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b656a954cfec0379a5bb2f7f5d1f28cbc03324df
neovim/src/nvim/main.c
Thiago de Arruda d6ed2b3a39 os/fs: Use module-local uv_loop_t instance 
This event loop is just a stub instance used in synchronous libuv function
calls, it needs to be decoupled from the main event loop in order to run it from
another thread.
2015-07-01 05:40:53 -03:00

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/*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
#define EXTERN
#include <assert.h>
#include <errno.h>
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <msgpack.h>
#include "nvim/ascii.h"
#include "nvim/vim.h"
#include "nvim/main.h"
#include "nvim/buffer.h"
#include "nvim/charset.h"
#include "nvim/diff.h"
#include "nvim/eval.h"
#include "nvim/ex_cmds.h"
#include "nvim/ex_cmds2.h"
#include "nvim/ex_docmd.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/getchar.h"
#include "nvim/hashtab.h"
#include "nvim/iconv.h"
#include "nvim/if_cscope.h"
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#include "nvim/mark.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/message.h"
#include "nvim/misc1.h"
#include "nvim/misc2.h"
#include "nvim/garray.h"
#include "nvim/log.h"
#include "nvim/memory.h"
#include "nvim/move.h"
#include "nvim/mouse.h"
#include "nvim/normal.h"
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/os_unix.h"
#include "nvim/path.h"
#include "nvim/profile.h"
#include "nvim/quickfix.h"
#include "nvim/screen.h"
#include "nvim/strings.h"
#include "nvim/syntax.h"
#include "nvim/ui.h"
#include "nvim/version.h"
#include "nvim/window.h"
#include "nvim/os/input.h"
#include "nvim/os/os.h"
#include "nvim/os/time.h"
#include "nvim/os/event.h"
#include "nvim/os/signal.h"
#include "nvim/msgpack_rpc/helpers.h"
#include "nvim/api/private/defs.h"
#include "nvim/api/private/helpers.h"
#include "nvim/api/private/handle.h"
/* Maximum number of commands from + or -c arguments. */
#define MAX_ARG_CMDS 10
/* values for "window_layout" */
#define WIN_HOR 1 /* "-o" horizontally split windows */
#define WIN_VER 2 /* "-O" vertically split windows */
#define WIN_TABS 3 /* "-p" windows on tab pages */
/* Struct for various parameters passed between main() and other functions. */
typedef struct {
int argc;
char **argv;
char *use_vimrc; // vimrc from -u argument
int n_commands; /* no. of commands from + or -c */
char *commands[MAX_ARG_CMDS]; // commands from + or -c arg
char_u cmds_tofree[MAX_ARG_CMDS]; /* commands that need free() */
int n_pre_commands; /* no. of commands from --cmd */
char *pre_commands[MAX_ARG_CMDS]; // commands from --cmd argument
int edit_type; /* type of editing to do */
char_u *tagname; /* tag from -t argument */
char_u *use_ef; /* 'errorfile' from -q argument */
int want_full_screen;
bool input_isatty; // stdin is a terminal
bool output_isatty; // stdout is a terminal
bool err_isatty; // stderr is a terminal
bool headless; // Dont try to start an user interface
// or read/write to stdio(unless
// embedding)
int no_swap_file; /* "-n" argument used */
int use_debug_break_level;
int window_count; /* number of windows to use */
int window_layout; /* 0, WIN_HOR, WIN_VER or WIN_TABS */
#if !defined(UNIX)
int literal; /* don't expand file names */
#endif
int diff_mode; /* start with 'diff' set */
} mparm_T;
/* Values for edit_type. */
#define EDIT_NONE 0 /* no edit type yet */
#define EDIT_FILE 1 /* file name argument[s] given, use argument list */
#define EDIT_STDIN 2 /* read file from stdin */
#define EDIT_TAG 3 /* tag name argument given, use tagname */
#define EDIT_QF 4 /* start in quickfix mode */
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "main.c.generated.h"
#endif
static char *argv0;
// Error messages
static const char *err_arg_missing = N_("Argument missing after");
static const char *err_opt_garbage = N_("Garbage after option argument");
static const char *err_opt_unknown = N_("Unknown option argument");
static const char *err_too_many_args = N_("Too many edit arguments");
static const char *err_extra_cmd =
N_("Too many \"+command\", \"-c command\" or \"--cmd command\" arguments");
/// Performs early initialization.
///
/// Needed for unit tests. Must be called after `time_init()`.
void early_init(void)
{
fs_init();
handle_init();
(void)mb_init(); // init mb_bytelen_tab[] to ones
eval_init(); // init global variables
// Init the table of Normal mode commands.
init_normal_cmds();
#if defined(HAVE_LOCALE_H)
// Setup to use the current locale (for ctype() and many other things).
// NOTE: Translated messages with encodings other than latin1 will not
// work until set_init_1() has been called!
init_locale();
#endif
// Allocate the first window and buffer.
// Can't do anything without it, exit when it fails.
if (!win_alloc_first()) {
mch_exit(0);
}
init_yank(); // init yank buffers
alist_init(&global_alist); // Init the argument list to empty.
global_alist.id = 0;
// Set the default values for the options.
// NOTE: Non-latin1 translated messages are working only after this,
// because this is where "has_mbyte" will be set, which is used by
// msg_outtrans_len_attr().
// First find out the home directory, needed to expand "~" in options.
init_homedir(); // find real value of $HOME
set_init_1();
TIME_MSG("inits 1");
set_lang_var(); // set v:lang and v:ctype
}
#ifdef MAKE_LIB
int nvim_main(int argc, char **argv)
#else
int main(int argc, char **argv)
#endif
{
argv0 = (char *)path_tail((char_u *)argv[0]);
char_u *fname = NULL; /* file name from command line */
mparm_T params; /* various parameters passed between
* main() and other functions. */
time_init();
/* Many variables are in "params" so that we can pass them to invoked
* functions without a lot of arguments. "argc" and "argv" are also
* copied, so that they can be changed. */
init_params(&params, argc, argv);
init_startuptime(&params);
early_init();
// Check if we have an interactive window.
check_and_set_isatty(&params);
// Get the name with which Nvim was invoked, with and without path.
set_vim_var_string(VV_PROGPATH, (char_u *)argv[0], -1);
set_vim_var_string(VV_PROGNAME, path_tail((char_u *)argv[0]), -1);
/*
* Process the command line arguments. File names are put in the global
* argument list "global_alist".
*/
command_line_scan(&params);
if (GARGCOUNT > 0)
fname = get_fname(&params);
TIME_MSG("expanding arguments");
if (params.diff_mode && params.window_count == -1)
params.window_count = 0; /* open up to 3 windows */
/* Don't redraw until much later. */
++RedrawingDisabled;
/*
* When listing swap file names, don't do cursor positioning et. al.
*/
if (recoverymode && fname == NULL)
params.want_full_screen = FALSE;
setbuf(stdout, NULL);
/* This message comes before term inits, but after setting "silent_mode"
* when the input is not a tty. */
if (GARGCOUNT > 1 && !silent_mode)
printf(_("%d files to edit\n"), GARGCOUNT);
event_init();
full_screen = true;
t_colors = 256;
check_tty(&params);
/*
* Set the default values for the options that use Rows and Columns.
*/
win_init_size();
/* Set the 'diff' option now, so that it can be checked for in a .vimrc
* file. There is no buffer yet though. */
if (params.diff_mode)
diff_win_options(firstwin, FALSE);
assert(p_ch >= 0 && Rows >= p_ch && Rows - p_ch <= INT_MAX);
cmdline_row = (int)(Rows - p_ch);
msg_row = cmdline_row;
screenalloc(false); /* allocate screen buffers */
set_init_2();
TIME_MSG("inits 2");
msg_scroll = TRUE;
no_wait_return = TRUE;
init_highlight(TRUE, FALSE); /* set the default highlight groups */
TIME_MSG("init highlight");
/* Set the break level after the terminal is initialized. */
debug_break_level = params.use_debug_break_level;
bool reading_input = !params.headless && (params.input_isatty
|| params.output_isatty || params.err_isatty);
if (reading_input) {
// One of the startup commands (arguments, sourced scripts or plugins) may
// prompt the user, so start reading from a tty now.
int fd = fileno(stdin);
if (!params.input_isatty || params.edit_type == EDIT_STDIN) {
// Use stderr or stdout since stdin is not a tty and/or could be used to
// read the "-" file (eg: cat file | nvim -)
fd = params.err_isatty ? fileno(stderr) : fileno(stdout);
}
input_start(fd);
}
// open terminals when opening files that start with term://
do_cmdline_cmd("autocmd BufReadCmd term://* "
":call termopen( "
// Capture the command string
"matchstr(expand(\"<amatch>\"), "
"'\\c\\mterm://\\%(.\\{-}//\\%(\\d\\+:\\)\\?\\)\\?\\zs.*'), "
// capture the working directory
"{'cwd': get(matchlist(expand(\"<amatch>\"), "
"'\\c\\mterm://\\(.\\{-}\\)//'), 1, '')})");
/* Execute --cmd arguments. */
exe_pre_commands(&params);
/* Source startup scripts. */
source_startup_scripts(&params);
/*
* Read all the plugin files.
* Only when compiled with +eval, since most plugins need it.
*/
load_plugins();
/* Decide about window layout for diff mode after reading vimrc. */
set_window_layout(&params);
/*
* Recovery mode without a file name: List swap files.
* This uses the 'dir' option, therefore it must be after the
* initializations.
*/
if (recoverymode && fname == NULL) {
recover_names(NULL, TRUE, 0, NULL);
mch_exit(0);
}
/*
* Set a few option defaults after reading .vimrc files:
* 'title' and 'icon', Unix: 'shellpipe' and 'shellredir'.
*/
set_init_3();
TIME_MSG("inits 3");
/*
* "-n" argument: Disable swap file by setting 'updatecount' to 0.
* Note that this overrides anything from a vimrc file.
*/
if (params.no_swap_file)
p_uc = 0;
if (curwin->w_p_rl && p_altkeymap) {
p_hkmap = FALSE; /* Reset the Hebrew keymap mode */
curwin->w_p_arab = FALSE; /* Reset the Arabic keymap mode */
p_fkmap = TRUE; /* Set the Farsi keymap mode */
}
/*
* Read in registers, history etc, but not marks, from the viminfo file.
* This is where v:oldfiles gets filled.
*/
if (*p_viminfo != NUL) {
read_viminfo(NULL, VIF_WANT_INFO | VIF_GET_OLDFILES);
TIME_MSG("reading viminfo");
}
/* It's better to make v:oldfiles an empty list than NULL. */
if (get_vim_var_list(VV_OLDFILES) == NULL)
set_vim_var_list(VV_OLDFILES, list_alloc());
/*
* "-q errorfile": Load the error file now.
* If the error file can't be read, exit before doing anything else.
*/
handle_quickfix(&params);
/*
* Start putting things on the screen.
* Scroll screen down before drawing over it
* Clear screen now, so file message will not be cleared.
*/
starting = NO_BUFFERS;
no_wait_return = FALSE;
if (!exmode_active)
msg_scroll = FALSE;
/*
* If "-" argument given: Read file from stdin.
* Do this before starting Raw mode, because it may change things that the
* writing end of the pipe doesn't like, e.g., in case stdin and stderr
* are the same terminal: "cat | vim -".
* Using autocommands here may cause trouble...
*/
if (params.edit_type == EDIT_STDIN && !recoverymode)
read_stdin();
if (reading_input && (need_wait_return || msg_didany)) {
// Since at this point there's no UI instance running yet, error messages
// would have been printed to stdout. Before starting (which can result in
// a alternate screen buffer being shown) we need confirmation that the
// user has seen the messages and that is done with a call to wait_return.
TIME_MSG("waiting for return");
wait_return(TRUE);
}
if (!params.headless) {
// Stop reading from input stream, the UI layer will take over now.
input_stop();
ui_builtin_start();
}
setmouse(); // may start using the mouse
ui_reset_scroll_region(); // In case Rows changed
// Don't clear the screen when starting in Ex mode, unless using the GUI.
if (exmode_active)
must_redraw = CLEAR;
else {
screenclear(); /* clear screen */
TIME_MSG("clearing screen");
}
no_wait_return = TRUE;
/*
* Create the requested number of windows and edit buffers in them.
* Also does recovery if "recoverymode" set.
*/
create_windows(&params);
TIME_MSG("opening buffers");
/* clear v:swapcommand */
set_vim_var_string(VV_SWAPCOMMAND, NULL, -1);
/* Ex starts at last line of the file */
if (exmode_active)
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
apply_autocmds(EVENT_BUFENTER, NULL, NULL, FALSE, curbuf);
TIME_MSG("BufEnter autocommands");
setpcmark();
/*
* When started with "-q errorfile" jump to first error now.
*/
if (params.edit_type == EDIT_QF) {
qf_jump(NULL, 0, 0, FALSE);
TIME_MSG("jump to first error");
}
/*
* If opened more than one window, start editing files in the other
* windows.
*/
edit_buffers(&params);
if (params.diff_mode) {
/* set options in each window for "nvim -d". */
FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
diff_win_options(wp, TRUE);
}
}
/*
* Shorten any of the filenames, but only when absolute.
*/
shorten_fnames(FALSE);
/*
* Need to jump to the tag before executing the '-c command'.
* Makes "vim -c '/return' -t main" work.
*/
handle_tag(params.tagname);
/* Execute any "+", "-c" and "-S" arguments. */
if (params.n_commands > 0)
exe_commands(&params);
RedrawingDisabled = 0;
redraw_all_later(NOT_VALID);
no_wait_return = FALSE;
starting = 0;
/* start in insert mode */
if (p_im)
need_start_insertmode = TRUE;
apply_autocmds(EVENT_VIMENTER, NULL, NULL, FALSE, curbuf);
TIME_MSG("VimEnter autocommands");
/* When a startup script or session file setup for diff'ing and
* scrollbind, sync the scrollbind now. */
if (curwin->w_p_diff && curwin->w_p_scb) {
update_topline();
check_scrollbind((linenr_T)0, 0L);
TIME_MSG("diff scrollbinding");
}
/* If ":startinsert" command used, stuff a dummy command to be able to
* call normal_cmd(), which will then start Insert mode. */
if (restart_edit != 0)
stuffcharReadbuff(K_NOP);
TIME_MSG("before starting main loop");
/*
* Call the main command loop. This never returns.
*/
main_loop(FALSE, FALSE);
return 0;
}
/*
* Main loop: Execute Normal mode commands until exiting Vim.
* Also used to handle commands in the command-line window, until the window
* is closed.
* Also used to handle ":visual" command after ":global": execute Normal mode
* commands, return when entering Ex mode. "noexmode" is TRUE then.
*/
void
main_loop (
int cmdwin, /* TRUE when working in the command-line window */
int noexmode /* TRUE when return on entering Ex mode */
)
{
oparg_T oa; /* operator arguments */
int previous_got_int = FALSE; /* "got_int" was TRUE */
linenr_T conceal_old_cursor_line = 0;
linenr_T conceal_new_cursor_line = 0;
int conceal_update_lines = FALSE;
ILOG("Starting Neovim main loop.");
clear_oparg(&oa);
while (!cmdwin
|| cmdwin_result == 0
) {
if (stuff_empty()) {
did_check_timestamps = FALSE;
if (need_check_timestamps)
check_timestamps(FALSE);
if (need_wait_return) /* if wait_return still needed ... */
wait_return(FALSE); /* ... call it now */
if (need_start_insertmode && goto_im()
&& !VIsual_active
) {
need_start_insertmode = FALSE;
stuffReadbuff((char_u *)"i"); /* start insert mode next */
/* skip the fileinfo message now, because it would be shown
* after insert mode finishes! */
need_fileinfo = FALSE;
}
}
/* Reset "got_int" now that we got back to the main loop. Except when
* inside a ":g/pat/cmd" command, then the "got_int" needs to abort
* the ":g" command.
* For ":g/pat/vi" we reset "got_int" when used once. When used
* a second time we go back to Ex mode and abort the ":g" command. */
if (got_int) {
if (noexmode && global_busy && !exmode_active && previous_got_int) {
/* Typed two CTRL-C in a row: go back to ex mode as if "Q" was
* used and keep "got_int" set, so that it aborts ":g". */
exmode_active = EXMODE_NORMAL;
State = NORMAL;
} else if (!global_busy || !exmode_active) {
if (!quit_more)
(void)vgetc(); /* flush all buffers */
got_int = FALSE;
}
previous_got_int = TRUE;
} else
previous_got_int = FALSE;
if (!exmode_active)
msg_scroll = FALSE;
quit_more = FALSE;
/*
* If skip redraw is set (for ":" in wait_return()), don't redraw now.
* If there is nothing in the stuff_buffer or do_redraw is TRUE,
* update cursor and redraw.
*/
if (skip_redraw || exmode_active)
skip_redraw = FALSE;
else if (do_redraw || stuff_empty()) {
/* Trigger CursorMoved if the cursor moved. */
if (!finish_op && (
has_cursormoved()
||
curwin->w_p_cole > 0
)
&& !equalpos(last_cursormoved, curwin->w_cursor)) {
if (has_cursormoved())
apply_autocmds(EVENT_CURSORMOVED, NULL, NULL,
FALSE, curbuf);
if (curwin->w_p_cole > 0) {
conceal_old_cursor_line = last_cursormoved.lnum;
conceal_new_cursor_line = curwin->w_cursor.lnum;
conceal_update_lines = TRUE;
}
last_cursormoved = curwin->w_cursor;
}
/* Trigger TextChanged if b_changedtick differs. */
if (!finish_op && has_textchanged()
&& last_changedtick != curbuf->b_changedtick) {
if (last_changedtick_buf == curbuf)
apply_autocmds(EVENT_TEXTCHANGED, NULL, NULL,
FALSE, curbuf);
last_changedtick_buf = curbuf;
last_changedtick = curbuf->b_changedtick;
}
/* Scroll-binding for diff mode may have been postponed until
* here. Avoids doing it for every change. */
if (diff_need_scrollbind) {
check_scrollbind((linenr_T)0, 0L);
diff_need_scrollbind = FALSE;
}
/* Include a closed fold completely in the Visual area. */
foldAdjustVisual();
/*
* When 'foldclose' is set, apply 'foldlevel' to folds that don't
* contain the cursor.
* When 'foldopen' is "all", open the fold(s) under the cursor.
* This may mark the window for redrawing.
*/
if (hasAnyFolding(curwin) && !char_avail()) {
foldCheckClose();
if (fdo_flags & FDO_ALL)
foldOpenCursor();
}
/*
* Before redrawing, make sure w_topline is correct, and w_leftcol
* if lines don't wrap, and w_skipcol if lines wrap.
*/
update_topline();
validate_cursor();
if (VIsual_active)
update_curbuf(INVERTED); /* update inverted part */
else if (must_redraw)
update_screen(0);
else if (redraw_cmdline || clear_cmdline)
showmode();
redraw_statuslines();
if (need_maketitle)
maketitle();
/* display message after redraw */
if (keep_msg != NULL) {
char_u *p;
// msg_attr_keep() will set keep_msg to NULL, must free the string
// here. Don't reset keep_msg, msg_attr_keep() uses it to check for
// duplicates.
p = keep_msg;
msg_attr(p, keep_msg_attr);
xfree(p);
}
if (need_fileinfo) { /* show file info after redraw */
fileinfo(FALSE, TRUE, FALSE);
need_fileinfo = FALSE;
}
emsg_on_display = FALSE; /* can delete error message now */
did_emsg = FALSE;
msg_didany = FALSE; /* reset lines_left in msg_start() */
may_clear_sb_text(); /* clear scroll-back text on next msg */
showruler(FALSE);
if (conceal_update_lines
&& (conceal_old_cursor_line != conceal_new_cursor_line
|| conceal_cursor_line(curwin)
|| need_cursor_line_redraw)) {
if (conceal_old_cursor_line != conceal_new_cursor_line
&& conceal_old_cursor_line
<= curbuf->b_ml.ml_line_count)
update_single_line(curwin, conceal_old_cursor_line);
update_single_line(curwin, conceal_new_cursor_line);
curwin->w_valid &= ~VALID_CROW;
}
setcursor();
do_redraw = FALSE;
/* Now that we have drawn the first screen all the startup stuff
* has been done, close any file for startup messages. */
if (time_fd != NULL) {
TIME_MSG("first screen update");
TIME_MSG("--- NVIM STARTED ---");
fclose(time_fd);
time_fd = NULL;
}
}
/*
* Update w_curswant if w_set_curswant has been set.
* Postponed until here to avoid computing w_virtcol too often.
*/
update_curswant();
/*
* May perform garbage collection when waiting for a character, but
* only at the very toplevel. Otherwise we may be using a List or
* Dict internally somewhere.
* "may_garbage_collect" is reset in vgetc() which is invoked through
* do_exmode() and normal_cmd().
*/
may_garbage_collect = (!cmdwin && !noexmode);
/*
* If we're invoked as ex, do a round of ex commands.
* Otherwise, get and execute a normal mode command.
*/
if (exmode_active) {
if (noexmode) /* End of ":global/path/visual" commands */
return;
do_exmode(exmode_active == EXMODE_VIM);
} else
normal_cmd(&oa, TRUE);
}
}
/* Exit properly */
void getout(int exitval)
{
tabpage_T *tp, *next_tp;
exiting = TRUE;
/* When running in Ex mode an error causes us to exit with a non-zero exit
* code. POSIX requires this, although it's not 100% clear from the
* standard. */
if (exmode_active)
exitval += ex_exitval;
/* Position the cursor on the last screen line, below all the text */
ui_cursor_goto((int)Rows - 1, 0);
/* Optionally print hashtable efficiency. */
hash_debug_results();
if (get_vim_var_nr(VV_DYING) <= 1) {
/* Trigger BufWinLeave for all windows, but only once per buffer. */
for (tp = first_tabpage; tp != NULL; tp = next_tp) {
next_tp = tp->tp_next;
FOR_ALL_WINDOWS_IN_TAB(wp, tp) {
if (wp->w_buffer == NULL) {
/* Autocmd must have close the buffer already, skip. */
continue;
}
buf_T *buf = wp->w_buffer;
if (buf->b_changedtick != -1) {
apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname,
buf->b_fname, FALSE, buf);
buf->b_changedtick = -1; /* note that we did it already */
/* start all over, autocommands may mess up the lists */
next_tp = first_tabpage;
break;
}
}
}
/* Trigger BufUnload for buffers that are loaded */
FOR_ALL_BUFFERS(buf) {
if (buf->b_ml.ml_mfp != NULL) {
apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname,
FALSE, buf);
if (!buf_valid(buf)) /* autocmd may delete the buffer */
break;
}
}
apply_autocmds(EVENT_VIMLEAVEPRE, NULL, NULL, FALSE, curbuf);
}
if (p_viminfo && *p_viminfo != NUL)
/* Write out the registers, history, marks etc, to the viminfo file */
write_viminfo(NULL, FALSE);
if (get_vim_var_nr(VV_DYING) <= 1)
apply_autocmds(EVENT_VIMLEAVE, NULL, NULL, FALSE, curbuf);
profile_dump();
if (did_emsg
) {
/* give the user a chance to read the (error) message */
no_wait_return = FALSE;
wait_return(FALSE);
}
/* Position the cursor again, the autocommands may have moved it */
ui_cursor_goto((int)Rows - 1, 0);
#if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
iconv_end();
#endif
cs_end();
if (garbage_collect_at_exit)
garbage_collect();
mch_exit(exitval);
}
/// Gets the integer value of a numeric command line argument if given,
/// such as '-o10'.
///
/// @param[in] p pointer to argument
/// @param[in, out] idx pointer to index in argument, is incremented
/// @param[in] def default value
///
/// @return def unmodified if:
/// - argument isn't given
/// - argument is non-numeric
///
/// @return argument's numeric value otherwise
static int get_number_arg(const char *p, int *idx, int def)
{
if (ascii_isdigit(p[*idx])) {
def = atoi(&(p[*idx]));
while (ascii_isdigit(p[*idx])) {
*idx = *idx + 1;
}
}
return def;
}
#if defined(HAVE_LOCALE_H)
/*
* Setup to use the current locale (for ctype() and many other things).
*/
static void init_locale(void)
{
setlocale(LC_ALL, "");
# ifdef LC_NUMERIC
/* Make sure strtod() uses a decimal point, not a comma. */
setlocale(LC_NUMERIC, "C");
# endif
{
char_u *p;
/* expand_env() doesn't work yet, because chartab[] is not initialized
* yet, call vim_getenv() directly */
p = (char_u *)vim_getenv("VIMRUNTIME");
if (p != NULL && *p != NUL) {
vim_snprintf((char *)NameBuff, MAXPATHL, "%s/lang", p);
bindtextdomain(VIMPACKAGE, (char *)NameBuff);
}
xfree(p);
textdomain(VIMPACKAGE);
}
TIME_MSG("locale set");
}
#endif
/*
* Scan the command line arguments.
*/
static void command_line_scan(mparm_T *parmp)
{
int argc = parmp->argc;
char **argv = parmp->argv;
int argv_idx; /* index in argv[n][] */
int had_minmin = FALSE; /* found "--" argument */
int want_argument; /* option argument with argument */
int c;
char_u *p = NULL;
long n;
--argc;
++argv;
argv_idx = 1; /* active option letter is argv[0][argv_idx] */
while (argc > 0) {
/*
* "+" or "+{number}" or "+/{pat}" or "+{command}" argument.
*/
if (argv[0][0] == '+' && !had_minmin) {
if (parmp->n_commands >= MAX_ARG_CMDS)
mainerr(err_extra_cmd, NULL);
argv_idx = -1; /* skip to next argument */
if (argv[0][1] == NUL)
parmp->commands[parmp->n_commands++] = "$";
else
parmp->commands[parmp->n_commands++] = &(argv[0][1]);
}
/*
* Optional argument.
*/
else if (argv[0][0] == '-' && !had_minmin) {
want_argument = FALSE;
c = argv[0][argv_idx++];
switch (c) {
case NUL: /* "vim -" read from stdin */
if (exmode_active) {
// "ex -" silent mode
silent_mode = TRUE;
} else {
if (parmp->edit_type != EDIT_NONE) {
mainerr(err_too_many_args, argv[0]);
}
parmp->edit_type = EDIT_STDIN;
}
argv_idx = -1; /* skip to next argument */
break;
case '-': /* "--" don't take any more option arguments */
/* "--help" give help message */
/* "--version" give version message */
/* "--literal" take files literally */
/* "--noplugin[s]" skip plugins */
/* "--cmd <cmd>" execute cmd before vimrc */
if (STRICMP(argv[0] + argv_idx, "help") == 0) {
usage();
mch_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "version") == 0) {
version();
mch_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "api-info") == 0) {
msgpack_sbuffer* b = msgpack_sbuffer_new();
msgpack_packer* p = msgpack_packer_new(b, msgpack_sbuffer_write);
Object md = DICTIONARY_OBJ(api_metadata());
msgpack_rpc_from_object(md, p);
for (size_t i = 0; i < b->size; i++) {
putchar(b->data[i]);
}
mch_exit(0);
} else if (STRICMP(argv[0] + argv_idx, "headless") == 0) {
parmp->headless = true;
} else if (STRICMP(argv[0] + argv_idx, "embed") == 0) {
embedded_mode = true;
parmp->headless = true;
} else if (STRNICMP(argv[0] + argv_idx, "literal", 7) == 0) {
#if !defined(UNIX)
parmp->literal = TRUE;
#endif
} else if (STRNICMP(argv[0] + argv_idx, "noplugin", 8) == 0)
p_lpl = FALSE;
else if (STRNICMP(argv[0] + argv_idx, "cmd", 3) == 0) {
want_argument = TRUE;
argv_idx += 3;
} else if (STRNICMP(argv[0] + argv_idx, "startuptime", 11) == 0) {
want_argument = TRUE;
argv_idx += 11;
} else {
if (argv[0][argv_idx])
mainerr(err_opt_unknown, argv[0]);
had_minmin = TRUE;
}
if (!want_argument)
argv_idx = -1; /* skip to next argument */
break;
case 'A': /* "-A" start in Arabic mode */
set_option_value((char_u *)"arabic", 1L, NULL, 0);
break;
case 'b': /* "-b" binary mode */
/* Needs to be effective before expanding file names, because
* for Win32 this makes us edit a shortcut file itself,
* instead of the file it links to. */
set_options_bin(curbuf->b_p_bin, 1, 0);
curbuf->b_p_bin = 1; /* binary file I/O */
break;
case 'e': /* "-e" Ex mode */
exmode_active = EXMODE_NORMAL;
break;
case 'E': /* "-E" Improved Ex mode */
exmode_active = EXMODE_VIM;
break;
case 'f': /* "-f" GUI: run in foreground. */
break;
case 'g': /* "-g" start GUI */
main_start_gui();
break;
case 'F': /* "-F" start in Farsi mode: rl + fkmap set */
p_fkmap = TRUE;
set_option_value((char_u *)"rl", 1L, NULL, 0);
break;
case 'h': /* "-h" give help message */
usage();
mch_exit(0);
case 'H': /* "-H" start in Hebrew mode: rl + hkmap set */
p_hkmap = TRUE;
set_option_value((char_u *)"rl", 1L, NULL, 0);
break;
case 'l': /* "-l" lisp mode, 'lisp' and 'showmatch' on */
set_option_value((char_u *)"lisp", 1L, NULL, 0);
p_sm = TRUE;
break;
case 'M': /* "-M" no changes or writing of files */
reset_modifiable();
/* FALLTHROUGH */
case 'm': /* "-m" no writing of files */
p_write = FALSE;
break;
case 'N': /* "-N" Nocompatible */
/* No-op */
break;
case 'n': /* "-n" no swap file */
parmp->no_swap_file = TRUE;
break;
case 'p': /* "-p[N]" open N tab pages */
#ifdef TARGET_API_MAC_OSX
/* For some reason on MacOS X, an argument like:
-psn_0_10223617 is passed in when invoke from Finder
or with the 'open' command */
if (argv[0][argv_idx] == 's') {
argv_idx = -1; /* bypass full -psn */
main_start_gui();
break;
}
#endif
/* default is 0: open window for each file */
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_TABS;
break;
case 'o': /* "-o[N]" open N horizontal split windows */
/* default is 0: open window for each file */
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_HOR;
break;
case 'O': /* "-O[N]" open N vertical split windows */
/* default is 0: open window for each file */
parmp->window_count = get_number_arg(argv[0], &argv_idx, 0);
parmp->window_layout = WIN_VER;
break;
case 'q': /* "-q" QuickFix mode */
if (parmp->edit_type != EDIT_NONE)
mainerr(err_too_many_args, argv[0]);
parmp->edit_type = EDIT_QF;
if (argv[0][argv_idx]) { /* "-q{errorfile}" */
parmp->use_ef = (char_u *)argv[0] + argv_idx;
argv_idx = -1;
} else if (argc > 1) /* "-q {errorfile}" */
want_argument = TRUE;
break;
case 'R': /* "-R" readonly mode */
readonlymode = TRUE;
curbuf->b_p_ro = TRUE;
p_uc = 10000; /* don't update very often */
break;
case 'r': /* "-r" recovery mode */
case 'L': /* "-L" recovery mode */
recoverymode = 1;
break;
case 's':
if (exmode_active) /* "-s" silent (batch) mode */
silent_mode = TRUE;
else /* "-s {scriptin}" read from script file */
want_argument = TRUE;
break;
case 't': /* "-t {tag}" or "-t{tag}" jump to tag */
if (parmp->edit_type != EDIT_NONE)
mainerr(err_too_many_args, argv[0]);
parmp->edit_type = EDIT_TAG;
if (argv[0][argv_idx]) { /* "-t{tag}" */
parmp->tagname = (char_u *)argv[0] + argv_idx;
argv_idx = -1;
} else /* "-t {tag}" */
want_argument = TRUE;
break;
case 'D': /* "-D" Debugging */
parmp->use_debug_break_level = 9999;
break;
case 'd': /* "-d" 'diff' */
parmp->diff_mode = TRUE;
break;
case 'v':
version();
mch_exit(0);
case 'V': /* "-V{N}" Verbose level */
/* default is 10: a little bit verbose */
p_verbose = get_number_arg(argv[0], &argv_idx, 10);
if (argv[0][argv_idx] != NUL) {
set_option_value((char_u *)"verbosefile", 0L,
(char_u *)argv[0] + argv_idx, 0);
argv_idx = (int)STRLEN(argv[0]);
}
break;
case 'w': /* "-w{number}" set window height */
/* "-w {scriptout}" write to script */
if (ascii_isdigit(((char_u *)argv[0])[argv_idx])) {
n = get_number_arg(argv[0], &argv_idx, 10);
set_option_value((char_u *)"window", n, NULL, 0);
break;
}
want_argument = TRUE;
break;
case 'X': /* "-X" don't connect to X server */
break;
case 'Z': /* "-Z" restricted mode */
restricted = TRUE;
break;
case 'c': /* "-c{command}" or "-c {command}" execute
command */
if (argv[0][argv_idx] != NUL) {
if (parmp->n_commands >= MAX_ARG_CMDS)
mainerr(err_extra_cmd, NULL);
parmp->commands[parmp->n_commands++] = argv[0]
+ argv_idx;
argv_idx = -1;
break;
}
/*FALLTHROUGH*/
case 'S': /* "-S {file}" execute Vim script */
case 'i': /* "-i {viminfo}" use for viminfo */
case 'u': /* "-u {vimrc}" vim inits file */
case 'U': /* "-U {gvimrc}" gvim inits file */
case 'W': /* "-W {scriptout}" overwrite */
want_argument = TRUE;
break;
default:
mainerr(err_opt_unknown, argv[0]);
}
/*
* Handle option arguments with argument.
*/
if (want_argument) {
/*
* Check for garbage immediately after the option letter.
*/
if (argv[0][argv_idx] != NUL)
mainerr(err_opt_garbage, argv[0]);
--argc;
if (argc < 1 && c != 'S') /* -S has an optional argument */
mainerr(err_arg_missing, argv[0]);
++argv;
argv_idx = -1;
switch (c) {
case 'c': /* "-c {command}" execute command */
case 'S': /* "-S {file}" execute Vim script */
if (parmp->n_commands >= MAX_ARG_CMDS)
mainerr(err_extra_cmd, NULL);
if (c == 'S') {
char *a;
if (argc < 1)
/* "-S" without argument: use default session file
* name. */
a = SESSION_FILE;
else if (argv[0][0] == '-') {
/* "-S" followed by another option: use default
* session file name. */
a = SESSION_FILE;
++argc;
--argv;
} else {
a = argv[0];
}
char *s = xmalloc(STRLEN(a) + 4);
sprintf(s, "so %s", a);
parmp->cmds_tofree[parmp->n_commands] = TRUE;
parmp->commands[parmp->n_commands++] = s;
} else {
parmp->commands[parmp->n_commands++] = argv[0];
}
break;
case '-':
if (argv[-1][2] == 'c') {
/* "--cmd {command}" execute command */
if (parmp->n_pre_commands >= MAX_ARG_CMDS)
mainerr(err_extra_cmd, NULL);
parmp->pre_commands[parmp->n_pre_commands++] = argv[0];
}
/* "--startuptime <file>" already handled */
break;
case 'q': /* "-q {errorfile}" QuickFix mode */
parmp->use_ef = (char_u *)argv[0];
break;
case 'i': /* "-i {viminfo}" use for viminfo */
use_viminfo = (char_u *)argv[0];
break;
case 's': /* "-s {scriptin}" read from script file */
if (scriptin[0] != NULL) {
scripterror:
mch_errmsg(_("Attempt to open script file again: \""));
mch_errmsg(argv[-1]);
mch_errmsg(" ");
mch_errmsg(argv[0]);
mch_errmsg("\"\n");
mch_exit(2);
}
if ((scriptin[0] = mch_fopen(argv[0], READBIN)) == NULL) {
mch_errmsg(_("Cannot open for reading: \""));
mch_errmsg(argv[0]);
mch_errmsg("\"\n");
mch_exit(2);
}
save_typebuf();
break;
case 't': /* "-t {tag}" */
parmp->tagname = (char_u *)argv[0];
break;
case 'u': /* "-u {vimrc}" vim inits file */
parmp->use_vimrc = argv[0];
break;
case 'U': /* "-U {gvimrc}" gvim inits file */
break;
case 'w': /* "-w {nr}" 'window' value */
/* "-w {scriptout}" append to script file */
if (ascii_isdigit(*((char_u *)argv[0]))) {
argv_idx = 0;
n = get_number_arg(argv[0], &argv_idx, 10);
set_option_value((char_u *)"window", n, NULL, 0);
argv_idx = -1;
break;
}
/*FALLTHROUGH*/
case 'W': /* "-W {scriptout}" overwrite script file */
if (scriptout != NULL)
goto scripterror;
if ((scriptout = mch_fopen(argv[0],
c == 'w' ? APPENDBIN : WRITEBIN)) == NULL) {
mch_errmsg(_("Cannot open for script output: \""));
mch_errmsg(argv[0]);
mch_errmsg("\"\n");
mch_exit(2);
}
break;
}
}
}
/*
* File name argument.
*/
else {
argv_idx = -1; /* skip to next argument */
/* Check for only one type of editing. */
if (parmp->edit_type != EDIT_NONE && parmp->edit_type != EDIT_FILE)
mainerr(err_too_many_args, argv[0]);
parmp->edit_type = EDIT_FILE;
/* Add the file to the global argument list. */
ga_grow(&global_alist.al_ga, 1);
p = vim_strsave((char_u *)argv[0]);
if (parmp->diff_mode && os_isdir(p) && GARGCOUNT > 0
&& !os_isdir(alist_name(&GARGLIST[0]))) {
char_u *r;
r = (char_u *)concat_fnames((char *)p, (char *)path_tail(alist_name(&GARGLIST[0])), TRUE);
xfree(p);
p = r;
}
#ifdef USE_FNAME_CASE
// Make the case of the file name match the actual file.
path_fix_case(p);
#endif
alist_add(&global_alist, p,
#if !defined(UNIX)
parmp->literal ? 2 : 0 /* add buffer nr after exp. */
#else
2 /* add buffer number now and use curbuf */
#endif
);
}
/*
* If there are no more letters after the current "-", go to next
* argument. argv_idx is set to -1 when the current argument is to be
* skipped.
*/
if (argv_idx <= 0 || argv[0][argv_idx] == NUL) {
--argc;
++argv;
argv_idx = 1;
}
}
/* If there is a "+123" or "-c" command, set v:swapcommand to the first
* one. */
if (parmp->n_commands > 0) {
p = xmalloc(STRLEN(parmp->commands[0]) + 3);
sprintf((char *)p, ":%s\r", parmp->commands[0]);
set_vim_var_string(VV_SWAPCOMMAND, p, -1);
xfree(p);
}
TIME_MSG("parsing arguments");
}
/*
* Many variables are in "params" so that we can pass them to invoked
* functions without a lot of arguments. "argc" and "argv" are also
* copied, so that they can be changed. */
static void init_params(mparm_T *paramp, int argc, char **argv)
{
memset(paramp, 0, sizeof(*paramp));
paramp->argc = argc;
paramp->argv = argv;
paramp->headless = false;
paramp->want_full_screen = true;
paramp->use_debug_break_level = -1;
paramp->window_count = -1;
}
/*
* Initialize global startuptime file if "--startuptime" passed as an argument.
*/
static void init_startuptime(mparm_T *paramp)
{
for (int i = 1; i < paramp->argc; i++) {
if (STRICMP(paramp->argv[i], "--startuptime") == 0 && i + 1 < paramp->argc) {
time_fd = mch_fopen(paramp->argv[i + 1], "a");
time_start("--- NVIM STARTING ---");
break;
}
}
starttime = time(NULL);
}
static void check_and_set_isatty(mparm_T *paramp)
{
paramp->input_isatty = os_isatty(fileno(stdin));
paramp->output_isatty = os_isatty(fileno(stdout));
paramp->err_isatty = os_isatty(fileno(stderr));
TIME_MSG("window checked");
}
/*
* Get filename from command line, given that there is one.
*/
static char_u *get_fname(mparm_T *parmp)
{
#if !defined(UNIX)
/*
* Expand wildcards in file names.
*/
if (!parmp->literal) {
/* Temporarily add '(' and ')' to 'isfname'. These are valid
* filename characters but are excluded from 'isfname' to make
* "gf" work on a file name in parenthesis (e.g.: see vim.h). */
do_cmdline_cmd(":set isf+=(,)");
alist_expand(NULL, 0);
do_cmdline_cmd(":set isf&");
}
#endif
return alist_name(&GARGLIST[0]);
}
/*
* Decide about window layout for diff mode after reading vimrc.
*/
static void set_window_layout(mparm_T *paramp)
{
if (paramp->diff_mode && paramp->window_layout == 0) {
if (diffopt_horizontal())
paramp->window_layout = WIN_HOR; /* use horizontal split */
else
paramp->window_layout = WIN_VER; /* use vertical split */
}
}
/*
* Read all the plugin files.
* Only when compiled with +eval, since most plugins need it.
*/
static void load_plugins(void)
{
if (p_lpl) {
source_runtime((char_u *)"plugin/**/*.vim", TRUE);
TIME_MSG("loading plugins");
}
}
/*
* "-q errorfile": Load the error file now.
* If the error file can't be read, exit before doing anything else.
*/
static void handle_quickfix(mparm_T *paramp)
{
if (paramp->edit_type == EDIT_QF) {
if (paramp->use_ef != NULL)
set_string_option_direct((char_u *)"ef", -1,
paramp->use_ef, OPT_FREE, SID_CARG);
vim_snprintf((char *)IObuff, IOSIZE, "cfile %s", p_ef);
if (qf_init(NULL, p_ef, p_efm, TRUE, IObuff) < 0) {
ui_putc('\n');
mch_exit(3);
}
TIME_MSG("reading errorfile");
}
}
/*
* Need to jump to the tag before executing the '-c command'.
* Makes "vim -c '/return' -t main" work.
*/
static void handle_tag(char_u *tagname)
{
if (tagname != NULL) {
swap_exists_did_quit = FALSE;
vim_snprintf((char *)IObuff, IOSIZE, "ta %s", tagname);
do_cmdline_cmd((char *)IObuff);
TIME_MSG("jumping to tag");
/* If the user doesn't want to edit the file then we quit here. */
if (swap_exists_did_quit)
getout(1);
}
}
// Print a warning if stdout is not a terminal.
// When starting in Ex mode and commands come from a file, set Silent mode.
static void check_tty(mparm_T *parmp)
{
if (parmp->headless) {
return;
}
// is active input a terminal?
if (exmode_active) {
if (!parmp->input_isatty) {
silent_mode = true;
}
} else if (parmp->want_full_screen && (!parmp->err_isatty
&& (!parmp->output_isatty || !parmp->input_isatty))) {
if (!parmp->output_isatty) {
mch_errmsg(_("Vim: Warning: Output is not to a terminal\n"));
}
if (!parmp->input_isatty) {
mch_errmsg(_("Vim: Warning: Input is not from a terminal\n"));
}
ui_flush();
if (scriptin[0] == NULL) {
os_delay(2000L, true);
}
TIME_MSG("Warning delay");
}
}
/*
* Read text from stdin.
*/
static void read_stdin(void)
{
int i;
/* When getting the ATTENTION prompt here, use a dialog */
swap_exists_action = SEA_DIALOG;
no_wait_return = TRUE;
i = msg_didany;
set_buflisted(TRUE);
(void)open_buffer(TRUE, NULL, 0); /* create memfile and read file */
no_wait_return = FALSE;
msg_didany = i;
TIME_MSG("reading stdin");
check_swap_exists_action();
}
/*
* Create the requested number of windows and edit buffers in them.
* Also does recovery if "recoverymode" set.
*/
static void create_windows(mparm_T *parmp)
{
int dorewind;
int done = 0;
/*
* Create the number of windows that was requested.
*/
if (parmp->window_count == -1) /* was not set */
parmp->window_count = 1;
if (parmp->window_count == 0)
parmp->window_count = GARGCOUNT;
if (parmp->window_count > 1) {
/* Don't change the windows if there was a command in .vimrc that
* already split some windows */
if (parmp->window_layout == 0)
parmp->window_layout = WIN_HOR;
if (parmp->window_layout == WIN_TABS) {
parmp->window_count = make_tabpages(parmp->window_count);
TIME_MSG("making tab pages");
} else if (firstwin->w_next == NULL) {
parmp->window_count = make_windows(parmp->window_count,
parmp->window_layout == WIN_VER);
TIME_MSG("making windows");
} else
parmp->window_count = win_count();
} else
parmp->window_count = 1;
if (recoverymode) { /* do recover */
msg_scroll = TRUE; /* scroll message up */
ml_recover();
if (curbuf->b_ml.ml_mfp == NULL) /* failed */
getout(1);
do_modelines(0); /* do modelines */
} else {
/*
* Open a buffer for windows that don't have one yet.
* Commands in the .vimrc might have loaded a file or split the window.
* Watch out for autocommands that delete a window.
*/
/*
* Don't execute Win/Buf Enter/Leave autocommands here
*/
++autocmd_no_enter;
++autocmd_no_leave;
dorewind = TRUE;
while (done++ < 1000) {
if (dorewind) {
if (parmp->window_layout == WIN_TABS)
goto_tabpage(1);
else
curwin = firstwin;
} else if (parmp->window_layout == WIN_TABS) {
if (curtab->tp_next == NULL)
break;
goto_tabpage(0);
} else {
if (curwin->w_next == NULL)
break;
curwin = curwin->w_next;
}
dorewind = FALSE;
curbuf = curwin->w_buffer;
if (curbuf->b_ml.ml_mfp == NULL) {
/* Set 'foldlevel' to 'foldlevelstart' if it's not negative. */
if (p_fdls >= 0)
curwin->w_p_fdl = p_fdls;
/* When getting the ATTENTION prompt here, use a dialog */
swap_exists_action = SEA_DIALOG;
set_buflisted(TRUE);
/* create memfile, read file */
(void)open_buffer(FALSE, NULL, 0);
if (swap_exists_action == SEA_QUIT) {
if (got_int || only_one_window()) {
/* abort selected or quit and only one window */
did_emsg = FALSE; /* avoid hit-enter prompt */
getout(1);
}
/* We can't close the window, it would disturb what
* happens next. Clear the file name and set the arg
* index to -1 to delete it later. */
setfname(curbuf, NULL, NULL, FALSE);
curwin->w_arg_idx = -1;
swap_exists_action = SEA_NONE;
} else
handle_swap_exists(NULL);
dorewind = TRUE; /* start again */
}
os_breakcheck();
if (got_int) {
(void)vgetc(); /* only break the file loading, not the rest */
break;
}
}
if (parmp->window_layout == WIN_TABS)
goto_tabpage(1);
else
curwin = firstwin;
curbuf = curwin->w_buffer;
--autocmd_no_enter;
--autocmd_no_leave;
}
}
/*
* If opened more than one window, start editing files in the other
* windows. make_windows() has already opened the windows.
*/
static void edit_buffers(mparm_T *parmp)
{
int arg_idx; /* index in argument list */
int i;
int advance = TRUE;
win_T *win;
/*
* Don't execute Win/Buf Enter/Leave autocommands here
*/
++autocmd_no_enter;
++autocmd_no_leave;
/* When w_arg_idx is -1 remove the window (see create_windows()). */
if (curwin->w_arg_idx == -1) {
win_close(curwin, TRUE);
advance = FALSE;
}
arg_idx = 1;
for (i = 1; i < parmp->window_count; ++i) {
/* When w_arg_idx is -1 remove the window (see create_windows()). */
if (curwin->w_arg_idx == -1) {
++arg_idx;
win_close(curwin, TRUE);
advance = FALSE;
continue;
}
if (advance) {
if (parmp->window_layout == WIN_TABS) {
if (curtab->tp_next == NULL) /* just checking */
break;
goto_tabpage(0);
} else {
if (curwin->w_next == NULL) /* just checking */
break;
win_enter(curwin->w_next, false);
}
}
advance = TRUE;
/* Only open the file if there is no file in this window yet (that can
* happen when .vimrc contains ":sall"). */
if (curbuf == firstwin->w_buffer || curbuf->b_ffname == NULL) {
curwin->w_arg_idx = arg_idx;
/* Edit file from arg list, if there is one. When "Quit" selected
* at the ATTENTION prompt close the window. */
swap_exists_did_quit = FALSE;
(void)do_ecmd(0, arg_idx < GARGCOUNT
? alist_name(&GARGLIST[arg_idx]) : NULL,
NULL, NULL, ECMD_LASTL, ECMD_HIDE, curwin);
if (swap_exists_did_quit) {
/* abort or quit selected */
if (got_int || only_one_window()) {
/* abort selected and only one window */
did_emsg = FALSE; /* avoid hit-enter prompt */
getout(1);
}
win_close(curwin, TRUE);
advance = FALSE;
}
if (arg_idx == GARGCOUNT - 1)
arg_had_last = TRUE;
++arg_idx;
}
os_breakcheck();
if (got_int) {
(void)vgetc(); /* only break the file loading, not the rest */
break;
}
}
if (parmp->window_layout == WIN_TABS)
goto_tabpage(1);
--autocmd_no_enter;
/* make the first window the current window */
win = firstwin;
/* Avoid making a preview window the current window. */
while (win->w_p_pvw) {
win = win->w_next;
if (win == NULL) {
win = firstwin;
break;
}
}
win_enter(win, false);
--autocmd_no_leave;
TIME_MSG("editing files in windows");
if (parmp->window_count > 1 && parmp->window_layout != WIN_TABS)
win_equal(curwin, FALSE, 'b'); /* adjust heights */
}
/*
* Execute the commands from --cmd arguments "cmds[cnt]".
*/
static void exe_pre_commands(mparm_T *parmp)
{
char **cmds = parmp->pre_commands;
int cnt = parmp->n_pre_commands;
int i;
if (cnt > 0) {
curwin->w_cursor.lnum = 0; /* just in case.. */
sourcing_name = (char_u *)_("pre-vimrc command line");
current_SID = SID_CMDARG;
for (i = 0; i < cnt; ++i)
do_cmdline_cmd(cmds[i]);
sourcing_name = NULL;
current_SID = 0;
TIME_MSG("--cmd commands");
}
}
/*
* Execute "+", "-c" and "-S" arguments.
*/
static void exe_commands(mparm_T *parmp)
{
int i;
/*
* We start commands on line 0, make "vim +/pat file" match a
* pattern on line 1. But don't move the cursor when an autocommand
* with g`" was used.
*/
msg_scroll = TRUE;
if (parmp->tagname == NULL && curwin->w_cursor.lnum <= 1)
curwin->w_cursor.lnum = 0;
sourcing_name = (char_u *)"command line";
current_SID = SID_CARG;
for (i = 0; i < parmp->n_commands; ++i) {
do_cmdline_cmd(parmp->commands[i]);
if (parmp->cmds_tofree[i])
xfree(parmp->commands[i]);
}
sourcing_name = NULL;
current_SID = 0;
if (curwin->w_cursor.lnum == 0)
curwin->w_cursor.lnum = 1;
if (!exmode_active)
msg_scroll = FALSE;
/* When started with "-q errorfile" jump to first error again. */
if (parmp->edit_type == EDIT_QF)
qf_jump(NULL, 0, 0, FALSE);
TIME_MSG("executing command arguments");
}
/*
* Source startup scripts.
*/
static void source_startup_scripts(mparm_T *parmp)
{
int i;
/*
* If -u argument given, use only the initializations from that file and
* nothing else.
*/
if (parmp->use_vimrc != NULL) {
if (strcmp(parmp->use_vimrc, "NONE") == 0
|| strcmp(parmp->use_vimrc, "NORC") == 0) {
if (parmp->use_vimrc[2] == 'N')
p_lpl = FALSE; // don't load plugins either
} else {
if (do_source((char_u *)parmp->use_vimrc, FALSE, DOSO_NONE) != OK)
EMSG2(_("E282: Cannot read from \"%s\""), parmp->use_vimrc);
}
} else if (!silent_mode) {
/*
* Get system wide defaults, if the file name is defined.
*/
#ifdef SYS_VIMRC_FILE
(void)do_source((char_u *)SYS_VIMRC_FILE, FALSE, DOSO_NONE);
#endif
/*
* Try to read initialization commands from the following places:
* - environment variable VIMINIT
* - user vimrc file (~/.vimrc)
* - second user vimrc file ($VIM/.vimrc for Dos)
* - environment variable EXINIT
* - user exrc file (~/.exrc)
* - second user exrc file ($VIM/.exrc for Dos)
* The first that exists is used, the rest is ignored.
*/
if (process_env("VIMINIT", true) != OK) {
if (do_source((char_u *)USR_VIMRC_FILE, TRUE, DOSO_VIMRC) == FAIL
#ifdef USR_VIMRC_FILE2
&& do_source((char_u *)USR_VIMRC_FILE2, TRUE,
DOSO_VIMRC) == FAIL
#endif
#ifdef USR_VIMRC_FILE3
&& do_source((char_u *)USR_VIMRC_FILE3, TRUE,
DOSO_VIMRC) == FAIL
#endif
&& process_env("EXINIT", FALSE) == FAIL
&& do_source((char_u *)USR_EXRC_FILE, FALSE, DOSO_NONE) == FAIL) {
#ifdef USR_EXRC_FILE2
(void)do_source((char_u *)USR_EXRC_FILE2, FALSE, DOSO_NONE);
#endif
}
}
/*
* Read initialization commands from ".vimrc" or ".exrc" in current
* directory. This is only done if the 'exrc' option is set.
* Because of security reasons we disallow shell and write commands
* now, except for unix if the file is owned by the user or 'secure'
* option has been reset in environment of global ".exrc" or ".vimrc".
* Only do this if VIMRC_FILE is not the same as USR_VIMRC_FILE or
* SYS_VIMRC_FILE.
*/
if (p_exrc) {
#if defined(UNIX)
/* If ".vimrc" file is not owned by user, set 'secure' mode. */
if (!file_owned(VIMRC_FILE))
#endif
secure = p_secure;
i = FAIL;
if (path_full_compare((char_u *)USR_VIMRC_FILE,
(char_u *)VIMRC_FILE, FALSE) != kEqualFiles
#ifdef USR_VIMRC_FILE2
&& path_full_compare((char_u *)USR_VIMRC_FILE2,
(char_u *)VIMRC_FILE, FALSE) != kEqualFiles
#endif
#ifdef USR_VIMRC_FILE3
&& path_full_compare((char_u *)USR_VIMRC_FILE3,
(char_u *)VIMRC_FILE, FALSE) != kEqualFiles
#endif
#ifdef SYS_VIMRC_FILE
&& path_full_compare((char_u *)SYS_VIMRC_FILE,
(char_u *)VIMRC_FILE, FALSE) != kEqualFiles
#endif
)
i = do_source((char_u *)VIMRC_FILE, TRUE, DOSO_VIMRC);
if (i == FAIL) {
#if defined(UNIX)
/* if ".exrc" is not owned by user set 'secure' mode */
if (!file_owned(EXRC_FILE))
secure = p_secure;
else
secure = 0;
#endif
if ( path_full_compare((char_u *)USR_EXRC_FILE,
(char_u *)EXRC_FILE, FALSE) != kEqualFiles
#ifdef USR_EXRC_FILE2
&& path_full_compare((char_u *)USR_EXRC_FILE2,
(char_u *)EXRC_FILE, FALSE) != kEqualFiles
#endif
)
(void)do_source((char_u *)EXRC_FILE, FALSE, DOSO_NONE);
}
}
if (secure == 2)
need_wait_return = TRUE;
secure = 0;
}
TIME_MSG("sourcing vimrc file(s)");
}
/*
* Setup to start using the GUI. Exit with an error when not available.
*/
static void main_start_gui(void)
{
mch_errmsg(_(e_nogvim));
mch_errmsg("\n");
mch_exit(2);
}
/// Get an environment variable, and execute it as Ex commands.
///
/// @param env environment variable to execute
/// @param is_viminit when true, called for VIMINIT
///
/// @return FAIL if the environment variable was not executed,
/// OK otherwise.
static int process_env(char *env, bool is_viminit)
{
const char *initstr = os_getenv(env);
if (initstr != NULL) {
if (is_viminit) {
vimrc_found(NULL, NULL);
}
char_u *save_sourcing_name = sourcing_name;
linenr_T save_sourcing_lnum = sourcing_lnum;
sourcing_name = (char_u *)env;
sourcing_lnum = 0;
scid_T save_sid = current_SID;
current_SID = SID_ENV;
do_cmdline_cmd((char *)initstr);
sourcing_name = save_sourcing_name;
sourcing_lnum = save_sourcing_lnum;
current_SID = save_sid;;
return OK;
}
return FAIL;
}
#ifdef UNIX
/// Checks if user owns file.
/// Use both uv_fs_stat() and uv_fs_lstat() through os_fileinfo() and
/// os_fileinfo_link() respectively for extra security.
static bool file_owned(const char *fname)
{
uid_t uid = getuid();
FileInfo file_info;
bool file_owned = os_fileinfo(fname, &file_info)
&& file_info.stat.st_uid == uid;
bool link_owned = os_fileinfo_link(fname, &file_info)
&& file_info.stat.st_uid == uid;
return file_owned && link_owned;
}
#endif
/// Prints the following then exits:
/// - An error message `errstr`
/// - A string `str` if not null
///
/// @param errstr string containing an error message
/// @param str string to append to the primary error message, or NULL
static void mainerr(const char *errstr, const char *str)
{
signal_stop(); // kill us with CTRL-C here, if you like
mch_errmsg(argv0);
mch_errmsg(": ");
mch_errmsg(_(errstr));
if (str != NULL) {
mch_errmsg(": \"");
mch_errmsg(str);
mch_errmsg("\"");
}
mch_errmsg(_("\nMore info with \""));
mch_errmsg(argv0);
mch_errmsg(" -h\"\n");
mch_exit(1);
}
/// Prints version information for "nvim -v" or "nvim --version".
static void version(void)
{
info_message = TRUE; // use mch_msg(), not mch_errmsg()
list_version();
msg_putchar('\n');
msg_didout = FALSE;
}
/// Prints help message for "nvim -h" or "nvim --help".
static void usage(void)
{
signal_stop(); // kill us with CTRL-C here, if you like
mch_msg(_("Usage:\n"));
mch_msg(_(" nvim [arguments] [file ...] Edit specified file(s)\n"));
mch_msg(_(" nvim [arguments] - Read text from stdin\n"));
mch_msg(_(" nvim [arguments] -t <tag> Edit file where tag is defined\n"));
mch_msg(_(" nvim [arguments] -q [errorfile] Edit file with first error\n"));
mch_msg(_("\nArguments:\n"));
mch_msg(_(" -- Only file names after this\n"));
#if !defined(UNIX)
mch_msg(_(" --literal Don't expand wildcards\n"));
#endif
mch_msg(_(" -e Ex mode\n"));
mch_msg(_(" -E Improved Ex mode\n"));
mch_msg(_(" -s Silent (batch) mode (only for ex mode)\n"));
mch_msg(_(" -d Diff mode\n"));
mch_msg(_(" -R Read-only mode\n"));
mch_msg(_(" -Z Restricted mode\n"));
mch_msg(_(" -m Modifications (writing files) not allowed\n"));
mch_msg(_(" -M Modifications in text not allowed\n"));
mch_msg(_(" -b Binary mode\n"));
mch_msg(_(" -l Lisp mode\n"));
mch_msg(_(" -A Arabic mode\n"));
mch_msg(_(" -F Farsi mode\n"));
mch_msg(_(" -H Hebrew mode\n"));
mch_msg(_(" -V[N][file] Be verbose [level N][log messages to file]\n"));
mch_msg(_(" -D Debugging mode\n"));
mch_msg(_(" -n No swap file, use memory only\n"));
mch_msg(_(" -r, -L List swap files and exit\n"));
mch_msg(_(" -r <file> Recover crashed session\n"));
mch_msg(_(" -u <nvimrc> Use <nvimrc> instead of the default\n"));
mch_msg(_(" -i <nviminfo> Use <nviminfo> instead of the default\n"));
mch_msg(_(" --noplugin Don't load plugin scripts\n"));
mch_msg(_(" -o[N] Open N windows (default: one for each file)\n"));
mch_msg(_(" -O[N] Like -o but split vertically\n"));
mch_msg(_(" -p[N] Open N tab pages (default: one for each file)\n"));
mch_msg(_(" + Start at end of file\n"));
mch_msg(_(" +<linenum> Start at line <linenum>\n"));
mch_msg(_(" +/<pattern> Start at first occurrence of <pattern>\n"));
mch_msg(_(" --cmd <command> Execute <command> before loading any nvimrc\n"));
mch_msg(_(" -c <command> Execute <command> after loading the first file\n"));
mch_msg(_(" -S <session> Source <session> after loading the first file\n"));
mch_msg(_(" -s <scriptin> Read Normal mode commands from <scriptin>\n"));
mch_msg(_(" -w <scriptout> Append all typed characters to <scriptout>\n"));
mch_msg(_(" -W <scriptout> Write all typed characters to <scriptout>\n"));
mch_msg(_(" --startuptime <file> Write startup timing messages to <file>\n"));
mch_msg(_(" --api-info Dump API metadata serialized to msgpack and exit\n"));
mch_msg(_(" --embed Use stdin/stdout as a msgpack-rpc channel\n"));
mch_msg(_(" --headless Don't start a user interface\n"));
mch_msg(_(" -v, --version Print version information and exit\n"));
mch_msg(_(" -h, --help Print this help message and exit\n"));
}
/*
* Check the result of the ATTENTION dialog:
* When "Quit" selected, exit Vim.
* When "Recover" selected, recover the file.
*/
static void check_swap_exists_action(void)
{
if (swap_exists_action == SEA_QUIT)
getout(1);
handle_swap_exists(NULL);
}
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