) {
FOR_ALL_TAB_WINDOWS(tp, wp) {
set_chars_option(wp, &wp->w_p_lcs, true);
}
}
redraw_all_later(NOT_VALID);
} else if (varp == &curwin->w_p_lcs) { // local 'listchars'
errmsg = set_chars_option(curwin, varp, true);
} else if (varp == &p_fcs) { // 'fillchars'
errmsg = set_chars_option(curwin, varp, false);
if (!errmsg) {
FOR_ALL_TAB_WINDOWS(tp, wp) {
set_chars_option(wp, &wp->w_p_fcs, true);
}
}
redraw_all_later(NOT_VALID);
} else if (varp == &curwin->w_p_fcs) { // local 'fillchars'
errmsg = set_chars_option(curwin, varp, true);
} else if (varp == &p_cedit) { // 'cedit'
errmsg = check_cedit();
} else if (varp == &p_vfile) { // 'verbosefile'
verbose_stop();
if (*p_vfile != NUL && verbose_open() == FAIL) {
errmsg = e_invarg;
}
// 'shada'
} else if (varp == &p_shada) {
// TODO(ZyX-I): Remove this code in the future, alongside with &viminfo
// option.
opt_idx = ((options[opt_idx].fullname[0] == 'v')
? (shada_idx == -1
? ((shada_idx = findoption("shada")))
: shada_idx)
: opt_idx);
// Update free_oldval now that we have the opt_idx for 'shada', otherwise
// there would be a disconnect between the check for P_ALLOCED at the start
// of the function and the set of P_ALLOCED at the end of the fuction.
free_oldval = (options[opt_idx].flags & P_ALLOCED);
for (s = p_shada; *s; ) {
// Check it's a valid character
if (vim_strchr((char_u *)"!\"%'/:<@cfhnrs", *s) == NULL) {
errmsg = illegal_char(errbuf, 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 (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((char *)errbuf, errbuflen,
_("E526: Missing number after <%s>"),
transchar_byte(*(s - 1)));
errmsg = errbuf;
} else
errmsg = (char_u *)"";
break;
}
}
if (*s == ',') {
s++;
} else if (*s) {
if (errbuf != NULL) {
errmsg = (char_u *)N_("E527: Missing comma");
} else {
errmsg = (char_u *)"";
}
break;
}
}
if (*p_shada && errmsg == NULL && get_shada_parameter('\'') < 0) {
errmsg = (char_u *)N_("E528: Must specify a ' value");
}
} else if (varp == &p_sbr) { // 'showbreak'
for (s = p_sbr; *s; ) {
if (ptr2cells(s) != 1) {
errmsg = (char_u *)N_("E595: contains unprintable or wide character");
}
MB_PTR_ADV(s);
}
} else if (varp == &p_guicursor) { // 'guicursor'
errmsg = parse_shape_opt(SHAPE_CURSOR);
} else if (varp == &p_popt) {
errmsg = parse_printoptions();
} else if (varp == &p_pmfn) {
errmsg = parse_printmbfont();
} else if (varp == &p_langmap) { // 'langmap'
langmap_set();
} else if (varp == &p_breakat) { // 'breakat'
fill_breakat_flags();
} else if (varp == &p_titlestring || varp == &p_iconstring) {
// 'titlestring' and 'iconstring'
int flagval = (varp == &p_titlestring) ? STL_IN_TITLE : STL_IN_ICON;
// NULL => statusline syntax
if (vim_strchr(*varp, '%') && check_stl_option(*varp) == NULL) {
stl_syntax |= flagval;
} else {
stl_syntax &= ~flagval;
}
did_set_title();
} else if (varp == &p_sel) { // 'selection'
if (*p_sel == NUL
|| check_opt_strings(p_sel, p_sel_values, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_slm) { // 'selectmode'
if (check_opt_strings(p_slm, p_slm_values, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_km) { // 'keymodel'
if (check_opt_strings(p_km, p_km_values, true) != OK) {
errmsg = e_invarg;
} else {
km_stopsel = (vim_strchr(p_km, 'o') != NULL);
km_startsel = (vim_strchr(p_km, 'a') != NULL);
}
} else if (varp == &p_mousem) { // 'mousemodel'
if (check_opt_strings(p_mousem, p_mousem_values, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_swb) { // 'switchbuf'
if (opt_strings_flags(p_swb, p_swb_values, &swb_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_debug) { // 'debug'
if (check_opt_strings(p_debug, p_debug_values, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_dy) { // 'display'
if (opt_strings_flags(p_dy, p_dy_values, &dy_flags, true) != OK) {
errmsg = e_invarg;
} else {
(void)init_chartab();
msg_grid_validate();
}
} else if (varp == &p_ead) { // 'eadirection'
if (check_opt_strings(p_ead, p_ead_values, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_cb) { // 'clipboard'
if (opt_strings_flags(p_cb, p_cb_values, &cb_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &(curwin->w_s->b_p_spl) // 'spell'
|| varp == &(curwin->w_s->b_p_spf)) {
// When 'spelllang' or 'spellfile' is set and there is a window for this
// buffer in which 'spell' is set load the wordlists.
const bool is_spellfile = varp == &(curwin->w_s->b_p_spf);
if ((is_spellfile && !valid_spellfile(*varp))
|| (!is_spellfile && !valid_spellang(*varp))) {
errmsg = e_invarg;
} else {
errmsg = did_set_spell_option(is_spellfile);
}
} else if (varp == &(curwin->w_s->b_p_spc)) {
// When 'spellcapcheck' is set compile the regexp program.
errmsg = compile_cap_prog(curwin->w_s);
} else if (varp == &p_sps) { // 'spellsuggest'
if (spell_check_sps() != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_msm) { // 'mkspellmem'
if (spell_check_msm() != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_bh) {
// When 'bufhidden' is set, check for valid value.
if (check_opt_strings(curbuf->b_p_bh, p_bufhidden_values, false) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_bt) {
// When 'buftype' is set, check for valid value.
if ((curbuf->terminal && curbuf->b_p_bt[0] != 't')
|| (!curbuf->terminal && curbuf->b_p_bt[0] == 't')
|| check_opt_strings(curbuf->b_p_bt, p_buftype_values, false) != OK) {
errmsg = e_invarg;
} else {
if (curwin->w_status_height) {
curwin->w_redr_status = true;
redraw_later(VALID);
}
curbuf->b_help = (curbuf->b_p_bt[0] == 'h');
redraw_titles();
}
} else if (gvarp == &p_stl || varp == &p_ruf) {
// 'statusline' or 'rulerformat'
int wid;
if (varp == &p_ruf) { // reset ru_wid first
ru_wid = 0;
}
s = *varp;
if (varp == &p_ruf && *s == '%') {
// set ru_wid if 'ruf' starts with "%99("
if (*++s == '-') { // ignore a '-'
s++;
}
wid = getdigits_int(&s, true, 0);
if (wid && *s == '(' && (errmsg = check_stl_option(p_ruf)) == NULL) {
ru_wid = wid;
} else {
errmsg = check_stl_option(p_ruf);
}
} else if (varp == &p_ruf || s[0] != '%' || s[1] != '!') {
// check 'statusline' only if it doesn't start with "%!"
errmsg = check_stl_option(s);
}
if (varp == &p_ruf && errmsg == NULL) {
comp_col();
}
} else if (gvarp == &p_cpt) {
// 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) {
errmsg = illegal_char(errbuf, errbuflen, *s);
break;
}
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 (errbuf != NULL) {
vim_snprintf((char *)errbuf, errbuflen,
_("E535: Illegal character after <%c>"),
*--s);
errmsg = errbuf;
} else
errmsg = (char_u *)"";
break;
}
}
}
} else if (varp == &p_cot) { // 'completeopt'
if (check_opt_strings(p_cot, p_cot_values, true) != OK) {
errmsg = e_invarg;
} else {
completeopt_was_set();
}
} else if (varp == &curwin->w_p_scl) {
// 'signcolumn'
if (check_opt_strings(*varp, p_scl_values, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_pt) {
// 'pastetoggle': translate key codes like in a mapping
if (*p_pt) {
(void)replace_termcodes(p_pt, STRLEN(p_pt), &p, true, true, true,
CPO_TO_CPO_FLAGS);
if (p != NULL) {
if (new_value_alloced) {
free_string_option(p_pt);
}
p_pt = p;
new_value_alloced = true;
}
}
} else if (varp == &p_bs) { // 'backspace'
if (ascii_isdigit(*p_bs)) {
if (*p_bs >'2' || p_bs[1] != NUL) {
errmsg = e_invarg;
}
} else if (check_opt_strings(p_bs, p_bs_values, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_bo) {
if (opt_strings_flags(p_bo, p_bo_values, &bo_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_tc) { // 'tagcase'
unsigned int *flags;
if (opt_flags & OPT_LOCAL) {
p = curbuf->b_p_tc;
flags = &curbuf->b_tc_flags;
} else {
p = p_tc;
flags = &tc_flags;
}
if ((opt_flags & OPT_LOCAL) && *p == NUL) {
// make the local value empty: use the global value
*flags = 0;
} else if (*p == NUL
|| opt_strings_flags(p, p_tc_values, flags, false) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_cmp) { // 'casemap'
if (opt_strings_flags(p_cmp, p_cmp_values, &cmp_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_dip) { // 'diffopt'
if (diffopt_changed() == FAIL) {
errmsg = e_invarg;
}
} else if (gvarp == &curwin->w_allbuf_opt.wo_fdm) { // 'foldmethod'
if (check_opt_strings(*varp, p_fdm_values, false) != OK
|| *curwin->w_p_fdm == NUL) {
errmsg = e_invarg;
} else {
foldUpdateAll(curwin);
if (foldmethodIsDiff(curwin)) {
newFoldLevel();
}
}
} else if (varp == &curwin->w_p_fde) { // 'foldexpr'
if (foldmethodIsExpr(curwin)) {
foldUpdateAll(curwin);
}
} else if (gvarp == &curwin->w_allbuf_opt.wo_fmr) { // 'foldmarker'
p = vim_strchr(*varp, ',');
if (p == NULL) {
errmsg = (char_u *)N_("E536: comma required");
} else if (p == *varp || p[1] == NUL) {
errmsg = e_invarg;
} else if (foldmethodIsMarker(curwin)) {
foldUpdateAll(curwin);
}
} else if (gvarp == &p_cms) { // 'commentstring'
if (**varp != NUL && strstr((char *)(*varp), "%s") == NULL) {
errmsg = (char_u *)N_(
"E537: 'commentstring' must be empty or contain %s");
}
} else if (varp == &p_fdo) { // 'foldopen'
if (opt_strings_flags(p_fdo, p_fdo_values, &fdo_flags, true) != OK) {
errmsg = e_invarg;
}
} else if (varp == &p_fcl) { // 'foldclose'
if (check_opt_strings(p_fcl, p_fcl_values, true) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &curwin->w_allbuf_opt.wo_fdi) { // 'foldignore'
if (foldmethodIsIndent(curwin)) {
foldUpdateAll(curwin);
}
} else if (varp == &p_ve) { // 'virtualedit'
if (opt_strings_flags(p_ve, p_ve_values, &ve_flags, true) != OK) {
errmsg = e_invarg;
} else if (STRCMP(p_ve, oldval) != 0) {
// Recompute cursor position in case the new 've' setting
// changes something.
validate_virtcol();
coladvance(curwin->w_virtcol);
}
} else if (varp == &p_csqf) {
if (p_csqf != 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] != ',')) {
errmsg = e_invarg;
break;
} else if (p[2] == NUL) {
break;
} else {
p += 3;
}
}
}
} else if (gvarp == &p_cino) { // 'cinoptions'
// TODO(vim): recognize errors
parse_cino(curbuf);
// inccommand
} else if (varp == &p_icm) {
if (check_opt_strings(p_icm, p_icm_values, false) != OK) {
errmsg = e_invarg;
}
} else if (gvarp == &p_ft) {
if (!valid_filetype(*varp)) {
errmsg = e_invarg;
} else {
value_changed = STRCMP(oldval, *varp) != 0;
// Since we check the value, there is no need to set P_INSECURE,
// even when the value comes from a modeline.
*value_checked = true;
}
} else if (gvarp == &p_syn) {
if (!valid_filetype(*varp)) {
errmsg = e_invarg;
} else {
value_changed = STRCMP(oldval, *varp) != 0;
// Since we check the value, there is no need to set P_INSECURE,
// even when the value comes from a modeline.
*value_checked = true;
}
} else if (varp == &curwin->w_p_winhl) {
if (!parse_winhl_opt(curwin)) {
errmsg = e_invarg;
}
} else {
// Options that are a list of flags.
p = NULL;
if (varp == &p_ww) { // 'whichwrap'
p = (char_u *)WW_ALL;
}
if (varp == &p_shm) { // 'shortmess'
p = (char_u *)SHM_ALL;
} else if (varp == &(p_cpo)) { // 'cpoptions'
p = (char_u *)CPO_VI;
} else if (varp == &(curbuf->b_p_fo)) { // 'formatoptions'
p = (char_u *)FO_ALL;
} else if (varp == &curwin->w_p_cocu) { // 'concealcursor'
p = (char_u *)COCU_ALL;
} else if (varp == &p_mouse) { // 'mouse'
p = (char_u *)MOUSE_ALL;
}
if (p != NULL) {
for (s = *varp; *s; s++) {
if (vim_strchr(p, *s) == NULL) {
errmsg = illegal_char(errbuf, errbuflen, *s);
break;
}
}
}
}
/*
* If error detected, restore the previous value.
*/
if (errmsg != NULL) {
if (new_value_alloced) {
free_string_option(*varp);
}
*varp = oldval;
/*
* When resetting some values, need to act on it.
*/
if (did_chartab) {
(void)init_chartab();
}
} else {
// Remember where the option was set.
set_option_sctx_idx(opt_idx, opt_flags, current_sctx);
// Free string options that are in allocated memory.
// Use "free_oldval", because recursiveness may change the flags under
// our fingers (esp. init_highlight()).
if (free_oldval) {
free_string_option(oldval);
}
if (new_value_alloced) {
options[opt_idx].flags |= P_ALLOCED;
} else {
options[opt_idx].flags &= ~P_ALLOCED;
}
if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0
&& ((int)options[opt_idx].indir & PV_BOTH)) {
/* global option with local value set to use global value; free
* the local value and make it empty */
p = get_varp_scope(&(options[opt_idx]), OPT_LOCAL);
free_string_option(*(char_u **)p);
*(char_u **)p = empty_option;
} else if (!(opt_flags & OPT_LOCAL) && opt_flags != OPT_GLOBAL) {
// May set global value for local option.
set_string_option_global(opt_idx, varp);
}
/*
* Trigger the autocommand only after setting the flags.
*/
// When 'syntax' is set, load the syntax of that name
if (varp == &(curbuf->b_p_syn)) {
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);
syn_recursive--;
} else if (varp == &(curbuf->b_p_ft)) {
// 'filetype' is set, trigger the FileType autocommand
// Skip this when called from a modeline and the filetype was
// already set to this value.
if (!(opt_flags & OPT_MODELINE) || value_changed) {
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;
}
}
if (varp == &(curwin->w_s->b_p_spl)) {
char_u fname[200];
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;
}
/*
* Source the spell/LANG.vim in 'runtimepath'.
* 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, sizeof(fname), "spell/%.*s.vim",
(int)(p - q), q);
source_runtime(fname, DIP_ALL);
}
}
}
if (varp == &p_mouse) {
if (*p_mouse == NUL) {
ui_call_mouse_off();
} else {
setmouse(); // in case 'mouse' changed
}
}
if (curwin->w_curswant != MAXCOL
&& (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0)
curwin->w_set_curswant = true;
check_redraw(options[opt_idx].flags);
return errmsg;
} // NOLINT(readability/fn_size)
/// Simple int comparison function for use with qsort()
static int int_cmp(const void *a, const void *b)
{
return *(const int *)a - *(const int *)b;
}
/// Handle setting 'colorcolumn' or 'textwidth' in window "wp".
///
/// @return error message, NULL if it's OK.
char_u *check_colorcolumn(win_T *wp)
{
char_u *s;
int col;
unsigned int count = 0;
int color_cols[256];
int j = 0;
if (wp->w_buffer == NULL) {
return NULL; // buffer was closed
}
for (s = wp->w_p_cc; *s != NUL && count < 255; ) {
if (*s == '-' || *s == '+') {
// -N and +N: add to 'textwidth'
col = (*s == '-') ? -1 : 1;
s++;
if (!ascii_isdigit(*s)) {
return e_invarg;
}
col = col * getdigits_int(&s, true, 0);
if (wp->w_buffer->b_p_tw == 0) {
goto skip; // 'textwidth' not set, skip this item
}
assert((col >= 0
&& wp->w_buffer->b_p_tw <= INT_MAX - col
&& wp->w_buffer->b_p_tw + col >= INT_MIN)
|| (col < 0
&& wp->w_buffer->b_p_tw >= INT_MIN - col
&& wp->w_buffer->b_p_tw + col <= INT_MAX));
col += (int)wp->w_buffer->b_p_tw;
if (col < 0) {
goto skip;
}
} else if (ascii_isdigit(*s)) {
col = getdigits_int(&s, true, 0);
} else {
return e_invarg;
}
color_cols[count++] = col - 1; // 1-based to 0-based
skip:
if (*s == NUL) {
break;
}
if (*s != ',') {
return e_invarg;
}
if (*++s == NUL) {
return e_invarg; // illegal trailing comma as in "set cc=80,"
}
}
xfree(wp->w_p_cc_cols);
if (count == 0) {
wp->w_p_cc_cols = NULL;
} else {
wp->w_p_cc_cols = xmalloc(sizeof(int) * (count + 1));
/* sort the columns for faster usage on screen redraw inside
* win_line() */
qsort(color_cols, count, sizeof(int), int_cmp);
for (unsigned int i = 0; i < count; i++) {
// skip duplicates
if (j == 0 || wp->w_p_cc_cols[j - 1] != color_cols[i]) {
wp->w_p_cc_cols[j++] = color_cols[i];
}
}
wp->w_p_cc_cols[j] = -1; // end marker
}
return NULL; // no error
}
/// Handle setting 'listchars' or 'fillchars'.
/// Assume monocell characters
///
/// @param varp either &curwin->w_p_lcs or &curwin->w_p_fcs
/// @return error message, NULL if it's OK.
static char_u *set_chars_option(win_T *wp, char_u **varp, bool set)
{
int round, i, len, entries;
char_u *p, *s;
int c1;
int c2 = 0;
int c3 = 0;
struct chars_tab {
int *cp; ///< char value
char *name; ///< char id
int def; ///< default value
};
struct chars_tab *tab;
struct chars_tab fcs_tab[] = {
{ &wp->w_p_fcs_chars.stl, "stl", ' ' },
{ &wp->w_p_fcs_chars.stlnc, "stlnc", ' ' },
{ &wp->w_p_fcs_chars.vert, "vert", 9474 }, // │
{ &wp->w_p_fcs_chars.fold, "fold", 183 }, // ·
{ &wp->w_p_fcs_chars.foldopen, "foldopen", '-' },
{ &wp->w_p_fcs_chars.foldclosed, "foldclose", '+' },
{ &wp->w_p_fcs_chars.foldsep, "foldsep", 9474 }, // │
{ &wp->w_p_fcs_chars.diff, "diff", '-' },
{ &wp->w_p_fcs_chars.msgsep, "msgsep", ' ' },
{ &wp->w_p_fcs_chars.eob, "eob", '~' },
};
struct chars_tab lcs_tab[] = {
{ &wp->w_p_lcs_chars.eol, "eol", NUL },
{ &wp->w_p_lcs_chars.ext, "extends", NUL },
{ &wp->w_p_lcs_chars.nbsp, "nbsp", NUL },
{ &wp->w_p_lcs_chars.prec, "precedes", NUL },
{ &wp->w_p_lcs_chars.space, "space", NUL },
{ &wp->w_p_lcs_chars.tab2, "tab", NUL },
{ &wp->w_p_lcs_chars.trail, "trail", NUL },
{ &wp->w_p_lcs_chars.conceal, "conceal", NUL },
};
if (varp == &p_lcs || varp == &wp->w_p_lcs) {
tab = lcs_tab;
entries = ARRAY_SIZE(lcs_tab);
if (varp == &wp->w_p_lcs && wp->w_p_lcs[0] == NUL) {
varp = &p_lcs;
}
} else {
tab = fcs_tab;
entries = ARRAY_SIZE(fcs_tab);
if (varp == &wp->w_p_fcs && wp->w_p_fcs[0] == NUL) {
varp = &p_fcs;
}
if (*p_ambw == 'd') {
// XXX: If ambiwidth=double then "|" and "·" take 2 columns, which is
// forbidden (TUI limitation?). Set old defaults.
fcs_tab[2].def = '|';
fcs_tab[6].def = '|';
fcs_tab[3].def = '-';
} else {
fcs_tab[2].def = 9474; // │
fcs_tab[6].def = 9474; // │
fcs_tab[3].def = 183; // ·
}
}
// first round: check for valid value, second round: assign values
for (round = 0; round <= set ? 1 : 0; round++) {
if (round > 0) {
// After checking that the value is valid: set defaults
for (i = 0; i < entries; i++) {
if (tab[i].cp != NULL) {
*(tab[i].cp) = tab[i].def;
}
}
if (varp == &p_lcs || varp == &wp->w_p_lcs) {
wp->w_p_lcs_chars.tab1 = NUL;
wp->w_p_lcs_chars.tab3 = NUL;
}
}
p = *varp;
while (*p) {
for (i = 0; i < entries; i++) {
len = (int)STRLEN(tab[i].name);
if (STRNCMP(p, tab[i].name, len) == 0
&& p[len] == ':'
&& p[len + 1] != NUL) {
c2 = c3 = 0;
s = p + len + 1;
// TODO(bfredl): use schar_T representation and utfc_ptr2len
int c1len = utf_ptr2len(s);
c1 = mb_cptr2char_adv((const char_u **)&s);
if (mb_char2cells(c1) > 1 || (c1len == 1 && c1 > 127)) {
continue;
}
if (tab[i].cp == &wp->w_p_lcs_chars.tab2) {
if (*s == NUL) {
continue;
}
int c2len = utf_ptr2len(s);
c2 = mb_cptr2char_adv((const char_u **)&s);
if (mb_char2cells(c2) > 1 || (c2len == 1 && c2 > 127)) {
continue;
}
if (!(*s == ',' || *s == NUL)) {
int c3len = utf_ptr2len(s);
c3 = mb_cptr2char_adv((const char_u **)&s);
if (mb_char2cells(c3) > 1 || (c3len == 1 && c3 > 127)) {
continue;
}
}
}
if (*s == ',' || *s == NUL) {
if (round) {
if (tab[i].cp == &wp->w_p_lcs_chars.tab2) {
wp->w_p_lcs_chars.tab1 = c1;
wp->w_p_lcs_chars.tab2 = c2;
wp->w_p_lcs_chars.tab3 = c3;
} else if (tab[i].cp != NULL) {
*(tab[i].cp) = c1;
}
}
p = s;
break;
}
}
}
if (i == entries) {
return e_invarg;
}
if (*p == ',') {
p++;
}
}
}
return NULL; // no error
}
/*
* Check validity of options with the 'statusline' format.
* Return error message or NULL.
*/
char_u *check_stl_option(char_u *s)
{
int itemcnt = 0;
int groupdepth = 0;
static char_u errbuf[80];
while (*s && itemcnt < STL_MAX_ITEM) {
// Check for valid keys after % sequences
while (*s && *s != '%') {
s++;
}
if (!*s) {
break;
}
s++;
if (*s != '%' && *s != ')') {
itemcnt++;
}
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, *s) == NULL) {
return illegal_char(errbuf, sizeof(errbuf), *s);
}
if (*s == '{') {
s++;
while (*s != '}' && *s)
s++;
if (*s != '}') {
return (char_u *)N_("E540: Unclosed expression sequence");
}
}
}
if (itemcnt >= STL_MAX_ITEM) {
return (char_u *)N_("E541: too many items");
}
if (groupdepth != 0) {
return (char_u *)N_("E542: unbalanced groups");
}
return NULL;
}
static char_u *did_set_spell_option(bool is_spellfile)
{
char_u *errmsg = NULL;
if (is_spellfile) {
int l = (int)STRLEN(curwin->w_s->b_p_spf);
if (l > 0
&& (l < 4 || STRCMP(curwin->w_s->b_p_spf + l - 4, ".add") != 0)) {
errmsg = e_invarg;
}
}
if (errmsg == NULL) {
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
if (wp->w_buffer == curbuf && wp->w_p_spell) {
errmsg = did_set_spelllang(wp);
break;
}
}
}
return errmsg;
}
/*
* Set curbuf->b_cap_prog to the regexp program for 'spellcapcheck'.
* Return error message when failed, NULL when OK.
*/
static char_u *compile_cap_prog(synblock_T *synblock)
{
regprog_T *rp = synblock->b_cap_prog;
char_u *re;
if (*synblock->b_p_spc == NUL) {
synblock->b_cap_prog = NULL;
} else {
// Prepend a ^ so that we only match at one column
re = concat_str((char_u *)"^", synblock->b_p_spc);
synblock->b_cap_prog = vim_regcomp(re, RE_MAGIC);
xfree(re);
if (synblock->b_cap_prog == NULL) {
synblock->b_cap_prog = rp; // restore the previous program
return e_invarg;
}
}
vim_regfree(rp);
return NULL;
}
/// Handle setting `winhighlight' in window "wp"
static bool parse_winhl_opt(win_T *wp)
{
int w_hl_id_normal = 0;
int w_hl_ids[HLF_COUNT] = { 0 };
int hlf;
const char *p = (const char *)wp->w_p_winhl;
while (*p) {
char *colon = strchr(p, ':');
if (!colon) {
return false;
}
size_t nlen = (size_t)(colon-p);
char *hi = colon+1;
char *commap = xstrchrnul(hi, ',');
int len = (int)(commap-hi);
int hl_id = len ? syn_check_group((char_u *)hi, len) : -1;
if (strncmp("Normal", p, nlen) == 0) {
w_hl_id_normal = hl_id;
} else {
for (hlf = 0; hlf < (int)HLF_COUNT; hlf++) {
if (strlen(hlf_names[hlf]) == nlen
&& strncmp(hlf_names[hlf], p, nlen) == 0) {
w_hl_ids[hlf] = hl_id;
break;
}
}
if (hlf == HLF_COUNT) {
return false;
}
}
p = *commap ? commap+1 : "";
}
wp->w_hl_id_normal = w_hl_id_normal;
memcpy(wp->w_hl_ids, w_hl_ids, sizeof(w_hl_ids));
wp->w_hl_needs_update = true;
return true;
}
// Set the script_ctx for an option, taking care of setting the buffer- or
// window-local value.
static void set_option_sctx_idx(int opt_idx, int opt_flags, sctx_T script_ctx)
{
int both = (opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0;
int indir = (int)options[opt_idx].indir;
const LastSet last_set = { .script_ctx =
{ script_ctx.sc_sid, script_ctx.sc_seq,
script_ctx.sc_lnum + sourcing_lnum },
current_channel_id };
// Remember where the option was set. For local options need to do that
// in the buffer or window structure.
if (both || (opt_flags & OPT_GLOBAL) || (indir & (PV_BUF|PV_WIN)) == 0) {
options[opt_idx].last_set = last_set;
}
if (both || (opt_flags & OPT_LOCAL)) {
if (indir & PV_BUF) {
curbuf->b_p_script_ctx[indir & PV_MASK] = last_set;
} else if (indir & PV_WIN) {
curwin->w_p_script_ctx[indir & PV_MASK] = last_set;
}
}
}
/// Set the value of a boolean option, taking care of side effects
///
/// @param[in] opt_idx Option index in options[] table.
/// @param[out] varp Pointer to the option variable.
/// @param[in] value New value.
/// @param[in] opt_flags OPT_LOCAL and/or OPT_GLOBAL.
///
/// @return NULL on success, error message on error.
static char *set_bool_option(const int opt_idx, char_u *const varp,
const int value,
const int opt_flags)
{
int old_value = *(int *)varp;
// Disallow changing some options from secure mode
if ((secure || sandbox != 0)
&& (options[opt_idx].flags & P_SECURE)) {
return (char *)e_secure;
}
*(int *)varp = value; // set the new value
// Remember where the option was set.
set_option_sctx_idx(opt_idx, opt_flags, current_sctx);
// May set global value for local option.
if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) {
*(int *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = value;
}
// Ensure that options set to p_force_on cannot be disabled.
if ((int *)varp == &p_force_on && p_force_on == false) {
p_force_on = true;
return (char *)e_unsupportedoption;
// Ensure that options set to p_force_off cannot be enabled.
} else if ((int *)varp == &p_force_off && p_force_off == true) {
p_force_off = false;
return (char *)e_unsupportedoption;
} else if ((int *)varp == &p_lrm) {
// 'langremap' -> !'langnoremap'
p_lnr = !p_lrm;
} else if ((int *)varp == &p_lnr) {
// 'langnoremap' -> !'langremap'
p_lrm = !p_lnr;
} else if ((int *)varp == &curwin->w_p_cul && !value && old_value) {
// 'cursorline'
reset_cursorline();
// 'undofile'
} else if ((int *)varp == &curbuf->b_p_udf || (int *)varp == &p_udf) {
// Only take action when the option was set. When reset we do not
// delete the undo file, the option may be set again without making
// any changes in between.
if (curbuf->b_p_udf || p_udf) {
char_u hash[UNDO_HASH_SIZE];
buf_T *save_curbuf = curbuf;
FOR_ALL_BUFFERS(bp) {
curbuf = bp;
// When 'undofile' is set globally: for every buffer, otherwise
// only for the current buffer: Try to read in the undofile,
// if one exists, the buffer wasn't changed and the buffer was
// loaded
if ((curbuf == save_curbuf
|| (opt_flags & OPT_GLOBAL) || opt_flags == 0)
&& !curbufIsChanged() && curbuf->b_ml.ml_mfp != NULL) {
u_compute_hash(hash);
u_read_undo(NULL, hash, curbuf->b_fname);
}
}
curbuf = save_curbuf;
}
} else if ((int *)varp == &curbuf->b_p_ro) {
// when 'readonly' is reset globally, also reset readonlymode
if (!curbuf->b_p_ro && (opt_flags & OPT_LOCAL) == 0) {
readonlymode = false;
}
// when 'readonly' is set may give W10 again
if (curbuf->b_p_ro) {
curbuf->b_did_warn = false;
}
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_ma) {
// when 'modifiable' is changed, redraw the window title
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_eol) {
// when 'endofline' is changed, redraw the window title
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_fixeol) {
// when 'fixeol' is changed, redraw the window title
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_bomb) {
// when 'bomb' is changed, redraw the window title and tab page text
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_bin) {
// when 'bin' is set also set some other options
set_options_bin(old_value, curbuf->b_p_bin, opt_flags);
redraw_titles();
} else if ((int *)varp == &curbuf->b_p_bl && old_value != curbuf->b_p_bl) {
// when 'buflisted' changes, trigger autocommands
apply_autocmds(curbuf->b_p_bl ? EVENT_BUFADD : EVENT_BUFDELETE,
NULL, NULL, true, curbuf);
} else if ((int *)varp == (int *)&curbuf->b_p_swf) {
// when 'swf' is set, create swapfile, when reset remove swapfile
if (curbuf->b_p_swf && p_uc) {
ml_open_file(curbuf); // create the swap file
} else {
// no need to reset curbuf->b_may_swap, ml_open_file() will check
// buf->b_p_swf
mf_close_file(curbuf, true); // remove the swap file
}
} else if ((int *)varp == &p_terse) {
// when 'terse' is set change 'shortmess'
char_u *p;
p = vim_strchr(p_shm, SHM_SEARCH);
// insert 's' in p_shm
if (p_terse && p == NULL) {
STRCPY(IObuff, p_shm);
STRCAT(IObuff, "s");
set_string_option_direct((char_u *)"shm", -1, IObuff, OPT_FREE, 0);
} else if (!p_terse && p != NULL) { // remove 's' from p_shm
STRMOVE(p, p + 1);
}
} else if ((int *)varp == &p_paste) {
// when 'paste' is set or reset also change other options
paste_option_changed();
} else if ((int *)varp == &p_im) {
// when 'insertmode' is set from an autocommand need to do work here
if (p_im) {
if ((State & INSERT) == 0) {
need_start_insertmode = true;
}
stop_insert_mode = false;
} else if (old_value) { // only reset if it was set previously
need_start_insertmode = false;
stop_insert_mode = true;
if (restart_edit != 0 && mode_displayed) {
clear_cmdline = true; // remove "(insert)"
}
restart_edit = 0;
}
} else if ((int *)varp == &p_ic && p_hls) {
// when 'ignorecase' is set or reset and 'hlsearch' is set, redraw
redraw_all_later(SOME_VALID);
} else if ((int *)varp == &p_hls) {
// when 'hlsearch' is set or reset: reset no_hlsearch
set_no_hlsearch(false);
} else if ((int *)varp == &curwin->w_p_scb) {
// when 'scrollbind' is set: snapshot the current position to avoid a jump
// at the end of normal_cmd()
if (curwin->w_p_scb) {
do_check_scrollbind(false);
curwin->w_scbind_pos = curwin->w_topline;
}
} else if ((int *)varp == &curwin->w_p_pvw) {
// There can be only one window with 'previewwindow' set.
if (curwin->w_p_pvw) {
FOR_ALL_WINDOWS_IN_TAB(win, curtab) {
if (win->w_p_pvw && win != curwin) {
curwin->w_p_pvw = false;
return N_("E590: A preview window already exists");
}
}
}
} else if (varp == (char_u *)&(curbuf->b_p_lisp)) {
// When 'lisp' option changes include/exclude '-' in
// keyword characters.
(void)buf_init_chartab(curbuf, false); // ignore errors
} else if ((int *)varp == &p_title) {
// when 'title' changed, may need to change the title; same for 'icon'
did_set_title();
} else if ((int *)varp == &p_icon) {
did_set_title();
} else if ((int *)varp == &curbuf->b_changed) {
if (!value) {
save_file_ff(curbuf); // Buffer is unchanged
}
redraw_titles();
modified_was_set = value;
}
#ifdef BACKSLASH_IN_FILENAME
else if ((int *)varp == &p_ssl) {
if (p_ssl) {
psepc = '/';
psepcN = '\\';
pseps[0] = '/';
} else {
psepc = '\\';
psepcN = '/';
pseps[0] = '\\';
}
// need to adjust the file name arguments and buffer names.
buflist_slash_adjust();
alist_slash_adjust();
scriptnames_slash_adjust();
}
#endif
else if ((int *)varp == &curwin->w_p_wrap) {
// If 'wrap' is set, set w_leftcol to zero.
if (curwin->w_p_wrap) {
curwin->w_leftcol = 0;
}
} else if ((int *)varp == &p_ea) {
if (p_ea && !old_value) {
win_equal(curwin, false, 0);
}
} else if ((int *)varp == &p_acd) {
// Change directories when the 'acd' option is set now.
do_autochdir();
} else if ((int *)varp == &curwin->w_p_diff) { // 'diff'
// May add or remove the buffer from the list of diff buffers.
diff_buf_adjust(curwin);
if (foldmethodIsDiff(curwin)) {
foldUpdateAll(curwin);
}
} else if ((int *)varp == &curwin->w_p_spell) { // 'spell'
if (curwin->w_p_spell) {
char_u *errmsg = did_set_spelllang(curwin);
if (errmsg != NULL) {
EMSG(_(errmsg));
}
}
}
if ((int *)varp == &curwin->w_p_arab) {
if (curwin->w_p_arab) {
/*
* 'arabic' is set, handle various sub-settings.
*/
if (!p_tbidi) {
// set rightleft mode
if (!curwin->w_p_rl) {
curwin->w_p_rl = true;
changed_window_setting();
}
// Enable Arabic shaping (major part of what Arabic requires)
if (!p_arshape) {
p_arshape = true;
redraw_all_later(NOT_VALID);
}
}
/* Arabic requires a utf-8 encoding, inform the user if its not
* set. */
if (STRCMP(p_enc, "utf-8") != 0) {
static char *w_arabic = N_(
"W17: Arabic requires UTF-8, do ':set encoding=utf-8'");
msg_source(HL_ATTR(HLF_W));
msg_attr(_(w_arabic), HL_ATTR(HLF_W));
set_vim_var_string(VV_WARNINGMSG, _(w_arabic), -1);
}
// set 'delcombine'
p_deco = true;
// Force-set the necessary keymap for arabic.
set_option_value("keymap", 0L, "arabic", OPT_LOCAL);
} else {
/*
* 'arabic' is reset, handle various sub-settings.
*/
if (!p_tbidi) {
// reset rightleft mode
if (curwin->w_p_rl) {
curwin->w_p_rl = false;
changed_window_setting();
}
/* 'arabicshape' isn't reset, it is a global option and
* another window may still need it "on". */
}
/* 'delcombine' isn't reset, it is a global option and another
* window may still want it "on". */
// Revert to the default keymap
curbuf->b_p_iminsert = B_IMODE_NONE;
curbuf->b_p_imsearch = B_IMODE_USE_INSERT;
}
}
/*
* End of handling side effects for bool options.
*/
// after handling side effects, call autocommand
options[opt_idx].flags |= P_WAS_SET;
// Don't do this while starting up or recursively.
if (!starting && *get_vim_var_str(VV_OPTION_TYPE) == NUL) {
char buf_old[2];
char buf_new[2];
char buf_type[7];
vim_snprintf(buf_old, ARRAY_SIZE(buf_old), "%d",
old_value ? true: false);
vim_snprintf(buf_new, ARRAY_SIZE(buf_new), "%d",
value ? true: false);
vim_snprintf(buf_type, ARRAY_SIZE(buf_type), "%s",
(opt_flags & OPT_LOCAL) ? "local" : "global");
set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
apply_autocmds(EVENT_OPTIONSET,
(char_u *) options[opt_idx].fullname,
NULL, false, NULL);
reset_v_option_vars();
}
if (options[opt_idx].flags & P_UI_OPTION) {
ui_call_option_set(cstr_as_string(options[opt_idx].fullname),
BOOLEAN_OBJ(value));
}
comp_col(); // in case 'ruler' or 'showcmd' changed
if (curwin->w_curswant != MAXCOL
&& (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0) {
curwin->w_set_curswant = true;
}
check_redraw(options[opt_idx].flags);
return NULL;
}
/// Set the value of a number option, taking care of side effects
///
/// @param[in] opt_idx Option index in options[] table.
/// @param[out] varp Pointer to the option variable.
/// @param[in] value New value.
/// @param errbuf Buffer for error messages.
/// @param[in] errbuflen Length of `errbuf`.
/// @param[in] opt_flags OPT_LOCAL, OPT_GLOBAL or OPT_MODELINE.
///
/// @return NULL on success, error message on error.
static char *set_num_option(int opt_idx, char_u *varp, long value,
char_u *errbuf, size_t errbuflen, int opt_flags)
{
char_u *errmsg = NULL;
long old_value = *(long *)varp;
long old_Rows = Rows; // remember old Rows
long *pp = (long *)varp;
// Disallow changing some options from secure mode.
if ((secure || sandbox != 0)
&& (options[opt_idx].flags & P_SECURE)) {
return (char *)e_secure;
}
// Many number options assume their value is in the signed int range.
if (value < INT_MIN || value > INT_MAX) {
return (char *)e_invarg;
}
// Options that need some validation.
if (pp == &p_wh) {
if (value < 1) {
errmsg = e_positive;
} else if (p_wmh > value) {
errmsg = e_winheight;
}
} else if (pp == &p_hh) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_wmh) {
if (value < 0) {
errmsg = e_positive;
} else if (value > p_wh) {
errmsg = e_winheight;
}
} else if (pp == &p_wiw) {
if (value < 1) {
errmsg = e_positive;
} else if (p_wmw > value) {
errmsg = e_winwidth;
}
} else if (pp == &p_wmw) {
if (value < 0) {
errmsg = e_positive;
} else if (value > p_wiw) {
errmsg = e_winwidth;
}
} else if (pp == &p_mco) {
value = MAX_MCO;
} else if (pp == &p_titlelen) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_uc) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_ch) {
int minval = ui_has(kUIMessages) ? 0 : 1;
if (value < minval) {
errmsg = e_positive;
}
} else if (pp == &p_tm) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_hi) {
if (value < 0) {
errmsg = e_positive;
} else if (value > 10000) {
errmsg = e_invarg;
}
} else if (pp == &p_re) {
if (value < 0 || value > 2) {
errmsg = e_invarg;
}
} else if (pp == &p_report) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_so) {
if (value < 0 && full_screen) {
errmsg = e_scroll;
}
} else if (pp == &p_siso) {
if (value < 0 && full_screen) {
errmsg = e_positive;
}
} else if (pp == &p_cwh) {
if (value < 1) {
errmsg = e_positive;
}
} else if (pp == &p_ut) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_ss) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &curwin->w_p_fdl || pp == &curwin->w_allbuf_opt.wo_fdl) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &curwin->w_p_fdc || pp == &curwin->w_allbuf_opt.wo_fdc) {
if (value < 0) {
errmsg = e_positive;
} else if (value > 12) {
errmsg = e_invarg;
}
} else if (pp == &curwin->w_p_cole || pp == &curwin->w_allbuf_opt.wo_cole) {
if (value < 0) {
errmsg = e_positive;
} else if (value > 3) {
errmsg = e_invarg;
}
} else if (pp == &curwin->w_p_nuw || pp == &curwin->w_allbuf_opt.wo_nuw) {
if (value < 1) {
errmsg = e_positive;
} else if (value > 20) {
errmsg = e_invarg;
}
} else if (pp == &curbuf->b_p_iminsert || pp == &p_iminsert) {
if (value < 0 || value > B_IMODE_LAST) {
errmsg = e_invarg;
}
} else if (pp == &curbuf->b_p_imsearch || pp == &p_imsearch) {
if (value < -1 || value > B_IMODE_LAST) {
errmsg = e_invarg;
}
} else if (pp == &curbuf->b_p_channel || pp == &p_channel) {
errmsg = e_invarg;
} else if (pp == &curbuf->b_p_scbk || pp == &p_scbk) {
if (value < -1 || value > SB_MAX) {
errmsg = e_invarg;
}
} else if (pp == &curbuf->b_p_sw || pp == &p_sw) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &curbuf->b_p_ts || pp == &p_ts) {
if (value < 1) {
errmsg = e_positive;
}
} else if (pp == &curbuf->b_p_tw || pp == &p_tw) {
if (value < 0) {
errmsg = e_positive;
}
} else if (pp == &p_wd) {
if (value < 0) {
errmsg = e_positive;
}
}
// Don't change the value and return early if validation failed.
if (errmsg != NULL) {
return (char *)errmsg;
}
*pp = value;
// Remember where the option was set.
set_option_sctx_idx(opt_idx, opt_flags, current_sctx);
// For these options we want to fix some invalid values.
if (pp == &p_window) {
if (p_window < 1) {
p_window = Rows - 1;
} else if (p_window >= Rows) {
p_window = Rows - 1;
}
} else if (pp == &p_ch) {
if (ui_has(kUIMessages)) {
p_ch = 0;
}
if (p_ch > Rows - min_rows() + 1) {
p_ch = Rows - min_rows() + 1;
}
}
// Number options that need some action when changed
if (pp == &p_wh) {
// 'winheight'
if (!ONE_WINDOW && curwin->w_height < p_wh) {
win_setheight((int)p_wh);
}
} else if (pp == &p_hh) {
// 'helpheight'
if (!ONE_WINDOW && curbuf->b_help && curwin->w_height < p_hh) {
win_setheight((int)p_hh);
}
} else if (pp == &p_wmh) {
// 'winminheight'
win_setminheight();
} else if (pp == &p_wiw) {
// 'winwidth'
if (!ONE_WINDOW && curwin->w_width < p_wiw) {
win_setwidth((int)p_wiw);
}
} else if (pp == &p_wmw) {
// 'winminwidth'
win_setminwidth();
} else if (pp == &p_ls) {
last_status(false); // (re)set last window status line.
} else if (pp == &p_stal) {
// (re)set tab page line
shell_new_rows(); // recompute window positions and heights
} else if (pp == &curwin->w_p_fdl) {
newFoldLevel();
} else if (pp == &curwin->w_p_fml) {
foldUpdateAll(curwin);
} else if (pp == &curwin->w_p_fdn) {
if (foldmethodIsSyntax(curwin) || foldmethodIsIndent(curwin)) {
foldUpdateAll(curwin);
}
} else if (pp == &curbuf->b_p_sw || pp == &curbuf->b_p_ts) {
// 'shiftwidth' or 'tabstop'
if (foldmethodIsIndent(curwin)) {
foldUpdateAll(curwin);
}
// When 'shiftwidth' changes, or it's zero and 'tabstop' changes:
// parse 'cinoptions'.
if (pp == &curbuf->b_p_sw || curbuf->b_p_sw == 0) {
parse_cino(curbuf);
}
} else if (pp == &curbuf->b_p_iminsert) {
showmode();
// Show/unshow value of 'keymap' in status lines.
status_redraw_curbuf();
} else if (pp == &p_titlelen) {
// if 'titlelen' has changed, redraw the title
if (starting != NO_SCREEN && old_value != p_titlelen) {
need_maketitle = true;
}
} else if (pp == &p_ch) {
// if p_ch changed value, change the command line height
// Only compute the new window layout when startup has been
// completed. Otherwise the frame sizes may be wrong.
if (p_ch != old_value && full_screen) {
command_height();
}
} else if (pp == &p_uc) {
// when 'updatecount' changes from zero to non-zero, open swap files
if (p_uc && !old_value) {
ml_open_files();
}
} else if (pp == &p_pb) {
p_pb = MAX(MIN(p_pb, 100), 0);
hl_invalidate_blends();
pum_grid.blending = (p_pb > 0);
if (pum_drawn()) {
pum_redraw();
}
} else if (pp == &p_pyx) {
if (p_pyx != 0 && p_pyx != 2 && p_pyx != 3) {
errmsg = e_invarg;
}
} else if (pp == &p_ul || pp == &curbuf->b_p_ul) {
// sync undo before 'undolevels' changes
// use the old value, otherwise u_sync() may not work properly
*pp = old_value;
u_sync(true);
*pp = value;
} else if (pp == &curbuf->b_p_tw) {
FOR_ALL_TAB_WINDOWS(tp, wp) {
check_colorcolumn(wp);
}
} else if (pp == &curbuf->b_p_scbk || pp == &p_scbk) {
if (curbuf->terminal) {
// Force the scrollback to take effect.
terminal_check_size(curbuf->terminal);
}
} else if (pp == &curwin->w_p_nuw) {
curwin->w_nrwidth_line_count = 0;
} else if (pp == &curwin->w_p_winbl && value != old_value) {
// 'floatblend'
curwin->w_p_winbl = MAX(MIN(curwin->w_p_winbl, 100), 0);
curwin->w_hl_needs_update = true;
curwin->w_grid.blending = curwin->w_p_winbl > 0;
}
// Check the (new) bounds for Rows and Columns here.
if (p_lines < min_rows() && full_screen) {
if (errbuf != NULL) {
vim_snprintf((char *)errbuf, errbuflen,
_("E593: Need at least %d lines"), min_rows());
errmsg = errbuf;
}
p_lines = min_rows();
}
if (p_columns < MIN_COLUMNS && full_screen) {
if (errbuf != NULL) {
vim_snprintf((char *)errbuf, errbuflen,
_("E594: Need at least %d columns"), MIN_COLUMNS);
errmsg = errbuf;
}
p_columns = MIN_COLUMNS;
}
// True max size is defined by check_shellsize()
p_lines = MIN(p_lines, INT_MAX);
p_columns = MIN(p_columns, INT_MAX);
// If the screen (shell) height has been changed, assume it is the
// physical screenheight.
if (p_lines != Rows || p_columns != Columns) {
// Changing the screen size is not allowed while updating the screen.
if (updating_screen) {
*pp = old_value;
} else if (full_screen) {
screen_resize((int)p_columns, (int)p_lines);
} else {
// TODO(bfredl): is this branch ever needed?
// Postpone the resizing; check the size and cmdline position for
// messages.
Rows = (int)p_lines;
Columns = (int)p_columns;
check_shellsize();
if (cmdline_row > Rows - p_ch && Rows > p_ch) {
assert(p_ch >= 0 && Rows - p_ch <= INT_MAX);
cmdline_row = (int)(Rows - p_ch);
}
}
if (p_window >= Rows || !option_was_set("window")) {
p_window = Rows - 1;
}
}
if ((curwin->w_p_scr <= 0
|| (curwin->w_p_scr > curwin->w_height
&& curwin->w_height > 0))
&& full_screen) {
if (pp == &(curwin->w_p_scr)) {
if (curwin->w_p_scr != 0) {
errmsg = e_scroll;
}
win_comp_scroll(curwin);
} else if (curwin->w_p_scr <= 0) {
// If 'scroll' became invalid because of a side effect silently adjust it.
curwin->w_p_scr = 1;
} else { // curwin->w_p_scr > curwin->w_height
curwin->w_p_scr = curwin->w_height;
}
}
if ((p_sj < -100 || p_sj >= Rows) && full_screen) {
if (Rows != old_Rows) { // Rows changed, just adjust p_sj
p_sj = Rows / 2;
} else {
errmsg = e_scroll;
p_sj = 1;
}
}
// May set global value for local option.
if ((opt_flags & (OPT_LOCAL | OPT_GLOBAL)) == 0) {
*(long *)get_varp_scope(&(options[opt_idx]), OPT_GLOBAL) = *pp;
}
options[opt_idx].flags |= P_WAS_SET;
// Don't do this while starting up, failure or recursively.
if (!starting && errmsg == NULL && *get_vim_var_str(VV_OPTION_TYPE) == NUL) {
char buf_old[NUMBUFLEN];
char buf_new[NUMBUFLEN];
char buf_type[7];
vim_snprintf(buf_old, ARRAY_SIZE(buf_old), "%ld", old_value);
vim_snprintf(buf_new, ARRAY_SIZE(buf_new), "%ld", value);
vim_snprintf(buf_type, ARRAY_SIZE(buf_type), "%s",
(opt_flags & OPT_LOCAL) ? "local" : "global");
set_vim_var_string(VV_OPTION_NEW, buf_new, -1);
set_vim_var_string(VV_OPTION_OLD, buf_old, -1);
set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
apply_autocmds(EVENT_OPTIONSET,
(char_u *) options[opt_idx].fullname,
NULL, false, NULL);
reset_v_option_vars();
}
if (errmsg == NULL && options[opt_idx].flags & P_UI_OPTION) {
ui_call_option_set(cstr_as_string(options[opt_idx].fullname),
INTEGER_OBJ(value));
}
comp_col(); // in case 'columns' or 'ls' changed
if (curwin->w_curswant != MAXCOL
&& (options[opt_idx].flags & (P_CURSWANT | P_RALL)) != 0) {
curwin->w_set_curswant = true;
}
check_redraw(options[opt_idx].flags);
return (char *)errmsg;
}
static void trigger_optionsset_string(int opt_idx, int opt_flags,
char *oldval, char *newval)
{
// Don't do this recursively.
if (oldval != NULL
&& newval != NULL
&& *get_vim_var_str(VV_OPTION_TYPE) == NUL) {
char buf_type[7];
vim_snprintf(buf_type, ARRAY_SIZE(buf_type), "%s",
(opt_flags & OPT_LOCAL) ? "local" : "global");
set_vim_var_string(VV_OPTION_OLD, oldval, -1);
set_vim_var_string(VV_OPTION_NEW, newval, -1);
set_vim_var_string(VV_OPTION_TYPE, buf_type, -1);
apply_autocmds(EVENT_OPTIONSET,
(char_u *)options[opt_idx].fullname, NULL, false, NULL);
reset_v_option_vars();
}
}
/*
* Called after an option changed: check if something needs to be redrawn.
*/
static void check_redraw(uint32_t flags)
{
// Careful: P_RCLR and P_RALL are a combination of other P_ flags
bool doclear = (flags & P_RCLR) == P_RCLR;
bool all = ((flags & P_RALL) == P_RALL || doclear);
if ((flags & P_RSTAT) || all) { // mark all status lines dirty
status_redraw_all();
}
if ((flags & P_RBUF) || (flags & P_RWIN) || all) {
changed_window_setting();
}
if (flags & P_RBUF) {
redraw_curbuf_later(NOT_VALID);
}
if (flags & P_RWINONLY) {
redraw_later(NOT_VALID);
}
if (doclear) {
redraw_all_later(CLEAR);
} else if (all) {
redraw_all_later(NOT_VALID);
}
}
/// Find index for named option
///
/// @param[in] arg Option to find index for.
/// @param[in] len Length of the option.
///
/// @return Index of the option or -1 if option was not found.
int findoption_len(const char *const arg, const size_t len)
{
const char *s;
const char *p;
static int quick_tab[27] = { 0, 0 }; // quick access table
// For first call: Initialize the quick-access table.
// It contains the index for the first option that starts with a certain
// letter. There are 26 letters, plus the first "t_" option.
if (quick_tab[1] == 0) {
p = options[0].fullname;
for (short int i = 1; (s = options[i].fullname) != NULL; i++) {
if (s[0] != p[0]) {
if (s[0] == 't' && s[1] == '_') {
quick_tab[26] = i;
} else {
quick_tab[CharOrdLow(s[0])] = i;
}
}
p = s;
}
}
// Check for name starting with an illegal character.
if (len == 0 || arg[0] < 'a' || arg[0] > 'z') {
return -1;
}
int opt_idx;
const bool is_term_opt = (len > 2 && arg[0] == 't' && arg[1] == '_');
if (is_term_opt) {
opt_idx = quick_tab[26];
} else {
opt_idx = quick_tab[CharOrdLow(arg[0])];
}
// Match full name
for (; (s = options[opt_idx].fullname) != NULL; opt_idx++) {
if (strncmp(arg, s, len) == 0 && s[len] == NUL) {
break;
}
}
if (s == NULL && !is_term_opt) {
opt_idx = quick_tab[CharOrdLow(arg[0])];
// Match short name
for (; options[opt_idx].fullname != NULL; opt_idx++) {
s = options[opt_idx].shortname;
if (s != NULL && strncmp(arg, s, len) == 0 && s[len] == NUL) {
break;
}
s = NULL;
}
}
if (s == NULL) {
opt_idx = -1;
} else {
// Nvim: handle option aliases.
if (STRNCMP(options[opt_idx].fullname, "viminfo", 7) == 0) {
if (STRLEN(options[opt_idx].fullname) == 7) {
return findoption_len("shada", 5);
}
assert(STRCMP(options[opt_idx].fullname, "viminfofile") == 0);
return findoption_len("shadafile", 9);
}
}
return opt_idx;
}
bool is_tty_option(const char *name)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return (name[0] == 't' && name[1] == '_')
|| strequal(name, "term")
|| strequal(name, "ttytype");
}
#define TCO_BUFFER_SIZE 8
/// @param name TUI-related option
/// @param[out,allocated] value option string value
bool get_tty_option(char *name, char **value)
{
if (strequal(name, "t_Co")) {
if (value) {
if (t_colors <= 1) {
*value = xstrdup("");
} else {
*value = xmalloc(TCO_BUFFER_SIZE);
snprintf(*value, TCO_BUFFER_SIZE, "%d", t_colors);
}
}
return true;
}
if (strequal(name, "term")) {
if (value) {
*value = p_term ? xstrdup(p_term) : xstrdup("nvim");
}
return true;
}
if (strequal(name, "ttytype")) {
if (value) {
*value = p_ttytype ? xstrdup(p_ttytype) : xstrdup("nvim");
}
return true;
}
if (is_tty_option(name)) {
if (value) {
// XXX: All other t_* options were removed in 3baba1e7.
*value = xstrdup("");
}
return true;
}
return false;
}
bool set_tty_option(const char *name, char *value)
{
if (strequal(name, "term")) {
if (p_term) {
xfree(p_term);
}
p_term = value;
return true;
}
if (strequal(name, "ttytype")) {
if (p_ttytype) {
xfree(p_ttytype);
}
p_ttytype = value;
return true;
}
return false;
}
/// Find index for an option
///
/// @param[in] arg Option name.
///
/// @return Option index or -1 if option was not found.
static int findoption(const char *const arg)
{
return findoption_len(arg, strlen(arg));
}
/// Gets the value for an option.
///
/// @returns:
/// Number or Toggle option: 1, *numval gets value.
/// String option: 0, *stringval gets allocated string.
/// Hidden Number or Toggle option: -1.
/// hidden String option: -2.
/// unknown option: -3.
int get_option_value(
char_u *name,
long *numval,
char_u **stringval, ///< NULL when only checking existence
int opt_flags
)
{
if (get_tty_option((char *)name, (char **)stringval)) {
return 0;
}
int opt_idx = findoption((const char *)name);
if (opt_idx < 0) { // Unknown option.
return -3;
}
char_u *varp = get_varp_scope(&(options[opt_idx]), opt_flags);
if (options[opt_idx].flags & P_STRING) {
if (varp == NULL) { // hidden option
return -2;
}
if (stringval != NULL) {
*stringval = vim_strsave(*(char_u **)(varp));
}
return 0;
}
if (varp == NULL) { // hidden option
return -1;
}
if (options[opt_idx].flags & P_NUM) {
*numval = *(long *)varp;
} else {
// Special case: 'modified' is b_changed, but we also want to consider
// it set when 'ff' or 'fenc' changed.
if ((int *)varp == &curbuf->b_changed) {
*numval = curbufIsChanged();
} else {
*numval = (long) *(int *)varp; // NOLINT(whitespace/cast)
}
}
return 1;
}
// Returns the option attributes and its value. Unlike the above function it
// will return either global value or local value of the option depending on
// what was requested, but it will never return global value if it was
// requested to return local one and vice versa. Neither it will return
// buffer-local value if it was requested to return window-local one.
//
// Pretends that option is absent if it is not present in the requested scope
// (i.e. has no global, window-local or buffer-local value depending on
// opt_type).
//
// Returned flags:
// 0 hidden or unknown option, also option that does not have requested
// type (see SREQ_* in option_defs.h)
// see SOPT_* in option_defs.h for other flags
//
// Possible opt_type values: see SREQ_* in option_defs.h
int get_option_value_strict(char *name,
int64_t *numval,
char **stringval,
int opt_type,
void *from)
{
if (get_tty_option(name, stringval)) {
return SOPT_STRING | SOPT_GLOBAL;
}
char_u *varp = NULL;
int rv = 0;
int opt_idx = findoption(name);
if (opt_idx < 0) {
return 0;
}
vimoption_T *p = &options[opt_idx];
// Hidden option
if (p->var == NULL) {
return 0;
}
if (p->flags & P_BOOL) {
rv |= SOPT_BOOL;
} else if (p->flags & P_NUM) {
rv |= SOPT_NUM;
} else if (p->flags & P_STRING) {
rv |= SOPT_STRING;
}
if (p->indir == PV_NONE) {
if (opt_type == SREQ_GLOBAL) {
rv |= SOPT_GLOBAL;
} else {
return 0; // Did not request global-only option
}
} else {
if (p->indir & PV_BOTH) {
rv |= SOPT_GLOBAL;
}
if (p->indir & PV_WIN) {
if (opt_type == SREQ_BUF) {
return 0; // Requested buffer-local, not window-local option
} else {
rv |= SOPT_WIN;
}
} else if (p->indir & PV_BUF) {
if (opt_type == SREQ_WIN) {
return 0; // Requested window-local, not buffer-local option
} else {
rv |= SOPT_BUF;
}
}
}
if (stringval == NULL) {
return rv;
}
if (opt_type == SREQ_GLOBAL) {
if (p->var == VAR_WIN) {
return 0;
} else {
varp = p->var;
}
} else {
if (opt_type == SREQ_BUF) {
// Special case: 'modified' is b_changed, but we also want to
// consider it set when 'ff' or 'fenc' changed.
if (p->indir == PV_MOD) {
*numval = bufIsChanged((buf_T *)from);
varp = NULL;
} else {
buf_T *save_curbuf = curbuf;
// only getting a pointer, no need to use aucmd_prepbuf()
curbuf = (buf_T *)from;
curwin->w_buffer = curbuf;
varp = get_varp(p);
curbuf = save_curbuf;
curwin->w_buffer = curbuf;
}
} else if (opt_type == SREQ_WIN) {
win_T *save_curwin = curwin;
curwin = (win_T *)from;
curbuf = curwin->w_buffer;
varp = get_varp(p);
curwin = save_curwin;
curbuf = curwin->w_buffer;
}
if (varp == p->var) {
return (rv | SOPT_UNSET);
}
}
if (varp != NULL) {
if (p->flags & P_STRING) {
*stringval = xstrdup(*(char **)(varp));
} else if (p->flags & P_NUM) {
*numval = *(long *) varp;
} else {
*numval = *(int *)varp;
}
}
return rv;
}
/// Set the value of an option
///
/// @param[in] name Option name.
/// @param[in] number New value for the number or boolean option.
/// @param[in] string New value for string option.
/// @param[in] opt_flags Flags: OPT_LOCAL, OPT_GLOBAL, or 0 (both).
///
/// @return NULL on success, error message on error.
char *set_option_value(const char *const name, const long number,
const char *const string, const int opt_flags)
FUNC_ATTR_NONNULL_ARG(1)
{
if (is_tty_option(name)) {
return NULL; // Fail silently; many old vimrcs set t_xx options.
}
int opt_idx;
char_u *varp;
opt_idx = findoption(name);
if (opt_idx < 0) {
EMSG2(_("E355: Unknown option: %s"), name);
} else {
uint32_t flags = options[opt_idx].flags;
// Disallow changing some options in the sandbox
if (sandbox > 0 && (flags & P_SECURE)) {
EMSG(_(e_sandbox));
return NULL;
}
if (flags & P_STRING) {
const char *s = string;
if (s == NULL) {
s = "";
}
return set_string_option(opt_idx, s, opt_flags);
} else {
varp = get_varp_scope(&(options[opt_idx]), opt_flags);
if (varp != NULL) { // hidden option is not changed
if (number == 0 && string != NULL) {
int idx;
// Either we are given a string or we are setting option
// to zero.
for (idx = 0; string[idx] == '0'; idx++) {}
if (string[idx] != NUL || idx == 0) {
// There's another character after zeros or the string
// is empty. In both cases, we are trying to set a
// num option using a string.
EMSG3(_("E521: Number required: &%s = '%s'"),
name, string);
return NULL; // do nothing as we hit an error
}
}
if (flags & P_NUM) {
return set_num_option(opt_idx, varp, number, NULL, 0, opt_flags);
} else {
return set_bool_option(opt_idx, varp, (int)number, opt_flags);
}
}
}
}
return NULL;
}
// Translate a string like "t_xx", "<t_xx>" or "<S-Tab>" to a key number.
// When "has_lt" is true there is a '<' before "*arg_arg".
// Returns 0 when the key is not recognized.
int find_key_option_len(const char_u *arg_arg, size_t len, bool has_lt)
{
int key = 0;
int modifiers;
const char_u *arg = arg_arg;
// Don't use get_special_key_code() for t_xx, we don't want it to call
// add_termcap_entry().
if (len >= 4 && arg[0] == 't' && arg[1] == '_') {
key = TERMCAP2KEY(arg[2], arg[3]);
} else if (has_lt) {
arg--; // put arg at the '<'
modifiers = 0;
key = find_special_key(&arg, len + 1, &modifiers, true, true, false);
if (modifiers) { // can't handle modifiers here
key = 0;
}
}
return key;
}
static int find_key_option(const char_u *arg, bool has_lt)
{
return find_key_option_len(arg, STRLEN(arg), has_lt);
}
/*
* if 'all' == 0: show changed options
* if 'all' == 1: show all normal options
*/
static void
showoptions(
int all,
int opt_flags // OPT_LOCAL and/or OPT_GLOBAL
)
{
vimoption_T *p;
int col;
char_u *varp;
int item_count;
int run;
int row, rows;
int cols;
int i;
int len;
#define INC 20
#define GAP 3
vimoption_T **items = xmalloc(sizeof(vimoption_T *) * PARAM_COUNT);
// Highlight title
if (opt_flags & OPT_GLOBAL) {
MSG_PUTS_TITLE(_("\n--- Global option values ---"));
} else if (opt_flags & OPT_LOCAL) {
MSG_PUTS_TITLE(_("\n--- Local option values ---"));
} else {
MSG_PUTS_TITLE(_("\n--- Options ---"));
}
// Do the loop two times:
// 1. display the short items
// 2. display the long items (only strings and numbers)
for (run = 1; run <= 2 && !got_int; run++) {
// collect the items in items[]
item_count = 0;
for (p = &options[0]; p->fullname != NULL; p++) {
// apply :filter /pat/
if (message_filtered((char_u *)p->fullname)) {
continue;
}
varp = NULL;
if (opt_flags != 0) {
if (p->indir != PV_NONE) {
varp = get_varp_scope(p, opt_flags);
}
} else {
varp = get_varp(p);
}
if (varp != NULL
&& (all == 1 || (all == 0 && !optval_default(p, varp)))) {
if (p->flags & P_BOOL) {
len = 1; // a toggle option fits always
} else {
option_value2string(p, opt_flags);
len = (int)STRLEN(p->fullname) + vim_strsize(NameBuff) + 1;
}
if ((len <= INC - GAP && run == 1)
|| (len > INC - GAP && run == 2)) {
items[item_count++] = p;
}
}
}
/*
* display the items
*/
if (run == 1) {
assert(Columns <= INT_MAX - GAP
&& Columns + GAP >= INT_MIN + 3
&& (Columns + GAP - 3) / INC >= INT_MIN
&& (Columns + GAP - 3) / INC <= INT_MAX);
cols = (int)((Columns + GAP - 3) / INC);
if (cols == 0) {
cols = 1;
}
rows = (item_count + cols - 1) / cols;
} else { // run == 2
rows = item_count;
}
for (row = 0; row < rows && !got_int; row++) {
msg_putchar('\n'); // go to next line
if (got_int) { // 'q' typed in more
break;
}
col = 0;
for (i = row; i < item_count; i += rows) {
msg_col = col; // make columns
showoneopt(items[i], opt_flags);
col += INC;
}
ui_flush();
os_breakcheck();
}
}
xfree(items);
}
/// Return true if option "p" has its default value.
static int optval_default(vimoption_T *p, char_u *varp)
{
int dvi;
if (varp == NULL) {
return true; // hidden option is always at default
}
dvi = ((p->flags & P_VI_DEF) || p_cp) ? VI_DEFAULT : VIM_DEFAULT;
if (p->flags & P_NUM) {
return *(long *)varp == (long)(intptr_t)p->def_val[dvi];
}
if (p->flags & P_BOOL) {
return *(int *)varp == (int)(intptr_t)p->def_val[dvi];
}
// P_STRING
return STRCMP(*(char_u **)varp, p->def_val[dvi]) == 0;
}
/// Send update to UIs with values of UI relevant options
void ui_refresh_options(void)
{
for (int opt_idx = 0; options[opt_idx].fullname; opt_idx++) {
uint32_t flags = options[opt_idx].flags;
if (!(flags & P_UI_OPTION)) {
continue;
}
String name = cstr_as_string(options[opt_idx].fullname);
void *varp = options[opt_idx].var;
Object value = OBJECT_INIT;
if (flags & P_BOOL) {
value = BOOLEAN_OBJ(*(int *)varp);
} else if (flags & P_NUM) {
value = INTEGER_OBJ(*(long *)varp);
} else if (flags & P_STRING) {
// cstr_as_string handles NULL string
value = STRING_OBJ(cstr_as_string(*(char **)varp));
}
ui_call_option_set(name, value);
}
if (p_mouse != NULL) {
if (*p_mouse == NUL) {
ui_call_mouse_off();
} else {
setmouse();
}
}
}
/*
* showoneopt: show the value of one option
* must not be called with a hidden option!
*/
static void
showoneopt(
vimoption_T *p,
int opt_flags // OPT_LOCAL or OPT_GLOBAL
)
{
char_u *varp;
int save_silent = silent_mode;
silent_mode = false;
info_message = true; // use mch_msg(), not mch_errmsg()
varp = get_varp_scope(p, opt_flags);
// for 'modified' we also need to check if 'ff' or 'fenc' changed.
if ((p->flags & P_BOOL) && ((int *)varp == &curbuf->b_changed
? !curbufIsChanged() : !*(int *)varp)) {
MSG_PUTS("no");
} else if ((p->flags & P_BOOL) && *(int *)varp < 0) {
MSG_PUTS("--");
} else {
MSG_PUTS(" ");
}
MSG_PUTS(p->fullname);
if (!(p->flags & P_BOOL)) {
msg_putchar('=');
// put value string in NameBuff
option_value2string(p, opt_flags);
msg_outtrans(NameBuff);
}
silent_mode = save_silent;
info_message = false;
}
/*
* Write modified options as ":set" commands to a file.
*
* There are three values for "opt_flags":
* OPT_GLOBAL: Write global option values and fresh values of
* buffer-local options (used for start of a session
* file).
* OPT_GLOBAL + OPT_LOCAL: Idem, add fresh values of window-local options for
* curwin (used for a vimrc file).
* OPT_LOCAL: Write buffer-local option values for curbuf, fresh
* and local values for window-local options of
* curwin. Local values are also written when at the
* default value, because a modeline or autocommand
* may have set them when doing ":edit file" and the
* user has set them back at the default or fresh
* value.
* When "local_only" is true, don't write fresh
* values, only local values (for ":mkview").
* (fresh value = value used for a new buffer or window for a local option).
*
* Return FAIL on error, OK otherwise.
*/
int makeset(FILE *fd, int opt_flags, int local_only)
{
vimoption_T *p;
char_u *varp; // currently used value
char_u *varp_fresh; // local value
char_u *varp_local = NULL; // fresh value
char *cmd;
int round;
int pri;
/*
* Some options are never written:
* - Options that don't have a default (terminal name, columns, lines).
* - Terminal options.
* - Hidden options.
*
* Do the loop over "options[]" twice: once for options with the
* P_PRI_MKRC flag and once without.
*/
for (pri = 1; pri >= 0; pri--) {
for (p = &options[0]; p->fullname; p++) {
if (!(p->flags & P_NO_MKRC)
&& ((pri == 1) == ((p->flags & P_PRI_MKRC) != 0))) {
// skip global option when only doing locals
if (p->indir == PV_NONE && !(opt_flags & OPT_GLOBAL)) {
continue;
}
/* Do not store options like 'bufhidden' and 'syntax' in a vimrc
* file, they are always buffer-specific. */
if ((opt_flags & OPT_GLOBAL) && (p->flags & P_NOGLOB)) {
continue;
}
varp = get_varp_scope(p, opt_flags);
// Hidden options are never written.
if (!varp) {
continue;
}
// Global values are only written when not at the default value.
if ((opt_flags & OPT_GLOBAL) && optval_default(p, varp)) {
continue;
}
round = 2;
if (p->indir != PV_NONE) {
if (p->var == VAR_WIN) {
// skip window-local option when only doing globals
if (!(opt_flags & OPT_LOCAL)) {
continue;
}
// When fresh value of window-local option is not at the
// default, need to write it too.
if (!(opt_flags & OPT_GLOBAL) && !local_only) {
varp_fresh = get_varp_scope(p, OPT_GLOBAL);
if (!optval_default(p, varp_fresh)) {
round = 1;
varp_local = varp;
varp = varp_fresh;
}
}
}
}
/* Round 1: fresh value for window-local options.
* Round 2: other values */
for (; round <= 2; varp = varp_local, round++) {
if (round == 1 || (opt_flags & OPT_GLOBAL)) {
cmd = "set";
} else {
cmd = "setlocal";
}
if (p->flags & P_BOOL) {
if (put_setbool(fd, cmd, p->fullname, *(int *)varp) == FAIL) {
return FAIL;
}
} else if (p->flags & P_NUM) {
if (put_setnum(fd, cmd, p->fullname, (long *)varp) == FAIL) {
return FAIL;
}
} else { // P_STRING
int do_endif = false;
// Don't set 'syntax' and 'filetype' again if the value is
// already right, avoids reloading the syntax file.
if (p->indir == PV_SYN || p->indir == PV_FT) {
if (fprintf(fd, "if &%s != '%s'", p->fullname,
*(char_u **)(varp)) < 0
|| put_eol(fd) < 0) {
return FAIL;
}
do_endif = true;
}
if (put_setstring(fd, cmd, p->fullname, (char_u **)varp,
(p->flags & P_EXPAND) != 0) == FAIL)
return FAIL;
if (do_endif) {
if (put_line(fd, "endif") == FAIL) {
return FAIL;
}
}
}
}
}
}
}
return OK;
}
/*
* Generate set commands for the local fold options only. Used when
* 'sessionoptions' or 'viewoptions' contains "folds" but not "options".
*/
int makefoldset(FILE *fd)
{
if (put_setstring(fd, "setlocal", "fdm", &curwin->w_p_fdm, false) == FAIL
|| put_setstring(fd, "setlocal", "fde", &curwin->w_p_fde, false)
== FAIL
|| put_setstring(fd, "setlocal", "fmr", &curwin->w_p_fmr, false)
== FAIL
|| put_setstring(fd, "setlocal", "fdi", &curwin->w_p_fdi, false)
== FAIL
|| put_setnum(fd, "setlocal", "fdl", &curwin->w_p_fdl) == FAIL
|| put_setnum(fd, "setlocal", "fml", &curwin->w_p_fml) == FAIL
|| put_setnum(fd, "setlocal", "fdn", &curwin->w_p_fdn) == FAIL
|| put_setbool(fd, "setlocal", "fen", curwin->w_p_fen) == FAIL
) {
return FAIL;
}
return OK;
}
static int put_setstring(FILE *fd, char *cmd, char *name, char_u **valuep, int expand)
{
char_u *s;
char_u *buf;
if (fprintf(fd, "%s %s=", cmd, name) < 0) {
return FAIL;
}
if (*valuep != NULL) {
/* Output 'pastetoggle' as key names. For other
* options some characters have to be escaped with
* CTRL-V or backslash */
if (valuep == &p_pt) {
s = *valuep;
while (*s != NUL) {
if (put_escstr(fd, (char_u *)str2special((const char **)&s, false,
false), 2)
== FAIL) {
return FAIL;
}
}
} else if (expand) {
buf = xmalloc(MAXPATHL);
home_replace(NULL, *valuep, buf, MAXPATHL, false);
if (put_escstr(fd, buf, 2) == FAIL) {
xfree(buf);
return FAIL;
}
xfree(buf);
} else if (put_escstr(fd, *valuep, 2) == FAIL) {
return FAIL;
}
}
if (put_eol(fd) < 0) {
return FAIL;
}
return OK;
}
static int put_setnum(FILE *fd, char *cmd, char *name, long *valuep)
{
long wc;
if (fprintf(fd, "%s %s=", cmd, name) < 0) {
return FAIL;
}
if (wc_use_keyname((char_u *)valuep, &wc)) {
// print 'wildchar' and 'wildcharm' as a key name
if (fputs((char *)get_special_key_name((int)wc, 0), fd) < 0) {
return FAIL;
}
} else if (fprintf(fd, "%" PRId64, (int64_t)(*valuep)) < 0) {
return FAIL;
}
if (put_eol(fd) < 0) {
return FAIL;
}
return OK;
}
static int put_setbool(FILE *fd, char *cmd, char *name, int value)
{
if (value < 0) { // global/local option using global value
return OK;
}
if (fprintf(fd, "%s %s%s", cmd, value ? "" : "no", name) < 0
|| put_eol(fd) < 0) {
return FAIL;
}
return OK;
}
/*
* Compute columns for ruler and shown command. 'sc_col' is also used to
* decide what the maximum length of a message on the status line can be.
* If there is a status line for the last window, 'sc_col' is independent
* of 'ru_col'.
*/
#define COL_RULER 17 // columns needed by standard ruler
void comp_col(void)
{
int last_has_status = (p_ls == 2 || (p_ls == 1 && !ONE_WINDOW));
sc_col = 0;
ru_col = 0;
if (p_ru) {
ru_col = (ru_wid ? ru_wid : COL_RULER) + 1;
// no last status line, adjust sc_col
if (!last_has_status) {
sc_col = ru_col;
}
}
if (p_sc) {
sc_col += SHOWCMD_COLS;
if (!p_ru || last_has_status) { // no need for separating space
sc_col++;
}
}
assert(sc_col >= 0
&& INT_MIN + sc_col <= Columns
&& Columns - sc_col <= INT_MAX);
sc_col = (int)(Columns - sc_col);
assert(ru_col >= 0
&& INT_MIN + ru_col <= Columns
&& Columns - ru_col <= INT_MAX);
ru_col = (int)(Columns - ru_col);
if (sc_col <= 0) { // screen too narrow, will become a mess
sc_col = 1;
}
if (ru_col <= 0) {
ru_col = 1;
}
set_vim_var_nr(VV_ECHOSPACE, sc_col - 1);
}
// Unset local option value, similar to ":set opt<".
void unset_global_local_option(char *name, void *from)
{
vimoption_T *p;
buf_T *buf = (buf_T *)from;
int opt_idx = findoption(name);
if (opt_idx < 0) {
EMSG2(_("E355: Unknown option: %s"), name);
return;
}
p = &(options[opt_idx]);
switch ((int)p->indir)
{
// global option with local value: use local value if it's been set
case PV_EP:
clear_string_option(&buf->b_p_ep);
break;
case PV_KP:
clear_string_option(&buf->b_p_kp);
break;
case PV_PATH:
clear_string_option(&buf->b_p_path);
break;
case PV_AR:
buf->b_p_ar = -1;
break;
case PV_BKC:
clear_string_option(&buf->b_p_bkc);
buf->b_bkc_flags = 0;
break;
case PV_TAGS:
clear_string_option(&buf->b_p_tags);
break;
case PV_TC:
clear_string_option(&buf->b_p_tc);
buf->b_tc_flags = 0;
break;
case PV_DEF:
clear_string_option(&buf->b_p_def);
break;
case PV_INC:
clear_string_option(&buf->b_p_inc);
break;
case PV_DICT:
clear_string_option(&buf->b_p_dict);
break;
case PV_TSR:
clear_string_option(&buf->b_p_tsr);
break;
case PV_FP:
clear_string_option(&buf->b_p_fp);
break;
case PV_EFM:
clear_string_option(&buf->b_p_efm);
break;
case PV_GP:
clear_string_option(&buf->b_p_gp);
break;
case PV_MP:
clear_string_option(&buf->b_p_mp);
break;
case PV_STL:
clear_string_option(&((win_T *)from)->w_p_stl);
break;
case PV_UL:
buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
break;
case PV_LW:
clear_string_option(&buf->b_p_lw);
break;
case PV_MENC:
clear_string_option(&buf->b_p_menc);
break;
case PV_LCS:
clear_string_option(&((win_T *)from)->w_p_lcs);
set_chars_option((win_T *)from, &((win_T *)from)->w_p_lcs, true);
redraw_win_later((win_T *)from, NOT_VALID);
break;
case PV_FCS:
clear_string_option(&((win_T *)from)->w_p_fcs);
set_chars_option((win_T *)from, &((win_T *)from)->w_p_fcs, true);
redraw_win_later((win_T *)from, NOT_VALID);
break;
}
}
/*
* Get pointer to option variable, depending on local or global scope.
*/
static char_u *get_varp_scope(vimoption_T *p, int opt_flags)
{
if ((opt_flags & OPT_GLOBAL) && p->indir != PV_NONE) {
if (p->var == VAR_WIN) {
return (char_u *)GLOBAL_WO(get_varp(p));
}
return p->var;
}
if ((opt_flags & OPT_LOCAL) && ((int)p->indir & PV_BOTH)) {
switch ((int)p->indir) {
case PV_FP: return (char_u *)&(curbuf->b_p_fp);
case PV_EFM: return (char_u *)&(curbuf->b_p_efm);
case PV_GP: return (char_u *)&(curbuf->b_p_gp);
case PV_MP: return (char_u *)&(curbuf->b_p_mp);
case PV_EP: return (char_u *)&(curbuf->b_p_ep);
case PV_KP: return (char_u *)&(curbuf->b_p_kp);
case PV_PATH: return (char_u *)&(curbuf->b_p_path);
case PV_AR: return (char_u *)&(curbuf->b_p_ar);
case PV_TAGS: return (char_u *)&(curbuf->b_p_tags);
case PV_TC: return (char_u *)&(curbuf->b_p_tc);
case PV_DEF: return (char_u *)&(curbuf->b_p_def);
case PV_INC: return (char_u *)&(curbuf->b_p_inc);
case PV_DICT: return (char_u *)&(curbuf->b_p_dict);
case PV_TSR: return (char_u *)&(curbuf->b_p_tsr);
case PV_TFU: return (char_u *)&(curbuf->b_p_tfu);
case PV_STL: return (char_u *)&(curwin->w_p_stl);
case PV_UL: return (char_u *)&(curbuf->b_p_ul);
case PV_LW: return (char_u *)&(curbuf->b_p_lw);
case PV_BKC: return (char_u *)&(curbuf->b_p_bkc);
case PV_MENC: return (char_u *)&(curbuf->b_p_menc);
case PV_FCS: return (char_u *)&(curwin->w_p_fcs);
case PV_LCS: return (char_u *)&(curwin->w_p_lcs);
}
return NULL; // "cannot happen"
}
return get_varp(p);
}
/*
* Get pointer to option variable.
*/
static char_u *get_varp(vimoption_T *p)
{
// hidden option, always return NULL
if (p->var == NULL) {
return NULL;
}
switch ((int)p->indir) {
case PV_NONE: return p->var;
// global option with local value: use local value if it's been set
case PV_EP: return *curbuf->b_p_ep != NUL
? (char_u *)&curbuf->b_p_ep : p->var;
case PV_KP: return *curbuf->b_p_kp != NUL
? (char_u *)&curbuf->b_p_kp : p->var;
case PV_PATH: return *curbuf->b_p_path != NUL
? (char_u *)&(curbuf->b_p_path) : p->var;
case PV_AR: return curbuf->b_p_ar >= 0
? (char_u *)&(curbuf->b_p_ar) : p->var;
case PV_TAGS: return *curbuf->b_p_tags != NUL
? (char_u *)&(curbuf->b_p_tags) : p->var;
case PV_TC: return *curbuf->b_p_tc != NUL
? (char_u *)&(curbuf->b_p_tc) : p->var;
case PV_BKC: return *curbuf->b_p_bkc != NUL
? (char_u *)&(curbuf->b_p_bkc) : p->var;
case PV_DEF: return *curbuf->b_p_def != NUL
? (char_u *)&(curbuf->b_p_def) : p->var;
case PV_INC: return *curbuf->b_p_inc != NUL
? (char_u *)&(curbuf->b_p_inc) : p->var;
case PV_DICT: return *curbuf->b_p_dict != NUL
? (char_u *)&(curbuf->b_p_dict) : p->var;
case PV_TSR: return *curbuf->b_p_tsr != NUL
? (char_u *)&(curbuf->b_p_tsr) : p->var;
case PV_FP: return *curbuf->b_p_fp != NUL
? (char_u *)&(curbuf->b_p_fp) : p->var;
case PV_EFM: return *curbuf->b_p_efm != NUL
? (char_u *)&(curbuf->b_p_efm) : p->var;
case PV_GP: return *curbuf->b_p_gp != NUL
? (char_u *)&(curbuf->b_p_gp) : p->var;
case PV_MP: return *curbuf->b_p_mp != NUL
? (char_u *)&(curbuf->b_p_mp) : p->var;
case PV_STL: return *curwin->w_p_stl != NUL
? (char_u *)&(curwin->w_p_stl) : p->var;
case PV_UL: return curbuf->b_p_ul != NO_LOCAL_UNDOLEVEL
? (char_u *)&(curbuf->b_p_ul) : p->var;
case PV_LW: return *curbuf->b_p_lw != NUL
? (char_u *)&(curbuf->b_p_lw) : p->var;
case PV_MENC: return *curbuf->b_p_menc != NUL
? (char_u *)&(curbuf->b_p_menc) : p->var;
case PV_FCS: return *curwin->w_p_fcs != NUL
? (char_u *)&(curwin->w_p_fcs) : p->var;
case PV_LCS: return *curwin->w_p_lcs != NUL
? (char_u *)&(curwin->w_p_lcs) : p->var;
case PV_ARAB: return (char_u *)&(curwin->w_p_arab);
case PV_LIST: return (char_u *)&(curwin->w_p_list);
case PV_SPELL: return (char_u *)&(curwin->w_p_spell);
case PV_CUC: return (char_u *)&(curwin->w_p_cuc);
case PV_CUL: return (char_u *)&(curwin->w_p_cul);
case PV_CC: return (char_u *)&(curwin->w_p_cc);
case PV_DIFF: return (char_u *)&(curwin->w_p_diff);
case PV_FDC: return (char_u *)&(curwin->w_p_fdc);
case PV_FEN: return (char_u *)&(curwin->w_p_fen);
case PV_FDI: return (char_u *)&(curwin->w_p_fdi);
case PV_FDL: return (char_u *)&(curwin->w_p_fdl);
case PV_FDM: return (char_u *)&(curwin->w_p_fdm);
case PV_FML: return (char_u *)&(curwin->w_p_fml);
case PV_FDN: return (char_u *)&(curwin->w_p_fdn);
case PV_FDE: return (char_u *)&(curwin->w_p_fde);
case PV_FDT: return (char_u *)&(curwin->w_p_fdt);
case PV_FMR: return (char_u *)&(curwin->w_p_fmr);
case PV_NU: return (char_u *)&(curwin->w_p_nu);
case PV_RNU: return (char_u *)&(curwin->w_p_rnu);
case PV_NUW: return (char_u *)&(curwin->w_p_nuw);
case PV_WFH: return (char_u *)&(curwin->w_p_wfh);
case PV_WFW: return (char_u *)&(curwin->w_p_wfw);
case PV_PVW: return (char_u *)&(curwin->w_p_pvw);
case PV_RL: return (char_u *)&(curwin->w_p_rl);
case PV_RLC: return (char_u *)&(curwin->w_p_rlc);
case PV_SCROLL: return (char_u *)&(curwin->w_p_scr);
case PV_WRAP: return (char_u *)&(curwin->w_p_wrap);
case PV_LBR: return (char_u *)&(curwin->w_p_lbr);
case PV_BRI: return (char_u *)&(curwin->w_p_bri);
case PV_BRIOPT: return (char_u *)&(curwin->w_p_briopt);
case PV_SCBIND: return (char_u *)&(curwin->w_p_scb);
case PV_CRBIND: return (char_u *)&(curwin->w_p_crb);
case PV_COCU: return (char_u *)&(curwin->w_p_cocu);
case PV_COLE: return (char_u *)&(curwin->w_p_cole);
case PV_AI: return (char_u *)&(curbuf->b_p_ai);
case PV_BIN: return (char_u *)&(curbuf->b_p_bin);
case PV_BOMB: return (char_u *)&(curbuf->b_p_bomb);
case PV_BH: return (char_u *)&(curbuf->b_p_bh);
case PV_BT: return (char_u *)&(curbuf->b_p_bt);
case PV_BL: return (char_u *)&(curbuf->b_p_bl);
case PV_CHANNEL:return (char_u *)&(curbuf->b_p_channel);
case PV_CI: return (char_u *)&(curbuf->b_p_ci);
case PV_CIN: return (char_u *)&(curbuf->b_p_cin);
case PV_CINK: return (char_u *)&(curbuf->b_p_cink);
case PV_CINO: return (char_u *)&(curbuf->b_p_cino);
case PV_CINW: return (char_u *)&(curbuf->b_p_cinw);
case PV_COM: return (char_u *)&(curbuf->b_p_com);
case PV_CMS: return (char_u *)&(curbuf->b_p_cms);
case PV_CPT: return (char_u *)&(curbuf->b_p_cpt);
case PV_CFU: return (char_u *)&(curbuf->b_p_cfu);
case PV_OFU: return (char_u *)&(curbuf->b_p_ofu);
case PV_EOL: return (char_u *)&(curbuf->b_p_eol);
case PV_FIXEOL: return (char_u *)&(curbuf->b_p_fixeol);
case PV_ET: return (char_u *)&(curbuf->b_p_et);
case PV_FENC: return (char_u *)&(curbuf->b_p_fenc);
case PV_FF: return (char_u *)&(curbuf->b_p_ff);
case PV_FT: return (char_u *)&(curbuf->b_p_ft);
case PV_FO: return (char_u *)&(curbuf->b_p_fo);
case PV_FLP: return (char_u *)&(curbuf->b_p_flp);
case PV_IMI: return (char_u *)&(curbuf->b_p_iminsert);
case PV_IMS: return (char_u *)&(curbuf->b_p_imsearch);
case PV_INF: return (char_u *)&(curbuf->b_p_inf);
case PV_ISK: return (char_u *)&(curbuf->b_p_isk);
case PV_INEX: return (char_u *)&(curbuf->b_p_inex);
case PV_INDE: return (char_u *)&(curbuf->b_p_inde);
case PV_INDK: return (char_u *)&(curbuf->b_p_indk);
case PV_FEX: return (char_u *)&(curbuf->b_p_fex);
case PV_LISP: return (char_u *)&(curbuf->b_p_lisp);
case PV_ML: return (char_u *)&(curbuf->b_p_ml);
case PV_MPS: return (char_u *)&(curbuf->b_p_mps);
case PV_MA: return (char_u *)&(curbuf->b_p_ma);
case PV_MOD: return (char_u *)&(curbuf->b_changed);
case PV_NF: return (char_u *)&(curbuf->b_p_nf);
case PV_PI: return (char_u *)&(curbuf->b_p_pi);
case PV_QE: return (char_u *)&(curbuf->b_p_qe);
case PV_RO: return (char_u *)&(curbuf->b_p_ro);
case PV_SCBK: return (char_u *)&(curbuf->b_p_scbk);
case PV_SI: return (char_u *)&(curbuf->b_p_si);
case PV_STS: return (char_u *)&(curbuf->b_p_sts);
case PV_SUA: return (char_u *)&(curbuf->b_p_sua);
case PV_SWF: return (char_u *)&(curbuf->b_p_swf);
case PV_SMC: return (char_u *)&(curbuf->b_p_smc);
case PV_SYN: return (char_u *)&(curbuf->b_p_syn);
case PV_SPC: return (char_u *)&(curwin->w_s->b_p_spc);
case PV_SPF: return (char_u *)&(curwin->w_s->b_p_spf);
case PV_SPL: return (char_u *)&(curwin->w_s->b_p_spl);
case PV_SW: return (char_u *)&(curbuf->b_p_sw);
case PV_TFU: return (char_u *)&(curbuf->b_p_tfu);
case PV_TS: return (char_u *)&(curbuf->b_p_ts);
case PV_TW: return (char_u *)&(curbuf->b_p_tw);
case PV_UDF: return (char_u *)&(curbuf->b_p_udf);
case PV_WM: return (char_u *)&(curbuf->b_p_wm);
case PV_KMAP: return (char_u *)&(curbuf->b_p_keymap);
case PV_SCL: return (char_u *)&(curwin->w_p_scl);
case PV_WINHL: return (char_u *)&(curwin->w_p_winhl);
case PV_WINBL: return (char_u *)&(curwin->w_p_winbl);
default: IEMSG(_("E356: get_varp ERROR"));
}
// always return a valid pointer to avoid a crash!
return (char_u *)&(curbuf->b_p_wm);
}
/*
* Get the value of 'equalprg', either the buffer-local one or the global one.
*/
char_u *get_equalprg(void)
{
if (*curbuf->b_p_ep == NUL) {
return p_ep;
}
return curbuf->b_p_ep;
}
/*
* Copy options from one window to another.
* Used when splitting a window.
*/
void win_copy_options(win_T *wp_from, win_T *wp_to)
{
copy_winopt(&wp_from->w_onebuf_opt, &wp_to->w_onebuf_opt);
copy_winopt(&wp_from->w_allbuf_opt, &wp_to->w_allbuf_opt);
}
/*
* Copy the options from one winopt_T to another.
* Doesn't free the old option values in "to", use clear_winopt() for that.
* The 'scroll' option is not copied, because it depends on the window height.
* The 'previewwindow' option is reset, there can be only one preview window.
*/
void copy_winopt(winopt_T *from, winopt_T *to)
{
to->wo_arab = from->wo_arab;
to->wo_list = from->wo_list;
to->wo_nu = from->wo_nu;
to->wo_rnu = from->wo_rnu;
to->wo_nuw = from->wo_nuw;
to->wo_rl = from->wo_rl;
to->wo_rlc = vim_strsave(from->wo_rlc);
to->wo_stl = vim_strsave(from->wo_stl);
to->wo_wrap = from->wo_wrap;
to->wo_wrap_save = from->wo_wrap_save;
to->wo_lbr = from->wo_lbr;
to->wo_bri = from->wo_bri;
to->wo_briopt = vim_strsave(from->wo_briopt);
to->wo_scb = from->wo_scb;
to->wo_scb_save = from->wo_scb_save;
to->wo_crb = from->wo_crb;
to->wo_crb_save = from->wo_crb_save;
to->wo_spell = from->wo_spell;
to->wo_cuc = from->wo_cuc;
to->wo_cul = from->wo_cul;
to->wo_cc = vim_strsave(from->wo_cc);
to->wo_diff = from->wo_diff;
to->wo_diff_saved = from->wo_diff_saved;
to->wo_cocu = vim_strsave(from->wo_cocu);
to->wo_cole = from->wo_cole;
to->wo_fdc = from->wo_fdc;
to->wo_fdc_save = from->wo_fdc_save;
to->wo_fen = from->wo_fen;
to->wo_fen_save = from->wo_fen_save;
to->wo_fdi = vim_strsave(from->wo_fdi);
to->wo_fml = from->wo_fml;
to->wo_fdl = from->wo_fdl;
to->wo_fdl_save = from->wo_fdl_save;
to->wo_fdm = vim_strsave(from->wo_fdm);
to->wo_fdm_save = from->wo_diff_saved
? vim_strsave(from->wo_fdm_save) : empty_option;
to->wo_fdn = from->wo_fdn;
to->wo_fde = vim_strsave(from->wo_fde);
to->wo_fdt = vim_strsave(from->wo_fdt);
to->wo_fmr = vim_strsave(from->wo_fmr);
to->wo_scl = vim_strsave(from->wo_scl);
to->wo_winhl = vim_strsave(from->wo_winhl);
to->wo_fcs = vim_strsave(from->wo_fcs);
to->wo_lcs = vim_strsave(from->wo_lcs);
to->wo_winbl = from->wo_winbl;
check_winopt(to); // don't want NULL pointers
}
/*
* Check string options in a window for a NULL value.
*/
void check_win_options(win_T *win)
{
check_winopt(&win->w_onebuf_opt);
check_winopt(&win->w_allbuf_opt);
}
/*
* Check for NULL pointers in a winopt_T and replace them with empty_option.
*/
static void check_winopt(winopt_T *wop)
{
check_string_option(&wop->wo_fdi);
check_string_option(&wop->wo_fdm);
check_string_option(&wop->wo_fdm_save);
check_string_option(&wop->wo_fde);
check_string_option(&wop->wo_fdt);
check_string_option(&wop->wo_fmr);
check_string_option(&wop->wo_scl);
check_string_option(&wop->wo_rlc);
check_string_option(&wop->wo_stl);
check_string_option(&wop->wo_cc);
check_string_option(&wop->wo_cocu);
check_string_option(&wop->wo_briopt);
check_string_option(&wop->wo_winhl);
check_string_option(&wop->wo_fcs);
check_string_option(&wop->wo_lcs);
}
/*
* Free the allocated memory inside a winopt_T.
*/
void clear_winopt(winopt_T *wop)
{
clear_string_option(&wop->wo_fdi);
clear_string_option(&wop->wo_fdm);
clear_string_option(&wop->wo_fdm_save);
clear_string_option(&wop->wo_fde);
clear_string_option(&wop->wo_fdt);
clear_string_option(&wop->wo_fmr);
clear_string_option(&wop->wo_scl);
clear_string_option(&wop->wo_rlc);
clear_string_option(&wop->wo_stl);
clear_string_option(&wop->wo_cc);
clear_string_option(&wop->wo_cocu);
clear_string_option(&wop->wo_briopt);
clear_string_option(&wop->wo_winhl);
clear_string_option(&wop->wo_fcs);
clear_string_option(&wop->wo_lcs);
}
void didset_window_options(win_T *wp)
{
check_colorcolumn(wp);
briopt_check(wp);
set_chars_option(wp, &wp->w_p_fcs, true);
set_chars_option(wp, &wp->w_p_lcs, true);
parse_winhl_opt(wp); // sets w_hl_needs_update also for w_p_winbl
wp->w_grid.blending = wp->w_p_winbl > 0;
}
/*
* Copy global option values to local options for one buffer.
* Used when creating a new buffer and sometimes when entering a buffer.
* flags:
* BCO_ENTER We will enter the buf buffer.
* BCO_ALWAYS Always copy the options, but only set b_p_initialized when
* appropriate.
* BCO_NOHELP Don't copy the values to a help buffer.
*/
void buf_copy_options(buf_T *buf, int flags)
{
int should_copy = true;
char_u *save_p_isk = NULL; // init for GCC
int dont_do_help;
int did_isk = false;
/*
* Skip this when the option defaults have not been set yet. Happens when
* main() allocates the first buffer.
*/
if (p_cpo != NULL) {
//
// Always copy when entering and 'cpo' contains 'S'.
// Don't copy when already initialized.
// Don't copy when 'cpo' contains 's' and not entering.
// 'S' BCO_ENTER initialized 's' should_copy
// yes yes X X true
// yes no yes X false
// no X yes X false
// X no no yes false
// X no no no true
// no yes no X true
///
if ((vim_strchr(p_cpo, CPO_BUFOPTGLOB) == NULL || !(flags & BCO_ENTER))
&& (buf->b_p_initialized
|| (!(flags & BCO_ENTER)
&& vim_strchr(p_cpo, CPO_BUFOPT) != NULL))) {
should_copy = false;
}
if (should_copy || (flags & BCO_ALWAYS)) {
/* Don't copy the options specific to a help buffer when
* BCO_NOHELP is given or the options were initialized already
* (jumping back to a help file with CTRL-T or CTRL-O) */
dont_do_help = ((flags & BCO_NOHELP) && buf->b_help)
|| buf->b_p_initialized;
if (dont_do_help) { // don't free b_p_isk
save_p_isk = buf->b_p_isk;
buf->b_p_isk = NULL;
}
/*
* Always free the allocated strings.
* If not already initialized, set 'readonly' and copy 'fileformat'.
*/
if (!buf->b_p_initialized) {
free_buf_options(buf, true);
buf->b_p_ro = false; // don't copy readonly
buf->b_p_fenc = vim_strsave(p_fenc);
switch (*p_ffs) {
case 'm': {
buf->b_p_ff = vim_strsave((char_u *)FF_MAC);
break;
}
case 'd': {
buf->b_p_ff = vim_strsave((char_u *)FF_DOS);
break;
}
case 'u': {
buf->b_p_ff = vim_strsave((char_u *)FF_UNIX);
break;
}
default: {
buf->b_p_ff = vim_strsave(p_ff);
break;
}
}
buf->b_p_bh = empty_option;
buf->b_p_bt = empty_option;
} else {
free_buf_options(buf, false);
}
buf->b_p_ai = p_ai;
buf->b_p_ai_nopaste = p_ai_nopaste;
buf->b_p_sw = p_sw;
buf->b_p_scbk = p_scbk;
buf->b_p_tw = p_tw;
buf->b_p_tw_nopaste = p_tw_nopaste;
buf->b_p_tw_nobin = p_tw_nobin;
buf->b_p_wm = p_wm;
buf->b_p_wm_nopaste = p_wm_nopaste;
buf->b_p_wm_nobin = p_wm_nobin;
buf->b_p_bin = p_bin;
buf->b_p_bomb = p_bomb;
buf->b_p_et = p_et;
buf->b_p_fixeol = p_fixeol;
buf->b_p_et_nobin = p_et_nobin;
buf->b_p_et_nopaste = p_et_nopaste;
buf->b_p_ml = p_ml;
buf->b_p_ml_nobin = p_ml_nobin;
buf->b_p_inf = p_inf;
buf->b_p_swf = cmdmod.noswapfile ? false : p_swf;
buf->b_p_cpt = vim_strsave(p_cpt);
buf->b_p_cfu = vim_strsave(p_cfu);
buf->b_p_ofu = vim_strsave(p_ofu);
buf->b_p_tfu = vim_strsave(p_tfu);
buf->b_p_sts = p_sts;
buf->b_p_sts_nopaste = p_sts_nopaste;
buf->b_p_com = vim_strsave(p_com);
buf->b_p_cms = vim_strsave(p_cms);
buf->b_p_fo = vim_strsave(p_fo);
buf->b_p_flp = vim_strsave(p_flp);
buf->b_p_nf = vim_strsave(p_nf);
buf->b_p_mps = vim_strsave(p_mps);
buf->b_p_si = p_si;
buf->b_p_channel = 0;
buf->b_p_ci = p_ci;
buf->b_p_cin = p_cin;
buf->b_p_cink = vim_strsave(p_cink);
buf->b_p_cino = vim_strsave(p_cino);
// Don't copy 'filetype', it must be detected
buf->b_p_ft = empty_option;
buf->b_p_pi = p_pi;
buf->b_p_cinw = vim_strsave(p_cinw);
buf->b_p_lisp = p_lisp;
// Don't copy 'syntax', it must be set
buf->b_p_syn = empty_option;
buf->b_p_smc = p_smc;
buf->b_s.b_syn_isk = empty_option;
buf->b_s.b_p_spc = vim_strsave(p_spc);
(void)compile_cap_prog(&buf->b_s);
buf->b_s.b_p_spf = vim_strsave(p_spf);
buf->b_s.b_p_spl = vim_strsave(p_spl);
buf->b_p_inde = vim_strsave(p_inde);
buf->b_p_indk = vim_strsave(p_indk);
buf->b_p_fp = empty_option;
buf->b_p_fex = vim_strsave(p_fex);
buf->b_p_sua = vim_strsave(p_sua);
buf->b_p_keymap = vim_strsave(p_keymap);
buf->b_kmap_state |= KEYMAP_INIT;
/* This isn't really an option, but copying the langmap and IME
* state from the current buffer is better than resetting it. */
buf->b_p_iminsert = p_iminsert;
buf->b_p_imsearch = p_imsearch;
/* options that are normally global but also have a local value
* are not copied, start using the global value */
buf->b_p_ar = -1;
buf->b_p_ul = NO_LOCAL_UNDOLEVEL;
buf->b_p_bkc = empty_option;
buf->b_bkc_flags = 0;
buf->b_p_gp = empty_option;
buf->b_p_mp = empty_option;
buf->b_p_efm = empty_option;
buf->b_p_ep = empty_option;
buf->b_p_kp = empty_option;
buf->b_p_path = empty_option;
buf->b_p_tags = empty_option;
buf->b_p_tc = empty_option;
buf->b_tc_flags = 0;
buf->b_p_def = empty_option;
buf->b_p_inc = empty_option;
buf->b_p_inex = vim_strsave(p_inex);
buf->b_p_dict = empty_option;
buf->b_p_tsr = empty_option;
buf->b_p_qe = vim_strsave(p_qe);
buf->b_p_udf = p_udf;
buf->b_p_lw = empty_option;
buf->b_p_menc = empty_option;
/*
* Don't copy the options set by ex_help(), use the saved values,
* when going from a help buffer to a non-help buffer.
* Don't touch these at all when BCO_NOHELP is used and going from
* or to a help buffer.
*/
if (dont_do_help) {
buf->b_p_isk = save_p_isk;
} else {
buf->b_p_isk = vim_strsave(p_isk);
did_isk = true;
buf->b_p_ts = p_ts;
buf->b_help = false;
if (buf->b_p_bt[0] == 'h') {
clear_string_option(&buf->b_p_bt);
}
buf->b_p_ma = p_ma;
}
}
/*
* When the options should be copied (ignoring BCO_ALWAYS), set the
* flag that indicates that the options have been initialized.
*/
if (should_copy) {
buf->b_p_initialized = true;
}
}
check_buf_options(buf); // make sure we don't have NULLs
if (did_isk) {
(void)buf_init_chartab(buf, false);
}
}
/*
* Reset the 'modifiable' option and its default value.
*/
void reset_modifiable(void)
{
int opt_idx;
curbuf->b_p_ma = false;
p_ma = false;
opt_idx = findoption("ma");
if (opt_idx >= 0) {
options[opt_idx].def_val[VI_DEFAULT] = false;
}
}
/*
* Set the global value for 'iminsert' to the local value.
*/
void set_iminsert_global(void)
{
p_iminsert = curbuf->b_p_iminsert;
}
/*
* Set the global value for 'imsearch' to the local value.
*/
void set_imsearch_global(void)
{
p_imsearch = curbuf->b_p_imsearch;
}
static int expand_option_idx = -1;
static char_u expand_option_name[5] = {'t', '_', NUL, NUL, NUL};
static int expand_option_flags = 0;
void
set_context_in_set_cmd(
expand_T *xp,
char_u *arg,
int opt_flags // OPT_GLOBAL and/or OPT_LOCAL
)
{
char_u nextchar;
uint32_t flags = 0; // init for GCC
int opt_idx = 0; // init for GCC
char_u *p;
char_u *s;
int is_term_option = false;
int key;
expand_option_flags = opt_flags;
xp->xp_context = EXPAND_SETTINGS;
if (*arg == NUL) {
xp->xp_pattern = arg;
return;
}
p = arg + STRLEN(arg) - 1;
if (*p == ' ' && *(p - 1) != '\\') {
xp->xp_pattern = p + 1;
return;
}
while (p > arg) {
s = p;
// count number of backslashes before ' ' or ','
if (*p == ' ' || *p == ',') {
while (s > arg && *(s - 1) == '\\') {
s--;
}
}
// break at a space with an even number of backslashes
if (*p == ' ' && ((p - s) & 1) == 0) {
p++;
break;
}
p--;
}
if (STRNCMP(p, "no", 2) == 0) {
xp->xp_context = EXPAND_BOOL_SETTINGS;
p += 2;
}
if (STRNCMP(p, "inv", 3) == 0) {
xp->xp_context = EXPAND_BOOL_SETTINGS;
p += 3;
}
xp->xp_pattern = arg = p;
if (*arg == '<') {
while (*p != '>') {
if (*p++ == NUL) { // expand terminal option name
return;
}
}
key = get_special_key_code(arg + 1);
if (key == 0) { // unknown name
xp->xp_context = EXPAND_NOTHING;
return;
}
nextchar = *++p;
is_term_option = true;
expand_option_name[2] = (char_u)KEY2TERMCAP0(key);
expand_option_name[3] = KEY2TERMCAP1(key);
} else {
if (p[0] == 't' && p[1] == '_') {
p += 2;
if (*p != NUL) {
p++;
}
if (*p == NUL) {
return; // expand option name
}
nextchar = *++p;
is_term_option = true;
expand_option_name[2] = p[-2];
expand_option_name[3] = p[-1];
} else {
// Allow * wildcard.
while (ASCII_ISALNUM(*p) || *p == '_' || *p == '*') {
p++;
}
if (*p == NUL) {
return;
}
nextchar = *p;
opt_idx = findoption_len((const char *)arg, (size_t)(p - arg));
if (opt_idx == -1 || options[opt_idx].var == NULL) {
xp->xp_context = EXPAND_NOTHING;
return;
}
flags = options[opt_idx].flags;
if (flags & P_BOOL) {
xp->xp_context = EXPAND_NOTHING;
return;
}
}
}
// handle "-=" and "+="
if ((nextchar == '-' || nextchar == '+' || nextchar == '^') && p[1] == '=') {
p++;
nextchar = '=';
}
if ((nextchar != '=' && nextchar != ':')
|| xp->xp_context == EXPAND_BOOL_SETTINGS) {
xp->xp_context = EXPAND_UNSUCCESSFUL;
return;
}
if (p[1] == NUL) {
xp->xp_context = EXPAND_OLD_SETTING;
if (is_term_option) {
expand_option_idx = -1;
} else {
expand_option_idx = opt_idx;
}
xp->xp_pattern = p + 1;
return;
}
xp->xp_context = EXPAND_NOTHING;
if (is_term_option || (flags & P_NUM)) {
return;
}
xp->xp_pattern = p + 1;
if (flags & P_EXPAND) {
p = options[opt_idx].var;
if (p == (char_u *)&p_bdir
|| p == (char_u *)&p_dir
|| p == (char_u *)&p_path
|| p == (char_u *)&p_pp
|| p == (char_u *)&p_rtp
|| p == (char_u *)&p_cdpath
|| p == (char_u *)&p_vdir
) {
xp->xp_context = EXPAND_DIRECTORIES;
if (p == (char_u *)&p_path
|| p == (char_u *)&p_cdpath
)
xp->xp_backslash = XP_BS_THREE;
else
xp->xp_backslash = XP_BS_ONE;
} else {
xp->xp_context = EXPAND_FILES;
// for 'tags' need three backslashes for a space
if (p == (char_u *)&p_tags) {
xp->xp_backslash = XP_BS_THREE;
} else {
xp->xp_backslash = XP_BS_ONE;
}
}
}
/* For an option that is a list of file names, find the start of the
* last file name. */
for (p = arg + STRLEN(arg) - 1; p > xp->xp_pattern; p--) {
// count number of backslashes before ' ' or ','
if (*p == ' ' || *p == ',') {
s = p;
while (s > xp->xp_pattern && *(s - 1) == '\\') {
s--;
}
if ((*p == ' ' && (xp->xp_backslash == XP_BS_THREE && (p - s) < 3))
|| (*p == ',' && (flags & P_COMMA) && ((p - s) & 1) == 0)) {
xp->xp_pattern = p + 1;
break;
}
}
// for 'spellsuggest' start at "file:"
if (options[opt_idx].var == (char_u *)&p_sps
&& STRNCMP(p, "file:", 5) == 0) {
xp->xp_pattern = p + 5;
break;
}
}
return;
}
int ExpandSettings(expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file)
{
int num_normal = 0; // Nr of matching non-term-code settings
int match;
int count = 0;
char_u *str;
int loop;
static char *(names[]) = { "all" };
int ic = regmatch->rm_ic; // remember the ignore-case flag
/* do this loop twice:
* loop == 0: count the number of matching options
* loop == 1: copy the matching options into allocated memory
*/
for (loop = 0; loop <= 1; loop++) {
regmatch->rm_ic = ic;
if (xp->xp_context != EXPAND_BOOL_SETTINGS) {
for (match = 0; match < (int)ARRAY_SIZE(names);
match++) {
if (vim_regexec(regmatch, (char_u *)names[match], (colnr_T)0)) {
if (loop == 0) {
num_normal++;
} else {
(*file)[count++] = vim_strsave((char_u *)names[match]);
}
}
}
}
for (size_t opt_idx = 0; (str = (char_u *)options[opt_idx].fullname) != NULL;
opt_idx++) {
if (options[opt_idx].var == NULL) {
continue;
}
if (xp->xp_context == EXPAND_BOOL_SETTINGS
&& !(options[opt_idx].flags & P_BOOL)) {
continue;
}
match = false;
if (vim_regexec(regmatch, str, (colnr_T)0)
|| (options[opt_idx].shortname != NULL
&& vim_regexec(regmatch,
(char_u *)options[opt_idx].shortname,
(colnr_T)0))) {
match = true;
}
if (match) {
if (loop == 0) {
num_normal++;
} else
(*file)[count++] = vim_strsave(str);
}
}
if (loop == 0) {
if (num_normal > 0) {
*num_file = num_normal;
} else {
return OK;
}
*file = (char_u **)xmalloc((size_t)(*num_file) * sizeof(char_u *));
}
}
return OK;
}
void ExpandOldSetting(int *num_file, char_u ***file)
{
char_u *var = NULL;
*num_file = 0;
*file = (char_u **)xmalloc(sizeof(char_u *));
/*
* For a terminal key code expand_option_idx is < 0.
*/
if (expand_option_idx < 0) {
expand_option_idx = findoption((const char *)expand_option_name);
}
if (expand_option_idx >= 0) {
// Put string of option value in NameBuff.
option_value2string(&options[expand_option_idx], expand_option_flags);
var = NameBuff;
} else {
var = (char_u *)"";
}
// A backslash is required before some characters. This is the reverse of
// what happens in do_set().
char_u *buf = vim_strsave_escaped(var, escape_chars);
#ifdef BACKSLASH_IN_FILENAME
/* For MS-Windows et al. we don't double backslashes at the start and
* before a file name character. */
for (var = buf; *var != NUL; MB_PTR_ADV(var)) {
if (var[0] == '\\' && var[1] == '\\'
&& expand_option_idx >= 0
&& (options[expand_option_idx].flags & P_EXPAND)
&& vim_isfilec(var[2])
&& (var[2] != '\\' || (var == buf && var[4] != '\\'))) {
STRMOVE(var, var + 1);
}
}
#endif
*file[0] = buf;
*num_file = 1;
}
/*
* Get the value for the numeric or string option *opp in a nice format into
* NameBuff[]. Must not be called with a hidden option!
*/
static void
option_value2string(
vimoption_T *opp,
int opt_flags // OPT_GLOBAL and/or OPT_LOCAL
)
{
char_u *varp;
varp = get_varp_scope(opp, opt_flags);
if (opp->flags & P_NUM) {
long wc = 0;
if (wc_use_keyname(varp, &wc)) {
STRLCPY(NameBuff, get_special_key_name((int)wc, 0), sizeof(NameBuff));
} else if (wc != 0) {
STRLCPY(NameBuff, transchar((int)wc), sizeof(NameBuff));
} else {
snprintf((char *)NameBuff,
sizeof(NameBuff),
"%" PRId64,
(int64_t)*(long *)varp);
}
} else { // P_STRING
varp = *(char_u **)(varp);
if (varp == NULL) { // Just in case.
NameBuff[0] = NUL;
} else if (opp->flags & P_EXPAND) {
home_replace(NULL, varp, NameBuff, MAXPATHL, false);
// Translate 'pastetoggle' into special key names.
} else if ((char_u **)opp->var == &p_pt) {
str2specialbuf((const char *)p_pt, (char *)NameBuff, MAXPATHL);
} else {
STRLCPY(NameBuff, varp, MAXPATHL);
}
}
}
/// Return true if "varp" points to 'wildchar' or 'wildcharm' and it can be
/// printed as a keyname.
/// "*wcp" is set to the value of the option if it's 'wildchar' or 'wildcharm'.
static int wc_use_keyname(char_u *varp, long *wcp)
{
if (((long *)varp == &p_wc) || ((long *)varp == &p_wcm)) {
*wcp = *(long *)varp;
if (IS_SPECIAL(*wcp) || find_special_key_in_table((int)(*wcp)) >= 0) {
return true;
}
}
return false;
}
/*
* Any character has an equivalent 'langmap' character. This is used for
* keyboards that have a special language mode that sends characters above
* 128 (although other characters can be translated too). The "to" field is a
* Vim command character. This avoids having to switch the keyboard back to
* ASCII mode when leaving Insert mode.
*
* langmap_mapchar[] maps any of 256 chars to an ASCII char used for Vim
* commands.
* langmap_mapga.ga_data is a sorted table of langmap_entry_T.
* This does the same as langmap_mapchar[] for characters >= 256.
*/
/*
* With multi-byte support use growarray for 'langmap' chars >= 256
*/
typedef struct {
int from;
int to;
} langmap_entry_T;
static garray_T langmap_mapga = GA_EMPTY_INIT_VALUE;
/*
* Search for an entry in "langmap_mapga" for "from". If found set the "to"
* field. If not found insert a new entry at the appropriate location.
*/
static void langmap_set_entry(int from, int to)
{
langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
unsigned int a = 0;
assert(langmap_mapga.ga_len >= 0);
unsigned int b = (unsigned int)langmap_mapga.ga_len;
// Do a binary search for an existing entry.
while (a != b) {
unsigned int i = (a + b) / 2;
int d = entries[i].from - from;
if (d == 0) {
entries[i].to = to;
return;
}
if (d < 0) {
a = i + 1;
} else {
b = i;
}
}
ga_grow(&langmap_mapga, 1);
// insert new entry at position "a"
entries = (langmap_entry_T *)(langmap_mapga.ga_data) + a;
memmove(entries + 1, entries,
((unsigned int)langmap_mapga.ga_len - a) * sizeof(langmap_entry_T));
langmap_mapga.ga_len++;
entries[0].from = from;
entries[0].to = to;
}
/*
* Apply 'langmap' to multi-byte character "c" and return the result.
*/
int langmap_adjust_mb(int c)
{
langmap_entry_T *entries = (langmap_entry_T *)(langmap_mapga.ga_data);
int a = 0;
int b = langmap_mapga.ga_len;
while (a != b) {
int i = (a + b) / 2;
int d = entries[i].from - c;
if (d == 0) {
return entries[i].to; // found matching entry
}
if (d < 0) {
a = i + 1;
} else {
b = i;
}
}
return c; // no entry found, return "c" unmodified
}
static void langmap_init(void)
{
for (int i = 0; i < 256; i++) {
langmap_mapchar[i] = (char_u)i; // we init with a one-to-one map
}
ga_init(&langmap_mapga, sizeof(langmap_entry_T), 8);
}
/*
* Called when langmap option is set; the language map can be
* changed at any time!
*/
static void langmap_set(void)
{
char_u *p;
char_u *p2;
int from, to;
ga_clear(&langmap_mapga); // clear the previous map first
langmap_init(); // back to one-to-one map
for (p = p_langmap; p[0] != NUL; ) {
for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
MB_PTR_ADV(p2)) {
if (p2[0] == '\\' && p2[1] != NUL) {
p2++;
}
}
if (p2[0] == ';') {
p2++; // abcd;ABCD form, p2 points to A
} else {
p2 = NULL; // aAbBcCdD form, p2 is NULL
}
while (p[0]) {
if (p[0] == ',') {
p++;
break;
}
if (p[0] == '\\' && p[1] != NUL) {
p++;
}
from = utf_ptr2char(p);
to = NUL;
if (p2 == NULL) {
MB_PTR_ADV(p);
if (p[0] != ',') {
if (p[0] == '\\') {
p++;
}
to = utf_ptr2char(p);
}
} else {
if (p2[0] != ',') {
if (p2[0] == '\\') {
p2++;
}
to = utf_ptr2char(p2);
}
}
if (to == NUL) {
EMSG2(_("E357: 'langmap': Matching character missing for %s"),
transchar(from));
return;
}
if (from >= 256) {
langmap_set_entry(from, to);
} else {
assert(to <= UCHAR_MAX);
langmap_mapchar[from & 255] = (char_u)to;
}
// Advance to next pair
MB_PTR_ADV(p);
if (p2 != NULL) {
MB_PTR_ADV(p2);
if (*p == ';') {
p = p2;
if (p[0] != NUL) {
if (p[0] != ',') {
EMSG2(_(
"E358: 'langmap': Extra characters after semicolon: %s"),
p);
return;
}
p++;
}
break;
}
}
}
}
}
/// Return true if format option 'x' is in effect.
/// Take care of no formatting when 'paste' is set.
int has_format_option(int x)
{
if (p_paste) {
return false;
}
return vim_strchr(curbuf->b_p_fo, x) != NULL;
}
/// @returns true if "x" is present in 'shortmess' option, or
/// 'shortmess' contains 'a' and "x" is present in SHM_ALL_ABBREVIATIONS.
bool shortmess(int x)
{
return (p_shm != NULL
&& (vim_strchr(p_shm, x) != NULL
|| (vim_strchr(p_shm, 'a') != NULL
&& vim_strchr((char_u *)SHM_ALL_ABBREVIATIONS, x) != NULL)));
}
/*
* paste_option_changed() - Called after p_paste was set or reset.
*/
static void paste_option_changed(void)
{
static int old_p_paste = false;
static int save_sm = 0;
static int save_sta = 0;
static int save_ru = 0;
static int save_ri = 0;
static int save_hkmap = 0;
if (p_paste) {
/*
* Paste switched from off to on.
* Save the current values, so they can be restored later.
*/
if (!old_p_paste) {
// save options for each buffer
FOR_ALL_BUFFERS(buf) {
buf->b_p_tw_nopaste = buf->b_p_tw;
buf->b_p_wm_nopaste = buf->b_p_wm;
buf->b_p_sts_nopaste = buf->b_p_sts;
buf->b_p_ai_nopaste = buf->b_p_ai;
buf->b_p_et_nopaste = buf->b_p_et;
}
// save global options
save_sm = p_sm;
save_sta = p_sta;
save_ru = p_ru;
save_ri = p_ri;
save_hkmap = p_hkmap;
// save global values for local buffer options
p_ai_nopaste = p_ai;
p_et_nopaste = p_et;
p_sts_nopaste = p_sts;
p_tw_nopaste = p_tw;
p_wm_nopaste = p_wm;
}
// Always set the option values, also when 'paste' is set when it is
// already on.
// set options for each buffer
FOR_ALL_BUFFERS(buf) {
buf->b_p_tw = 0; // textwidth is 0
buf->b_p_wm = 0; // wrapmargin is 0
buf->b_p_sts = 0; // softtabstop is 0
buf->b_p_ai = 0; // no auto-indent
buf->b_p_et = 0; // no expandtab
}
// set global options
p_sm = 0; // no showmatch
p_sta = 0; // no smarttab
if (p_ru) {
status_redraw_all(); // redraw to remove the ruler
}
p_ru = 0; // no ruler
p_ri = 0; // no reverse insert
p_hkmap = 0; // no Hebrew keyboard
// set global values for local buffer options
p_tw = 0;
p_wm = 0;
p_sts = 0;
p_ai = 0;
} else if (old_p_paste) {
// Paste switched from on to off: Restore saved values.
// restore options for each buffer
FOR_ALL_BUFFERS(buf) {
buf->b_p_tw = buf->b_p_tw_nopaste;
buf->b_p_wm = buf->b_p_wm_nopaste;
buf->b_p_sts = buf->b_p_sts_nopaste;
buf->b_p_ai = buf->b_p_ai_nopaste;
buf->b_p_et = buf->b_p_et_nopaste;
}
// restore global options
p_sm = save_sm;
p_sta = save_sta;
if (p_ru != save_ru) {
status_redraw_all(); // redraw to draw the ruler
}
p_ru = save_ru;
p_ri = save_ri;
p_hkmap = save_hkmap;
// set global values for local buffer options
p_ai = p_ai_nopaste;
p_et = p_et_nopaste;
p_sts = p_sts_nopaste;
p_tw = p_tw_nopaste;
p_wm = p_wm_nopaste;
}
old_p_paste = p_paste;
}
/// vimrc_found() - Called when a vimrc or "VIMINIT" has been found.
///
/// Set the values for options that didn't get set yet to the Vim defaults.
/// When "fname" is not NULL, use it to set $"envname" when it wasn't set yet.
void vimrc_found(char_u *fname, char_u *envname)
{
if (fname != NULL && envname != NULL) {
char *p = vim_getenv((char *)envname);
if (p == NULL) {
// Set $MYVIMRC to the first vimrc file found.
p = FullName_save((char *)fname, false);
if (p != NULL) {
os_setenv((char *)envname, p, 1);
xfree(p);
}
} else {
xfree(p);
}
}
}
/// Check whether global option has been set
///
/// @param[in] name Option name.
///
/// @return True if it was set.
bool option_was_set(const char *name)
{
int idx;
idx = findoption(name);
if (idx < 0) { // Unknown option.
return false;
} else if (options[idx].flags & P_WAS_SET) {
return true;
}
return false;
}
/// Reset the flag indicating option "name" was set.
///
/// @param[in] name Option name.
void reset_option_was_set(const char *name)
{
const int idx = findoption(name);
if (idx >= 0) {
options[idx].flags &= ~P_WAS_SET;
}
}
/*
* fill_breakat_flags() -- called when 'breakat' changes value.
*/
static void fill_breakat_flags(void)
{
char_u *p;
int i;
for (i = 0; i < 256; i++) {
breakat_flags[i] = false;
}
if (p_breakat != NULL) {
for (p = p_breakat; *p; p++) {
breakat_flags[*p] = true;
}
}
}
/*
* 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,
bool list // when true: accept a list of values
)
{
unsigned int new_flags = 0;
while (*val) {
for (unsigned int i = 0;; i++) {
if (values[i] == NULL) { // val not found in values[]
return FAIL;
}
size_t len = STRLEN(values[i]);
if (STRNCMP(values[i], val, len) == 0
&& ((list && val[len] == ',') || val[len] == NUL)) {
val += len + (val[len] == ',');
assert(i < sizeof(1U) * 8);
new_flags |= (1U << i);
break; // check next item in val list
}
}
}
if (flagp != NULL) {
*flagp = new_flags;
}
return OK;
}
/*
* Read the 'wildmode' option, fill wim_flags[].
*/
static int check_opt_wim(void)
{
char_u new_wim_flags[4];
char_u *p;
int i;
int idx = 0;
for (i = 0; i < 4; i++) {
new_wim_flags[i] = 0;
}
for (p = p_wim; *p; p++) {
for (i = 0; ASCII_ISALPHA(p[i]); i++) {}
if (p[i] != NUL && p[i] != ',' && p[i] != ':') {
return FAIL;
}
if (i == 7 && STRNCMP(p, "longest", 7) == 0) {
new_wim_flags[idx] |= WIM_LONGEST;
} else if (i == 4 && STRNCMP(p, "full", 4) == 0) {
new_wim_flags[idx] |= WIM_FULL;
} else if (i == 4 && STRNCMP(p, "list", 4) == 0) {
new_wim_flags[idx] |= WIM_LIST;
} else {
return FAIL;
}
p += i;
if (*p == NUL) {
break;
}
if (*p == ',') {
if (idx == 3) {
return FAIL;
}
idx++;
}
}
// fill remaining entries with last flag
while (idx < 3) {
new_wim_flags[idx + 1] = new_wim_flags[idx];
idx++;
}
// only when there are no errors, wim_flags[] is changed
for (i = 0; i < 4; i++) {
wim_flags[i] = new_wim_flags[i];
}
return OK;
}
/*
* Check if backspacing over something is allowed.
* The parameter what is one of the following: whatBS_INDENT, BS_EOL
* or BS_START
*/
bool can_bs(int what)
{
switch (*p_bs) {
case '2': return true;
case '1': return what != BS_START;
case '0': return false;
}
return vim_strchr(p_bs, what) != NULL;
}
/*
* Save the current values of 'fileformat' and 'fileencoding', so that we know
* the file must be considered changed when the value is different.
*/
void save_file_ff(buf_T *buf)
{
buf->b_start_ffc = *buf->b_p_ff;
buf->b_start_eol = buf->b_p_eol;
buf->b_start_bomb = buf->b_p_bomb;
// Only use free/alloc when necessary, they take time.
if (buf->b_start_fenc == NULL
|| STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0) {
xfree(buf->b_start_fenc);
buf->b_start_fenc = vim_strsave(buf->b_p_fenc);
}
}
/// Return true if 'fileformat' and/or 'fileencoding' has a different value
/// from when editing started (save_file_ff() called).
/// Also when 'endofline' was changed and 'binary' is set, or when 'bomb' was
/// changed and 'binary' is not set.
/// Also when 'endofline' was changed and 'fixeol' is not set.
/// When "ignore_empty" is true don't consider a new, empty buffer to be
/// changed.
bool file_ff_differs(buf_T *buf, bool ignore_empty)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
// In a buffer that was never loaded the options are not valid.
if (buf->b_flags & BF_NEVERLOADED) {
return false;
}
if (ignore_empty
&& (buf->b_flags & BF_NEW)
&& buf->b_ml.ml_line_count == 1
&& *ml_get_buf(buf, (linenr_T)1, false) == NUL) {
return false;
}
if (buf->b_start_ffc != *buf->b_p_ff) {
return true;
}
if ((buf->b_p_bin || !buf->b_p_fixeol) && buf->b_start_eol != buf->b_p_eol) {
return true;
}
if (!buf->b_p_bin && buf->b_start_bomb != buf->b_p_bomb) {
return true;
}
if (buf->b_start_fenc == NULL) {
return *buf->b_p_fenc != NUL;
}
return STRCMP(buf->b_start_fenc, buf->b_p_fenc) != 0;
}
/*
* 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);
}
/*
* Return the effective shiftwidth value for current buffer, using the
* 'tabstop' value when 'shiftwidth' is zero.
*/
int get_sw_value(buf_T *buf)
{
long result = buf->b_p_sw ? buf->b_p_sw : buf->b_p_ts;
assert(result >= 0 && result <= INT_MAX);
return (int)result;
}
// Return the effective softtabstop value for the current buffer,
// using the effective shiftwidth value when 'softtabstop' is negative.
int get_sts_value(void)
{
long result = curbuf->b_p_sts < 0 ? get_sw_value(curbuf) : curbuf->b_p_sts;
assert(result >= 0 && result <= INT_MAX);
return (int)result;
}
/*
* Check matchpairs option for "*initc".
* If there is a match set "*initc" to the matching character and "*findc" to
* the opposite character. Set "*backwards" to the direction.
* When "switchit" is true swap the direction.
*/
void find_mps_values(int *initc, int *findc, int *backwards, int switchit)
{
char_u *ptr = curbuf->b_p_mps;
while (*ptr != NUL) {
if (utf_ptr2char(ptr) == *initc) {
if (switchit) {
*findc = *initc;
*initc = utf_ptr2char(ptr + utfc_ptr2len(ptr) + 1);
*backwards = true;
} else {
*findc = utf_ptr2char(ptr + utfc_ptr2len(ptr) + 1);
*backwards = false;
}
return;
}
char_u *prev = ptr;
ptr += utfc_ptr2len(ptr) + 1;
if (utf_ptr2char(ptr) == *initc) {
if (switchit) {
*findc = *initc;
*initc = utf_ptr2char(prev);
*backwards = false;
} else {
*findc = utf_ptr2char(prev);
*backwards = true;
}
return;
}
ptr += utfc_ptr2len(ptr);
if (*ptr == ',') {
ptr++;
}
}
}
/// This is called when 'breakindentopt' is changed and when a window is
/// initialized
static bool briopt_check(win_T *wp)
{
int bri_shift = 0;
int bri_min = 20;
bool bri_sbr = false;
char_u *p = wp->w_p_briopt;
while (*p != NUL)
{
if (STRNCMP(p, "shift:", 6) == 0
&& ((p[6] == '-' && ascii_isdigit(p[7])) || ascii_isdigit(p[6])))
{
p += 6;
bri_shift = getdigits_int(&p, true, 0);
}
else if (STRNCMP(p, "min:", 4) == 0 && ascii_isdigit(p[4]))
{
p += 4;
bri_min = getdigits_int(&p, true, 0);
}
else if (STRNCMP(p, "sbr", 3) == 0)
{
p += 3;
bri_sbr = true;
}
if (*p != ',' && *p != NUL) {
return false;
}
if (*p == ',') {
p++;
}
}
wp->w_p_brishift = bri_shift;
wp->w_p_brimin = bri_min;
wp->w_p_brisbr = bri_sbr;
return true;
}
/// Get the local or global value of 'backupcopy'.
///
/// @param buf The buffer.
unsigned int get_bkc_value(buf_T *buf)
{
return buf->b_bkc_flags ? buf->b_bkc_flags : bkc_flags;
}
/// Return the current end-of-line type: EOL_DOS, EOL_UNIX or EOL_MAC.
int get_fileformat(buf_T *buf)
{
int c = *buf->b_p_ff;
if (buf->b_p_bin || c == 'u') {
return EOL_UNIX;
}
if (c == 'm') {
return EOL_MAC;
}
return EOL_DOS;
}
/// Like get_fileformat(), but override 'fileformat' with "p" for "++opt=val"
/// argument.
///
/// @param eap can be NULL!
int get_fileformat_force(buf_T *buf, exarg_T *eap)
{
int c;
if (eap != NULL && eap->force_ff != 0) {
c = eap->cmd[eap->force_ff];
} else {
if ((eap != NULL && eap->force_bin != 0)
? (eap->force_bin == FORCE_BIN) : buf->b_p_bin) {
return EOL_UNIX;
}
c = *buf->b_p_ff;
}
if (c == 'u') {
return EOL_UNIX;
}
if (c == 'm') {
return EOL_MAC;
}
return EOL_DOS;
}
/// Return the default fileformat from 'fileformats'.
int default_fileformat(void)
{
switch (*p_ffs) {
case 'm': return EOL_MAC;
case 'd': return EOL_DOS;
}
return EOL_UNIX;
}
/// Set the current end-of-line type to EOL_UNIX, EOL_MAC, or EOL_DOS.
///
/// Sets 'fileformat'.
///
/// @param eol_style End-of-line style.
/// @param opt_flags OPT_LOCAL and/or OPT_GLOBAL
void set_fileformat(int eol_style, int opt_flags)
{
char *p = NULL;
switch (eol_style) {
case EOL_UNIX:
p = FF_UNIX;
break;
case EOL_MAC:
p = FF_MAC;
break;
case EOL_DOS:
p = FF_DOS;
break;
}
// p is NULL if "eol_style" is EOL_UNKNOWN.
if (p != NULL) {
set_string_option_direct((char_u *)"ff",
-1,
(char_u *)p,
OPT_FREE | opt_flags,
0);
}
// This may cause the buffer to become (un)modified.
check_status(curbuf);
redraw_tabline = true;
need_maketitle = true; // Set window title later.
}
/// Skip to next part of an option argument: skip space and comma
char_u *skip_to_option_part(const char_u *p)
{
if (*p == ',') {
p++;
}
while (*p == ' ') {
p++;
}
return (char_u *)p;
}
/// Isolate one part of a string option separated by `sep_chars`.
///
/// @param[in,out] option advanced to the next part
/// @param[in,out] buf copy of the isolated part
/// @param[in] maxlen length of `buf`
/// @param[in] sep_chars chars that separate the option parts
///
/// @return length of `*option`
size_t copy_option_part(char_u **option, char_u *buf, size_t maxlen,
char *sep_chars)
{
size_t len = 0;
char_u *p = *option;
// skip '.' at start of option part, for 'suffixes'
if (*p == '.') {
buf[len++] = *p++;
}
while (*p != NUL && vim_strchr((char_u *)sep_chars, *p) == NULL) {
// Skip backslash before a separator character and space.
if (p[0] == '\\' && vim_strchr((char_u *)sep_chars, p[1]) != NULL) {
p++;
}
if (len < maxlen - 1) {
buf[len++] = *p;
}
p++;
}
buf[len] = NUL;
if (*p != NUL && *p != ',') { // skip non-standard separator
p++;
}
p = skip_to_option_part(p); // p points to next file name
*option = p;
return len;
}
/// Return true when 'shell' has "csh" in the tail.
int csh_like_shell(void)
{
return strstr((char *)path_tail(p_sh), "csh") != NULL;
}
/// Return the number of requested sign columns, based on current
/// buffer signs and on user configuration.
int win_signcol_count(win_T *wp)
{
int maximum = 1, needed_signcols;
const char *scl = (const char *)wp->w_p_scl;
if (*scl == 'n') {
return 0;
}
needed_signcols = buf_signcols(wp->w_buffer);
// yes or yes
if (!strncmp(scl, "yes:", 4)) {
// Fixed amount of columns
return scl[4] - '0';
}
if (*scl == 'y') {
return 1;
}
// auto or auto:<NUM>
if (!strncmp(scl, "auto:", 5)) {
// Variable depending on a configuration
maximum = scl[5] - '0';
}
return MIN(maximum, needed_signcols);
}
/// Get window or buffer local options
dict_T *get_winbuf_options(const int bufopt)
FUNC_ATTR_WARN_UNUSED_RESULT
{
dict_T *const d = tv_dict_alloc();
for (int opt_idx = 0; options[opt_idx].fullname; opt_idx++) {
struct vimoption *opt = &options[opt_idx];
if ((bufopt && (opt->indir & PV_BUF))
|| (!bufopt && (opt->indir & PV_WIN))) {
char_u *varp = get_varp(opt);
if (varp != NULL) {
if (opt->flags & P_STRING) {
tv_dict_add_str(d, opt->fullname, strlen(opt->fullname),
*(const char **)varp);
} else if (opt->flags & P_NUM) {
tv_dict_add_nr(d, opt->fullname, strlen(opt->fullname),
*(long *)varp);
} else {
tv_dict_add_nr(d, opt->fullname, strlen(opt->fullname), *(int *)varp);
}
}
}
}
return d;
}
Reference in New Issue View Git Blame Copy Permalink