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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
commit029f72b1a93430b24b88eb3a72c6114d9f149737 (patch)
tree765d5c2041967f9c6fef195fe343d9234a030e90 /src/ex_docmd.c
parentInitial commit. (diff)
downloadvim-029f72b1a93430b24b88eb3a72c6114d9f149737.tar.xz
vim-029f72b1a93430b24b88eb3a72c6114d9f149737.zip
Adding upstream version 2:9.1.0016.upstream/2%9.1.0016
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/ex_docmd.c')
-rw-r--r--src/ex_docmd.c9965
1 files changed, 9965 insertions, 0 deletions
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
new file mode 100644
index 0000000..c18a910
--- /dev/null
+++ b/src/ex_docmd.c
@@ -0,0 +1,9965 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ * See README.txt for an overview of the Vim source code.
+ */
+
+/*
+ * ex_docmd.c: functions for executing an Ex command line.
+ */
+
+#include "vim.h"
+
+static int quitmore = 0;
+static int ex_pressedreturn = FALSE;
+#ifndef FEAT_PRINTER
+# define ex_hardcopy ex_ni
+#endif
+
+#ifdef FEAT_EVAL
+static char_u *do_one_cmd(char_u **, int, cstack_T *, char_u *(*fgetline)(int, void *, int, getline_opt_T), void *cookie);
+#else
+static char_u *do_one_cmd(char_u **, int, char_u *(*fgetline)(int, void *, int, getline_opt_T), void *cookie);
+static int if_level = 0; // depth in :if
+#endif
+static void append_command(char_u *cmd);
+
+#ifndef FEAT_MENU
+# define ex_emenu ex_ni
+# define ex_menu ex_ni
+# define ex_menutranslate ex_ni
+#endif
+static void ex_autocmd(exarg_T *eap);
+static void ex_doautocmd(exarg_T *eap);
+static void ex_bunload(exarg_T *eap);
+static void ex_buffer(exarg_T *eap);
+static void ex_bmodified(exarg_T *eap);
+static void ex_bnext(exarg_T *eap);
+static void ex_bprevious(exarg_T *eap);
+static void ex_brewind(exarg_T *eap);
+static void ex_blast(exarg_T *eap);
+static char_u *getargcmd(char_u **);
+static int getargopt(exarg_T *eap);
+#ifndef FEAT_QUICKFIX
+# define ex_make ex_ni
+# define ex_cbuffer ex_ni
+# define ex_cc ex_ni
+# define ex_cnext ex_ni
+# define ex_cbelow ex_ni
+# define ex_cfile ex_ni
+# define qf_list ex_ni
+# define qf_age ex_ni
+# define qf_history ex_ni
+# define ex_helpgrep ex_ni
+# define ex_vimgrep ex_ni
+# define ex_cclose ex_ni
+# define ex_copen ex_ni
+# define ex_cwindow ex_ni
+# define ex_cbottom ex_ni
+#endif
+#if !defined(FEAT_QUICKFIX) || !defined(FEAT_EVAL)
+# define ex_cexpr ex_ni
+#endif
+
+static linenr_T default_address(exarg_T *eap);
+static linenr_T get_address(exarg_T *, char_u **, cmd_addr_T addr_type, int skip, int silent, int to_other_file, int address_count);
+static void address_default_all(exarg_T *eap);
+static void get_flags(exarg_T *eap);
+#if !defined(FEAT_PERL) \
+ || !defined(FEAT_PYTHON) || !defined(FEAT_PYTHON3) \
+ || !defined(FEAT_TCL) \
+ || !defined(FEAT_RUBY) \
+ || !defined(FEAT_LUA) \
+ || !defined(FEAT_MZSCHEME)
+# define HAVE_EX_SCRIPT_NI
+static void ex_script_ni(exarg_T *eap);
+#endif
+static char *invalid_range(exarg_T *eap);
+static void correct_range(exarg_T *eap);
+#ifdef FEAT_QUICKFIX
+static char_u *replace_makeprg(exarg_T *eap, char_u *p, char_u **cmdlinep);
+#endif
+static char_u *repl_cmdline(exarg_T *eap, char_u *src, int srclen, char_u *repl, char_u **cmdlinep);
+static void ex_highlight(exarg_T *eap);
+static void ex_colorscheme(exarg_T *eap);
+static void ex_cquit(exarg_T *eap);
+static void ex_quit_all(exarg_T *eap);
+static void ex_close(exarg_T *eap);
+static void ex_win_close(int forceit, win_T *win, tabpage_T *tp);
+static void ex_only(exarg_T *eap);
+static void ex_resize(exarg_T *eap);
+static void ex_stag(exarg_T *eap);
+static void ex_tabclose(exarg_T *eap);
+static void ex_tabonly(exarg_T *eap);
+static void ex_tabnext(exarg_T *eap);
+static void ex_tabmove(exarg_T *eap);
+static void ex_tabs(exarg_T *eap);
+#if defined(FEAT_QUICKFIX)
+static void ex_pclose(exarg_T *eap);
+static void ex_ptag(exarg_T *eap);
+static void ex_pedit(exarg_T *eap);
+#else
+# define ex_pclose ex_ni
+# define ex_ptag ex_ni
+# define ex_pedit ex_ni
+#endif
+static void ex_hide(exarg_T *eap);
+static void ex_exit(exarg_T *eap);
+static void ex_print(exarg_T *eap);
+#ifdef FEAT_BYTEOFF
+static void ex_goto(exarg_T *eap);
+#else
+# define ex_goto ex_ni
+#endif
+static void ex_shell(exarg_T *eap);
+static void ex_preserve(exarg_T *eap);
+static void ex_recover(exarg_T *eap);
+static void ex_mode(exarg_T *eap);
+static void ex_wrongmodifier(exarg_T *eap);
+static void ex_find(exarg_T *eap);
+static void ex_open(exarg_T *eap);
+static void ex_edit(exarg_T *eap);
+#ifndef FEAT_GUI
+# define ex_gui ex_nogui
+static void ex_nogui(exarg_T *eap);
+#endif
+#if defined(FEAT_GUI_MSWIN) && defined(FEAT_MENU) && defined(FEAT_TEAROFF)
+static void ex_tearoff(exarg_T *eap);
+#else
+# define ex_tearoff ex_ni
+#endif
+#if (defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) \
+ || defined(FEAT_TERM_POPUP_MENU)) && defined(FEAT_MENU)
+static void ex_popup(exarg_T *eap);
+#else
+# define ex_popup ex_ni
+#endif
+#ifndef FEAT_GUI_MSWIN
+# define ex_simalt ex_ni
+#endif
+#if !defined(FEAT_GUI_MSWIN) && !defined(FEAT_GUI_GTK) && !defined(FEAT_GUI_MOTIF)
+# define gui_mch_find_dialog ex_ni
+# define gui_mch_replace_dialog ex_ni
+#endif
+#if !defined(FEAT_GUI_GTK)
+# define ex_helpfind ex_ni
+#endif
+#ifndef FEAT_CSCOPE
+# define ex_cscope ex_ni
+# define ex_scscope ex_ni
+# define ex_cstag ex_ni
+#endif
+#ifndef FEAT_SYN_HL
+# define ex_syntax ex_ni
+# define ex_ownsyntax ex_ni
+#endif
+#if !defined(FEAT_SYN_HL) || !defined(FEAT_PROFILE)
+# define ex_syntime ex_ni
+#endif
+#ifndef FEAT_SPELL
+# define ex_spell ex_ni
+# define ex_mkspell ex_ni
+# define ex_spelldump ex_ni
+# define ex_spellinfo ex_ni
+# define ex_spellrepall ex_ni
+#endif
+#ifndef FEAT_PERSISTENT_UNDO
+# define ex_rundo ex_ni
+# define ex_wundo ex_ni
+#endif
+#ifndef FEAT_LUA
+# define ex_lua ex_script_ni
+# define ex_luado ex_ni
+# define ex_luafile ex_ni
+#endif
+#ifndef FEAT_MZSCHEME
+# define ex_mzscheme ex_script_ni
+# define ex_mzfile ex_ni
+#endif
+#ifndef FEAT_PERL
+# define ex_perl ex_script_ni
+# define ex_perldo ex_ni
+#endif
+#ifndef FEAT_PYTHON
+# define ex_python ex_script_ni
+# define ex_pydo ex_ni
+# define ex_pyfile ex_ni
+#endif
+#ifndef FEAT_PYTHON3
+# define ex_py3 ex_script_ni
+# define ex_py3do ex_ni
+# define ex_py3file ex_ni
+#endif
+#if !defined(FEAT_PYTHON) && !defined(FEAT_PYTHON3)
+# define ex_pyx ex_script_ni
+# define ex_pyxdo ex_ni
+# define ex_pyxfile ex_ni
+#endif
+#ifndef FEAT_TCL
+# define ex_tcl ex_script_ni
+# define ex_tcldo ex_ni
+# define ex_tclfile ex_ni
+#endif
+#ifndef FEAT_RUBY
+# define ex_ruby ex_script_ni
+# define ex_rubydo ex_ni
+# define ex_rubyfile ex_ni
+#endif
+#ifndef FEAT_KEYMAP
+# define ex_loadkeymap ex_ni
+#endif
+static void ex_swapname(exarg_T *eap);
+static void ex_syncbind(exarg_T *eap);
+static void ex_read(exarg_T *eap);
+static void ex_pwd(exarg_T *eap);
+static void ex_equal(exarg_T *eap);
+static void ex_sleep(exarg_T *eap);
+static void ex_winsize(exarg_T *eap);
+static void ex_wincmd(exarg_T *eap);
+#if defined(FEAT_GUI) || defined(UNIX) || defined(VMS) || defined(MSWIN)
+static void ex_winpos(exarg_T *eap);
+#else
+# define ex_winpos ex_ni
+#endif
+static void ex_operators(exarg_T *eap);
+static void ex_put(exarg_T *eap);
+static void ex_copymove(exarg_T *eap);
+static void ex_submagic(exarg_T *eap);
+static void ex_join(exarg_T *eap);
+static void ex_at(exarg_T *eap);
+static void ex_bang(exarg_T *eap);
+static void ex_undo(exarg_T *eap);
+#ifdef FEAT_PERSISTENT_UNDO
+static void ex_wundo(exarg_T *eap);
+static void ex_rundo(exarg_T *eap);
+#endif
+static void ex_redo(exarg_T *eap);
+static void ex_later(exarg_T *eap);
+static void ex_redir(exarg_T *eap);
+static void ex_redrawstatus(exarg_T *eap);
+static void ex_redrawtabline(exarg_T *eap);
+static void close_redir(void);
+static void ex_mark(exarg_T *eap);
+static void ex_startinsert(exarg_T *eap);
+static void ex_stopinsert(exarg_T *eap);
+#ifdef FEAT_FIND_ID
+static void ex_checkpath(exarg_T *eap);
+static void ex_findpat(exarg_T *eap);
+#else
+# define ex_findpat ex_ni
+# define ex_checkpath ex_ni
+#endif
+#if defined(FEAT_FIND_ID) && defined(FEAT_QUICKFIX)
+static void ex_psearch(exarg_T *eap);
+#else
+# define ex_psearch ex_ni
+#endif
+static void ex_tag(exarg_T *eap);
+static void ex_tag_cmd(exarg_T *eap, char_u *name);
+#ifndef FEAT_EVAL
+# define ex_block ex_ni
+# define ex_break ex_ni
+# define ex_breakadd ex_ni
+# define ex_breakdel ex_ni
+# define ex_breaklist ex_ni
+# define ex_call ex_ni
+# define ex_catch ex_ni
+# define ex_class ex_ni
+# define ex_compiler ex_ni
+# define ex_continue ex_ni
+# define ex_debug ex_ni
+# define ex_debuggreedy ex_ni
+# define ex_defcompile ex_ni
+# define ex_delfunction ex_ni
+# define ex_disassemble ex_ni
+# define ex_echo ex_ni
+# define ex_echohl ex_ni
+# define ex_else ex_ni
+# define ex_endblock ex_ni
+# define ex_endfunction ex_ni
+# define ex_endif ex_ni
+# define ex_endtry ex_ni
+# define ex_endwhile ex_ni
+# define ex_enum ex_ni
+# define ex_eval ex_ni
+# define ex_execute ex_ni
+# define ex_finally ex_ni
+# define ex_incdec ex_ni
+# define ex_finish ex_ni
+# define ex_function ex_ni
+# define ex_if ex_ni
+# define ex_let ex_ni
+# define ex_var ex_ni
+# define ex_lockvar ex_ni
+# define ex_oldfiles ex_ni
+# define ex_options ex_ni
+# define ex_packadd ex_ni
+# define ex_packloadall ex_ni
+# define ex_return ex_ni
+# define ex_scriptnames ex_ni
+# define ex_throw ex_ni
+# define ex_try ex_ni
+# define ex_type ex_ni
+# define ex_unlet ex_ni
+# define ex_while ex_ni
+# define ex_import ex_ni
+# define ex_export ex_ni
+#endif
+#ifndef FEAT_SESSION
+# define ex_loadview ex_ni
+#endif
+#ifndef FEAT_VIMINFO
+# define ex_viminfo ex_ni
+#endif
+static void ex_behave(exarg_T *eap);
+static void ex_filetype(exarg_T *eap);
+static void ex_setfiletype(exarg_T *eap);
+#ifndef FEAT_DIFF
+# define ex_diffoff ex_ni
+# define ex_diffpatch ex_ni
+# define ex_diffgetput ex_ni
+# define ex_diffsplit ex_ni
+# define ex_diffthis ex_ni
+# define ex_diffupdate ex_ni
+#endif
+static void ex_digraphs(exarg_T *eap);
+#ifdef FEAT_SEARCH_EXTRA
+static void ex_nohlsearch(exarg_T *eap);
+#else
+# define ex_nohlsearch ex_ni
+# define ex_match ex_ni
+#endif
+#ifdef FEAT_CRYPT
+static void ex_X(exarg_T *eap);
+#else
+# define ex_X ex_ni
+#endif
+#ifdef FEAT_FOLDING
+static void ex_fold(exarg_T *eap);
+static void ex_foldopen(exarg_T *eap);
+static void ex_folddo(exarg_T *eap);
+#else
+# define ex_fold ex_ni
+# define ex_foldopen ex_ni
+# define ex_folddo ex_ni
+#endif
+#if !(defined(HAVE_LOCALE_H) || defined(X_LOCALE))
+# define ex_language ex_ni
+#endif
+#ifndef FEAT_SIGNS
+# define ex_sign ex_ni
+#endif
+#ifndef FEAT_NETBEANS_INTG
+# define ex_nbclose ex_ni
+# define ex_nbkey ex_ni
+# define ex_nbstart ex_ni
+#endif
+
+#ifndef FEAT_PROFILE
+# define ex_profile ex_ni
+#endif
+#ifndef FEAT_TERMINAL
+# define ex_terminal ex_ni
+#endif
+#if !defined(FEAT_X11) || !defined(FEAT_XCLIPBOARD)
+# define ex_xrestore ex_ni
+#endif
+#if !defined(FEAT_PROP_POPUP)
+# define ex_popupclear ex_ni
+#endif
+
+/*
+ * Declare cmdnames[].
+ */
+#define DO_DECLARE_EXCMD
+#include "ex_cmds.h"
+#include "ex_cmdidxs.h"
+
+static char_u dollar_command[2] = {'$', 0};
+
+
+#ifdef FEAT_EVAL
+// Struct for storing a line inside a while/for loop
+typedef struct
+{
+ char_u *line; // command line
+ linenr_T lnum; // sourcing_lnum of the line
+} wcmd_T;
+
+/*
+ * Structure used to store info for line position in a while or for loop.
+ * This is required, because do_one_cmd() may invoke ex_function(), which
+ * reads more lines that may come from the while/for loop.
+ */
+struct loop_cookie
+{
+ garray_T *lines_gap; // growarray with line info
+ int current_line; // last read line from growarray
+ int repeating; // TRUE when looping a second time
+ // When "repeating" is FALSE use "getline" and "cookie" to get lines
+ char_u *(*lc_getline)(int, void *, int, getline_opt_T);
+ void *cookie;
+};
+
+static char_u *get_loop_line(int c, void *cookie, int indent, getline_opt_T options);
+static int store_loop_line(garray_T *gap, char_u *line);
+static void free_cmdlines(garray_T *gap);
+
+// Struct to save a few things while debugging. Used in do_cmdline() only.
+struct dbg_stuff
+{
+ int trylevel;
+ int force_abort;
+ except_T *caught_stack;
+ char_u *vv_exception;
+ char_u *vv_throwpoint;
+ int did_emsg;
+ int got_int;
+ int did_throw;
+ int need_rethrow;
+ int check_cstack;
+ except_T *current_exception;
+};
+
+ static void
+save_dbg_stuff(struct dbg_stuff *dsp)
+{
+ dsp->trylevel = trylevel; trylevel = 0;
+ dsp->force_abort = force_abort; force_abort = FALSE;
+ dsp->caught_stack = caught_stack; caught_stack = NULL;
+ dsp->vv_exception = v_exception(NULL);
+ dsp->vv_throwpoint = v_throwpoint(NULL);
+
+ // Necessary for debugging an inactive ":catch", ":finally", ":endtry"
+ dsp->did_emsg = did_emsg; did_emsg = FALSE;
+ dsp->got_int = got_int; got_int = FALSE;
+ dsp->did_throw = did_throw; did_throw = FALSE;
+ dsp->need_rethrow = need_rethrow; need_rethrow = FALSE;
+ dsp->check_cstack = check_cstack; check_cstack = FALSE;
+ dsp->current_exception = current_exception; current_exception = NULL;
+}
+
+ static void
+restore_dbg_stuff(struct dbg_stuff *dsp)
+{
+ suppress_errthrow = FALSE;
+ trylevel = dsp->trylevel;
+ force_abort = dsp->force_abort;
+ caught_stack = dsp->caught_stack;
+ (void)v_exception(dsp->vv_exception);
+ (void)v_throwpoint(dsp->vv_throwpoint);
+ did_emsg = dsp->did_emsg;
+ got_int = dsp->got_int;
+ did_throw = dsp->did_throw;
+ need_rethrow = dsp->need_rethrow;
+ check_cstack = dsp->check_cstack;
+ current_exception = dsp->current_exception;
+}
+#endif
+
+/*
+ * do_exmode(): Repeatedly get commands for the "Ex" mode, until the ":vi"
+ * command is given.
+ */
+ void
+do_exmode(
+ int improved) // TRUE for "improved Ex" mode
+{
+ int save_msg_scroll;
+ int prev_msg_row;
+ linenr_T prev_line;
+ varnumber_T changedtick;
+
+ if (improved)
+ exmode_active = EXMODE_VIM;
+ else
+ exmode_active = EXMODE_NORMAL;
+ State = MODE_NORMAL;
+ may_trigger_modechanged();
+
+ // When using ":global /pat/ visual" and then "Q" we return to continue
+ // the :global command.
+ if (global_busy)
+ return;
+
+ save_msg_scroll = msg_scroll;
+ ++RedrawingDisabled; // don't redisplay the window
+ ++no_wait_return; // don't wait for return
+#ifdef FEAT_GUI
+ // Ignore scrollbar and mouse events in Ex mode
+ ++hold_gui_events;
+#endif
+
+ msg(_("Entering Ex mode. Type \"visual\" to go to Normal mode."));
+ while (exmode_active)
+ {
+ // Check for a ":normal" command and no more characters left.
+ if (ex_normal_busy > 0 && typebuf.tb_len == 0)
+ {
+ exmode_active = FALSE;
+ break;
+ }
+ msg_scroll = TRUE;
+ need_wait_return = FALSE;
+ ex_pressedreturn = FALSE;
+ ex_no_reprint = FALSE;
+ changedtick = CHANGEDTICK(curbuf);
+ prev_msg_row = msg_row;
+ prev_line = curwin->w_cursor.lnum;
+ if (improved)
+ {
+ cmdline_row = msg_row;
+ do_cmdline(NULL, getexline, NULL, 0);
+ }
+ else
+ do_cmdline(NULL, getexmodeline, NULL, DOCMD_NOWAIT);
+ lines_left = Rows - 1;
+
+ if ((prev_line != curwin->w_cursor.lnum
+ || changedtick != CHANGEDTICK(curbuf)) && !ex_no_reprint)
+ {
+ if (curbuf->b_ml.ml_flags & ML_EMPTY)
+ emsg(_(e_empty_buffer));
+ else
+ {
+ if (ex_pressedreturn)
+ {
+ // go up one line, to overwrite the ":<CR>" line, so the
+ // output doesn't contain empty lines.
+ msg_row = prev_msg_row;
+ if (prev_msg_row == Rows - 1)
+ msg_row--;
+ }
+ msg_col = 0;
+ print_line_no_prefix(curwin->w_cursor.lnum, FALSE, FALSE);
+ msg_clr_eos();
+ }
+ }
+ else if (ex_pressedreturn && !ex_no_reprint) // must be at EOF
+ {
+ if (curbuf->b_ml.ml_flags & ML_EMPTY)
+ emsg(_(e_empty_buffer));
+ else
+ emsg(_(e_at_end_of_file));
+ }
+ }
+
+#ifdef FEAT_GUI
+ --hold_gui_events;
+#endif
+ if (RedrawingDisabled > 0)
+ --RedrawingDisabled;
+ --no_wait_return;
+ update_screen(UPD_CLEAR);
+ need_wait_return = FALSE;
+ msg_scroll = save_msg_scroll;
+}
+
+/*
+ * Print the executed command for when 'verbose' is set.
+ * When "lnum" is 0 only print the command.
+ */
+ static void
+msg_verbose_cmd(linenr_T lnum, char_u *cmd)
+{
+ ++no_wait_return;
+ verbose_enter_scroll();
+
+ if (lnum == 0)
+ smsg(_("Executing: %s"), cmd);
+ else
+ smsg(_("line %ld: %s"), (long)lnum, cmd);
+ if (msg_silent == 0)
+ msg_puts("\n"); // don't overwrite this
+
+ verbose_leave_scroll();
+ --no_wait_return;
+}
+
+/*
+ * Execute a simple command line. Used for translated commands like "*".
+ */
+ int
+do_cmdline_cmd(char_u *cmd)
+{
+ return do_cmdline(cmd, NULL, NULL,
+ DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED);
+}
+
+/*
+ * Execute the "+cmd" argument of "edit +cmd fname" and the like.
+ * This allows for using a range without ":" in Vim9 script.
+ */
+ static int
+do_cmd_argument(char_u *cmd)
+{
+ return do_cmdline(cmd, NULL, NULL,
+ DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED|DOCMD_RANGEOK);
+}
+
+/*
+ * do_cmdline(): execute one Ex command line
+ *
+ * 1. Execute "cmdline" when it is not NULL.
+ * If "cmdline" is NULL, or more lines are needed, fgetline() is used.
+ * 2. Split up in parts separated with '|'.
+ *
+ * This function can be called recursively!
+ *
+ * flags:
+ * DOCMD_VERBOSE - The command will be included in the error message.
+ * DOCMD_NOWAIT - Don't call wait_return() and friends.
+ * DOCMD_REPEAT - Repeat execution until fgetline() returns NULL.
+ * DOCMD_KEYTYPED - Don't reset KeyTyped.
+ * DOCMD_EXCRESET - Reset the exception environment (used for debugging).
+ * DOCMD_KEEPLINE - Store first typed line (for repeating with ".").
+ *
+ * return FAIL if cmdline could not be executed, OK otherwise
+ */
+ int
+do_cmdline(
+ char_u *cmdline,
+ char_u *(*fgetline)(int, void *, int, getline_opt_T),
+ void *cookie, // argument for fgetline()
+ int flags)
+{
+ char_u *next_cmdline; // next cmd to execute
+ char_u *cmdline_copy = NULL; // copy of cmd line
+ int used_getline = FALSE; // used "fgetline" to obtain command
+ static int recursive = 0; // recursive depth
+ int msg_didout_before_start = 0;
+ int count = 0; // line number count
+ int did_inc_RedrawingDisabled = FALSE;
+ int retval = OK;
+#ifdef FEAT_EVAL
+ cstack_T cstack; // conditional stack
+ garray_T lines_ga; // keep lines for ":while"/":for"
+ int current_line = 0; // active line in lines_ga
+ int current_line_before = 0;
+ char_u *fname = NULL; // function or script name
+ linenr_T *breakpoint = NULL; // ptr to breakpoint field in cookie
+ int *dbg_tick = NULL; // ptr to dbg_tick field in cookie
+ struct dbg_stuff debug_saved; // saved things for debug mode
+ int initial_trylevel;
+ msglist_T **saved_msg_list = NULL;
+ msglist_T *private_msg_list = NULL;
+
+ // "fgetline" and "cookie" passed to do_one_cmd()
+ char_u *(*cmd_getline)(int, void *, int, getline_opt_T);
+ void *cmd_cookie;
+ struct loop_cookie cmd_loop_cookie;
+ void *real_cookie;
+ int getline_is_func;
+#else
+# define cmd_getline fgetline
+# define cmd_cookie cookie
+#endif
+ static int call_depth = 0; // recursiveness
+#ifdef FEAT_EVAL
+ // For every pair of do_cmdline()/do_one_cmd() calls, use an extra memory
+ // location for storing error messages to be converted to an exception.
+ // This ensures that the do_errthrow() call in do_one_cmd() does not
+ // combine the messages stored by an earlier invocation of do_one_cmd()
+ // with the command name of the later one. This would happen when
+ // BufWritePost autocommands are executed after a write error.
+ saved_msg_list = msg_list;
+ msg_list = &private_msg_list;
+#endif
+
+ // It's possible to create an endless loop with ":execute", catch that
+ // here. The value of 200 allows nested function calls, ":source", etc.
+ // Allow 200 or 'maxfuncdepth', whatever is larger.
+ if (call_depth >= 200
+#ifdef FEAT_EVAL
+ && call_depth >= p_mfd
+#endif
+ )
+ {
+ emsg(_(e_command_too_recursive));
+#ifdef FEAT_EVAL
+ // When converting to an exception, we do not include the command name
+ // since this is not an error of the specific command.
+ do_errthrow((cstack_T *)NULL, (char_u *)NULL);
+ msg_list = saved_msg_list;
+#endif
+ return FAIL;
+ }
+ ++call_depth;
+
+#ifdef FEAT_EVAL
+ CLEAR_FIELD(cstack);
+ cstack.cs_idx = -1;
+ ga_init2(&lines_ga, sizeof(wcmd_T), 10);
+
+ real_cookie = getline_cookie(fgetline, cookie);
+
+ // Inside a function use a higher nesting level.
+ getline_is_func = getline_equal(fgetline, cookie, get_func_line);
+ if (getline_is_func && ex_nesting_level == func_level(real_cookie))
+ ++ex_nesting_level;
+
+ // Get the function or script name and the address where the next breakpoint
+ // line and the debug tick for a function or script are stored.
+ if (getline_is_func)
+ {
+ fname = func_name(real_cookie);
+ breakpoint = func_breakpoint(real_cookie);
+ dbg_tick = func_dbg_tick(real_cookie);
+ }
+ else if (getline_equal(fgetline, cookie, getsourceline))
+ {
+ fname = SOURCING_NAME;
+ breakpoint = source_breakpoint(real_cookie);
+ dbg_tick = source_dbg_tick(real_cookie);
+ }
+
+ /*
+ * Initialize "force_abort" and "suppress_errthrow" at the top level.
+ */
+ if (!recursive)
+ {
+ force_abort = FALSE;
+ suppress_errthrow = FALSE;
+ }
+
+ /*
+ * If requested, store and reset the global values controlling the
+ * exception handling (used when debugging). Otherwise clear it to avoid
+ * a bogus compiler warning when the optimizer uses inline functions...
+ */
+ if (flags & DOCMD_EXCRESET)
+ save_dbg_stuff(&debug_saved);
+ else
+ CLEAR_FIELD(debug_saved);
+
+ initial_trylevel = trylevel;
+
+ /*
+ * "did_throw" will be set to TRUE when an exception is being thrown.
+ */
+ did_throw = FALSE;
+#endif
+ /*
+ * "did_emsg" will be set to TRUE when emsg() is used, in which case we
+ * cancel the whole command line, and any if/endif or loop.
+ * If force_abort is set, we cancel everything.
+ */
+#ifdef FEAT_EVAL
+ did_emsg_cumul += did_emsg;
+#endif
+ did_emsg = FALSE;
+
+ /*
+ * KeyTyped is only set when calling vgetc(). Reset it here when not
+ * calling vgetc() (sourced command lines).
+ */
+ if (!(flags & DOCMD_KEYTYPED)
+ && !getline_equal(fgetline, cookie, getexline))
+ KeyTyped = FALSE;
+
+ /*
+ * Continue executing command lines:
+ * - when inside an ":if", ":while" or ":for"
+ * - for multiple commands on one line, separated with '|'
+ * - when repeating until there are no more lines (for ":source")
+ */
+ next_cmdline = cmdline;
+ do
+ {
+#ifdef FEAT_EVAL
+ getline_is_func = getline_equal(fgetline, cookie, get_func_line);
+#endif
+
+ // stop skipping cmds for an error msg after all endif/while/for
+ if (next_cmdline == NULL
+#ifdef FEAT_EVAL
+ && !force_abort
+ && cstack.cs_idx < 0
+ && !(getline_is_func && func_has_abort(real_cookie))
+#endif
+ )
+ {
+#ifdef FEAT_EVAL
+ did_emsg_cumul += did_emsg;
+#endif
+ did_emsg = FALSE;
+ }
+
+ /*
+ * 1. If repeating a line in a loop, get a line from lines_ga.
+ * 2. If no line given: Get an allocated line with fgetline().
+ * 3. If a line is given: Make a copy, so we can mess with it.
+ */
+
+#ifdef FEAT_EVAL
+ // 1. If repeating, get a previous line from lines_ga.
+ if (cstack.cs_looplevel > 0 && current_line < lines_ga.ga_len)
+ {
+ // Each '|' separated command is stored separately in lines_ga, to
+ // be able to jump to it. Don't use next_cmdline now.
+ VIM_CLEAR(cmdline_copy);
+
+ // Check if a function has returned or, unless it has an unclosed
+ // try conditional, aborted.
+ if (getline_is_func)
+ {
+# ifdef FEAT_PROFILE
+ if (do_profiling == PROF_YES)
+ func_line_end(real_cookie);
+# endif
+ if (func_has_ended(real_cookie))
+ {
+ retval = FAIL;
+ break;
+ }
+ }
+#ifdef FEAT_PROFILE
+ else if (do_profiling == PROF_YES
+ && getline_equal(fgetline, cookie, getsourceline))
+ script_line_end();
+#endif
+
+ // Check if a sourced file hit a ":finish" command.
+ if (source_finished(fgetline, cookie))
+ {
+ retval = FAIL;
+ break;
+ }
+
+ // If breakpoints have been added/deleted need to check for it.
+ if (breakpoint != NULL && dbg_tick != NULL
+ && *dbg_tick != debug_tick)
+ {
+ *breakpoint = dbg_find_breakpoint(
+ getline_equal(fgetline, cookie, getsourceline),
+ fname, SOURCING_LNUM);
+ *dbg_tick = debug_tick;
+ }
+
+ next_cmdline = ((wcmd_T *)(lines_ga.ga_data))[current_line].line;
+ SOURCING_LNUM = ((wcmd_T *)(lines_ga.ga_data))[current_line].lnum;
+
+ // Did we encounter a breakpoint?
+ if (breakpoint != NULL && *breakpoint != 0
+ && *breakpoint <= SOURCING_LNUM)
+ {
+ dbg_breakpoint(fname, SOURCING_LNUM);
+ // Find next breakpoint.
+ *breakpoint = dbg_find_breakpoint(
+ getline_equal(fgetline, cookie, getsourceline),
+ fname, SOURCING_LNUM);
+ *dbg_tick = debug_tick;
+ }
+# ifdef FEAT_PROFILE
+ if (do_profiling == PROF_YES)
+ {
+ if (getline_is_func)
+ func_line_start(real_cookie, SOURCING_LNUM);
+ else if (getline_equal(fgetline, cookie, getsourceline))
+ script_line_start();
+ }
+# endif
+ }
+#endif
+
+ // 2. If no line given, get an allocated line with fgetline().
+ if (next_cmdline == NULL)
+ {
+ /*
+ * Need to set msg_didout for the first line after an ":if",
+ * otherwise the ":if" will be overwritten.
+ */
+ if (count == 1 && getline_equal(fgetline, cookie, getexline))
+ msg_didout = TRUE;
+ if (fgetline == NULL || (next_cmdline = fgetline(':', cookie,
+#ifdef FEAT_EVAL
+ cstack.cs_idx < 0 ? 0 : (cstack.cs_idx + 1) * 2
+#else
+ 0
+#endif
+ , in_vim9script() ? GETLINE_CONCAT_CONTBAR
+ : GETLINE_CONCAT_CONT)) == NULL)
+ {
+ // Don't call wait_return() for aborted command line. The NULL
+ // returned for the end of a sourced file or executed function
+ // doesn't do this.
+ if (KeyTyped && !(flags & DOCMD_REPEAT))
+ need_wait_return = FALSE;
+ retval = FAIL;
+ break;
+ }
+ used_getline = TRUE;
+
+ /*
+ * Keep the first typed line. Clear it when more lines are typed.
+ */
+ if (flags & DOCMD_KEEPLINE)
+ {
+ vim_free(repeat_cmdline);
+ if (count == 0)
+ repeat_cmdline = vim_strsave(next_cmdline);
+ else
+ repeat_cmdline = NULL;
+ }
+ }
+
+ // 3. Make a copy of the command so we can mess with it.
+ else if (cmdline_copy == NULL)
+ {
+ next_cmdline = vim_strsave(next_cmdline);
+ if (next_cmdline == NULL)
+ {
+ emsg(_(e_out_of_memory));
+ retval = FAIL;
+ break;
+ }
+ }
+ cmdline_copy = next_cmdline;
+
+#ifdef FEAT_EVAL
+ /*
+ * Inside a while/for loop, and when the command looks like a ":while"
+ * or ":for", the line is stored, because we may need it later when
+ * looping.
+ *
+ * When there is a '|' and another command, it is stored separately,
+ * because we need to be able to jump back to it from an
+ * :endwhile/:endfor.
+ *
+ * Pass a different "fgetline" function to do_one_cmd() below,
+ * that it stores lines in or reads them from "lines_ga". Makes it
+ * possible to define a function inside a while/for loop and handles
+ * line continuation.
+ */
+ if ((cstack.cs_looplevel > 0 || has_loop_cmd(next_cmdline)))
+ {
+ cmd_getline = get_loop_line;
+ cmd_cookie = (void *)&cmd_loop_cookie;
+ cmd_loop_cookie.lines_gap = &lines_ga;
+ cmd_loop_cookie.current_line = current_line;
+ cmd_loop_cookie.lc_getline = fgetline;
+ cmd_loop_cookie.cookie = cookie;
+ cmd_loop_cookie.repeating = (current_line < lines_ga.ga_len);
+
+ // Save the current line when encountering it the first time.
+ if (current_line == lines_ga.ga_len
+ && store_loop_line(&lines_ga, next_cmdline) == FAIL)
+ {
+ retval = FAIL;
+ break;
+ }
+ current_line_before = current_line;
+ }
+ else
+ {
+ cmd_getline = fgetline;
+ cmd_cookie = cookie;
+ }
+
+ did_endif = FALSE;
+#endif
+
+ if (count++ == 0)
+ {
+ /*
+ * All output from the commands is put below each other, without
+ * waiting for a return. Don't do this when executing commands
+ * from a script or when being called recursive (e.g. for ":e
+ * +command file").
+ */
+ if (!(flags & DOCMD_NOWAIT) && !recursive)
+ {
+ msg_didout_before_start = msg_didout;
+ msg_didany = FALSE; // no output yet
+ msg_start();
+ msg_scroll = TRUE; // put messages below each other
+ ++no_wait_return; // don't wait for return until finished
+ ++RedrawingDisabled;
+ did_inc_RedrawingDisabled = TRUE;
+ }
+ }
+
+ if ((p_verbose >= 15 && SOURCING_NAME != NULL) || p_verbose >= 16)
+ msg_verbose_cmd(SOURCING_LNUM, cmdline_copy);
+
+ /*
+ * 2. Execute one '|' separated command.
+ * do_one_cmd() will return NULL if there is no trailing '|'.
+ * "cmdline_copy" can change, e.g. for '%' and '#' expansion.
+ */
+ ++recursive;
+ next_cmdline = do_one_cmd(&cmdline_copy, flags,
+#ifdef FEAT_EVAL
+ &cstack,
+#endif
+ cmd_getline, cmd_cookie);
+ --recursive;
+
+#ifdef FEAT_EVAL
+ if (cmd_cookie == (void *)&cmd_loop_cookie)
+ // Use "current_line" from "cmd_loop_cookie", it may have been
+ // incremented when defining a function.
+ current_line = cmd_loop_cookie.current_line;
+#endif
+
+ if (next_cmdline == NULL)
+ {
+ VIM_CLEAR(cmdline_copy);
+
+ /*
+ * If the command was typed, remember it for the ':' register.
+ * Do this AFTER executing the command to make :@: work.
+ */
+ if (getline_equal(fgetline, cookie, getexline)
+ && new_last_cmdline != NULL)
+ {
+ vim_free(last_cmdline);
+ last_cmdline = new_last_cmdline;
+ new_last_cmdline = NULL;
+ }
+ }
+ else
+ {
+ // need to copy the command after the '|' to cmdline_copy, for the
+ // next do_one_cmd()
+ STRMOVE(cmdline_copy, next_cmdline);
+ next_cmdline = cmdline_copy;
+ }
+
+
+#ifdef FEAT_EVAL
+ // reset did_emsg for a function that is not aborted by an error
+ if (did_emsg && !force_abort
+ && getline_equal(fgetline, cookie, get_func_line)
+ && !func_has_abort(real_cookie))
+ {
+ // did_emsg_cumul is not set here
+ did_emsg = FALSE;
+ }
+
+ if (cstack.cs_looplevel > 0)
+ {
+ ++current_line;
+
+ /*
+ * An ":endwhile", ":endfor" and ":continue" is handled here.
+ * If we were executing commands, jump back to the ":while" or
+ * ":for".
+ * If we were not executing commands, decrement cs_looplevel.
+ */
+ if (cstack.cs_lflags & (CSL_HAD_CONT | CSL_HAD_ENDLOOP))
+ {
+ cstack.cs_lflags &= ~(CSL_HAD_CONT | CSL_HAD_ENDLOOP);
+
+ // Jump back to the matching ":while" or ":for". Be careful
+ // not to use a cs_line[] from an entry that isn't a ":while"
+ // or ":for": It would make "current_line" invalid and can
+ // cause a crash.
+ if (!did_emsg && !got_int && !did_throw
+ && cstack.cs_idx >= 0
+ && (cstack.cs_flags[cstack.cs_idx]
+ & (CSF_WHILE | CSF_FOR))
+ && cstack.cs_line[cstack.cs_idx] >= 0
+ && (cstack.cs_flags[cstack.cs_idx] & CSF_ACTIVE))
+ {
+ current_line = cstack.cs_line[cstack.cs_idx];
+ // remember we jumped there
+ cstack.cs_lflags |= CSL_HAD_LOOP;
+ line_breakcheck(); // check if CTRL-C typed
+
+ // Check for the next breakpoint at or after the ":while"
+ // or ":for".
+ if (breakpoint != NULL && lines_ga.ga_len > current_line)
+ {
+ *breakpoint = dbg_find_breakpoint(
+ getline_equal(fgetline, cookie, getsourceline),
+ fname,
+ ((wcmd_T *)lines_ga.ga_data)[current_line].lnum-1);
+ *dbg_tick = debug_tick;
+ }
+ }
+ else
+ {
+ // can only get here with ":endwhile" or ":endfor"
+ if (cstack.cs_idx >= 0)
+ rewind_conditionals(&cstack, cstack.cs_idx - 1,
+ CSF_WHILE | CSF_FOR, &cstack.cs_looplevel);
+ }
+ }
+
+ /*
+ * For a ":while" or ":for" we need to remember the line number.
+ */
+ else if (cstack.cs_lflags & CSL_HAD_LOOP)
+ {
+ cstack.cs_lflags &= ~CSL_HAD_LOOP;
+ cstack.cs_line[cstack.cs_idx] = current_line_before;
+ }
+ }
+
+ // Check for the next breakpoint after a watchexpression
+ if (breakpoint != NULL && has_watchexpr())
+ {
+ *breakpoint = dbg_find_breakpoint(FALSE, fname, SOURCING_LNUM);
+ *dbg_tick = debug_tick;
+ }
+
+ /*
+ * When not inside any ":while" loop, clear remembered lines.
+ */
+ if (cstack.cs_looplevel == 0)
+ {
+ if (lines_ga.ga_len > 0)
+ {
+ SOURCING_LNUM =
+ ((wcmd_T *)lines_ga.ga_data)[lines_ga.ga_len - 1].lnum;
+ free_cmdlines(&lines_ga);
+ }
+ current_line = 0;
+ }
+
+ /*
+ * A ":finally" makes did_emsg, got_int, and did_throw pending for
+ * being restored at the ":endtry". Reset them here and set the
+ * ACTIVE and FINALLY flags, so that the finally clause gets executed.
+ * This includes the case where a missing ":endif", ":endwhile" or
+ * ":endfor" was detected by the ":finally" itself.
+ */
+ if (cstack.cs_lflags & CSL_HAD_FINA)
+ {
+ cstack.cs_lflags &= ~CSL_HAD_FINA;
+ report_make_pending(cstack.cs_pending[cstack.cs_idx]
+ & (CSTP_ERROR | CSTP_INTERRUPT | CSTP_THROW),
+ did_throw ? (void *)current_exception : NULL);
+ did_emsg = got_int = did_throw = FALSE;
+ cstack.cs_flags[cstack.cs_idx] |= CSF_ACTIVE | CSF_FINALLY;
+ }
+
+ // Update global "trylevel" for recursive calls to do_cmdline() from
+ // within this loop.
+ trylevel = initial_trylevel + cstack.cs_trylevel;
+
+ /*
+ * If the outermost try conditional (across function calls and sourced
+ * files) is aborted because of an error, an interrupt, or an uncaught
+ * exception, cancel everything. If it is left normally, reset
+ * force_abort to get the non-EH compatible abortion behavior for
+ * the rest of the script.
+ */
+ if (trylevel == 0 && !did_emsg && !got_int && !did_throw)
+ force_abort = FALSE;
+
+ // Convert an interrupt to an exception if appropriate.
+ (void)do_intthrow(&cstack);
+#endif // FEAT_EVAL
+
+ }
+ /*
+ * Continue executing command lines when:
+ * - no CTRL-C typed, no aborting error, no exception thrown or try
+ * conditionals need to be checked for executing finally clauses or
+ * catching an interrupt exception
+ * - didn't get an error message or lines are not typed
+ * - there is a command after '|', inside a :if, :while, :for or :try, or
+ * looping for ":source" command or function call.
+ */
+ while (!((got_int
+#ifdef FEAT_EVAL
+ || (did_emsg && (force_abort || in_vim9script()))
+ || did_throw
+#endif
+ )
+#ifdef FEAT_EVAL
+ && cstack.cs_trylevel == 0
+#endif
+ )
+ && !(did_emsg
+#ifdef FEAT_EVAL
+ // Keep going when inside try/catch, so that the error can be
+ // deal with, except when it is a syntax error, it may cause
+ // the :endtry to be missed.
+ && (cstack.cs_trylevel == 0 || did_emsg_syntax)
+#endif
+ && used_getline
+ && (getline_equal(fgetline, cookie, getexmodeline)
+ || getline_equal(fgetline, cookie, getexline)))
+ && (next_cmdline != NULL
+#ifdef FEAT_EVAL
+ || cstack.cs_idx >= 0
+#endif
+ || (flags & DOCMD_REPEAT)));
+
+ vim_free(cmdline_copy);
+ did_emsg_syntax = FALSE;
+#ifdef FEAT_EVAL
+ free_cmdlines(&lines_ga);
+ ga_clear(&lines_ga);
+
+ if (cstack.cs_idx >= 0)
+ {
+ /*
+ * If a sourced file or executed function ran to its end, report the
+ * unclosed conditional.
+ * In Vim9 script do not give a second error, executing aborts after
+ * the first one.
+ */
+ if (!got_int && !did_throw && !aborting()
+ && !(did_emsg && in_vim9script())
+ && ((getline_equal(fgetline, cookie, getsourceline)
+ && !source_finished(fgetline, cookie))
+ || (getline_equal(fgetline, cookie, get_func_line)
+ && !func_has_ended(real_cookie))))
+ {
+ if (cstack.cs_flags[cstack.cs_idx] & CSF_TRY)
+ emsg(_(e_missing_endtry));
+ else if (cstack.cs_flags[cstack.cs_idx] & CSF_WHILE)
+ emsg(_(e_missing_endwhile));
+ else if (cstack.cs_flags[cstack.cs_idx] & CSF_FOR)
+ emsg(_(e_missing_endfor));
+ else
+ emsg(_(e_missing_endif));
+ }
+
+ /*
+ * Reset "trylevel" in case of a ":finish" or ":return" or a missing
+ * ":endtry" in a sourced file or executed function. If the try
+ * conditional is in its finally clause, ignore anything pending.
+ * If it is in a catch clause, finish the caught exception.
+ * Also cleanup any "cs_forinfo" structures.
+ */
+ do
+ {
+ int idx = cleanup_conditionals(&cstack, 0, TRUE);
+
+ if (idx >= 0)
+ --idx; // remove try block not in its finally clause
+ rewind_conditionals(&cstack, idx, CSF_WHILE | CSF_FOR,
+ &cstack.cs_looplevel);
+ }
+ while (cstack.cs_idx >= 0);
+ trylevel = initial_trylevel;
+ }
+
+ // If a missing ":endtry", ":endwhile", ":endfor", or ":endif" or a memory
+ // lack was reported above and the error message is to be converted to an
+ // exception, do this now after rewinding the cstack.
+ do_errthrow(&cstack, getline_equal(fgetline, cookie, get_func_line)
+ ? (char_u *)"endfunction" : (char_u *)NULL);
+
+ if (trylevel == 0)
+ {
+ // Just in case did_throw got set but current_exception wasn't.
+ if (current_exception == NULL)
+ did_throw = FALSE;
+
+ /*
+ * When an exception is being thrown out of the outermost try
+ * conditional, discard the uncaught exception, disable the conversion
+ * of interrupts or errors to exceptions, and ensure that no more
+ * commands are executed.
+ */
+ if (did_throw)
+ handle_did_throw();
+
+ /*
+ * On an interrupt or an aborting error not converted to an exception,
+ * disable the conversion of errors to exceptions. (Interrupts are not
+ * converted anymore, here.) This enables also the interrupt message
+ * when force_abort is set and did_emsg unset in case of an interrupt
+ * from a finally clause after an error.
+ */
+ else if (got_int || (did_emsg && force_abort))
+ suppress_errthrow = TRUE;
+ }
+
+ /*
+ * The current cstack will be freed when do_cmdline() returns. An uncaught
+ * exception will have to be rethrown in the previous cstack. If a function
+ * has just returned or a script file was just finished and the previous
+ * cstack belongs to the same function or, respectively, script file, it
+ * will have to be checked for finally clauses to be executed due to the
+ * ":return" or ":finish". This is done in do_one_cmd().
+ */
+ if (did_throw)
+ need_rethrow = TRUE;
+ if ((getline_equal(fgetline, cookie, getsourceline)
+ && ex_nesting_level > source_level(real_cookie))
+ || (getline_equal(fgetline, cookie, get_func_line)
+ && ex_nesting_level > func_level(real_cookie) + 1))
+ {
+ if (!did_throw)
+ check_cstack = TRUE;
+ }
+ else
+ {
+ // When leaving a function, reduce nesting level.
+ if (getline_equal(fgetline, cookie, get_func_line))
+ --ex_nesting_level;
+ /*
+ * Go to debug mode when returning from a function in which we are
+ * single-stepping.
+ */
+ if ((getline_equal(fgetline, cookie, getsourceline)
+ || getline_equal(fgetline, cookie, get_func_line))
+ && ex_nesting_level + 1 <= debug_break_level)
+ do_debug(getline_equal(fgetline, cookie, getsourceline)
+ ? (char_u *)_("End of sourced file")
+ : (char_u *)_("End of function"));
+ }
+
+ /*
+ * Restore the exception environment (done after returning from the
+ * debugger).
+ */
+ if (flags & DOCMD_EXCRESET)
+ restore_dbg_stuff(&debug_saved);
+
+ msg_list = saved_msg_list;
+
+ // Cleanup if "cs_emsg_silent_list" remains.
+ if (cstack.cs_emsg_silent_list != NULL)
+ {
+ eslist_T *elem, *temp;
+
+ for (elem = cstack.cs_emsg_silent_list; elem != NULL; elem = temp)
+ {
+ temp = elem->next;
+ vim_free(elem);
+ }
+ }
+#endif // FEAT_EVAL
+
+ /*
+ * If there was too much output to fit on the command line, ask the user to
+ * hit return before redrawing the screen. With the ":global" command we do
+ * this only once after the command is finished.
+ */
+ if (did_inc_RedrawingDisabled)
+ {
+ if (RedrawingDisabled > 0)
+ --RedrawingDisabled;
+ --no_wait_return;
+ msg_scroll = FALSE;
+
+ /*
+ * When just finished an ":if"-":else" which was typed, no need to
+ * wait for hit-return. Also for an error situation.
+ */
+ if (retval == FAIL
+#ifdef FEAT_EVAL
+ || (did_endif && KeyTyped && !did_emsg)
+#endif
+ )
+ {
+ need_wait_return = FALSE;
+ msg_didany = FALSE; // don't wait when restarting edit
+ }
+ else if (need_wait_return)
+ {
+ /*
+ * The msg_start() above clears msg_didout. The wait_return() we do
+ * here should not overwrite the command that may be shown before
+ * doing that.
+ */
+ msg_didout |= msg_didout_before_start;
+ wait_return(FALSE);
+ }
+ }
+
+#ifdef FEAT_EVAL
+ did_endif = FALSE; // in case do_cmdline used recursively
+#else
+ /*
+ * Reset if_level, in case a sourced script file contains more ":if" than
+ * ":endif" (could be ":if x | foo | endif").
+ */
+ if_level = 0;
+#endif
+
+ --call_depth;
+ return retval;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Handle when "did_throw" is set after executing commands.
+ */
+ void
+handle_did_throw(void)
+{
+ char *p = NULL;
+ msglist_T *messages = NULL;
+ ESTACK_CHECK_DECLARATION;
+
+ /*
+ * If the uncaught exception is a user exception, report it as an
+ * error. If it is an error exception, display the saved error
+ * message now. For an interrupt exception, do nothing; the
+ * interrupt message is given elsewhere.
+ */
+ switch (current_exception->type)
+ {
+ case ET_USER:
+ vim_snprintf((char *)IObuff, IOSIZE,
+ _(e_exception_not_caught_str),
+ current_exception->value);
+ p = (char *)vim_strsave(IObuff);
+ break;
+ case ET_ERROR:
+ messages = current_exception->messages;
+ current_exception->messages = NULL;
+ break;
+ case ET_INTERRUPT:
+ break;
+ }
+
+ estack_push(ETYPE_EXCEPT, current_exception->throw_name,
+ current_exception->throw_lnum);
+ ESTACK_CHECK_SETUP;
+ current_exception->throw_name = NULL;
+
+ discard_current_exception(); // uses IObuff if 'verbose'
+ suppress_errthrow = TRUE;
+ force_abort = TRUE;
+
+ if (messages != NULL)
+ {
+ do
+ {
+ msglist_T *next = messages->next;
+ int save_compiling = estack_compiling;
+
+ estack_compiling = messages->msg_compiling;
+ emsg(messages->msg);
+ vim_free(messages->msg);
+ vim_free(messages->sfile);
+ vim_free(messages);
+ messages = next;
+ estack_compiling = save_compiling;
+ }
+ while (messages != NULL);
+ }
+ else if (p != NULL)
+ {
+ emsg(p);
+ vim_free(p);
+ }
+ vim_free(SOURCING_NAME);
+ ESTACK_CHECK_NOW;
+ estack_pop();
+}
+
+/*
+ * Obtain a line when inside a ":while" or ":for" loop.
+ */
+ static char_u *
+get_loop_line(int c, void *cookie, int indent, getline_opt_T options)
+{
+ struct loop_cookie *cp = (struct loop_cookie *)cookie;
+ wcmd_T *wp;
+ char_u *line;
+
+ if (cp->current_line + 1 >= cp->lines_gap->ga_len)
+ {
+ if (cp->repeating)
+ return NULL; // trying to read past ":endwhile"/":endfor"
+
+ // First time inside the ":while"/":for": get line normally.
+ if (cp->lc_getline == NULL)
+ line = getcmdline(c, 0L, indent, 0);
+ else
+ line = cp->lc_getline(c, cp->cookie, indent, options);
+ if (line != NULL && store_loop_line(cp->lines_gap, line) == OK)
+ ++cp->current_line;
+
+ return line;
+ }
+
+ KeyTyped = FALSE;
+ ++cp->current_line;
+ wp = (wcmd_T *)(cp->lines_gap->ga_data) + cp->current_line;
+ SOURCING_LNUM = wp->lnum;
+ return vim_strsave(wp->line);
+}
+
+/*
+ * Store a line in "gap" so that a ":while" loop can execute it again.
+ */
+ static int
+store_loop_line(garray_T *gap, char_u *line)
+{
+ if (ga_grow(gap, 1) == FAIL)
+ return FAIL;
+ ((wcmd_T *)(gap->ga_data))[gap->ga_len].line = vim_strsave(line);
+ ((wcmd_T *)(gap->ga_data))[gap->ga_len].lnum = SOURCING_LNUM;
+ ++gap->ga_len;
+ return OK;
+}
+
+/*
+ * Free the lines stored for a ":while" or ":for" loop.
+ */
+ static void
+free_cmdlines(garray_T *gap)
+{
+ while (gap->ga_len > 0)
+ {
+ vim_free(((wcmd_T *)(gap->ga_data))[gap->ga_len - 1].line);
+ --gap->ga_len;
+ }
+}
+#endif
+
+/*
+ * If "fgetline" is get_loop_line(), return TRUE if the getline it uses equals
+ * "func". * Otherwise return TRUE when "fgetline" equals "func".
+ */
+ int
+getline_equal(
+ char_u *(*fgetline)(int, void *, int, getline_opt_T),
+ void *cookie UNUSED, // argument for fgetline()
+ char_u *(*func)(int, void *, int, getline_opt_T))
+{
+#ifdef FEAT_EVAL
+ char_u *(*gp)(int, void *, int, getline_opt_T);
+ struct loop_cookie *cp;
+
+ // When "fgetline" is "get_loop_line()" use the "cookie" to find the
+ // function that's originally used to obtain the lines. This may be
+ // nested several levels.
+ gp = fgetline;
+ cp = (struct loop_cookie *)cookie;
+ while (gp == get_loop_line)
+ {
+ gp = cp->lc_getline;
+ cp = cp->cookie;
+ }
+ return gp == func;
+#else
+ return fgetline == func;
+#endif
+}
+
+/*
+ * If "fgetline" is get_loop_line(), return the cookie used by the original
+ * getline function. Otherwise return "cookie".
+ */
+ void *
+getline_cookie(
+ char_u *(*fgetline)(int, void *, int, getline_opt_T) UNUSED,
+ void *cookie) // argument for fgetline()
+{
+#ifdef FEAT_EVAL
+ char_u *(*gp)(int, void *, int, getline_opt_T);
+ struct loop_cookie *cp;
+
+ // When "fgetline" is "get_loop_line()" use the "cookie" to find the
+ // cookie that's originally used to obtain the lines. This may be nested
+ // several levels.
+ gp = fgetline;
+ cp = (struct loop_cookie *)cookie;
+ while (gp == get_loop_line)
+ {
+ gp = cp->lc_getline;
+ cp = cp->cookie;
+ }
+ return cp;
+#else
+ return cookie;
+#endif
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Get the next line source line without advancing.
+ */
+ char_u *
+getline_peek(
+ char_u *(*fgetline)(int, void *, int, getline_opt_T) UNUSED,
+ void *cookie) // argument for fgetline()
+{
+ char_u *(*gp)(int, void *, int, getline_opt_T);
+ struct loop_cookie *cp;
+ wcmd_T *wp;
+
+ // When "fgetline" is "get_loop_line()" use the "cookie" to find the
+ // cookie that's originally used to obtain the lines. This may be nested
+ // several levels.
+ gp = fgetline;
+ cp = (struct loop_cookie *)cookie;
+ while (gp == get_loop_line)
+ {
+ if (cp->current_line + 1 < cp->lines_gap->ga_len)
+ {
+ // executing lines a second time, use the stored copy
+ wp = (wcmd_T *)(cp->lines_gap->ga_data) + cp->current_line + 1;
+ return wp->line;
+ }
+ gp = cp->lc_getline;
+ cp = cp->cookie;
+ }
+ if (gp == getsourceline)
+ return source_nextline(cp);
+ return NULL;
+}
+#endif
+
+
+/*
+ * Helper function to apply an offset for buffer commands, i.e. ":bdelete",
+ * ":bwipeout", etc.
+ * Returns the buffer number.
+ */
+ static int
+compute_buffer_local_count(int addr_type, int lnum, int offset)
+{
+ buf_T *buf;
+ buf_T *nextbuf;
+ int count = offset;
+
+ buf = firstbuf;
+ while (buf->b_next != NULL && buf->b_fnum < lnum)
+ buf = buf->b_next;
+ while (count != 0)
+ {
+ count += (offset < 0) ? 1 : -1;
+ nextbuf = (offset < 0) ? buf->b_prev : buf->b_next;
+ if (nextbuf == NULL)
+ break;
+ buf = nextbuf;
+ if (addr_type == ADDR_LOADED_BUFFERS)
+ // skip over unloaded buffers
+ while (buf->b_ml.ml_mfp == NULL)
+ {
+ nextbuf = (offset < 0) ? buf->b_prev : buf->b_next;
+ if (nextbuf == NULL)
+ break;
+ buf = nextbuf;
+ }
+ }
+ // we might have gone too far, last buffer is not loadedd
+ if (addr_type == ADDR_LOADED_BUFFERS)
+ while (buf->b_ml.ml_mfp == NULL)
+ {
+ nextbuf = (offset >= 0) ? buf->b_prev : buf->b_next;
+ if (nextbuf == NULL)
+ break;
+ buf = nextbuf;
+ }
+ return buf->b_fnum;
+}
+
+/*
+ * Return the window number of "win".
+ * When "win" is NULL return the number of windows.
+ */
+ static int
+current_win_nr(win_T *win)
+{
+ win_T *wp;
+ int nr = 0;
+
+ FOR_ALL_WINDOWS(wp)
+ {
+ ++nr;
+ if (wp == win)
+ break;
+ }
+ return nr;
+}
+
+ static int
+current_tab_nr(tabpage_T *tab)
+{
+ tabpage_T *tp;
+ int nr = 0;
+
+ FOR_ALL_TABPAGES(tp)
+ {
+ ++nr;
+ if (tp == tab)
+ break;
+ }
+ return nr;
+}
+
+ static int
+comment_start(char_u *p, int starts_with_colon UNUSED)
+{
+ if (in_vim9script())
+ return p[0] == '#' && !starts_with_colon;
+ return *p == '"';
+}
+
+# define CURRENT_WIN_NR current_win_nr(curwin)
+# define LAST_WIN_NR current_win_nr(NULL)
+# define CURRENT_TAB_NR current_tab_nr(curtab)
+# define LAST_TAB_NR current_tab_nr(NULL)
+
+/*
+ * Execute one Ex command.
+ *
+ * If "flags" has DOCMD_VERBOSE, the command will be included in the error
+ * message.
+ *
+ * 1. skip comment lines and leading space
+ * 2. handle command modifiers
+ * 3. find the command
+ * 4. parse range
+ * 5. Parse the command.
+ * 6. parse arguments
+ * 7. switch on command name
+ *
+ * Note: "fgetline" can be NULL.
+ *
+ * This function may be called recursively!
+ */
+ static char_u *
+do_one_cmd(
+ char_u **cmdlinep,
+ int flags,
+#ifdef FEAT_EVAL
+ cstack_T *cstack,
+#endif
+ char_u *(*fgetline)(int, void *, int, getline_opt_T),
+ void *cookie) // argument for fgetline()
+{
+ char_u *p;
+ linenr_T lnum;
+ long n;
+ char *errormsg = NULL; // error message
+ char_u *after_modifier = NULL;
+ exarg_T ea; // Ex command arguments
+ cmdmod_T save_cmdmod;
+ int save_reg_executing = reg_executing;
+ int save_pending_end_reg_executing = pending_end_reg_executing;
+ int ni; // set when Not Implemented
+ char_u *cmd;
+ int starts_with_colon = FALSE;
+ int may_have_range;
+#ifdef FEAT_EVAL
+ int did_set_expr_line = FALSE;
+#endif
+ int sourcing = flags & DOCMD_VERBOSE;
+ int did_append_cmd = FALSE;
+
+ CLEAR_FIELD(ea);
+ ea.line1 = 1;
+ ea.line2 = 1;
+#ifdef FEAT_EVAL
+ ++ex_nesting_level;
+#endif
+
+ // When the last file has not been edited :q has to be typed twice.
+ if (quitmore
+#ifdef FEAT_EVAL
+ // avoid that a function call in 'statusline' does this
+ && !getline_equal(fgetline, cookie, get_func_line)
+#endif
+ // avoid that an autocommand, e.g. QuitPre, does this
+ && !getline_equal(fgetline, cookie, getnextac))
+ --quitmore;
+
+ /*
+ * Reset browse, confirm, etc.. They are restored when returning, for
+ * recursive calls.
+ */
+ save_cmdmod = cmdmod;
+
+ // "#!anything" is handled like a comment.
+ if ((*cmdlinep)[0] == '#' && (*cmdlinep)[1] == '!')
+ goto doend;
+
+/*
+ * 1. Skip comment lines and leading white space and colons.
+ * 2. Handle command modifiers.
+ */
+ // The "ea" structure holds the arguments that can be used.
+ ea.cmd = *cmdlinep;
+ ea.cmdlinep = cmdlinep;
+ ea.ea_getline = fgetline;
+ ea.cookie = cookie;
+#ifdef FEAT_EVAL
+ ea.cstack = cstack;
+ starts_with_colon = *skipwhite(ea.cmd) == ':';
+#endif
+ if (parse_command_modifiers(&ea, &errormsg, &cmdmod, FALSE) == FAIL)
+ goto doend;
+ apply_cmdmod(&cmdmod);
+ after_modifier = ea.cmd;
+
+#ifdef FEAT_EVAL
+ ea.skip = did_emsg || got_int || did_throw || (cstack->cs_idx >= 0
+ && !(cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE));
+#else
+ ea.skip = (if_level > 0);
+#endif
+
+/*
+ * 3. Skip over the range to find the command. Let "p" point to after it.
+ *
+ * We need the command to know what kind of range it uses.
+ */
+ cmd = ea.cmd;
+
+ // In Vim9 script a colon is required before the range. This may also be
+ // after command modifiers.
+ int vim9script = in_vim9script();
+ if (vim9script && (flags & DOCMD_RANGEOK) == 0)
+ {
+ may_have_range = FALSE;
+ for (p = ea.cmd; p >= *cmdlinep; --p)
+ {
+ if (*p == ':')
+ may_have_range = TRUE;
+ if (p < ea.cmd && !VIM_ISWHITE(*p))
+ break;
+ }
+ }
+ else
+ may_have_range = TRUE;
+ if (may_have_range)
+ ea.cmd = skip_range(ea.cmd, TRUE, NULL);
+
+#ifdef FEAT_EVAL
+ // Handle ":export" - it functions almost like a command modifier.
+ // ":export var Name: type"
+ // ":export def Name(..."
+ // etc.
+ if (vim9script && checkforcmd_noparen(&ea.cmd, "export", 6))
+ is_export = TRUE;
+#endif
+
+ if (vim9script && !may_have_range)
+ {
+ if (ea.cmd == cmd + 1 && *cmd == '$')
+ // should be "$VAR = val"
+ --ea.cmd;
+#ifdef FEAT_EVAL
+ p = find_ex_command(&ea, NULL, lookup_scriptitem, NULL);
+#else
+ p = find_ex_command(&ea, NULL, NULL, NULL);
+#endif
+ if (ea.cmdidx == CMD_SIZE)
+ {
+ char_u *ar = skip_range(ea.cmd, TRUE, NULL);
+
+ // If a ':' before the range is missing, give a clearer error
+ // message.
+ if (ar > ea.cmd && !ea.skip)
+ {
+ semsg(_(e_colon_required_before_range_str), ea.cmd);
+ goto doend;
+ }
+ }
+ }
+ else
+ p = find_ex_command(&ea, NULL, NULL, NULL);
+
+#ifdef FEAT_EVAL
+# ifdef FEAT_PROFILE
+ // Count this line for profiling if skip is TRUE.
+ if (do_profiling == PROF_YES
+ && (!ea.skip || cstack->cs_idx == 0 || (cstack->cs_idx > 0
+ && (cstack->cs_flags[cstack->cs_idx - 1] & CSF_ACTIVE))))
+ {
+ int skip = did_emsg || got_int || did_throw;
+
+ if (ea.cmdidx == CMD_catch)
+ skip = !skip && !(cstack->cs_idx >= 0
+ && (cstack->cs_flags[cstack->cs_idx] & CSF_THROWN)
+ && !(cstack->cs_flags[cstack->cs_idx] & CSF_CAUGHT));
+ else if (ea.cmdidx == CMD_else || ea.cmdidx == CMD_elseif)
+ skip = skip || !(cstack->cs_idx >= 0
+ && !(cstack->cs_flags[cstack->cs_idx]
+ & (CSF_ACTIVE | CSF_TRUE)));
+ else if (ea.cmdidx == CMD_finally)
+ skip = FALSE;
+ else if (ea.cmdidx != CMD_endif
+ && ea.cmdidx != CMD_endfor
+ && ea.cmdidx != CMD_endtry
+ && ea.cmdidx != CMD_endwhile)
+ skip = ea.skip;
+
+ if (!skip)
+ {
+ if (getline_equal(fgetline, cookie, get_func_line))
+ func_line_exec(getline_cookie(fgetline, cookie));
+ else if (getline_equal(fgetline, cookie, getsourceline))
+ script_line_exec();
+ }
+ }
+# endif
+#endif
+
+ ea.cmd = cmd;
+
+#ifdef FEAT_EVAL
+ // May go to debug mode. If this happens and the ">quit" debug command is
+ // used, throw an interrupt exception and skip the next command.
+ dbg_check_breakpoint(&ea);
+ if (!ea.skip && got_int)
+ {
+ ea.skip = TRUE;
+ (void)do_intthrow(cstack);
+ }
+#endif
+
+/*
+ * 4. parse a range specifier of the form: addr [,addr] [;addr] ..
+ *
+ * where 'addr' is:
+ *
+ * % (entire file)
+ * $ [+-NUM]
+ * 'x [+-NUM] (where x denotes a currently defined mark)
+ * . [+-NUM]
+ * [+-NUM]..
+ * NUM
+ *
+ * The ea.cmd pointer is updated to point to the first character following the
+ * range spec. If an initial address is found, but no second, the upper bound
+ * is equal to the lower.
+ */
+
+ // ea.addr_type for user commands is set by find_ucmd
+ if (!IS_USER_CMDIDX(ea.cmdidx))
+ {
+ if (ea.cmdidx != CMD_SIZE)
+ ea.addr_type = cmdnames[(int)ea.cmdidx].cmd_addr_type;
+ else
+ ea.addr_type = ADDR_LINES;
+
+ // :wincmd range depends on the argument.
+ if (ea.cmdidx == CMD_wincmd && p != NULL)
+ get_wincmd_addr_type(skipwhite(p), &ea);
+#ifdef FEAT_QUICKFIX
+ // :.cc in quickfix window uses line number
+ if ((ea.cmdidx == CMD_cc || ea.cmdidx == CMD_ll) && bt_quickfix(curbuf))
+ ea.addr_type = ADDR_OTHER;
+#endif
+ }
+
+ if (!may_have_range)
+ ea.line1 = ea.line2 = default_address(&ea);
+ else if (parse_cmd_address(&ea, &errormsg, FALSE) == FAIL)
+ goto doend;
+
+/*
+ * 5. Parse the command.
+ */
+
+ /*
+ * Skip ':' and any white space
+ */
+ ea.cmd = skipwhite(ea.cmd);
+ while (*ea.cmd == ':')
+ ea.cmd = skipwhite(ea.cmd + 1);
+
+ /*
+ * If we got a line, but no command, then go to the line.
+ * If we find a '|' or '\n' we set ea.nextcmd.
+ */
+ if (*ea.cmd == NUL || comment_start(ea.cmd, starts_with_colon)
+ || (ea.nextcmd = check_nextcmd(ea.cmd)) != NULL)
+ {
+ /*
+ * strange vi behaviour:
+ * ":3" jumps to line 3
+ * ":3|..." prints line 3 (not in Vim9 script)
+ * ":|" prints current line (not in Vim9 script)
+ */
+ if (ea.skip) // skip this if inside :if
+ goto doend;
+ errormsg = ex_range_without_command(&ea);
+ goto doend;
+ }
+
+ // If this looks like an undefined user command and there are CmdUndefined
+ // autocommands defined, trigger the matching autocommands.
+ if (p != NULL && ea.cmdidx == CMD_SIZE && !ea.skip
+ && ASCII_ISUPPER(*ea.cmd)
+ && has_cmdundefined())
+ {
+ int ret;
+
+ p = ea.cmd;
+ while (ASCII_ISALNUM(*p))
+ ++p;
+ p = vim_strnsave(ea.cmd, p - ea.cmd);
+ ret = apply_autocmds(EVENT_CMDUNDEFINED, p, p, TRUE, NULL);
+ vim_free(p);
+ // If the autocommands did something and didn't cause an error, try
+ // finding the command again.
+ p = (ret
+#ifdef FEAT_EVAL
+ && !aborting()
+#endif
+ ) ? find_ex_command(&ea, NULL, NULL, NULL) : ea.cmd;
+ }
+
+ if (p == NULL)
+ {
+ if (!ea.skip)
+ errormsg = _(e_ambiguous_use_of_user_defined_command);
+ goto doend;
+ }
+ // Check for wrong commands.
+ if (*p == '!' && ea.cmd[1] == 0151 && ea.cmd[0] == 78
+ && !IS_USER_CMDIDX(ea.cmdidx))
+ {
+ errormsg = uc_fun_cmd();
+ goto doend;
+ }
+
+ if (ea.cmdidx == CMD_SIZE)
+ {
+ if (!ea.skip)
+ {
+ STRCPY(IObuff, _(e_not_an_editor_command));
+ if (!sourcing)
+ {
+ // If the modifier was parsed OK the error must be in the
+ // following command
+ if (after_modifier != NULL)
+ append_command(after_modifier);
+ else
+ append_command(*cmdlinep);
+ did_append_cmd = TRUE;
+ }
+ errormsg = (char *)IObuff;
+ did_emsg_syntax = TRUE;
+ }
+ goto doend;
+ }
+
+ ni = (!IS_USER_CMDIDX(ea.cmdidx)
+ && (cmdnames[ea.cmdidx].cmd_func == ex_ni
+#ifdef HAVE_EX_SCRIPT_NI
+ || cmdnames[ea.cmdidx].cmd_func == ex_script_ni
+#endif
+ ));
+
+#ifndef FEAT_EVAL
+ /*
+ * When the expression evaluation is disabled, recognize the ":if" and
+ * ":endif" commands and ignore everything in between it.
+ */
+ if (ea.cmdidx == CMD_if)
+ ++if_level;
+ if (if_level)
+ {
+ if (ea.cmdidx == CMD_endif)
+ --if_level;
+ goto doend;
+ }
+
+#endif
+
+ // forced commands
+ if (*p == '!' && ea.cmdidx != CMD_substitute
+ && ea.cmdidx != CMD_smagic && ea.cmdidx != CMD_snomagic)
+ {
+ ++p;
+ ea.forceit = TRUE;
+ }
+ else
+ ea.forceit = FALSE;
+
+/*
+ * 6. Parse arguments. Then check for errors.
+ */
+ if (!IS_USER_CMDIDX(ea.cmdidx))
+ ea.argt = (long)cmdnames[(int)ea.cmdidx].cmd_argt;
+
+ if (!ea.skip)
+ {
+#ifdef HAVE_SANDBOX
+ if (sandbox != 0 && !(ea.argt & EX_SBOXOK))
+ {
+ // Command not allowed in sandbox.
+ errormsg = _(e_not_allowed_in_sandbox);
+ goto doend;
+ }
+#endif
+ if (restricted != 0 && (ea.argt & EX_RESTRICT))
+ {
+ errormsg = _(e_command_not_allowed_in_rvim);
+ goto doend;
+ }
+ if (!curbuf->b_p_ma && (ea.argt & EX_MODIFY))
+ {
+ // Command not allowed in non-'modifiable' buffer
+ errormsg = _(e_cannot_make_changes_modifiable_is_off);
+ goto doend;
+ }
+
+ if (!IS_USER_CMDIDX(ea.cmdidx))
+ {
+ if (cmdwin_type != 0 && !(ea.argt & EX_CMDWIN))
+ {
+ // Command not allowed in the command line window
+ errormsg = _(e_invalid_in_cmdline_window);
+ goto doend;
+ }
+ if (text_locked() && !(ea.argt & EX_LOCK_OK))
+ {
+ // Command not allowed when text is locked
+ errormsg = _(get_text_locked_msg());
+ goto doend;
+ }
+ }
+
+ // Disallow editing another buffer when "curbuf_lock" is set.
+ // Do allow ":checktime" (it is postponed).
+ // Do allow ":edit" (check for an argument later).
+ // Do allow ":file" with no arguments (check for an argument later).
+ if (!(ea.argt & (EX_CMDWIN | EX_LOCK_OK))
+ && ea.cmdidx != CMD_checktime
+ && ea.cmdidx != CMD_edit
+ && ea.cmdidx != CMD_file
+ && !IS_USER_CMDIDX(ea.cmdidx)
+ && curbuf_locked())
+ goto doend;
+
+ if (!ni && !(ea.argt & EX_RANGE) && ea.addr_count > 0)
+ {
+ errormsg = _(e_no_range_allowed);
+ goto doend;
+ }
+ }
+
+ if (!ni && !(ea.argt & EX_BANG) && ea.forceit)
+ {
+ errormsg = _(e_no_bang_allowed);
+ goto doend;
+ }
+
+ /*
+ * Don't complain about the range if it is not used
+ * (could happen if line_count is accidentally set to 0).
+ */
+ if (!ea.skip && !ni && (ea.argt & EX_RANGE))
+ {
+ /*
+ * If the range is backwards, ask for confirmation and, if given, swap
+ * ea.line1 & ea.line2 so it's forwards again.
+ * When global command is busy, don't ask, will fail below.
+ */
+ if (!global_busy && ea.line1 > ea.line2)
+ {
+ if (msg_silent == 0)
+ {
+ if (sourcing || exmode_active)
+ {
+ errormsg = _(e_backwards_range_given);
+ goto doend;
+ }
+ if (ask_yesno((char_u *)
+ _("Backwards range given, OK to swap"), FALSE) != 'y')
+ goto doend;
+ }
+ lnum = ea.line1;
+ ea.line1 = ea.line2;
+ ea.line2 = lnum;
+ }
+ if ((errormsg = invalid_range(&ea)) != NULL)
+ goto doend;
+ }
+
+ if ((ea.addr_type == ADDR_OTHER) && ea.addr_count == 0)
+ // default is 1, not cursor
+ ea.line2 = 1;
+
+ correct_range(&ea);
+
+#ifdef FEAT_FOLDING
+ if (((ea.argt & EX_WHOLEFOLD) || ea.addr_count >= 2) && !global_busy
+ && ea.addr_type == ADDR_LINES)
+ {
+ // Put the first line at the start of a closed fold, put the last line
+ // at the end of a closed fold.
+ (void)hasFolding(ea.line1, &ea.line1, NULL);
+ (void)hasFolding(ea.line2, NULL, &ea.line2);
+ }
+#endif
+
+#ifdef FEAT_QUICKFIX
+ /*
+ * For the ":make" and ":grep" commands we insert the 'makeprg'/'grepprg'
+ * option here, so things like % get expanded.
+ */
+ p = replace_makeprg(&ea, p, cmdlinep);
+ if (p == NULL)
+ goto doend;
+#endif
+
+ /*
+ * Skip to start of argument.
+ * Don't do this for the ":!" command, because ":!! -l" needs the space.
+ */
+ if (ea.cmdidx == CMD_bang)
+ ea.arg = p;
+ else
+ ea.arg = skipwhite(p);
+
+ // ":file" cannot be run with an argument when "curbuf_lock" is set
+ if (ea.cmdidx == CMD_file && *ea.arg != NUL && curbuf_locked())
+ goto doend;
+
+ /*
+ * Check for "++opt=val" argument.
+ * Must be first, allow ":w ++enc=utf8 !cmd"
+ */
+ if (ea.argt & EX_ARGOPT)
+ while (ea.arg[0] == '+' && ea.arg[1] == '+')
+ if (getargopt(&ea) == FAIL && !ni)
+ {
+ errormsg = _(e_invalid_argument);
+ goto doend;
+ }
+
+ if (ea.cmdidx == CMD_write || ea.cmdidx == CMD_update)
+ {
+ if (*ea.arg == '>') // append
+ {
+ if (*++ea.arg != '>') // typed wrong
+ {
+ errormsg = _(e_use_w_or_w_gt_gt);
+ goto doend;
+ }
+ ea.arg = skipwhite(ea.arg + 1);
+ ea.append = TRUE;
+ }
+ else if (*ea.arg == '!' && ea.cmdidx == CMD_write) // :w !filter
+ {
+ ++ea.arg;
+ ea.usefilter = TRUE;
+ }
+ }
+
+ if (ea.cmdidx == CMD_read)
+ {
+ if (ea.forceit)
+ {
+ ea.usefilter = TRUE; // :r! filter if ea.forceit
+ ea.forceit = FALSE;
+ }
+ else if (*ea.arg == '!') // :r !filter
+ {
+ ++ea.arg;
+ ea.usefilter = TRUE;
+ }
+ }
+
+ if (ea.cmdidx == CMD_lshift || ea.cmdidx == CMD_rshift)
+ {
+ ea.amount = 1;
+ while (*ea.arg == *ea.cmd) // count number of '>' or '<'
+ {
+ ++ea.arg;
+ ++ea.amount;
+ }
+ ea.arg = skipwhite(ea.arg);
+ }
+
+ /*
+ * Check for "+command" argument, before checking for next command.
+ * Don't do this for ":read !cmd" and ":write !cmd".
+ */
+ if ((ea.argt & EX_CMDARG) && !ea.usefilter)
+ ea.do_ecmd_cmd = getargcmd(&ea.arg);
+
+ /*
+ * For commands that do not use '|' inside their argument: Check for '|' to
+ * separate commands and '"' or '#' to start comments.
+ *
+ * Otherwise: Check for <newline> to end a shell command.
+ * Also do this for ":read !cmd", ":write !cmd" and ":global".
+ * Also do this inside a { - } block after :command and :autocmd.
+ * Any others?
+ */
+ if ((ea.argt & EX_TRLBAR) && !ea.usefilter)
+ {
+ separate_nextcmd(&ea, FALSE);
+ }
+ else if (ea.cmdidx == CMD_bang
+ || ea.cmdidx == CMD_terminal
+ || ea.cmdidx == CMD_global
+ || ea.cmdidx == CMD_vglobal
+ || ea.usefilter
+#ifdef FEAT_EVAL
+ || inside_block(&ea)
+#endif
+ )
+ {
+ for (p = ea.arg; *p; ++p)
+ {
+ // Remove one backslash before a newline, so that it's possible to
+ // pass a newline to the shell and also a newline that is preceded
+ // with a backslash. This makes it impossible to end a shell
+ // command in a backslash, but that doesn't appear useful.
+ // Halving the number of backslashes is incompatible with previous
+ // versions.
+ if (*p == '\\' && p[1] == '\n')
+ STRMOVE(p, p + 1);
+ else if (*p == '\n' && !(ea.argt & EX_EXPR_ARG))
+ {
+ ea.nextcmd = p + 1;
+ *p = NUL;
+ break;
+ }
+ }
+ }
+
+ if ((ea.argt & EX_DFLALL) && ea.addr_count == 0)
+ address_default_all(&ea);
+
+ // accept numbered register only when no count allowed (:put)
+ if ( (ea.argt & EX_REGSTR)
+ && *ea.arg != NUL
+ // Do not allow register = for user commands
+ && (!IS_USER_CMDIDX(ea.cmdidx) || *ea.arg != '=')
+ && !((ea.argt & EX_COUNT) && VIM_ISDIGIT(*ea.arg)))
+ {
+#ifndef FEAT_CLIPBOARD
+ // check these explicitly for a more specific error message
+ if (*ea.arg == '*' || *ea.arg == '+')
+ {
+ errormsg = _(e_invalid_register_name);
+ goto doend;
+ }
+#endif
+ if (valid_yank_reg(*ea.arg, (ea.cmdidx != CMD_put
+ && !IS_USER_CMDIDX(ea.cmdidx))))
+ {
+ ea.regname = *ea.arg++;
+#ifdef FEAT_EVAL
+ // for '=' register: accept the rest of the line as an expression
+ if (ea.arg[-1] == '=' && ea.arg[0] != NUL)
+ {
+ if (!ea.skip)
+ {
+ set_expr_line(vim_strsave(ea.arg), &ea);
+ did_set_expr_line = TRUE;
+ }
+ ea.arg += STRLEN(ea.arg);
+ }
+#endif
+ ea.arg = skipwhite(ea.arg);
+ }
+ }
+
+ /*
+ * Check for a count. When accepting a EX_BUFNAME, don't use "123foo" as a
+ * count, it's a buffer name.
+ */
+ if ((ea.argt & EX_COUNT) && VIM_ISDIGIT(*ea.arg)
+ && (!(ea.argt & EX_BUFNAME) || *(p = skipdigits(ea.arg + 1)) == NUL
+ || VIM_ISWHITE(*p)))
+ {
+ n = getdigits_quoted(&ea.arg);
+ ea.arg = skipwhite(ea.arg);
+ if (n <= 0 && !ni && (ea.argt & EX_ZEROR) == 0)
+ {
+ errormsg = _(e_positive_count_required);
+ goto doend;
+ }
+ if (ea.addr_type != ADDR_LINES) // e.g. :buffer 2, :sleep 3
+ {
+ ea.line2 = n;
+ if (ea.addr_count == 0)
+ ea.addr_count = 1;
+ }
+ else
+ {
+ ea.line1 = ea.line2;
+ if (ea.line2 >= LONG_MAX - (n - 1))
+ ea.line2 = LONG_MAX; // avoid overflow
+ else
+ ea.line2 += n - 1;
+ ++ea.addr_count;
+ /*
+ * Be vi compatible: no error message for out of range.
+ */
+ if (ea.line2 > curbuf->b_ml.ml_line_count)
+ ea.line2 = curbuf->b_ml.ml_line_count;
+ }
+ }
+
+ /*
+ * Check for flags: 'l', 'p' and '#'.
+ */
+ if (ea.argt & EX_FLAGS)
+ get_flags(&ea);
+ if (!ni && !(ea.argt & EX_EXTRA) && *ea.arg != NUL
+ && *ea.arg != '"' && (*ea.arg != '|' || (ea.argt & EX_TRLBAR) == 0))
+ {
+ // no arguments allowed but there is something
+ errormsg = ex_errmsg(e_trailing_characters_str, ea.arg);
+ goto doend;
+ }
+
+ if (!ni && (ea.argt & EX_NEEDARG) && *ea.arg == NUL)
+ {
+ errormsg = _(e_argument_required);
+ goto doend;
+ }
+
+#ifdef FEAT_EVAL
+ /*
+ * Skip the command when it's not going to be executed.
+ * The commands like :if, :endif, etc. always need to be executed.
+ * Also make an exception for commands that handle a trailing command
+ * themselves.
+ */
+ if (ea.skip)
+ {
+ switch (ea.cmdidx)
+ {
+ // commands that need evaluation
+ case CMD_while:
+ case CMD_endwhile:
+ case CMD_for:
+ case CMD_endfor:
+ case CMD_if:
+ case CMD_elseif:
+ case CMD_else:
+ case CMD_endif:
+ case CMD_try:
+ case CMD_catch:
+ case CMD_finally:
+ case CMD_endtry:
+ case CMD_function:
+ case CMD_def:
+ break;
+
+ // Commands that handle '|' themselves. Check: A command should
+ // either have the EX_TRLBAR flag, appear in this list or appear in
+ // the list at ":help :bar".
+ case CMD_aboveleft:
+ case CMD_and:
+ case CMD_belowright:
+ case CMD_botright:
+ case CMD_browse:
+ case CMD_call:
+ case CMD_confirm:
+ case CMD_const:
+ case CMD_delfunction:
+ case CMD_djump:
+ case CMD_dlist:
+ case CMD_dsearch:
+ case CMD_dsplit:
+ case CMD_echo:
+ case CMD_echoerr:
+ case CMD_echomsg:
+ case CMD_echon:
+ case CMD_eval:
+ case CMD_execute:
+ case CMD_filter:
+ case CMD_final:
+ case CMD_help:
+ case CMD_hide:
+ case CMD_horizontal:
+ case CMD_ijump:
+ case CMD_ilist:
+ case CMD_isearch:
+ case CMD_isplit:
+ case CMD_keepalt:
+ case CMD_keepjumps:
+ case CMD_keepmarks:
+ case CMD_keeppatterns:
+ case CMD_leftabove:
+ case CMD_let:
+ case CMD_lockmarks:
+ case CMD_lockvar:
+ case CMD_lua:
+ case CMD_match:
+ case CMD_mzscheme:
+ case CMD_noautocmd:
+ case CMD_noswapfile:
+ case CMD_perl:
+ case CMD_psearch:
+ case CMD_py3:
+ case CMD_python3:
+ case CMD_python:
+ case CMD_return:
+ case CMD_rightbelow:
+ case CMD_ruby:
+ case CMD_silent:
+ case CMD_smagic:
+ case CMD_snomagic:
+ case CMD_substitute:
+ case CMD_syntax:
+ case CMD_tab:
+ case CMD_tcl:
+ case CMD_throw:
+ case CMD_tilde:
+ case CMD_topleft:
+ case CMD_unlet:
+ case CMD_unlockvar:
+ case CMD_var:
+ case CMD_verbose:
+ case CMD_vertical:
+ case CMD_wincmd:
+ break;
+
+ default: goto doend;
+ }
+ }
+#endif
+
+ if ((ea.argt & EX_XFILE)
+ && expand_filename(&ea, cmdlinep, &errormsg) == FAIL)
+ goto doend;
+
+#ifdef FEAT_EVAL
+ if (is_export && (ea.argt & EX_EXPORT) == 0)
+ {
+ emsg(_(e_invalid_command_after_export));
+ goto doend;
+ }
+#endif
+
+ /*
+ * Accept buffer name. Cannot be used at the same time with a buffer
+ * number. Don't do this for a user command.
+ */
+ if ((ea.argt & EX_BUFNAME) && *ea.arg != NUL && ea.addr_count == 0
+ && !IS_USER_CMDIDX(ea.cmdidx))
+ {
+ /*
+ * :bdelete, :bwipeout and :bunload take several arguments, separated
+ * by spaces: find next space (skipping over escaped characters).
+ * The others take one argument: ignore trailing spaces.
+ */
+ if (ea.cmdidx == CMD_bdelete || ea.cmdidx == CMD_bwipeout
+ || ea.cmdidx == CMD_bunload)
+ p = skiptowhite_esc(ea.arg);
+ else
+ {
+ p = ea.arg + STRLEN(ea.arg);
+ while (p > ea.arg && VIM_ISWHITE(p[-1]))
+ --p;
+ }
+ ea.line2 = buflist_findpat(ea.arg, p, (ea.argt & EX_BUFUNL) != 0,
+ FALSE, FALSE);
+ if (ea.line2 < 0) // failed
+ goto doend;
+ ea.addr_count = 1;
+ ea.arg = skipwhite(p);
+ }
+
+ // The :try command saves the emsg_silent flag, reset it here when
+ // ":silent! try" was used, it should only apply to :try itself.
+ if (ea.cmdidx == CMD_try && cmdmod.cmod_did_esilent > 0)
+ {
+ emsg_silent -= cmdmod.cmod_did_esilent;
+ if (emsg_silent < 0)
+ emsg_silent = 0;
+ cmdmod.cmod_did_esilent = 0;
+ }
+
+/*
+ * 7. Execute the command.
+ */
+
+ if (IS_USER_CMDIDX(ea.cmdidx))
+ {
+ /*
+ * Execute a user-defined command.
+ */
+ do_ucmd(&ea);
+ }
+ else
+ {
+ /*
+ * Call the function to execute the builtin command.
+ */
+ (cmdnames[ea.cmdidx].cmd_func)(&ea);
+ if (ea.errmsg != NULL)
+ errormsg = ea.errmsg;
+ }
+
+#ifdef FEAT_EVAL
+ // A command will reset "is_export" when exporting an item. If it is still
+ // set something went wrong or the command was never executed.
+ if (!ea.skip && is_export)
+ {
+ if (errormsg == NULL)
+ errormsg = _(e_export_with_invalid_argument);
+ is_export = FALSE;
+ }
+
+ // Set flag that any command was executed, used by ex_vim9script().
+ // Not if this was a command that wasn't executed or :endif.
+ if (sourcing_a_script(&ea)
+ && current_sctx.sc_sid > 0
+ && ea.cmdidx != CMD_endif
+ && (cstack->cs_idx < 0
+ || (cstack->cs_flags[cstack->cs_idx] & CSF_ACTIVE)))
+ SCRIPT_ITEM(current_sctx.sc_sid)->sn_state = SN_STATE_HAD_COMMAND;
+
+ /*
+ * If the command just executed called do_cmdline(), any throw or ":return"
+ * or ":finish" encountered there must also check the cstack of the still
+ * active do_cmdline() that called this do_one_cmd(). Rethrow an uncaught
+ * exception, or reanimate a returned function or finished script file and
+ * return or finish it again.
+ */
+ if (need_rethrow)
+ do_throw(cstack);
+ else if (check_cstack)
+ {
+ if (source_finished(fgetline, cookie))
+ do_finish(&ea, TRUE);
+ else if (getline_equal(fgetline, cookie, get_func_line)
+ && current_func_returned())
+ do_return(&ea, TRUE, FALSE, NULL);
+ }
+ need_rethrow = check_cstack = FALSE;
+#endif
+
+doend:
+ if (curwin->w_cursor.lnum == 0) // can happen with zero line number
+ {
+ curwin->w_cursor.lnum = 1;
+ curwin->w_cursor.col = 0;
+ }
+
+ if (errormsg != NULL && *errormsg != NUL && !did_emsg)
+ {
+ if ((sourcing || !KeyTyped) && !did_append_cmd)
+ {
+ if (errormsg != (char *)IObuff)
+ {
+ STRCPY(IObuff, errormsg);
+ errormsg = (char *)IObuff;
+ }
+ append_command(*cmdlinep);
+ }
+ emsg(errormsg);
+ }
+#ifdef FEAT_EVAL
+ do_errthrow(cstack,
+ (ea.cmdidx != CMD_SIZE && !IS_USER_CMDIDX(ea.cmdidx))
+ ? cmdnames[(int)ea.cmdidx].cmd_name : (char_u *)NULL);
+
+ if (did_set_expr_line)
+ set_expr_line(NULL, NULL);
+ is_export = FALSE;
+#endif
+
+ undo_cmdmod(&cmdmod);
+ cmdmod = save_cmdmod;
+ reg_executing = save_reg_executing;
+ pending_end_reg_executing = save_pending_end_reg_executing;
+
+ if (ea.nextcmd && *ea.nextcmd == NUL) // not really a next command
+ ea.nextcmd = NULL;
+
+#ifdef FEAT_EVAL
+ --ex_nesting_level;
+ vim_free(ea.cmdline_tofree);
+#endif
+
+ return ea.nextcmd;
+}
+
+static char ex_error_buf[MSG_BUF_LEN];
+
+/*
+ * Return an error message with argument included.
+ * Uses a static buffer, only the last error will be kept.
+ * "msg" will be translated, caller should use N_().
+ */
+ char *
+ex_errmsg(char *msg, char_u *arg)
+{
+ vim_snprintf(ex_error_buf, MSG_BUF_LEN, _(msg), arg);
+ return ex_error_buf;
+}
+
+/*
+ * Handle a range without a command.
+ * Returns an error message on failure.
+ */
+ char *
+ex_range_without_command(exarg_T *eap)
+{
+ char *errormsg = NULL;
+
+ if ((*eap->cmd == '|' || (exmode_active && eap->line1 != eap->line2))
+#ifdef FEAT_EVAL
+ && !in_vim9script()
+#endif
+ )
+ {
+ eap->cmdidx = CMD_print;
+ eap->argt = EX_RANGE+EX_COUNT+EX_TRLBAR;
+ if ((errormsg = invalid_range(eap)) == NULL)
+ {
+ correct_range(eap);
+ ex_print(eap);
+ }
+ }
+ else if (eap->addr_count != 0)
+ {
+ if (eap->line2 > curbuf->b_ml.ml_line_count)
+ {
+ // With '-' in 'cpoptions' a line number past the file is an
+ // error, otherwise put it at the end of the file.
+ if (vim_strchr(p_cpo, CPO_MINUS) != NULL)
+ eap->line2 = -1;
+ else
+ eap->line2 = curbuf->b_ml.ml_line_count;
+ }
+
+ if (eap->line2 < 0)
+ errormsg = _(e_invalid_range);
+ else
+ {
+ if (eap->line2 == 0)
+ curwin->w_cursor.lnum = 1;
+ else
+ curwin->w_cursor.lnum = eap->line2;
+ beginline(BL_SOL | BL_FIX);
+ }
+ }
+ return errormsg;
+}
+
+/*
+ * Check for an Ex command with optional tail.
+ * If there is a match advance "pp" to the argument and return TRUE.
+ * If "noparen" is TRUE do not recognize the command followed by "(" or ".".
+ */
+ static int
+checkforcmd_opt(
+ char_u **pp, // start of command
+ char *cmd, // name of command
+ int len, // required length
+ int noparen)
+{
+ int i;
+
+ for (i = 0; cmd[i] != NUL; ++i)
+ if (((char_u *)cmd)[i] != (*pp)[i])
+ break;
+ if (i >= len && !ASCII_ISALPHA((*pp)[i]) && (*pp)[i] != '_'
+ && (!noparen || ((*pp)[i] != '(' && (*pp)[i] != '.')))
+ {
+ *pp = skipwhite(*pp + i);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+ * Check for an Ex command with optional tail.
+ * If there is a match advance "pp" to the argument and return TRUE.
+ */
+ int
+checkforcmd(
+ char_u **pp, // start of command
+ char *cmd, // name of command
+ int len) // required length
+{
+ return checkforcmd_opt(pp, cmd, len, FALSE);
+}
+
+/*
+ * Check for an Ex command with optional tail, not followed by "(" or ".".
+ * If there is a match advance "pp" to the argument and return TRUE.
+ */
+ int
+checkforcmd_noparen(
+ char_u **pp, // start of command
+ char *cmd, // name of command
+ int len) // required length
+{
+ return checkforcmd_opt(pp, cmd, len, TRUE);
+}
+
+/*
+ * Parse and skip over command modifiers:
+ * - update eap->cmd
+ * - store flags in "cmod".
+ * - Set ex_pressedreturn for an empty command line.
+ * When "skip_only" is TRUE the global variables are not changed, except for
+ * "cmdmod".
+ * When "skip_only" is FALSE then undo_cmdmod() must be called later to free
+ * any cmod_filter_regmatch.regprog.
+ * Call apply_cmdmod() to get the side effects of the modifiers:
+ * - Increment "sandbox" for ":sandbox"
+ * - set p_verbose for ":verbose"
+ * - set msg_silent for ":silent"
+ * - set 'eventignore' to "all" for ":noautocmd"
+ * Return FAIL when the command is not to be executed.
+ * May set "errormsg" to an error message.
+ */
+ int
+parse_command_modifiers(
+ exarg_T *eap,
+ char **errormsg,
+ cmdmod_T *cmod,
+ int skip_only)
+{
+ char_u *orig_cmd = eap->cmd;
+ char_u *cmd_start = NULL;
+ int use_plus_cmd = FALSE;
+ int starts_with_colon = FALSE;
+ int vim9script = in_vim9script();
+ int has_visual_range = FALSE;
+
+ CLEAR_POINTER(cmod);
+ cmod->cmod_flags = sticky_cmdmod_flags;
+
+ if (STRNCMP(eap->cmd, "'<,'>", 5) == 0)
+ {
+ // The automatically inserted Visual area range is skipped, so that
+ // typing ":cmdmod cmd" in Visual mode works without having to move the
+ // range to after the modififiers. The command will be
+ // "'<,'>cmdmod cmd", parse "cmdmod cmd" and then put back "'<,'>"
+ // before "cmd" below.
+ eap->cmd += 5;
+ cmd_start = eap->cmd;
+ has_visual_range = TRUE;
+ }
+
+ // Repeat until no more command modifiers are found.
+ for (;;)
+ {
+ char_u *p;
+
+ while (*eap->cmd == ' ' || *eap->cmd == '\t' || *eap->cmd == ':')
+ {
+ if (*eap->cmd == ':')
+ starts_with_colon = TRUE;
+ ++eap->cmd;
+ }
+
+ // in ex mode, an empty command (after modifiers) works like :+
+ if (*eap->cmd == NUL && exmode_active
+ && (getline_equal(eap->ea_getline, eap->cookie, getexmodeline)
+ || getline_equal(eap->ea_getline, eap->cookie, getexline))
+ && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
+ {
+ use_plus_cmd = TRUE;
+ if (!skip_only)
+ ex_pressedreturn = TRUE;
+ break; // no modifiers following
+ }
+
+ // ignore comment and empty lines
+ if (comment_start(eap->cmd, starts_with_colon))
+ {
+ // a comment ends at a NL
+ if (eap->nextcmd == NULL)
+ {
+ eap->nextcmd = vim_strchr(eap->cmd, '\n');
+ if (eap->nextcmd != NULL)
+ ++eap->nextcmd;
+ }
+ if (vim9script)
+ {
+ if (has_cmdmod(cmod, FALSE))
+ *errormsg = _(e_command_modifier_without_command);
+#ifdef FEAT_EVAL
+ if (eap->cmd[0] == '#' && eap->cmd[1] == '{'
+ && eap->cmd[2] != '{')
+ *errormsg = _(e_cannot_use_hash_curly_to_start_comment);
+#endif
+ }
+ return FAIL;
+ }
+ if (*eap->cmd == NUL)
+ {
+ if (!skip_only)
+ {
+ ex_pressedreturn = TRUE;
+ if (vim9script && has_cmdmod(cmod, FALSE))
+ *errormsg = _(e_command_modifier_without_command);
+ }
+ return FAIL;
+ }
+
+ p = skip_range(eap->cmd, TRUE, NULL);
+
+ // In Vim9 script a variable can shadow a command modifier:
+ // verbose = 123
+ // verbose += 123
+ // silent! verbose = func()
+ // verbose.member = 2
+ // verbose[expr] = 2
+ // But not:
+ // verbose [a, b] = list
+ if (vim9script)
+ {
+ char_u *s, *n;
+
+ for (s = eap->cmd; ASCII_ISALPHA(*s); ++s)
+ ;
+ n = skipwhite(s);
+ if (*n == '.' || *n == '=' || (*n != NUL && n[1] == '=')
+ || *s == '[')
+ break;
+ }
+
+ switch (*p)
+ {
+ // When adding an entry, also modify cmdmods[].
+ case 'a': if (!checkforcmd_noparen(&eap->cmd, "aboveleft", 3))
+ break;
+ cmod->cmod_split |= WSP_ABOVE;
+ continue;
+
+ case 'b': if (checkforcmd_noparen(&eap->cmd, "belowright", 3))
+ {
+ cmod->cmod_split |= WSP_BELOW;
+ continue;
+ }
+ if (checkforcmd_opt(&eap->cmd, "browse", 3, TRUE))
+ {
+#ifdef FEAT_BROWSE_CMD
+ cmod->cmod_flags |= CMOD_BROWSE;
+#endif
+ continue;
+ }
+ if (!checkforcmd_noparen(&eap->cmd, "botright", 2))
+ break;
+ cmod->cmod_split |= WSP_BOT;
+ continue;
+
+ case 'c': if (!checkforcmd_opt(&eap->cmd, "confirm", 4, TRUE))
+ break;
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+ cmod->cmod_flags |= CMOD_CONFIRM;
+#endif
+ continue;
+
+ case 'k': if (checkforcmd_noparen(&eap->cmd, "keepmarks", 3))
+ {
+ cmod->cmod_flags |= CMOD_KEEPMARKS;
+ continue;
+ }
+ if (checkforcmd_noparen(&eap->cmd, "keepalt", 5))
+ {
+ cmod->cmod_flags |= CMOD_KEEPALT;
+ continue;
+ }
+ if (checkforcmd_noparen(&eap->cmd, "keeppatterns", 5))
+ {
+ cmod->cmod_flags |= CMOD_KEEPPATTERNS;
+ continue;
+ }
+ if (!checkforcmd_noparen(&eap->cmd, "keepjumps", 5))
+ break;
+ cmod->cmod_flags |= CMOD_KEEPJUMPS;
+ continue;
+
+ case 'f': // only accept ":filter {pat} cmd"
+ {
+ char_u *reg_pat;
+ char_u *nulp = NULL;
+ int c = 0;
+
+ if (!checkforcmd_noparen(&p, "filter", 4)
+ || *p == NUL
+ || (ends_excmd(*p)
+#ifdef FEAT_EVAL
+ // in ":filter #pat# cmd" # does not
+ // start a comment
+ && (!vim9script || VIM_ISWHITE(p[1]))
+#endif
+ ))
+ break;
+ if (*p == '!')
+ {
+ cmod->cmod_filter_force = TRUE;
+ p = skipwhite(p + 1);
+ if (*p == NUL || ends_excmd(*p))
+ break;
+ }
+#ifdef FEAT_EVAL
+ // Avoid that "filter(arg)" is recognized.
+ if (vim9script && !VIM_ISWHITE(p[-1]))
+ break;
+#endif
+ if (skip_only)
+ p = skip_vimgrep_pat(p, NULL, NULL);
+ else
+ // NOTE: This puts a NUL after the pattern.
+ p = skip_vimgrep_pat_ext(p, &reg_pat, NULL,
+ &nulp, &c);
+ if (p == NULL || *p == NUL)
+ break;
+ if (!skip_only)
+ {
+ cmod->cmod_filter_regmatch.regprog =
+ vim_regcomp(reg_pat, RE_MAGIC);
+ if (cmod->cmod_filter_regmatch.regprog == NULL)
+ break;
+ // restore the character overwritten by NUL
+ if (nulp != NULL)
+ *nulp = c;
+ }
+ eap->cmd = p;
+ continue;
+ }
+
+ case 'h': if (checkforcmd_noparen(&eap->cmd, "horizontal", 3))
+ {
+ cmod->cmod_split |= WSP_HOR;
+ continue;
+ }
+ // ":hide" and ":hide | cmd" are not modifiers
+ if (p != eap->cmd || !checkforcmd_noparen(&p, "hide", 3)
+ || *p == NUL || ends_excmd(*p))
+ break;
+ eap->cmd = p;
+ cmod->cmod_flags |= CMOD_HIDE;
+ continue;
+
+ case 'l': if (checkforcmd_noparen(&eap->cmd, "lockmarks", 3))
+ {
+ cmod->cmod_flags |= CMOD_LOCKMARKS;
+ continue;
+ }
+ if (checkforcmd_noparen(&eap->cmd, "legacy", 3))
+ {
+ if (ends_excmd2(p, eap->cmd))
+ {
+ *errormsg =
+ _(e_legacy_must_be_followed_by_command);
+ return FAIL;
+ }
+ cmod->cmod_flags |= CMOD_LEGACY;
+ continue;
+ }
+
+ if (!checkforcmd_noparen(&eap->cmd, "leftabove", 5))
+ break;
+ cmod->cmod_split |= WSP_ABOVE;
+ continue;
+
+ case 'n': if (checkforcmd_noparen(&eap->cmd, "noautocmd", 3))
+ {
+ cmod->cmod_flags |= CMOD_NOAUTOCMD;
+ continue;
+ }
+ if (!checkforcmd_noparen(&eap->cmd, "noswapfile", 3))
+ break;
+ cmod->cmod_flags |= CMOD_NOSWAPFILE;
+ continue;
+
+ case 'r': if (!checkforcmd_noparen(&eap->cmd, "rightbelow", 6))
+ break;
+ cmod->cmod_split |= WSP_BELOW;
+ continue;
+
+ case 's': if (checkforcmd_noparen(&eap->cmd, "sandbox", 3))
+ {
+ cmod->cmod_flags |= CMOD_SANDBOX;
+ continue;
+ }
+ if (!checkforcmd_noparen(&eap->cmd, "silent", 3))
+ break;
+ cmod->cmod_flags |= CMOD_SILENT;
+ if (*eap->cmd == '!' && !VIM_ISWHITE(eap->cmd[-1]))
+ {
+ // ":silent!", but not "silent !cmd"
+ eap->cmd = skipwhite(eap->cmd + 1);
+ cmod->cmod_flags |= CMOD_ERRSILENT;
+ }
+ continue;
+
+ case 't': if (checkforcmd_noparen(&p, "tab", 3))
+ {
+ if (!skip_only)
+ {
+ long tabnr = get_address(eap, &eap->cmd,
+ ADDR_TABS, eap->skip,
+ skip_only, FALSE, 1);
+ if (tabnr == MAXLNUM)
+ cmod->cmod_tab = tabpage_index(curtab) + 1;
+ else
+ {
+ if (tabnr < 0 || tabnr > LAST_TAB_NR)
+ {
+ *errormsg = _(e_invalid_range);
+ return FAIL;
+ }
+ cmod->cmod_tab = tabnr + 1;
+ }
+ }
+ eap->cmd = p;
+ continue;
+ }
+ if (!checkforcmd_noparen(&eap->cmd, "topleft", 2))
+ break;
+ cmod->cmod_split |= WSP_TOP;
+ continue;
+
+ case 'u': if (!checkforcmd_noparen(&eap->cmd, "unsilent", 3))
+ break;
+ cmod->cmod_flags |= CMOD_UNSILENT;
+ continue;
+
+ case 'v': if (checkforcmd_noparen(&eap->cmd, "vertical", 4))
+ {
+ cmod->cmod_split |= WSP_VERT;
+ continue;
+ }
+ if (checkforcmd_noparen(&eap->cmd, "vim9cmd", 4))
+ {
+ if (ends_excmd2(p, eap->cmd))
+ {
+ *errormsg =
+ _(e_vim9cmd_must_be_followed_by_command);
+ return FAIL;
+ }
+ cmod->cmod_flags |= CMOD_VIM9CMD;
+ continue;
+ }
+ if (!checkforcmd_noparen(&p, "verbose", 4))
+ break;
+ if (vim_isdigit(*eap->cmd))
+ {
+ // zero means not set, one is verbose == 0, etc.
+ cmod->cmod_verbose = atoi((char *)eap->cmd) + 1;
+ }
+ else
+ cmod->cmod_verbose = 2; // default: verbose == 1
+ eap->cmd = p;
+ continue;
+ }
+ break;
+ }
+
+ if (has_visual_range)
+ {
+ if (eap->cmd > cmd_start)
+ {
+ // Move the '<,'> range to after the modifiers and insert a colon.
+ // Since the modifiers have been parsed put the colon on top of the
+ // space: "'<,'>mod cmd" -> "mod:'<,'>cmd
+ // Put eap->cmd after the colon.
+ if (use_plus_cmd)
+ {
+ size_t len = STRLEN(cmd_start);
+
+ // Special case: empty command uses "+":
+ // "'<,'>mods" -> "mods *+
+ // Use "*" instead of "'<,'>" to avoid the command getting
+ // longer, in case it was allocated.
+ mch_memmove(orig_cmd, cmd_start, len);
+ STRCPY(orig_cmd + len, " *+");
+ }
+ else
+ {
+ mch_memmove(cmd_start - 5, cmd_start, eap->cmd - cmd_start);
+ eap->cmd -= 5;
+ mch_memmove(eap->cmd - 1, ":'<,'>", 6);
+ }
+ }
+ else
+ // No modifiers, move the pointer back.
+ // Special case: change empty command to "+".
+ if (use_plus_cmd)
+ eap->cmd = (char_u *)"'<,'>+";
+ else
+ eap->cmd = orig_cmd;
+ }
+ else if (use_plus_cmd)
+ eap->cmd = (char_u *)"+";
+
+ return OK;
+}
+
+/*
+ * Return TRUE if "cmod" has anything set.
+ */
+ int
+has_cmdmod(cmdmod_T *cmod, int ignore_silent)
+{
+ return (cmod->cmod_flags != 0 && (!ignore_silent
+ || (cmod->cmod_flags
+ & ~(CMOD_SILENT | CMOD_ERRSILENT | CMOD_UNSILENT)) != 0))
+ || cmod->cmod_split != 0
+ || cmod->cmod_verbose > 0
+ || cmod->cmod_tab != 0
+ || cmod->cmod_filter_regmatch.regprog != NULL;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * If Vim9 script and "cmdmod" has anything set give an error and return TRUE.
+ */
+ int
+cmdmod_error(int ignore_silent)
+{
+ if (in_vim9script() && has_cmdmod(&cmdmod, ignore_silent))
+ {
+ emsg(_(e_misplaced_command_modifier));
+ return TRUE;
+ }
+ return FALSE;
+}
+#endif
+
+/*
+ * Apply the command modifiers. Saves current state in "cmdmod", call
+ * undo_cmdmod() later.
+ */
+ void
+apply_cmdmod(cmdmod_T *cmod)
+{
+#ifdef HAVE_SANDBOX
+ if ((cmod->cmod_flags & CMOD_SANDBOX) && !cmod->cmod_did_sandbox)
+ {
+ ++sandbox;
+ cmod->cmod_did_sandbox = TRUE;
+ }
+#endif
+ if (cmod->cmod_verbose > 0)
+ {
+ if (cmod->cmod_verbose_save == 0)
+ cmod->cmod_verbose_save = p_verbose + 1;
+ p_verbose = cmod->cmod_verbose - 1;
+ }
+
+ if ((cmod->cmod_flags & (CMOD_SILENT | CMOD_UNSILENT))
+ && cmod->cmod_save_msg_silent == 0)
+ {
+ cmod->cmod_save_msg_silent = msg_silent + 1;
+ cmod->cmod_save_msg_scroll = msg_scroll;
+ }
+ if (cmod->cmod_flags & CMOD_SILENT)
+ ++msg_silent;
+ if (cmod->cmod_flags & CMOD_UNSILENT)
+ msg_silent = 0;
+
+ if (cmod->cmod_flags & CMOD_ERRSILENT)
+ {
+ ++emsg_silent;
+ ++cmod->cmod_did_esilent;
+ }
+
+ if ((cmod->cmod_flags & CMOD_NOAUTOCMD) && cmod->cmod_save_ei == NULL)
+ {
+ // Set 'eventignore' to "all".
+ // First save the existing option value for restoring it later.
+ cmod->cmod_save_ei = vim_strsave(p_ei);
+ set_string_option_direct((char_u *)"ei", -1,
+ (char_u *)"all", OPT_FREE, SID_NONE);
+ }
+}
+
+/*
+ * Undo and free contents of "cmod".
+ */
+ void
+undo_cmdmod(cmdmod_T *cmod)
+{
+ if (cmod->cmod_verbose_save > 0)
+ {
+ p_verbose = cmod->cmod_verbose_save - 1;
+ cmod->cmod_verbose_save = 0;
+ }
+
+#ifdef HAVE_SANDBOX
+ if (cmod->cmod_did_sandbox)
+ {
+ --sandbox;
+ cmod->cmod_did_sandbox = FALSE;
+ }
+#endif
+
+ if (cmod->cmod_save_ei != NULL)
+ {
+ // Restore 'eventignore' to the value before ":noautocmd".
+ set_string_option_direct((char_u *)"ei", -1, cmod->cmod_save_ei,
+ OPT_FREE, SID_NONE);
+ free_string_option(cmod->cmod_save_ei);
+ cmod->cmod_save_ei = NULL;
+ }
+
+ vim_regfree(cmod->cmod_filter_regmatch.regprog);
+
+ if (cmod->cmod_save_msg_silent > 0)
+ {
+ // messages could be enabled for a serious error, need to check if the
+ // counters don't become negative
+ if (!did_emsg || msg_silent > cmod->cmod_save_msg_silent - 1)
+ msg_silent = cmod->cmod_save_msg_silent - 1;
+ emsg_silent -= cmod->cmod_did_esilent;
+ if (emsg_silent < 0)
+ emsg_silent = 0;
+ // Restore msg_scroll, it's set by file I/O commands, even when no
+ // message is actually displayed.
+ msg_scroll = cmod->cmod_save_msg_scroll;
+
+ // "silent reg" or "silent echo x" inside "redir" leaves msg_col
+ // somewhere in the line. Put it back in the first column.
+ if (redirecting())
+ msg_col = 0;
+
+ cmod->cmod_save_msg_silent = 0;
+ cmod->cmod_did_esilent = 0;
+ }
+}
+
+/*
+ * Parse the address range, if any, in "eap".
+ * May set the last search pattern, unless "silent" is TRUE.
+ * Return FAIL and set "errormsg" or return OK.
+ */
+ int
+parse_cmd_address(exarg_T *eap, char **errormsg, int silent)
+{
+ int address_count = 1;
+ linenr_T lnum;
+ int need_check_cursor = FALSE;
+ int ret = FAIL;
+
+ // Repeat for all ',' or ';' separated addresses.
+ for (;;)
+ {
+ eap->line1 = eap->line2;
+ eap->line2 = default_address(eap);
+ eap->cmd = skipwhite(eap->cmd);
+ lnum = get_address(eap, &eap->cmd, eap->addr_type, eap->skip, silent,
+ eap->addr_count == 0, address_count++);
+ if (eap->cmd == NULL) // error detected
+ goto theend;
+ if (lnum == MAXLNUM)
+ {
+ if (*eap->cmd == '%') // '%' - all lines
+ {
+ ++eap->cmd;
+ switch (eap->addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ eap->line1 = 1;
+ eap->line2 = curbuf->b_ml.ml_line_count;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ {
+ buf_T *buf = firstbuf;
+
+ while (buf->b_next != NULL
+ && buf->b_ml.ml_mfp == NULL)
+ buf = buf->b_next;
+ eap->line1 = buf->b_fnum;
+ buf = lastbuf;
+ while (buf->b_prev != NULL
+ && buf->b_ml.ml_mfp == NULL)
+ buf = buf->b_prev;
+ eap->line2 = buf->b_fnum;
+ break;
+ }
+ case ADDR_BUFFERS:
+ eap->line1 = firstbuf->b_fnum;
+ eap->line2 = lastbuf->b_fnum;
+ break;
+ case ADDR_WINDOWS:
+ case ADDR_TABS:
+ if (IS_USER_CMDIDX(eap->cmdidx))
+ {
+ eap->line1 = 1;
+ eap->line2 = eap->addr_type == ADDR_WINDOWS
+ ? LAST_WIN_NR : LAST_TAB_NR;
+ }
+ else
+ {
+ // there is no Vim command which uses '%' and
+ // ADDR_WINDOWS or ADDR_TABS
+ *errormsg = _(e_invalid_range);
+ goto theend;
+ }
+ break;
+ case ADDR_TABS_RELATIVE:
+ case ADDR_UNSIGNED:
+ case ADDR_QUICKFIX:
+ *errormsg = _(e_invalid_range);
+ goto theend;
+ case ADDR_ARGUMENTS:
+ if (ARGCOUNT == 0)
+ eap->line1 = eap->line2 = 0;
+ else
+ {
+ eap->line1 = 1;
+ eap->line2 = ARGCOUNT;
+ }
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ eap->line1 = 1;
+ eap->line2 = qf_get_valid_size(eap);
+ if (eap->line2 == 0)
+ eap->line2 = 1;
+#endif
+ break;
+ case ADDR_NONE:
+ // Will give an error later if a range is found.
+ break;
+ }
+ ++eap->addr_count;
+ }
+ else if (*eap->cmd == '*' && vim_strchr(p_cpo, CPO_STAR) == NULL)
+ {
+ pos_T *fp;
+
+ // '*' - visual area
+ if (eap->addr_type != ADDR_LINES)
+ {
+ *errormsg = _(e_invalid_range);
+ goto theend;
+ }
+
+ ++eap->cmd;
+ if (!eap->skip)
+ {
+ fp = getmark('<', FALSE);
+ if (check_mark(fp) == FAIL)
+ goto theend;
+ eap->line1 = fp->lnum;
+ fp = getmark('>', FALSE);
+ if (check_mark(fp) == FAIL)
+ goto theend;
+ eap->line2 = fp->lnum;
+ ++eap->addr_count;
+ }
+ }
+ }
+ else
+ eap->line2 = lnum;
+ eap->addr_count++;
+
+ if (*eap->cmd == ';')
+ {
+ if (!eap->skip)
+ {
+ curwin->w_cursor.lnum = eap->line2;
+
+ // Don't leave the cursor on an illegal line or column, but do
+ // accept zero as address, so 0;/PATTERN/ works correctly
+ // (where zero usually means to use the first line).
+ // Check the cursor position before returning.
+ if (eap->line2 > 0)
+ check_cursor();
+ else
+ check_cursor_col();
+ need_check_cursor = TRUE;
+ }
+ }
+ else if (*eap->cmd != ',')
+ break;
+ ++eap->cmd;
+ }
+
+ // One address given: set start and end lines.
+ if (eap->addr_count == 1)
+ {
+ eap->line1 = eap->line2;
+ // ... but only implicit: really no address given
+ if (lnum == MAXLNUM)
+ eap->addr_count = 0;
+ }
+ ret = OK;
+
+theend:
+ if (need_check_cursor)
+ check_cursor();
+ return ret;
+}
+
+/*
+ * Append "cmd" to the error message in IObuff.
+ * Takes care of limiting the length and handling 0xa0, which would be
+ * invisible otherwise.
+ */
+ static void
+append_command(char_u *cmd)
+{
+ size_t len = STRLEN(IObuff);
+ char_u *s = cmd;
+ char_u *d;
+
+ if (len > IOSIZE - 100)
+ {
+ // Not enough space, truncate and put in "...".
+ d = IObuff + IOSIZE - 100;
+ d -= mb_head_off(IObuff, d);
+ STRCPY(d, "...");
+ }
+ STRCAT(IObuff, ": ");
+ d = IObuff + STRLEN(IObuff);
+ while (*s != NUL && d - IObuff + 5 < IOSIZE)
+ {
+ if (enc_utf8 ? (s[0] == 0xc2 && s[1] == 0xa0) : *s == 0xa0)
+ {
+ s += enc_utf8 ? 2 : 1;
+ STRCPY(d, "<a0>");
+ d += 4;
+ }
+ else if (d - IObuff + (*mb_ptr2len)(s) + 1 >= IOSIZE)
+ break;
+ else
+ MB_COPY_CHAR(s, d);
+ }
+ *d = NUL;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * If "start" points "&opt", "&l:opt", "&g:opt" or "$ENV" return a pointer to
+ * the name. Otherwise just return "start".
+ */
+ char_u *
+skip_option_env_lead(char_u *start)
+{
+ char_u *name = start;
+
+ if (*start == '&')
+ {
+ if ((start[1] == 'l' || start[1] == 'g') && start[2] == ':')
+ name += 3;
+ else
+ name += 1;
+ }
+ else if (*start == '$')
+ name += 1;
+ return name;
+}
+#endif
+
+/*
+ * Return TRUE and set "*idx" if "p" points to a one letter command.
+ * If not in Vim9 script:
+ * - The 'k' command can directly be followed by any character.
+ * - The 's' command can be followed directly by 'c', 'g', 'i', 'I' or 'r'
+ * but :sre[wind] is another command, as are :scr[iptnames],
+ * :scs[cope], :sim[alt], :sig[ns] and :sil[ent].
+ */
+ static int
+one_letter_cmd(char_u *p, cmdidx_T *idx)
+{
+ if (in_vim9script())
+ return FALSE;
+ if (*p == 'k')
+ {
+ *idx = CMD_k;
+ return TRUE;
+ }
+ if (p[0] == 's'
+ && ((p[1] == 'c' && (p[2] == NUL || (p[2] != 's' && p[2] != 'r'
+ && (p[3] == NUL || (p[3] != 'i' && p[4] != 'p')))))
+ || p[1] == 'g'
+ || (p[1] == 'i' && p[2] != 'm' && p[2] != 'l' && p[2] != 'g')
+ || p[1] == 'I'
+ || (p[1] == 'r' && p[2] != 'e')))
+ {
+ *idx = CMD_substitute;
+ return TRUE;
+ }
+ return FALSE;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Return TRUE if "cmd" starts with "123->", a number followed by a method
+ * call.
+ */
+ int
+number_method(char_u *cmd)
+{
+ char_u *p = skipdigits(cmd);
+
+ return p > cmd && (p = skipwhite(p))[0] == '-' && p[1] == '>';
+}
+#endif
+
+/*
+ * Find an Ex command by its name, either built-in or user.
+ * Start of the name can be found at eap->cmd.
+ * Sets eap->cmdidx and returns a pointer to char after the command name.
+ * "full" is set to TRUE if the whole command name matched.
+ *
+ * If "lookup" is not NULL recognize expression without "eval" or "call" and
+ * assignment without "let". Sets eap->cmdidx to the command while returning
+ * "eap->cmd".
+ *
+ * Returns NULL for an ambiguous user command.
+ */
+ char_u *
+find_ex_command(
+ exarg_T *eap,
+ int *full UNUSED,
+ int (*lookup)(char_u *, size_t, int cmd, cctx_T *) UNUSED,
+ cctx_T *cctx UNUSED)
+{
+ int len;
+ char_u *p;
+ int i;
+#ifndef FEAT_EVAL
+ int vim9 = FALSE;
+#else
+ int vim9 = in_vim9script();
+
+ /*
+ * Recognize a Vim9 script function/method call and assignment:
+ * "lvar = value", "lvar(arg)", "[1, 2 3]->Func()"
+ */
+ p = eap->cmd;
+ if (lookup != NULL)
+ {
+ char_u *pskip = skip_option_env_lead(eap->cmd);
+
+ if (vim_strchr((char_u *)"{('[\"@&$", *p) != NULL
+ || ((p = to_name_const_end(pskip)) > eap->cmd && *p != NUL)
+ || (p[0] == '0' && p[1] == 'z'))
+ {
+ int oplen;
+ int heredoc;
+ char_u *swp;
+
+ if (*eap->cmd == '&'
+ || (eap->cmd[0] == '$'
+ && eap->cmd[1] != '\'' && eap->cmd[1] != '"')
+ || (eap->cmd[0] == '@'
+ && (valid_yank_reg(eap->cmd[1], FALSE)
+ || eap->cmd[1] == '@')))
+ {
+ if (*eap->cmd == '&')
+ {
+ p = eap->cmd + 1;
+ if (STRNCMP("l:", p, 2) == 0 || STRNCMP("g:", p, 2) == 0)
+ p += 2;
+ p = to_name_end(p, FALSE);
+ }
+ else if (*eap->cmd == '$')
+ p = to_name_end(eap->cmd + 1, FALSE);
+ else
+ p = eap->cmd + 2;
+ if (ends_excmd(*skipwhite(p)))
+ {
+ // "&option <NL>", "$ENV <NL>" and "@r <NL>" are the start
+ // of an expression.
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+ // "&option" can be followed by "->" or "=", check below
+ }
+
+ swp = skipwhite(p);
+
+ if (
+ // "(..." is an expression.
+ // "funcname(" is always a function call.
+ *p == '('
+ || (p == eap->cmd
+ ? (
+ // "{..." is a dict expression or block start.
+ *eap->cmd == '{'
+ // "'string'->func()" is an expression.
+ || *eap->cmd == '\''
+ // '"string"->func()' is an expression.
+ || *eap->cmd == '"'
+ // '$"string"->func()' is an expression.
+ // "$'string'->func()" is an expression.
+ || (eap->cmd[0] == '$'
+ && (eap->cmd[1] == '\'' || eap->cmd[1] == '"'))
+ // '0z1234->func()' is an expression.
+ || (eap->cmd[0] == '0' && eap->cmd[1] == 'z')
+ // "g:varname" is an expression.
+ || eap->cmd[1] == ':'
+ )
+ // "varname->func()" is an expression.
+ : (*swp == '-' && swp[1] == '>')))
+ {
+ if (*eap->cmd == '{' && ends_excmd(*skipwhite(eap->cmd + 1)))
+ {
+ // "{" by itself is the start of a block.
+ eap->cmdidx = CMD_block;
+ return eap->cmd + 1;
+ }
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+
+ if ((p != eap->cmd && (
+ // "varname[]" is an expression.
+ *p == '['
+ // "varname.key" is an expression.
+ || (*p == '.'
+ && (ASCII_ISALPHA(p[1]) || p[1] == '_'))))
+ // g:[key] is an expression
+ || STRNCMP(eap->cmd, "g:[", 3) == 0)
+ {
+ char_u *after = eap->cmd;
+
+ // When followed by "=" or "+=" then it is an assignment.
+ // Skip over the whole thing, it can be:
+ // name.member = val
+ // name[a : b] = val
+ // name[idx] = val
+ // name[idx].member = val
+ // etc.
+ eap->cmdidx = CMD_eval;
+ ++emsg_silent;
+ if (skip_expr(&after, NULL) == OK)
+ {
+ after = skipwhite(after);
+ if (*after == '=' || (*after != NUL && after[1] == '=')
+ || (after[0] == '.' && after[1] == '.'
+ && after[2] == '='))
+ eap->cmdidx = CMD_var;
+ }
+ --emsg_silent;
+ return eap->cmd;
+ }
+
+ // "[...]->Method()" is a list expression, but "[a, b] = Func()" is
+ // an assignment.
+ // If there is no line break inside the "[...]" then "p" is
+ // advanced to after the "]" by to_name_const_end(): check if a "="
+ // follows.
+ // If "[...]" has a line break "p" still points at the "[" and it
+ // can't be an assignment.
+ if (*eap->cmd == '[')
+ {
+ char_u *eq;
+
+ p = to_name_const_end(eap->cmd);
+ if (p == eap->cmd && *p == '[')
+ {
+ int count = 0;
+ int semicolon = FALSE;
+
+ p = skip_var_list(eap->cmd, TRUE, &count, &semicolon, TRUE);
+ }
+ eq = p;
+ if (eq != NULL)
+ {
+ eq = skipwhite(eq);
+ if (vim_strchr((char_u *)"+-*/%", *eq) != NULL)
+ ++eq;
+ }
+ if (p == NULL || p == eap->cmd || *eq != '=')
+ {
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+ if (p > eap->cmd && *eq == '=')
+ {
+ eap->cmdidx = CMD_var;
+ return eap->cmd;
+ }
+ }
+
+ // Recognize an assignment if we recognize the variable name:
+ // "g:var = expr"
+ // "@r = expr"
+ // "&opt = expr"
+ // "var = expr" where "var" is a variable name or we are skipping
+ // (variable declaration might have been skipped).
+ // Not "redir => var" (when skipping).
+ oplen = assignment_len(skipwhite(p), &heredoc);
+ if (oplen > 0)
+ {
+ if (((p - eap->cmd) > 2 && eap->cmd[1] == ':')
+ || *eap->cmd == '&'
+ || *eap->cmd == '$'
+ || *eap->cmd == '@'
+ || (eap->skip && IS_WHITE_OR_NUL(
+ *(skipwhite(p) + oplen)))
+ || lookup(eap->cmd, p - eap->cmd, TRUE, cctx) == OK)
+ {
+ eap->cmdidx = CMD_var;
+ return eap->cmd;
+ }
+ }
+
+ // Recognize trying to use a type for a w:, b:, t: or g: variable:
+ // "w:varname: number = 123".
+ if (eap->cmd[1] == ':' && *p == ':')
+ {
+ eap->cmdidx = CMD_var;
+ return eap->cmd;
+ }
+ }
+
+ // 1234->func() is a method call
+ if (number_method(eap->cmd))
+ {
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+
+ // "g:", "s:" and "l:" are always assumed to be a variable, thus start
+ // an expression. A global/substitute/list command needs to use a
+ // longer name.
+ if (vim_strchr((char_u *)"gsl", *p) != NULL && p[1] == ':')
+ {
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+
+ // If it is an ID it might be a variable with an operator on the next
+ // line, if the variable exists it can't be an Ex command.
+ if (p > eap->cmd && ends_excmd(*skipwhite(p))
+ && (lookup(eap->cmd, p - eap->cmd, TRUE, cctx) == OK
+ || (ASCII_ISALPHA(eap->cmd[0]) && eap->cmd[1] == ':')))
+ {
+ eap->cmdidx = CMD_eval;
+ return eap->cmd;
+ }
+
+ // Check for "++nr" and "--nr".
+ if (p == eap->cmd && p[0] != NUL && p[0] == p[1]
+ && (*p == '+' || *p == '-'))
+ {
+ eap->cmdidx = *p == '+' ? CMD_increment : CMD_decrement;
+ return eap->cmd + 2;
+ }
+ }
+#endif
+
+ /*
+ * Isolate the command and search for it in the command table.
+ */
+ p = eap->cmd;
+ if (one_letter_cmd(p, &eap->cmdidx))
+ {
+ ++p;
+ }
+ else
+ {
+ while (ASCII_ISALPHA(*p))
+ ++p;
+ // for python 3.x support ":py3", ":python3", ":py3file", etc.
+ if (eap->cmd[0] == 'p' && eap->cmd[1] == 'y')
+ {
+ while (ASCII_ISALNUM(*p))
+ ++p;
+ }
+ else if (*p == '9' && STRNCMP("vim9", eap->cmd, 4) == 0)
+ {
+ // include "9" for "vim9*" commands; "vim9cmd" and "vim9script".
+ ++p;
+ while (ASCII_ISALPHA(*p))
+ ++p;
+ }
+
+ // check for non-alpha command
+ if (p == eap->cmd && vim_strchr((char_u *)"@*!=><&~#}", *p) != NULL)
+ ++p;
+ len = (int)(p - eap->cmd);
+ // The "d" command can directly be followed by 'l' or 'p' flag, when
+ // not in Vim9 script.
+ if (!vim9 && *eap->cmd == 'd' && (p[-1] == 'l' || p[-1] == 'p'))
+ {
+ // Check for ":dl", ":dell", etc. to ":deletel": that's
+ // :delete with the 'l' flag. Same for 'p'.
+ for (i = 0; i < len; ++i)
+ if (eap->cmd[i] != ((char_u *)"delete")[i])
+ break;
+ if (i == len - 1)
+ {
+ --len;
+ if (p[-1] == 'l')
+ eap->flags |= EXFLAG_LIST;
+ else
+ eap->flags |= EXFLAG_PRINT;
+ }
+ }
+
+ if (ASCII_ISLOWER(eap->cmd[0]))
+ {
+ int c1 = eap->cmd[0];
+ int c2 = len == 1 ? NUL : eap->cmd[1];
+
+ if (command_count != (int)CMD_SIZE)
+ {
+ iemsg(e_command_table_needs_to_be_updated_run_make_cmdidxs);
+ getout(1);
+ }
+
+ // Use a precomputed index for fast look-up in cmdnames[]
+ // taking into account the first 2 letters of eap->cmd.
+ eap->cmdidx = cmdidxs1[CharOrdLow(c1)];
+ if (ASCII_ISLOWER(c2))
+ eap->cmdidx += cmdidxs2[CharOrdLow(c1)][CharOrdLow(c2)];
+ }
+ else if (ASCII_ISUPPER(eap->cmd[0]))
+ eap->cmdidx = CMD_Next;
+ else
+ eap->cmdidx = CMD_bang;
+
+ for ( ; (int)eap->cmdidx < (int)CMD_SIZE;
+ eap->cmdidx = (cmdidx_T)((int)eap->cmdidx + 1))
+ if (STRNCMP(cmdnames[(int)eap->cmdidx].cmd_name, (char *)eap->cmd,
+ (size_t)len) == 0)
+ {
+#ifdef FEAT_EVAL
+ if (full != NULL && cmdnames[eap->cmdidx].cmd_name[len] == NUL)
+ *full = TRUE;
+#endif
+ break;
+ }
+
+ // :Print and :mode are not supported in Vim9 script.
+ // Some commands cannot be shortened in Vim9 script.
+ if (vim9 && eap->cmdidx != CMD_SIZE)
+ {
+ if (eap->cmdidx == CMD_mode || eap->cmdidx == CMD_Print)
+ eap->cmdidx = CMD_SIZE;
+ else if ((cmdnames[eap->cmdidx].cmd_argt & EX_WHOLE)
+ && len < (int)STRLEN(cmdnames[eap->cmdidx].cmd_name))
+ {
+ semsg(_(e_command_cannot_be_shortened_str), eap->cmd);
+ eap->cmdidx = CMD_SIZE;
+ }
+ }
+
+ // Do not recognize ":*" as the star command unless '*' is in
+ // 'cpoptions'.
+ if (eap->cmdidx == CMD_star && vim_strchr(p_cpo, CPO_STAR) == NULL)
+ p = eap->cmd;
+
+ // Look for a user defined command as a last resort. Let ":Print" be
+ // overruled by a user defined command.
+ if ((eap->cmdidx == CMD_SIZE || eap->cmdidx == CMD_Print)
+ && *eap->cmd >= 'A' && *eap->cmd <= 'Z')
+ {
+ // User defined commands may contain digits.
+ while (ASCII_ISALNUM(*p))
+ ++p;
+ p = find_ucmd(eap, p, full, NULL, NULL);
+ }
+ if (p == NULL || p == eap->cmd)
+ eap->cmdidx = CMD_SIZE;
+ }
+
+ // ":fina" means ":finally" in legacy script, for backwards compatibility.
+ if (eap->cmdidx == CMD_final && p - eap->cmd == 4 && !vim9)
+ eap->cmdidx = CMD_finally;
+
+#ifdef FEAT_EVAL
+ if (eap->cmdidx < CMD_SIZE
+ && vim9
+ && !IS_WHITE_NL_OR_NUL(*p) && *p != '!' && *p != '|'
+ && (eap->cmdidx < 0 ||
+ (cmdnames[eap->cmdidx].cmd_argt & EX_NONWHITE_OK) == 0))
+ {
+ char_u *cmd = vim_strnsave(eap->cmd, p - eap->cmd);
+
+ semsg(_(e_command_str_not_followed_by_white_space_str), cmd, eap->cmd);
+ eap->cmdidx = CMD_SIZE;
+ vim_free(cmd);
+ }
+#endif
+
+ return p;
+}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+static struct cmdmod
+{
+ char *name;
+ int minlen;
+ int has_count; // :123verbose :3tab
+} cmdmods[] = {
+ {"aboveleft", 3, FALSE},
+ {"belowright", 3, FALSE},
+ {"botright", 2, FALSE},
+ {"browse", 3, FALSE},
+ {"confirm", 4, FALSE},
+ {"filter", 4, FALSE},
+ {"hide", 3, FALSE},
+ {"horizontal", 3, FALSE},
+ {"keepalt", 5, FALSE},
+ {"keepjumps", 5, FALSE},
+ {"keepmarks", 3, FALSE},
+ {"keeppatterns", 5, FALSE},
+ {"leftabove", 5, FALSE},
+ {"legacy", 3, FALSE},
+ {"lockmarks", 3, FALSE},
+ {"noautocmd", 3, FALSE},
+ {"noswapfile", 3, FALSE},
+ {"rightbelow", 6, FALSE},
+ {"sandbox", 3, FALSE},
+ {"silent", 3, FALSE},
+ {"tab", 3, TRUE},
+ {"topleft", 2, FALSE},
+ {"unsilent", 3, FALSE},
+ {"verbose", 4, TRUE},
+ {"vertical", 4, FALSE},
+ {"vim9cmd", 4, FALSE},
+};
+
+/*
+ * Return length of a command modifier (including optional count).
+ * Return zero when it's not a modifier.
+ */
+ int
+modifier_len(char_u *cmd)
+{
+ int i, j;
+ char_u *p = cmd;
+
+ if (VIM_ISDIGIT(*cmd))
+ p = skipwhite(skipdigits(cmd + 1));
+ for (i = 0; i < (int)ARRAY_LENGTH(cmdmods); ++i)
+ {
+ for (j = 0; p[j] != NUL; ++j)
+ if (p[j] != cmdmods[i].name[j])
+ break;
+ if (!ASCII_ISALPHA(p[j]) && j >= cmdmods[i].minlen
+ && (p == cmd || cmdmods[i].has_count))
+ return j + (int)(p - cmd);
+ }
+ return 0;
+}
+
+/*
+ * Return > 0 if an Ex command "name" exists.
+ * Return 2 if there is an exact match.
+ * Return 3 if there is an ambiguous match.
+ */
+ int
+cmd_exists(char_u *name)
+{
+ exarg_T ea;
+ int full = FALSE;
+ int i;
+ int j;
+ char_u *p;
+
+ // Check command modifiers.
+ for (i = 0; i < (int)ARRAY_LENGTH(cmdmods); ++i)
+ {
+ for (j = 0; name[j] != NUL; ++j)
+ if (name[j] != cmdmods[i].name[j])
+ break;
+ if (name[j] == NUL && j >= cmdmods[i].minlen)
+ return (cmdmods[i].name[j] == NUL ? 2 : 1);
+ }
+
+ // Check built-in commands and user defined commands.
+ // For ":2match" and ":3match" we need to skip the number.
+ ea.cmd = (*name == '2' || *name == '3') ? name + 1 : name;
+ ea.cmdidx = (cmdidx_T)0;
+ ea.flags = 0;
+ p = find_ex_command(&ea, &full, NULL, NULL);
+ if (p == NULL)
+ return 3;
+ if (vim_isdigit(*name) && ea.cmdidx != CMD_match)
+ return 0;
+ if (*skipwhite(p) != NUL)
+ return 0; // trailing garbage
+ return (ea.cmdidx == CMD_SIZE ? 0 : (full ? 2 : 1));
+}
+
+/*
+ * "fullcommand" function
+ */
+ void
+f_fullcommand(typval_T *argvars, typval_T *rettv)
+{
+ exarg_T ea;
+ char_u *name;
+ char_u *p;
+ int vim9script = in_vim9script();
+ int save_cmod_flags = cmdmod.cmod_flags;
+
+ rettv->v_type = VAR_STRING;
+ rettv->vval.v_string = NULL;
+
+ if (in_vim9script()
+ && (check_for_string_arg(argvars, 0) == FAIL
+ || check_for_opt_bool_arg(argvars, 1) == FAIL))
+ return;
+
+ name = tv_get_string(&argvars[0]);
+ if (name == NULL)
+ return;
+
+ if (argvars[1].v_type != VAR_UNKNOWN)
+ {
+ vim9script = tv_get_bool(&argvars[1]);
+ cmdmod.cmod_flags &= ~(CMOD_VIM9CMD | CMOD_LEGACY);
+ cmdmod.cmod_flags |= vim9script ? CMOD_VIM9CMD : CMOD_LEGACY;
+ }
+
+ while (*name == ':')
+ name++;
+ name = skip_range(name, TRUE, NULL);
+
+ ea.cmd = (*name == '2' || *name == '3') ? name + 1 : name;
+ ea.cmdidx = (cmdidx_T)0;
+ ea.addr_count = 0;
+ ++emsg_silent; // don't complain about using "en" in Vim9 script
+ p = find_ex_command(&ea, NULL, NULL, NULL);
+ --emsg_silent;
+ if (p == NULL || ea.cmdidx == CMD_SIZE)
+ goto theend;
+
+ if (vim9script)
+ {
+ int res;
+
+ ++emsg_silent;
+ res = not_in_vim9(&ea);
+ --emsg_silent;
+
+ if (res == FAIL)
+ goto theend;
+ }
+
+ rettv->vval.v_string = vim_strsave(IS_USER_CMDIDX(ea.cmdidx)
+ ? get_user_command_name(ea.useridx, ea.cmdidx)
+ : cmdnames[ea.cmdidx].cmd_name);
+theend:
+ cmdmod.cmod_flags = save_cmod_flags;
+}
+#endif
+
+ cmdidx_T
+excmd_get_cmdidx(char_u *cmd, int len)
+{
+ cmdidx_T idx;
+
+ if (!one_letter_cmd(cmd, &idx))
+ for (idx = (cmdidx_T)0; (int)idx < (int)CMD_SIZE;
+ idx = (cmdidx_T)((int)idx + 1))
+ if (STRNCMP(cmdnames[(int)idx].cmd_name, cmd, (size_t)len) == 0)
+ break;
+
+ return idx;
+}
+
+ long
+excmd_get_argt(cmdidx_T idx)
+{
+ return (long)cmdnames[(int)idx].cmd_argt;
+}
+
+/*
+ * Skip a range specifier of the form: addr [,addr] [;addr] ..
+ *
+ * Backslashed delimiters after / or ? will be skipped, and commands will
+ * not be expanded between /'s and ?'s or after "'".
+ *
+ * Also skip white space and ":" characters after the range.
+ * Returns the "cmd" pointer advanced to beyond the range.
+ */
+ char_u *
+skip_range(
+ char_u *cmd_start,
+ int skip_star, // skip "*" used for Visual range
+ int *ctx) // pointer to xp_context or NULL
+{
+ char_u *cmd = cmd_start;
+ unsigned delim;
+
+ while (vim_strchr((char_u *)" \t0123456789.$%'/?-+,;\\", *cmd) != NULL)
+ {
+ if (*cmd == '\\')
+ {
+ if (cmd[1] == '?' || cmd[1] == '/' || cmd[1] == '&')
+ ++cmd;
+ else
+ break;
+ }
+ else if (*cmd == '\'')
+ {
+ char_u *p = cmd;
+
+ // a quote is only valid at the start or after a separator
+ while (p > cmd_start)
+ {
+ --p;
+ if (!VIM_ISWHITE(*p))
+ break;
+ }
+ if (cmd > cmd_start && !VIM_ISWHITE(*p) && *p != ',' && *p != ';')
+ break;
+ if (*++cmd == NUL && ctx != NULL)
+ *ctx = EXPAND_NOTHING;
+ }
+ else if (*cmd == '/' || *cmd == '?')
+ {
+ delim = *cmd++;
+ while (*cmd != NUL && *cmd != delim)
+ if (*cmd++ == '\\' && *cmd != NUL)
+ ++cmd;
+ if (*cmd == NUL && ctx != NULL)
+ *ctx = EXPAND_NOTHING;
+ }
+ if (*cmd != NUL)
+ ++cmd;
+ }
+
+ // Skip ":" and white space.
+ while (*cmd == ':')
+ cmd = skipwhite(cmd + 1);
+
+ // Skip "*" used for Visual range.
+ if (skip_star && *cmd == '*' && vim_strchr(p_cpo, CPO_STAR) == NULL)
+ cmd = skipwhite(cmd + 1);
+
+ return cmd;
+}
+
+ static void
+addr_error(cmd_addr_T addr_type)
+{
+ if (addr_type == ADDR_NONE)
+ emsg(_(e_no_range_allowed));
+ else
+ emsg(_(e_invalid_range));
+}
+
+/*
+ * Return the default address for an address type.
+ */
+ static linenr_T
+default_address(exarg_T *eap)
+{
+ linenr_T lnum = 0;
+
+ switch (eap->addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ // Default is the cursor line number. Avoid using an invalid
+ // line number though.
+ if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
+ lnum = curbuf->b_ml.ml_line_count;
+ else
+ lnum = curwin->w_cursor.lnum;
+ break;
+ case ADDR_WINDOWS:
+ lnum = CURRENT_WIN_NR;
+ break;
+ case ADDR_ARGUMENTS:
+ lnum = curwin->w_arg_idx + 1;
+ if (lnum > ARGCOUNT)
+ lnum = ARGCOUNT;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ case ADDR_BUFFERS:
+ lnum = curbuf->b_fnum;
+ break;
+ case ADDR_TABS:
+ lnum = CURRENT_TAB_NR;
+ break;
+ case ADDR_TABS_RELATIVE:
+ case ADDR_UNSIGNED:
+ lnum = 1;
+ break;
+ case ADDR_QUICKFIX:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_idx(eap);
+#endif
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_valid_idx(eap);
+#endif
+ break;
+ case ADDR_NONE:
+ // Will give an error later if a range is found.
+ break;
+ }
+ return lnum;
+}
+
+/*
+ * Get a single EX address.
+ *
+ * Set ptr to the next character after the part that was interpreted.
+ * Set ptr to NULL when an error is encountered.
+ * This may set the last used search pattern.
+ *
+ * Return MAXLNUM when no Ex address was found.
+ */
+ static linenr_T
+get_address(
+ exarg_T *eap UNUSED,
+ char_u **ptr,
+ cmd_addr_T addr_type,
+ int skip, // only skip the address, don't use it
+ int silent, // no errors or side effects
+ int to_other_file, // flag: may jump to other file
+ int address_count UNUSED) // 1 for first address, >1 after comma
+{
+ int c;
+ int i;
+ long n;
+ char_u *cmd;
+ pos_T pos;
+ pos_T *fp;
+ linenr_T lnum;
+ buf_T *buf;
+
+ cmd = skipwhite(*ptr);
+ lnum = MAXLNUM;
+ do
+ {
+ switch (*cmd)
+ {
+ case '.': // '.' - Cursor position
+ ++cmd;
+ switch (addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ lnum = curwin->w_cursor.lnum;
+ break;
+ case ADDR_WINDOWS:
+ lnum = CURRENT_WIN_NR;
+ break;
+ case ADDR_ARGUMENTS:
+ lnum = curwin->w_arg_idx + 1;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ case ADDR_BUFFERS:
+ lnum = curbuf->b_fnum;
+ break;
+ case ADDR_TABS:
+ lnum = CURRENT_TAB_NR;
+ break;
+ case ADDR_NONE:
+ case ADDR_TABS_RELATIVE:
+ case ADDR_UNSIGNED:
+ addr_error(addr_type);
+ cmd = NULL;
+ goto error;
+ break;
+ case ADDR_QUICKFIX:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_idx(eap);
+#endif
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_valid_idx(eap);
+#endif
+ break;
+ }
+ break;
+
+ case '$': // '$' - last line
+ ++cmd;
+ switch (addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ lnum = curbuf->b_ml.ml_line_count;
+ break;
+ case ADDR_WINDOWS:
+ lnum = LAST_WIN_NR;
+ break;
+ case ADDR_ARGUMENTS:
+ lnum = ARGCOUNT;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ buf = lastbuf;
+ while (buf->b_ml.ml_mfp == NULL)
+ {
+ if (buf->b_prev == NULL)
+ break;
+ buf = buf->b_prev;
+ }
+ lnum = buf->b_fnum;
+ break;
+ case ADDR_BUFFERS:
+ lnum = lastbuf->b_fnum;
+ break;
+ case ADDR_TABS:
+ lnum = LAST_TAB_NR;
+ break;
+ case ADDR_NONE:
+ case ADDR_TABS_RELATIVE:
+ case ADDR_UNSIGNED:
+ addr_error(addr_type);
+ cmd = NULL;
+ goto error;
+ break;
+ case ADDR_QUICKFIX:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_size(eap);
+ if (lnum == 0)
+ lnum = 1;
+#endif
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_valid_size(eap);
+ if (lnum == 0)
+ lnum = 1;
+#endif
+ break;
+ }
+ break;
+
+ case '\'': // ''' - mark
+ if (*++cmd == NUL)
+ {
+ cmd = NULL;
+ goto error;
+ }
+ if (addr_type != ADDR_LINES)
+ {
+ addr_error(addr_type);
+ cmd = NULL;
+ goto error;
+ }
+ if (skip)
+ ++cmd;
+ else
+ {
+ // Only accept a mark in another file when it is
+ // used by itself: ":'M".
+ fp = getmark(*cmd, to_other_file && cmd[1] == NUL);
+ ++cmd;
+ if (fp == (pos_T *)-1)
+ // Jumped to another file.
+ lnum = curwin->w_cursor.lnum;
+ else
+ {
+ if (check_mark(fp) == FAIL)
+ {
+ cmd = NULL;
+ goto error;
+ }
+ lnum = fp->lnum;
+ }
+ }
+ break;
+
+ case '/':
+ case '?': // '/' or '?' - search
+ c = *cmd++;
+ if (addr_type != ADDR_LINES)
+ {
+ addr_error(addr_type);
+ cmd = NULL;
+ goto error;
+ }
+ if (skip) // skip "/pat/"
+ {
+ cmd = skip_regexp(cmd, c, magic_isset());
+ if (*cmd == c)
+ ++cmd;
+ }
+ else
+ {
+ int flags;
+
+ pos = curwin->w_cursor; // save curwin->w_cursor
+
+ // When '/' or '?' follows another address, start from
+ // there.
+ if (lnum > 0 && lnum != MAXLNUM)
+ curwin->w_cursor.lnum =
+ lnum > curbuf->b_ml.ml_line_count
+ ? curbuf->b_ml.ml_line_count : lnum;
+
+ // Start a forward search at the end of the line (unless
+ // before the first line).
+ // Start a backward search at the start of the line.
+ // This makes sure we never match in the current
+ // line, and can match anywhere in the
+ // next/previous line.
+ if (c == '/' && curwin->w_cursor.lnum > 0)
+ curwin->w_cursor.col = MAXCOL;
+ else
+ curwin->w_cursor.col = 0;
+ searchcmdlen = 0;
+ flags = silent ? 0 : SEARCH_HIS | SEARCH_MSG;
+ if (!do_search(NULL, c, c, cmd, 1L, flags, NULL))
+ {
+ curwin->w_cursor = pos;
+ cmd = NULL;
+ goto error;
+ }
+ lnum = curwin->w_cursor.lnum;
+ curwin->w_cursor = pos;
+ // adjust command string pointer
+ cmd += searchcmdlen;
+ }
+ break;
+
+ case '\\': // "\?", "\/" or "\&", repeat search
+ ++cmd;
+ if (addr_type != ADDR_LINES)
+ {
+ addr_error(addr_type);
+ cmd = NULL;
+ goto error;
+ }
+ if (*cmd == '&')
+ i = RE_SUBST;
+ else if (*cmd == '?' || *cmd == '/')
+ i = RE_SEARCH;
+ else
+ {
+ emsg(_(e_backslash_should_be_followed_by));
+ cmd = NULL;
+ goto error;
+ }
+
+ if (!skip)
+ {
+ /*
+ * When search follows another address, start from
+ * there.
+ */
+ if (lnum != MAXLNUM)
+ pos.lnum = lnum;
+ else
+ pos.lnum = curwin->w_cursor.lnum;
+
+ /*
+ * Start the search just like for the above
+ * do_search().
+ */
+ if (*cmd != '?')
+ pos.col = MAXCOL;
+ else
+ pos.col = 0;
+ pos.coladd = 0;
+ if (searchit(curwin, curbuf, &pos, NULL,
+ *cmd == '?' ? BACKWARD : FORWARD,
+ (char_u *)"", 1L, SEARCH_MSG, i, NULL) != FAIL)
+ lnum = pos.lnum;
+ else
+ {
+ cmd = NULL;
+ goto error;
+ }
+ }
+ ++cmd;
+ break;
+
+ default:
+ if (VIM_ISDIGIT(*cmd)) // absolute line number
+ lnum = getdigits(&cmd);
+ }
+
+ for (;;)
+ {
+ cmd = skipwhite(cmd);
+ if (*cmd != '-' && *cmd != '+' && !VIM_ISDIGIT(*cmd))
+ break;
+
+ if (lnum == MAXLNUM)
+ {
+ switch (addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ // "+1" is same as ".+1"
+ lnum = curwin->w_cursor.lnum;
+ break;
+ case ADDR_WINDOWS:
+ lnum = CURRENT_WIN_NR;
+ break;
+ case ADDR_ARGUMENTS:
+ lnum = curwin->w_arg_idx + 1;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ case ADDR_BUFFERS:
+ lnum = curbuf->b_fnum;
+ break;
+ case ADDR_TABS:
+ lnum = CURRENT_TAB_NR;
+ break;
+ case ADDR_TABS_RELATIVE:
+ lnum = 1;
+ break;
+ case ADDR_QUICKFIX:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_idx(eap);
+#endif
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ lnum = qf_get_cur_valid_idx(eap);
+#endif
+ break;
+ case ADDR_NONE:
+ case ADDR_UNSIGNED:
+ lnum = 0;
+ break;
+ }
+ }
+
+ if (VIM_ISDIGIT(*cmd))
+ i = '+'; // "number" is same as "+number"
+ else
+ i = *cmd++;
+ if (!VIM_ISDIGIT(*cmd)) // '+' is '+1'
+ n = 1;
+ else
+ {
+ // "number", "+number" or "-number"
+ n = getdigits(&cmd);
+ if (n == MAXLNUM)
+ {
+ emsg(_(e_line_number_out_of_range));
+ goto error;
+ }
+ }
+
+ if (addr_type == ADDR_TABS_RELATIVE)
+ {
+ emsg(_(e_invalid_range));
+ cmd = NULL;
+ goto error;
+ }
+ else if (addr_type == ADDR_LOADED_BUFFERS
+ || addr_type == ADDR_BUFFERS)
+ lnum = compute_buffer_local_count(
+ addr_type, lnum, (i == '-') ? -1 * n : n);
+ else
+ {
+#ifdef FEAT_FOLDING
+ // Relative line addressing: need to adjust for lines in a
+ // closed fold after the first address.
+ if (addr_type == ADDR_LINES && (i == '-' || i == '+')
+ && address_count >= 2)
+ (void)hasFolding(lnum, NULL, &lnum);
+#endif
+ if (i == '-')
+ lnum -= n;
+ else
+ {
+ if (lnum >= 0 && n >= LONG_MAX - lnum)
+ {
+ emsg(_(e_line_number_out_of_range));
+ goto error;
+ }
+ lnum += n;
+ }
+ }
+ }
+ } while (*cmd == '/' || *cmd == '?');
+
+error:
+ *ptr = cmd;
+ return lnum;
+}
+
+/*
+ * Set eap->line1 and eap->line2 to the whole range.
+ * Used for commands with the EX_DFLALL flag and no range given.
+ */
+ static void
+address_default_all(exarg_T *eap)
+{
+ eap->line1 = 1;
+ switch (eap->addr_type)
+ {
+ case ADDR_LINES:
+ case ADDR_OTHER:
+ eap->line2 = curbuf->b_ml.ml_line_count;
+ break;
+ case ADDR_LOADED_BUFFERS:
+ {
+ buf_T *buf = firstbuf;
+
+ while (buf->b_next != NULL && buf->b_ml.ml_mfp == NULL)
+ buf = buf->b_next;
+ eap->line1 = buf->b_fnum;
+ buf = lastbuf;
+ while (buf->b_prev != NULL && buf->b_ml.ml_mfp == NULL)
+ buf = buf->b_prev;
+ eap->line2 = buf->b_fnum;
+ }
+ break;
+ case ADDR_BUFFERS:
+ eap->line1 = firstbuf->b_fnum;
+ eap->line2 = lastbuf->b_fnum;
+ break;
+ case ADDR_WINDOWS:
+ eap->line2 = LAST_WIN_NR;
+ break;
+ case ADDR_TABS:
+ eap->line2 = LAST_TAB_NR;
+ break;
+ case ADDR_TABS_RELATIVE:
+ eap->line2 = 1;
+ break;
+ case ADDR_ARGUMENTS:
+ if (ARGCOUNT == 0)
+ eap->line1 = eap->line2 = 0;
+ else
+ eap->line2 = ARGCOUNT;
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ eap->line2 = qf_get_valid_size(eap);
+ if (eap->line2 == 0)
+ eap->line2 = 1;
+#endif
+ break;
+ case ADDR_NONE:
+ case ADDR_UNSIGNED:
+ case ADDR_QUICKFIX:
+ iemsg("Cannot use EX_DFLALL with ADDR_NONE, ADDR_UNSIGNED or ADDR_QUICKFIX");
+ break;
+ }
+}
+
+
+/*
+ * Get flags from an Ex command argument.
+ */
+ static void
+get_flags(exarg_T *eap)
+{
+ while (vim_strchr((char_u *)"lp#", *eap->arg) != NULL)
+ {
+ if (*eap->arg == 'l')
+ eap->flags |= EXFLAG_LIST;
+ else if (*eap->arg == 'p')
+ eap->flags |= EXFLAG_PRINT;
+ else
+ eap->flags |= EXFLAG_NR;
+ eap->arg = skipwhite(eap->arg + 1);
+ }
+}
+
+/*
+ * Function called for command which is Not Implemented. NI!
+ */
+ void
+ex_ni(exarg_T *eap)
+{
+ if (!eap->skip)
+ eap->errmsg =
+ _(e_sorry_command_is_not_available_in_this_version);
+}
+
+#ifdef HAVE_EX_SCRIPT_NI
+/*
+ * Function called for script command which is Not Implemented. NI!
+ * Skips over ":perl <<EOF" constructs.
+ */
+ static void
+ex_script_ni(exarg_T *eap)
+{
+ if (!eap->skip)
+ ex_ni(eap);
+ else
+ vim_free(script_get(eap, eap->arg));
+}
+#endif
+
+/*
+ * Check range in Ex command for validity.
+ * Return NULL when valid, error message when invalid.
+ */
+ static char *
+invalid_range(exarg_T *eap)
+{
+ buf_T *buf;
+
+ if ( eap->line1 < 0
+ || eap->line2 < 0
+ || eap->line1 > eap->line2)
+ return _(e_invalid_range);
+
+ if (eap->argt & EX_RANGE)
+ {
+ switch (eap->addr_type)
+ {
+ case ADDR_LINES:
+ if (eap->line2 > curbuf->b_ml.ml_line_count
+#ifdef FEAT_DIFF
+ + (eap->cmdidx == CMD_diffget)
+#endif
+ )
+ return _(e_invalid_range);
+ break;
+ case ADDR_ARGUMENTS:
+ // add 1 if ARGCOUNT is 0
+ if (eap->line2 > ARGCOUNT + (!ARGCOUNT))
+ return _(e_invalid_range);
+ break;
+ case ADDR_BUFFERS:
+ // Only a boundary check, not whether the buffers actually
+ // exist.
+ if (eap->line1 < 1 || eap->line2 > get_highest_fnum())
+ return _(e_invalid_range);
+ break;
+ case ADDR_LOADED_BUFFERS:
+ buf = firstbuf;
+ while (buf->b_ml.ml_mfp == NULL)
+ {
+ if (buf->b_next == NULL)
+ return _(e_invalid_range);
+ buf = buf->b_next;
+ }
+ if (eap->line1 < buf->b_fnum)
+ return _(e_invalid_range);
+ buf = lastbuf;
+ while (buf->b_ml.ml_mfp == NULL)
+ {
+ if (buf->b_prev == NULL)
+ return _(e_invalid_range);
+ buf = buf->b_prev;
+ }
+ if (eap->line2 > buf->b_fnum)
+ return _(e_invalid_range);
+ break;
+ case ADDR_WINDOWS:
+ if (eap->line2 > LAST_WIN_NR)
+ return _(e_invalid_range);
+ break;
+ case ADDR_TABS:
+ if (eap->line2 > LAST_TAB_NR)
+ return _(e_invalid_range);
+ break;
+ case ADDR_TABS_RELATIVE:
+ case ADDR_OTHER:
+ // Any range is OK.
+ break;
+ case ADDR_QUICKFIX:
+#ifdef FEAT_QUICKFIX
+ // No error for value that is too big, will use the last entry.
+ if (eap->line2 <= 0)
+ {
+ if (eap->addr_count == 0)
+ return _(e_no_errors);
+ return _(e_invalid_range);
+ }
+#endif
+ break;
+ case ADDR_QUICKFIX_VALID:
+#ifdef FEAT_QUICKFIX
+ if ((eap->line2 != 1 && eap->line2 > qf_get_valid_size(eap))
+ || eap->line2 < 0)
+ return _(e_invalid_range);
+#endif
+ break;
+ case ADDR_UNSIGNED:
+ case ADDR_NONE:
+ // Will give an error elsewhere.
+ break;
+ }
+ }
+ return NULL;
+}
+
+/*
+ * Correct the range for zero line number, if required.
+ */
+ static void
+correct_range(exarg_T *eap)
+{
+ if (!(eap->argt & EX_ZEROR)) // zero in range not allowed
+ {
+ if (eap->line1 == 0)
+ eap->line1 = 1;
+ if (eap->line2 == 0)
+ eap->line2 = 1;
+ }
+}
+
+#ifdef FEAT_QUICKFIX
+/*
+ * For a ":vimgrep" or ":vimgrepadd" command return a pointer past the
+ * pattern. Otherwise return eap->arg.
+ */
+ static char_u *
+skip_grep_pat(exarg_T *eap)
+{
+ char_u *p = eap->arg;
+
+ if (*p != NUL && (eap->cmdidx == CMD_vimgrep || eap->cmdidx == CMD_lvimgrep
+ || eap->cmdidx == CMD_vimgrepadd
+ || eap->cmdidx == CMD_lvimgrepadd
+ || grep_internal(eap->cmdidx)))
+ {
+ p = skip_vimgrep_pat(p, NULL, NULL);
+ if (p == NULL)
+ p = eap->arg;
+ }
+ return p;
+}
+
+/*
+ * For the ":make" and ":grep" commands insert the 'makeprg'/'grepprg' option
+ * in the command line, so that things like % get expanded.
+ */
+ static char_u *
+replace_makeprg(exarg_T *eap, char_u *p, char_u **cmdlinep)
+{
+ char_u *new_cmdline;
+ char_u *program;
+ char_u *pos;
+ char_u *ptr;
+ int len;
+ int i;
+
+ /*
+ * Don't do it when ":vimgrep" is used for ":grep".
+ */
+ if ((eap->cmdidx == CMD_make || eap->cmdidx == CMD_lmake
+ || eap->cmdidx == CMD_grep || eap->cmdidx == CMD_lgrep
+ || eap->cmdidx == CMD_grepadd
+ || eap->cmdidx == CMD_lgrepadd)
+ && !grep_internal(eap->cmdidx))
+ {
+ if (eap->cmdidx == CMD_grep || eap->cmdidx == CMD_lgrep
+ || eap->cmdidx == CMD_grepadd || eap->cmdidx == CMD_lgrepadd)
+ {
+ if (*curbuf->b_p_gp == NUL)
+ program = p_gp;
+ else
+ program = curbuf->b_p_gp;
+ }
+ else
+ {
+ if (*curbuf->b_p_mp == NUL)
+ program = p_mp;
+ else
+ program = curbuf->b_p_mp;
+ }
+
+ p = skipwhite(p);
+
+ if ((pos = (char_u *)strstr((char *)program, "$*")) != NULL)
+ {
+ // replace $* by given arguments
+ i = 1;
+ while ((pos = (char_u *)strstr((char *)pos + 2, "$*")) != NULL)
+ ++i;
+ len = (int)STRLEN(p);
+ new_cmdline = alloc(STRLEN(program) + (size_t)i * (len - 2) + 1);
+ if (new_cmdline == NULL)
+ return NULL; // out of memory
+ ptr = new_cmdline;
+ while ((pos = (char_u *)strstr((char *)program, "$*")) != NULL)
+ {
+ i = (int)(pos - program);
+ STRNCPY(ptr, program, i);
+ STRCPY(ptr += i, p);
+ ptr += len;
+ program = pos + 2;
+ }
+ STRCPY(ptr, program);
+ }
+ else
+ {
+ new_cmdline = alloc(STRLEN(program) + STRLEN(p) + 2);
+ if (new_cmdline == NULL)
+ return NULL; // out of memory
+ STRCPY(new_cmdline, program);
+ STRCAT(new_cmdline, " ");
+ STRCAT(new_cmdline, p);
+ }
+ msg_make(p);
+
+ // 'eap->cmd' is not set here, because it is not used at CMD_make
+ vim_free(*cmdlinep);
+ *cmdlinep = new_cmdline;
+ p = new_cmdline;
+ }
+ return p;
+}
+#endif
+
+/*
+ * Expand file name in Ex command argument.
+ * When an error is detected, "errormsgp" is set to a non-NULL pointer.
+ * Return FAIL for failure, OK otherwise.
+ */
+ int
+expand_filename(
+ exarg_T *eap,
+ char_u **cmdlinep,
+ char **errormsgp)
+{
+ int has_wildcards; // need to expand wildcards
+ char_u *repl;
+ int srclen;
+ char_u *p;
+ int n;
+ int escaped;
+
+#ifdef FEAT_QUICKFIX
+ // Skip a regexp pattern for ":vimgrep[add] pat file..."
+ p = skip_grep_pat(eap);
+#else
+ p = eap->arg;
+#endif
+
+ /*
+ * Decide to expand wildcards *before* replacing '%', '#', etc. If
+ * the file name contains a wildcard it should not cause expanding.
+ * (it will be expanded anyway if there is a wildcard before replacing).
+ */
+ has_wildcards = mch_has_wildcard(p);
+ while (*p != NUL)
+ {
+#ifdef FEAT_EVAL
+ // Skip over `=expr`, wildcards in it are not expanded.
+ if (p[0] == '`' && p[1] == '=')
+ {
+ p += 2;
+ (void)skip_expr(&p, NULL);
+ if (*p == '`')
+ ++p;
+ continue;
+ }
+#endif
+ /*
+ * Quick check if this cannot be the start of a special string.
+ * Also removes backslash before '%', '#' and '<'.
+ */
+ if (vim_strchr((char_u *)"%#<", *p) == NULL)
+ {
+ ++p;
+ continue;
+ }
+
+ /*
+ * Try to find a match at this position.
+ */
+ repl = eval_vars(p, eap->arg, &srclen, &(eap->do_ecmd_lnum),
+ errormsgp, &escaped, TRUE);
+ if (*errormsgp != NULL) // error detected
+ return FAIL;
+ if (repl == NULL) // no match found
+ {
+ p += srclen;
+ continue;
+ }
+
+ // Wildcards won't be expanded below, the replacement is taken
+ // literally. But do expand "~/file", "~user/file" and "$HOME/file".
+ if (vim_strchr(repl, '$') != NULL || vim_strchr(repl, '~') != NULL)
+ {
+ char_u *l = repl;
+
+ repl = expand_env_save(repl);
+ vim_free(l);
+ }
+
+ // Need to escape white space et al. with a backslash.
+ // Don't do this for:
+ // - replacement that already has been escaped: "##"
+ // - shell commands (may have to use quotes instead).
+ // - non-unix systems when there is a single argument (spaces don't
+ // separate arguments then).
+ if (!eap->usefilter
+ && !escaped
+ && eap->cmdidx != CMD_bang
+ && eap->cmdidx != CMD_grep
+ && eap->cmdidx != CMD_grepadd
+ && eap->cmdidx != CMD_hardcopy
+ && eap->cmdidx != CMD_lgrep
+ && eap->cmdidx != CMD_lgrepadd
+ && eap->cmdidx != CMD_lmake
+ && eap->cmdidx != CMD_make
+ && eap->cmdidx != CMD_terminal
+#ifndef UNIX
+ && !(eap->argt & EX_NOSPC)
+#endif
+ )
+ {
+ char_u *l;
+#ifdef BACKSLASH_IN_FILENAME
+ // Don't escape a backslash here, because rem_backslash() doesn't
+ // remove it later.
+ static char_u *nobslash = (char_u *)" \t\"|";
+# define ESCAPE_CHARS nobslash
+#else
+# define ESCAPE_CHARS escape_chars
+#endif
+
+ for (l = repl; *l; ++l)
+ if (vim_strchr(ESCAPE_CHARS, *l) != NULL)
+ {
+ l = vim_strsave_escaped(repl, ESCAPE_CHARS);
+ if (l != NULL)
+ {
+ vim_free(repl);
+ repl = l;
+ }
+ break;
+ }
+ }
+
+ // For a shell command a '!' must be escaped.
+ if ((eap->usefilter || eap->cmdidx == CMD_bang
+ || eap->cmdidx == CMD_terminal)
+ && vim_strpbrk(repl, (char_u *)"!") != NULL)
+ {
+ char_u *l;
+
+ l = vim_strsave_escaped(repl, (char_u *)"!");
+ if (l != NULL)
+ {
+ vim_free(repl);
+ repl = l;
+ }
+ }
+
+ p = repl_cmdline(eap, p, srclen, repl, cmdlinep);
+ vim_free(repl);
+ if (p == NULL)
+ return FAIL;
+ }
+
+ /*
+ * One file argument: Expand wildcards.
+ * Don't do this with ":r !command" or ":w !command".
+ */
+ if ((eap->argt & EX_NOSPC) && !eap->usefilter)
+ {
+ /*
+ * May do this twice:
+ * 1. Replace environment variables.
+ * 2. Replace any other wildcards, remove backslashes.
+ */
+ for (n = 1; n <= 2; ++n)
+ {
+ if (n == 2)
+ {
+ /*
+ * Halve the number of backslashes (this is Vi compatible).
+ * For Unix and OS/2, when wildcards are expanded, this is
+ * done by ExpandOne() below.
+ */
+#if defined(UNIX)
+ if (!has_wildcards)
+#endif
+ backslash_halve(eap->arg);
+ }
+
+ if (has_wildcards)
+ {
+ if (n == 1)
+ {
+ /*
+ * First loop: May expand environment variables. This
+ * can be done much faster with expand_env() than with
+ * something else (e.g., calling a shell).
+ * After expanding environment variables, check again
+ * if there are still wildcards present.
+ */
+ if (vim_strchr(eap->arg, '$') != NULL
+ || vim_strchr(eap->arg, '~') != NULL)
+ {
+ expand_env_esc(eap->arg, NameBuff, MAXPATHL,
+ TRUE, TRUE, NULL);
+ has_wildcards = mch_has_wildcard(NameBuff);
+ p = NameBuff;
+ }
+ else
+ p = NULL;
+ }
+ else // n == 2
+ {
+ expand_T xpc;
+ int options = WILD_LIST_NOTFOUND
+ | WILD_NOERROR | WILD_ADD_SLASH;
+
+ ExpandInit(&xpc);
+ xpc.xp_context = EXPAND_FILES;
+ if (p_wic)
+ options += WILD_ICASE;
+ p = ExpandOne(&xpc, eap->arg, NULL,
+ options, WILD_EXPAND_FREE);
+ if (p == NULL)
+ return FAIL;
+ }
+ if (p != NULL)
+ {
+ (void)repl_cmdline(eap, eap->arg, (int)STRLEN(eap->arg),
+ p, cmdlinep);
+ if (n == 2) // p came from ExpandOne()
+ vim_free(p);
+ }
+ }
+ }
+ }
+ return OK;
+}
+
+/*
+ * Replace part of the command line, keeping eap->cmd, eap->arg and
+ * eap->nextcmd correct.
+ * "src" points to the part that is to be replaced, of length "srclen".
+ * "repl" is the replacement string.
+ * Returns a pointer to the character after the replaced string.
+ * Returns NULL for failure.
+ */
+ static char_u *
+repl_cmdline(
+ exarg_T *eap,
+ char_u *src,
+ int srclen,
+ char_u *repl,
+ char_u **cmdlinep)
+{
+ int len;
+ int i;
+ char_u *new_cmdline;
+
+ /*
+ * The new command line is build in new_cmdline[].
+ * First allocate it.
+ * Careful: a "+cmd" argument may have been NUL terminated.
+ */
+ len = (int)STRLEN(repl);
+ i = (int)(src - *cmdlinep) + (int)STRLEN(src + srclen) + len + 3;
+ if (eap->nextcmd != NULL)
+ i += (int)STRLEN(eap->nextcmd);// add space for next command
+ if ((new_cmdline = alloc(i)) == NULL)
+ return NULL; // out of memory!
+
+ /*
+ * Copy the stuff before the expanded part.
+ * Copy the expanded stuff.
+ * Copy what came after the expanded part.
+ * Copy the next commands, if there are any.
+ */
+ i = (int)(src - *cmdlinep); // length of part before match
+ mch_memmove(new_cmdline, *cmdlinep, (size_t)i);
+
+ mch_memmove(new_cmdline + i, repl, (size_t)len);
+ i += len; // remember the end of the string
+ STRCPY(new_cmdline + i, src + srclen);
+ src = new_cmdline + i; // remember where to continue
+
+ if (eap->nextcmd != NULL) // append next command
+ {
+ i = (int)STRLEN(new_cmdline) + 1;
+ STRCPY(new_cmdline + i, eap->nextcmd);
+ eap->nextcmd = new_cmdline + i;
+ }
+ eap->cmd = new_cmdline + (eap->cmd - *cmdlinep);
+ eap->arg = new_cmdline + (eap->arg - *cmdlinep);
+ if (eap->do_ecmd_cmd != NULL && eap->do_ecmd_cmd != dollar_command)
+ eap->do_ecmd_cmd = new_cmdline + (eap->do_ecmd_cmd - *cmdlinep);
+ vim_free(*cmdlinep);
+ *cmdlinep = new_cmdline;
+
+ return src;
+}
+
+/*
+ * Check for '|' to separate commands and '"' to start comments.
+ * If "keep_backslash" is TRUE do not remove any backslash.
+ */
+ void
+separate_nextcmd(exarg_T *eap, int keep_backslash)
+{
+ char_u *p;
+
+#ifdef FEAT_QUICKFIX
+ p = skip_grep_pat(eap);
+#else
+ p = eap->arg;
+#endif
+
+ for ( ; *p; MB_PTR_ADV(p))
+ {
+ if (*p == Ctrl_V)
+ {
+ if ((eap->argt & (EX_CTRLV | EX_XFILE)) || keep_backslash)
+ ++p; // skip CTRL-V and next char
+ else
+ // remove CTRL-V and skip next char
+ STRMOVE(p, p + 1);
+ if (*p == NUL) // stop at NUL after CTRL-V
+ break;
+ }
+
+#ifdef FEAT_EVAL
+ // Skip over `=expr` when wildcards are expanded.
+ else if (p[0] == '`' && p[1] == '=' && (eap->argt & EX_XFILE))
+ {
+ p += 2;
+ (void)skip_expr(&p, NULL);
+ if (*p == NUL) // stop at NUL after CTRL-V
+ break;
+ }
+#endif
+
+ // Check for '"'/'#': start of comment or '|': next command
+ // :@" and :*" do not start a comment!
+ // :redir @" doesn't either.
+ else if ((*p == '"'
+ && !in_vim9script()
+ && !(eap->argt & EX_NOTRLCOM)
+ && ((eap->cmdidx != CMD_at && eap->cmdidx != CMD_star)
+ || p != eap->arg)
+ && (eap->cmdidx != CMD_redir
+ || p != eap->arg + 1 || p[-1] != '@'))
+ || (*p == '#'
+ && in_vim9script()
+ && !(eap->argt & EX_NOTRLCOM)
+ && p > eap->cmd && VIM_ISWHITE(p[-1]))
+ || *p == '|' || *p == '\n')
+ {
+ /*
+ * We remove the '\' before the '|', unless EX_CTRLV is used
+ * AND 'b' is present in 'cpoptions'.
+ */
+ if ((vim_strchr(p_cpo, CPO_BAR) == NULL
+ || !(eap->argt & EX_CTRLV)) && *(p - 1) == '\\')
+ {
+ if (!keep_backslash)
+ {
+ STRMOVE(p - 1, p); // remove the '\'
+ --p;
+ }
+ }
+ else
+ {
+ eap->nextcmd = check_nextcmd(p);
+ *p = NUL;
+ break;
+ }
+ }
+ }
+
+ if (!(eap->argt & EX_NOTRLCOM)) // remove trailing spaces
+ del_trailing_spaces(eap->arg);
+}
+
+/*
+ * get + command from ex argument
+ */
+ static char_u *
+getargcmd(char_u **argp)
+{
+ char_u *arg = *argp;
+ char_u *command = NULL;
+
+ if (*arg == '+') // +[command]
+ {
+ ++arg;
+ if (vim_isspace(*arg) || *arg == NUL)
+ command = dollar_command;
+ else
+ {
+ command = arg;
+ arg = skip_cmd_arg(command, TRUE);
+ if (*arg != NUL)
+ *arg++ = NUL; // terminate command with NUL
+ }
+
+ arg = skipwhite(arg); // skip over spaces
+ *argp = arg;
+ }
+ return command;
+}
+
+/*
+ * Find end of "+command" argument. Skip over "\ " and "\\".
+ */
+ char_u *
+skip_cmd_arg(
+ char_u *p,
+ int rembs) // TRUE to halve the number of backslashes
+{
+ while (*p && !vim_isspace(*p))
+ {
+ if (*p == '\\' && p[1] != NUL)
+ {
+ if (rembs)
+ STRMOVE(p, p + 1);
+ else
+ ++p;
+ }
+ MB_PTR_ADV(p);
+ }
+ return p;
+}
+
+ int
+get_bad_opt(char_u *p, exarg_T *eap)
+{
+ if (STRICMP(p, "keep") == 0)
+ eap->bad_char = BAD_KEEP;
+ else if (STRICMP(p, "drop") == 0)
+ eap->bad_char = BAD_DROP;
+ else if (MB_BYTE2LEN(*p) == 1 && p[1] == NUL)
+ eap->bad_char = *p;
+ else
+ return FAIL;
+ return OK;
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the list of bad= names.
+ */
+ static char_u *
+get_bad_name(expand_T *xp UNUSED, int idx)
+{
+ // Note: Keep this in sync with getargopt.
+ static char *(p_bad_values[]) =
+ {
+ "?",
+ "keep",
+ "drop",
+ };
+
+ if (idx < (int)ARRAY_LENGTH(p_bad_values))
+ return (char_u*)p_bad_values[idx];
+ return NULL;
+}
+
+/*
+ * Get "++opt=arg" argument.
+ * Return FAIL or OK.
+ */
+ static int
+getargopt(exarg_T *eap)
+{
+ char_u *arg = eap->arg + 2;
+ int *pp = NULL;
+ int bad_char_idx;
+ char_u *p;
+
+ // Note: Keep this in sync with get_argopt_name.
+
+ // ":edit ++[no]bin[ary] file"
+ if (STRNCMP(arg, "bin", 3) == 0 || STRNCMP(arg, "nobin", 5) == 0)
+ {
+ if (*arg == 'n')
+ {
+ arg += 2;
+ eap->force_bin = FORCE_NOBIN;
+ }
+ else
+ eap->force_bin = FORCE_BIN;
+ if (!checkforcmd(&arg, "binary", 3))
+ return FAIL;
+ eap->arg = skipwhite(arg);
+ return OK;
+ }
+
+ // ":read ++edit file"
+ if (STRNCMP(arg, "edit", 4) == 0)
+ {
+ eap->read_edit = TRUE;
+ eap->arg = skipwhite(arg + 4);
+ return OK;
+ }
+
+ if (STRNCMP(arg, "ff", 2) == 0)
+ {
+ arg += 2;
+ pp = &eap->force_ff;
+ }
+ else if (STRNCMP(arg, "fileformat", 10) == 0)
+ {
+ arg += 10;
+ pp = &eap->force_ff;
+ }
+ else if (STRNCMP(arg, "enc", 3) == 0)
+ {
+ if (STRNCMP(arg, "encoding", 8) == 0)
+ arg += 8;
+ else
+ arg += 3;
+ pp = &eap->force_enc;
+ }
+ else if (STRNCMP(arg, "bad", 3) == 0)
+ {
+ arg += 3;
+ pp = &bad_char_idx;
+ }
+
+ if (pp == NULL || *arg != '=')
+ return FAIL;
+
+ ++arg;
+ *pp = (int)(arg - eap->cmd);
+ arg = skip_cmd_arg(arg, FALSE);
+ eap->arg = skipwhite(arg);
+ *arg = NUL;
+
+ if (pp == &eap->force_ff)
+ {
+ if (check_ff_value(eap->cmd + eap->force_ff) == FAIL)
+ return FAIL;
+ eap->force_ff = eap->cmd[eap->force_ff];
+ }
+ else if (pp == &eap->force_enc)
+ {
+ // Make 'fileencoding' lower case.
+ for (p = eap->cmd + eap->force_enc; *p != NUL; ++p)
+ *p = TOLOWER_ASC(*p);
+ }
+ else
+ {
+ // Check ++bad= argument. Must be a single-byte character, "keep" or
+ // "drop".
+ if (get_bad_opt(eap->cmd + bad_char_idx, eap) == FAIL)
+ return FAIL;
+ }
+
+ return OK;
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the list of ++opt names.
+ */
+ static char_u *
+get_argopt_name(expand_T *xp UNUSED, int idx)
+{
+ // Note: Keep this in sync with getargopt.
+ static char *(p_opt_values[]) =
+ {
+ "fileformat=",
+ "encoding=",
+ "binary",
+ "nobinary",
+ "bad=",
+ "edit",
+ };
+
+ if (idx < (int)ARRAY_LENGTH(p_opt_values))
+ return (char_u*)p_opt_values[idx];
+ return NULL;
+}
+
+/*
+ * Command-line expansion for ++opt=name.
+ */
+ int
+expand_argopt(
+ char_u *pat,
+ expand_T *xp,
+ regmatch_T *rmp,
+ char_u ***matches,
+ int *numMatches)
+{
+ if (xp->xp_pattern > xp->xp_line && *(xp->xp_pattern-1) == '=')
+ {
+ char_u *(*cb)(expand_T *, int) = NULL;
+
+ char_u *name_end = xp->xp_pattern - 1;
+ if (name_end - xp->xp_line >= 2
+ && STRNCMP(name_end - 2, "ff", 2) == 0)
+ cb = get_fileformat_name;
+ else if (name_end - xp->xp_line >= 10
+ && STRNCMP(name_end - 10, "fileformat", 10) == 0)
+ cb = get_fileformat_name;
+ else if (name_end - xp->xp_line >= 3
+ && STRNCMP(name_end - 3, "enc", 3) == 0)
+ cb = get_encoding_name;
+ else if (name_end - xp->xp_line >= 8
+ && STRNCMP(name_end - 8, "encoding", 8) == 0)
+ cb = get_encoding_name;
+ else if (name_end - xp->xp_line >= 3
+ && STRNCMP(name_end - 3, "bad", 3) == 0)
+ cb = get_bad_name;
+
+ if (cb != NULL)
+ {
+ return ExpandGeneric(
+ pat,
+ xp,
+ rmp,
+ matches,
+ numMatches,
+ cb,
+ FALSE);
+ }
+ return FAIL;
+ }
+
+ // Special handling of "ff" which acts as a short form of
+ // "fileformat", as "ff" is not a substring of it.
+ if (xp->xp_pattern_len == 2
+ && STRNCMP(xp->xp_pattern, "ff", xp->xp_pattern_len) == 0)
+ {
+ *matches = ALLOC_MULT(char_u *, 1);
+ if (*matches == NULL)
+ return FAIL;
+ *numMatches = 1;
+ (*matches)[0] = vim_strsave((char_u*)"fileformat=");
+ return OK;
+ }
+
+ return ExpandGeneric(
+ pat,
+ xp,
+ rmp,
+ matches,
+ numMatches,
+ get_argopt_name,
+ FALSE);
+}
+
+ static void
+ex_autocmd(exarg_T *eap)
+{
+ /*
+ * Disallow autocommands from .exrc and .vimrc in current
+ * directory for security reasons.
+ */
+ if (secure)
+ {
+ secure = 2;
+ eap->errmsg =
+ _(e_command_not_allowed_from_vimrc_in_current_dir_or_tag_search);
+ }
+ else if (eap->cmdidx == CMD_autocmd)
+ do_autocmd(eap, eap->arg, eap->forceit);
+ else
+ do_augroup(eap->arg, eap->forceit);
+}
+
+/*
+ * ":doautocmd": Apply the automatic commands to the current buffer.
+ */
+ static void
+ex_doautocmd(exarg_T *eap)
+{
+ char_u *arg = eap->arg;
+ int call_do_modelines = check_nomodeline(&arg);
+ int did_aucmd;
+
+ (void)do_doautocmd(arg, TRUE, &did_aucmd);
+ // Only when there is no <nomodeline>.
+ if (call_do_modelines && did_aucmd)
+ do_modelines(0);
+}
+
+/*
+ * :[N]bunload[!] [N] [bufname] unload buffer
+ * :[N]bdelete[!] [N] [bufname] delete buffer from buffer list
+ * :[N]bwipeout[!] [N] [bufname] delete buffer really
+ */
+ static void
+ex_bunload(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+ eap->errmsg = do_bufdel(
+ eap->cmdidx == CMD_bdelete ? DOBUF_DEL
+ : eap->cmdidx == CMD_bwipeout ? DOBUF_WIPE
+ : DOBUF_UNLOAD, eap->arg,
+ eap->addr_count, (int)eap->line1, (int)eap->line2, eap->forceit);
+}
+
+/*
+ * :[N]buffer [N] to buffer N
+ * :[N]sbuffer [N] to buffer N
+ */
+ static void
+ex_buffer(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+ if (*eap->arg)
+ eap->errmsg = ex_errmsg(e_trailing_characters_str, eap->arg);
+ else
+ {
+ if (eap->addr_count == 0) // default is current buffer
+ goto_buffer(eap, DOBUF_CURRENT, FORWARD, 0);
+ else
+ goto_buffer(eap, DOBUF_FIRST, FORWARD, (int)eap->line2);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+ }
+}
+
+/*
+ * :[N]bmodified [N] to next mod. buffer
+ * :[N]sbmodified [N] to next mod. buffer
+ */
+ static void
+ex_bmodified(exarg_T *eap)
+{
+ goto_buffer(eap, DOBUF_MOD, FORWARD, (int)eap->line2);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+}
+
+/*
+ * :[N]bnext [N] to next buffer
+ * :[N]sbnext [N] split and to next buffer
+ */
+ static void
+ex_bnext(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+ goto_buffer(eap, DOBUF_CURRENT, FORWARD, (int)eap->line2);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+}
+
+/*
+ * :[N]bNext [N] to previous buffer
+ * :[N]bprevious [N] to previous buffer
+ * :[N]sbNext [N] split and to previous buffer
+ * :[N]sbprevious [N] split and to previous buffer
+ */
+ static void
+ex_bprevious(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+ goto_buffer(eap, DOBUF_CURRENT, BACKWARD, (int)eap->line2);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+}
+
+/*
+ * :brewind to first buffer
+ * :bfirst to first buffer
+ * :sbrewind split and to first buffer
+ * :sbfirst split and to first buffer
+ */
+ static void
+ex_brewind(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+ goto_buffer(eap, DOBUF_FIRST, FORWARD, 0);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+}
+
+/*
+ * :blast to last buffer
+ * :sblast split and to last buffer
+ */
+ static void
+ex_blast(exarg_T *eap)
+{
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+ goto_buffer(eap, DOBUF_LAST, BACKWARD, 0);
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+}
+
+/*
+ * Check if "c" ends an Ex command.
+ * In Vim9 script does not check for white space before #.
+ */
+ int
+ends_excmd(int c)
+{
+ int comment_char = '"';
+
+ if (in_vim9script())
+ comment_char = '#';
+ return (c == NUL || c == '|' || c == comment_char || c == '\n');
+}
+
+/*
+ * Like ends_excmd() but checks that a # in Vim9 script either has "cmd" equal
+ * to "cmd_start" or has a white space character before it.
+ */
+ int
+ends_excmd2(char_u *cmd_start UNUSED, char_u *cmd)
+{
+ int c = *cmd;
+
+ if (c == NUL || c == '|' || c == '\n')
+ return TRUE;
+ if (in_vim9script())
+ // # starts a comment, #{ might be a mistake, #{{ can start a fold
+ return c == '#' && (cmd[1] != '{' || cmd[2] == '{')
+ && (cmd == cmd_start || VIM_ISWHITE(cmd[-1]));
+ return c == '"';
+}
+
+#if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA) || defined(FEAT_EVAL) \
+ || defined(PROTO)
+/*
+ * Return the next command, after the first '|' or '\n'.
+ * Return NULL if not found.
+ */
+ char_u *
+find_nextcmd(char_u *p)
+{
+ while (*p != '|' && *p != '\n')
+ {
+ if (*p == NUL)
+ return NULL;
+ ++p;
+ }
+ return (p + 1);
+}
+#endif
+
+/*
+ * Check if *p is a separator between Ex commands, skipping over white space.
+ * Return NULL if it isn't, the following character if it is.
+ */
+ char_u *
+check_nextcmd(char_u *p)
+{
+ char_u *s = skipwhite(p);
+
+ if (*s == '|' || *s == '\n')
+ return (s + 1);
+ else
+ return NULL;
+}
+
+/*
+ * If "eap->nextcmd" is not set, check for a next command at "p".
+ */
+ void
+set_nextcmd(exarg_T *eap, char_u *arg)
+{
+ char_u *p = check_nextcmd(arg);
+
+ if (eap->nextcmd == NULL)
+ eap->nextcmd = p;
+ else if (p != NULL)
+ // cannot use "| command" inside a {} block
+ semsg(_(e_cannot_use_bar_to_separate_commands_here_str), arg);
+}
+
+/*
+ * - if there are more files to edit
+ * - and this is the last window
+ * - and forceit not used
+ * - and not repeated twice on a row
+ * return FAIL and give error message if 'message' TRUE
+ * return OK otherwise
+ */
+ static int
+check_more(
+ int message, // when FALSE check only, no messages
+ int forceit)
+{
+ int n = ARGCOUNT - curwin->w_arg_idx - 1;
+
+ if (!forceit && only_one_window()
+ && ARGCOUNT > 1 && !arg_had_last && n > 0 && quitmore == 0)
+ {
+ if (message)
+ {
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+ if ((p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM))
+ && curbuf->b_fname != NULL)
+ {
+ char_u buff[DIALOG_MSG_SIZE];
+
+ vim_snprintf((char *)buff, DIALOG_MSG_SIZE,
+ NGETTEXT("%d more file to edit. Quit anyway?",
+ "%d more files to edit. Quit anyway?", n), n);
+ if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 1) == VIM_YES)
+ return OK;
+ return FAIL;
+ }
+#endif
+ semsg(NGETTEXT(e_nr_more_file_to_edit,
+ e_nr_more_files_to_edit , n), n);
+ quitmore = 2; // next try to quit is allowed
+ }
+ return FAIL;
+ }
+ return OK;
+}
+
+/*
+ * Function given to ExpandGeneric() to obtain the list of command names.
+ */
+ char_u *
+get_command_name(expand_T *xp UNUSED, int idx)
+{
+ if (idx >= (int)CMD_SIZE)
+ return expand_user_command_name(idx);
+ return cmdnames[idx].cmd_name;
+}
+
+ static void
+ex_colorscheme(exarg_T *eap)
+{
+ if (*eap->arg == NUL)
+ {
+#ifdef FEAT_EVAL
+ char_u *expr = vim_strsave((char_u *)"g:colors_name");
+ char_u *p = NULL;
+
+ if (expr != NULL)
+ {
+ ++emsg_off;
+ p = eval_to_string(expr, FALSE, FALSE);
+ --emsg_off;
+ vim_free(expr);
+ }
+ if (p != NULL)
+ {
+ msg((char *)p);
+ vim_free(p);
+ }
+ else
+ msg("default");
+#else
+ msg(_("unknown"));
+#endif
+ }
+ else if (load_colors(eap->arg) == FAIL)
+ semsg(_(e_cannot_find_color_scheme_str), eap->arg);
+
+#ifdef FEAT_VTP
+ else if (has_vtp_working())
+ {
+ // background color change requires clear + redraw
+ update_screen(UPD_CLEAR);
+ redrawcmd();
+ }
+#endif
+}
+
+ static void
+ex_highlight(exarg_T *eap)
+{
+ if (*eap->arg == NUL && eap->cmd[2] == '!')
+ msg(_("Greetings, Vim user!"));
+ do_highlight(eap->arg, eap->forceit, FALSE);
+}
+
+
+/*
+ * Call this function if we thought we were going to exit, but we won't
+ * (because of an error). May need to restore the terminal mode.
+ */
+ void
+not_exiting(void)
+{
+ exiting = FALSE;
+ settmode(TMODE_RAW);
+}
+
+ int
+before_quit_autocmds(win_T *wp, int quit_all, int forceit)
+{
+ apply_autocmds(EVENT_QUITPRE, NULL, NULL, FALSE, wp->w_buffer);
+
+ // Bail out when autocommands closed the window.
+ // Refuse to quit when the buffer in the last window is being closed (can
+ // only happen in autocommands).
+ if (!win_valid(wp)
+ || curbuf_locked()
+ || (wp->w_buffer->b_nwindows == 1 && wp->w_buffer->b_locked > 0))
+ return TRUE;
+
+ if (quit_all || (check_more(FALSE, forceit) == OK && only_one_window()))
+ {
+ apply_autocmds(EVENT_EXITPRE, NULL, NULL, FALSE, curbuf);
+ // Refuse to quit when locked or when the window was closed or the
+ // buffer in the last window is being closed (can only happen in
+ // autocommands).
+ if (!win_valid(wp) || curbuf_locked()
+ || (curbuf->b_nwindows == 1 && curbuf->b_locked > 0))
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/*
+ * ":quit": quit current window, quit Vim if the last window is closed.
+ * ":{nr}quit": quit window {nr}
+ * Also used when closing a terminal window that's the last one.
+ */
+ void
+ex_quit(exarg_T *eap)
+{
+ win_T *wp;
+
+ if (cmdwin_type != 0)
+ {
+ cmdwin_result = Ctrl_C;
+ return;
+ }
+ // Don't quit while editing the command line.
+ if (text_locked())
+ {
+ text_locked_msg();
+ return;
+ }
+ if (eap->addr_count > 0)
+ {
+ int wnr = eap->line2;
+
+ for (wp = firstwin; wp->w_next != NULL; wp = wp->w_next)
+ if (--wnr <= 0)
+ break;
+ }
+ else
+ wp = curwin;
+
+ // Refuse to quit when locked.
+ if (curbuf_locked())
+ return;
+
+ // Trigger QuitPre and maybe ExitPre
+ if (before_quit_autocmds(wp, FALSE, eap->forceit))
+ return;
+
+#ifdef FEAT_NETBEANS_INTG
+ netbeansForcedQuit = eap->forceit;
+#endif
+
+ /*
+ * If there is only one relevant window we will exit.
+ */
+ if (check_more(FALSE, eap->forceit) == OK && only_one_window())
+ exiting = TRUE;
+ if ((!buf_hide(wp->w_buffer)
+ && check_changed(wp->w_buffer, (p_awa ? CCGD_AW : 0)
+ | (eap->forceit ? CCGD_FORCEIT : 0)
+ | CCGD_EXCMD))
+ || check_more(TRUE, eap->forceit) == FAIL
+ || (only_one_window() && check_changed_any(eap->forceit, TRUE)))
+ {
+ not_exiting();
+ }
+ else
+ {
+ // quit last window
+ // Note: only_one_window() returns true, even so a help window is
+ // still open. In that case only quit, if no address has been
+ // specified. Example:
+ // :h|wincmd w|1q - don't quit
+ // :h|wincmd w|q - quit
+ if (only_one_window() && (ONE_WINDOW || eap->addr_count == 0))
+ getout(0);
+ not_exiting();
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+ // close window; may free buffer
+ win_close(wp, !buf_hide(wp->w_buffer) || eap->forceit);
+ }
+}
+
+/*
+ * ":cquit".
+ */
+ static void
+ex_cquit(exarg_T *eap UNUSED)
+{
+ // this does not always pass on the exit code to the Manx compiler. why?
+ getout(eap->addr_count > 0 ? (int)eap->line2 : EXIT_FAILURE);
+}
+
+/*
+ * Do preparations for "qall" and "wqall".
+ * Returns FAIL when quitting should be aborted.
+ */
+ int
+before_quit_all(exarg_T *eap)
+{
+ if (cmdwin_type != 0)
+ {
+ if (eap->forceit)
+ cmdwin_result = K_XF1; // ex_window() takes care of this
+ else
+ cmdwin_result = K_XF2;
+ return FAIL;
+ }
+
+ // Don't quit while editing the command line.
+ if (text_locked())
+ {
+ text_locked_msg();
+ return FAIL;
+ }
+
+ if (before_quit_autocmds(curwin, TRUE, eap->forceit))
+ return FAIL;
+
+ return OK;
+}
+
+/*
+ * ":qall": try to quit all windows
+ */
+ static void
+ex_quit_all(exarg_T *eap)
+{
+ if (before_quit_all(eap) == FAIL)
+ return;
+ exiting = TRUE;
+ if (eap->forceit || !check_changed_any(FALSE, FALSE))
+ getout(0);
+ not_exiting();
+}
+
+/*
+ * ":close": close current window, unless it is the last one
+ */
+ static void
+ex_close(exarg_T *eap)
+{
+ win_T *win;
+ int winnr = 0;
+ if (cmdwin_type != 0)
+ cmdwin_result = Ctrl_C;
+ else
+ if (!text_locked() && !curbuf_locked())
+ {
+ if (eap->addr_count == 0)
+ ex_win_close(eap->forceit, curwin, NULL);
+ else
+ {
+ FOR_ALL_WINDOWS(win)
+ {
+ winnr++;
+ if (winnr == eap->line2)
+ break;
+ }
+ if (win == NULL)
+ win = lastwin;
+ ex_win_close(eap->forceit, win, NULL);
+ }
+ }
+}
+
+#ifdef FEAT_QUICKFIX
+/*
+ * ":pclose": Close any preview window.
+ */
+ static void
+ex_pclose(exarg_T *eap)
+{
+ win_T *win;
+
+ // First close any normal window.
+ FOR_ALL_WINDOWS(win)
+ if (win->w_p_pvw)
+ {
+ ex_win_close(eap->forceit, win, NULL);
+ return;
+ }
+# ifdef FEAT_PROP_POPUP
+ // Also when 'previewpopup' is empty, it might have been cleared.
+ popup_close_preview();
+# endif
+}
+#endif
+
+/*
+ * Close window "win" and take care of handling closing the last window for a
+ * modified buffer.
+ */
+ static void
+ex_win_close(
+ int forceit,
+ win_T *win,
+ tabpage_T *tp) // NULL or the tab page "win" is in
+{
+ int need_hide;
+ buf_T *buf = win->w_buffer;
+
+ // Never close the autocommand window.
+ if (is_aucmd_win(win))
+ {
+ emsg(_(e_cannot_close_autocmd_or_popup_window));
+ return;
+ }
+ if (window_layout_locked(CMD_close))
+ return;
+
+ need_hide = (bufIsChanged(buf) && buf->b_nwindows <= 1);
+ if (need_hide && !buf_hide(buf) && !forceit)
+ {
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+ if ((p_confirm || (cmdmod.cmod_flags & CMOD_CONFIRM)) && p_write)
+ {
+# ifdef FEAT_TERMINAL
+ if (term_job_running(buf->b_term))
+ {
+ if (term_confirm_stop(buf) == FAIL)
+ return;
+ // Manually kill the terminal here because this command will
+ // hide it otherwise.
+ free_terminal(buf);
+ need_hide = FALSE;
+ }
+ else
+# endif
+ {
+ bufref_T bufref;
+
+ set_bufref(&bufref, buf);
+ dialog_changed(buf, FALSE);
+ if (bufref_valid(&bufref) && bufIsChanged(buf))
+ return;
+ need_hide = FALSE;
+ }
+ }
+ else
+#endif
+ {
+ no_write_message();
+ return;
+ }
+ }
+
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+
+ // free buffer when not hiding it or when it's a scratch buffer
+ if (tp == NULL)
+ win_close(win, !need_hide && !buf_hide(buf));
+ else
+ win_close_othertab(win, !need_hide && !buf_hide(buf), tp);
+}
+
+/*
+ * Handle the argument for a tabpage related ex command.
+ * Returns a tabpage number.
+ * When an error is encountered then eap->errmsg is set.
+ */
+ static int
+get_tabpage_arg(exarg_T *eap)
+{
+ int tab_number;
+ int unaccept_arg0 = (eap->cmdidx == CMD_tabmove) ? 0 : 1;
+
+ if (eap->arg && *eap->arg != NUL)
+ {
+ char_u *p = eap->arg;
+ char_u *p_save;
+ int relative = 0; // argument +N/-N means: go to N places to the
+ // right/left relative to the current position.
+
+ if (*p == '-')
+ {
+ relative = -1;
+ p++;
+ }
+ else if (*p == '+')
+ {
+ relative = 1;
+ p++;
+ }
+
+ p_save = p;
+ tab_number = getdigits(&p);
+
+ if (relative == 0)
+ {
+ if (STRCMP(p, "$") == 0)
+ tab_number = LAST_TAB_NR;
+ else if (STRCMP(p, "#") == 0)
+ if (valid_tabpage(lastused_tabpage))
+ tab_number = tabpage_index(lastused_tabpage);
+ else
+ {
+ eap->errmsg = ex_errmsg(e_invalid_value_for_argument_str,
+ eap->arg);
+ tab_number = 0;
+ goto theend;
+ }
+ else if (p == p_save || *p_save == '-' || *p != NUL
+ || tab_number > LAST_TAB_NR)
+ {
+ // No numbers as argument.
+ eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
+ goto theend;
+ }
+ }
+ else
+ {
+ if (*p_save == NUL)
+ tab_number = 1;
+ else if (p == p_save || *p_save == '-' || *p != NUL
+ || tab_number == 0)
+ {
+ // No numbers as argument.
+ eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
+ goto theend;
+ }
+ tab_number = tab_number * relative + tabpage_index(curtab);
+ if (!unaccept_arg0 && relative == -1)
+ --tab_number;
+ }
+ if (tab_number < unaccept_arg0 || tab_number > LAST_TAB_NR)
+ eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
+ }
+ else if (eap->addr_count > 0)
+ {
+ if (unaccept_arg0 && eap->line2 == 0)
+ {
+ eap->errmsg = _(e_invalid_range);
+ tab_number = 0;
+ }
+ else
+ {
+ tab_number = eap->line2;
+ if (!unaccept_arg0 && *skipwhite(*eap->cmdlinep) == '-')
+ {
+ --tab_number;
+ if (tab_number < unaccept_arg0)
+ eap->errmsg = _(e_invalid_range);
+ }
+ }
+ }
+ else
+ {
+ switch (eap->cmdidx)
+ {
+ case CMD_tabnext:
+ tab_number = tabpage_index(curtab) + 1;
+ if (tab_number > LAST_TAB_NR)
+ tab_number = 1;
+ break;
+ case CMD_tabmove:
+ tab_number = LAST_TAB_NR;
+ break;
+ default:
+ tab_number = tabpage_index(curtab);
+ }
+ }
+
+theend:
+ return tab_number;
+}
+
+/*
+ * ":tabclose": close current tab page, unless it is the last one.
+ * ":tabclose N": close tab page N.
+ */
+ static void
+ex_tabclose(exarg_T *eap)
+{
+ tabpage_T *tp;
+ int tab_number;
+
+ if (cmdwin_type != 0)
+ {
+ cmdwin_result = K_IGNORE;
+ return;
+ }
+
+ if (first_tabpage->tp_next == NULL)
+ {
+ emsg(_(e_cannot_close_last_tab_page));
+ return;
+ }
+
+ if (window_layout_locked(CMD_tabclose))
+ return;
+
+ tab_number = get_tabpage_arg(eap);
+ if (eap->errmsg != NULL)
+ return;
+
+ tp = find_tabpage(tab_number);
+ if (tp == NULL)
+ {
+ beep_flush();
+ return;
+ }
+ if (tp != curtab)
+ {
+ tabpage_close_other(tp, eap->forceit);
+ return;
+ }
+ else if (!text_locked() && !curbuf_locked())
+ tabpage_close(eap->forceit);
+}
+
+/*
+ * ":tabonly": close all tab pages except the current one
+ */
+ static void
+ex_tabonly(exarg_T *eap)
+{
+ tabpage_T *tp;
+ int done;
+ int tab_number;
+
+ if (cmdwin_type != 0)
+ {
+ cmdwin_result = K_IGNORE;
+ return;
+ }
+
+ if (first_tabpage->tp_next == NULL)
+ {
+ msg(_("Already only one tab page"));
+ return;
+ }
+
+ if (window_layout_locked(CMD_tabonly))
+ return;
+
+ tab_number = get_tabpage_arg(eap);
+ if (eap->errmsg != NULL)
+ return;
+
+ goto_tabpage(tab_number);
+ // Repeat this up to a 1000 times, because autocommands may
+ // mess up the lists.
+ for (done = 0; done < 1000; ++done)
+ {
+ FOR_ALL_TABPAGES(tp)
+ if (tp->tp_topframe != topframe)
+ {
+ tabpage_close_other(tp, eap->forceit);
+ // if we failed to close it quit
+ if (valid_tabpage(tp))
+ done = 1000;
+ // start over, "tp" is now invalid
+ break;
+ }
+ if (first_tabpage->tp_next == NULL)
+ break;
+ }
+}
+
+/*
+ * Close the current tab page.
+ */
+ void
+tabpage_close(int forceit)
+{
+ if (window_layout_locked(CMD_tabclose))
+ return;
+
+ // First close all the windows but the current one. If that worked then
+ // close the last window in this tab, that will close it.
+ if (!ONE_WINDOW)
+ close_others(TRUE, forceit);
+ if (ONE_WINDOW)
+ ex_win_close(forceit, curwin, NULL);
+# ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+# endif
+}
+
+/*
+ * Close tab page "tp", which is not the current tab page.
+ * Note that autocommands may make "tp" invalid.
+ * Also takes care of the tab pages line disappearing when closing the
+ * last-but-one tab page.
+ */
+ void
+tabpage_close_other(tabpage_T *tp, int forceit)
+{
+ int done = 0;
+ win_T *wp;
+
+ // Limit to 1000 windows, autocommands may add a window while we close
+ // one. OK, so I'm paranoid...
+ while (++done < 1000)
+ {
+ wp = tp->tp_firstwin;
+ ex_win_close(forceit, wp, tp);
+
+ // Autocommands may delete the tab page under our fingers and we may
+ // fail to close a window with a modified buffer.
+ if (!valid_tabpage(tp) || tp->tp_firstwin == wp)
+ break;
+ }
+
+ apply_autocmds(EVENT_TABCLOSED, NULL, NULL, FALSE, curbuf);
+}
+
+/*
+ * ":only".
+ */
+ static void
+ex_only(exarg_T *eap)
+{
+ if (window_layout_locked(CMD_only))
+ return;
+# ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+# endif
+ if (eap->addr_count > 0)
+ {
+ win_T *wp;
+ int wnr = eap->line2;
+ for (wp = firstwin; --wnr > 0; )
+ {
+ if (wp->w_next == NULL)
+ break;
+ else
+ wp = wp->w_next;
+ }
+ win_goto(wp);
+ }
+ close_others(TRUE, eap->forceit);
+}
+
+ static void
+ex_hide(exarg_T *eap UNUSED)
+{
+ // ":hide" or ":hide | cmd": hide current window
+ if (eap->skip)
+ return;
+
+ if (window_layout_locked(CMD_hide))
+ return;
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+ if (eap->addr_count == 0)
+ win_close(curwin, FALSE); // don't free buffer
+ else
+ {
+ int winnr = 0;
+ win_T *win;
+
+ FOR_ALL_WINDOWS(win)
+ {
+ winnr++;
+ if (winnr == eap->line2)
+ break;
+ }
+ if (win == NULL)
+ win = lastwin;
+ win_close(win, FALSE);
+ }
+}
+
+/*
+ * ":stop" and ":suspend": Suspend Vim.
+ */
+ void
+ex_stop(exarg_T *eap)
+{
+ /*
+ * Disallow suspending for "rvim".
+ */
+ if (check_restricted())
+ return;
+
+ if (!eap->forceit)
+ autowrite_all();
+ apply_autocmds(EVENT_VIMSUSPEND, NULL, NULL, FALSE, NULL);
+ windgoto((int)Rows - 1, 0);
+ out_char('\n');
+ out_flush();
+ stoptermcap();
+ out_flush(); // needed for SUN to restore xterm buffer
+ mch_restore_title(SAVE_RESTORE_BOTH); // restore window titles
+ ui_suspend(); // call machine specific function
+ maketitle();
+ resettitle(); // force updating the title
+ starttermcap();
+ scroll_start(); // scroll screen before redrawing
+ redraw_later_clear();
+ shell_resized(); // may have resized window
+ apply_autocmds(EVENT_VIMRESUME, NULL, NULL, FALSE, NULL);
+}
+
+/*
+ * ":exit", ":xit" and ":wq": Write file and quit the current window.
+ */
+ static void
+ex_exit(exarg_T *eap)
+{
+#ifdef FEAT_EVAL
+ if (not_in_vim9(eap) == FAIL)
+ return;
+#endif
+ if (cmdwin_type != 0)
+ {
+ cmdwin_result = Ctrl_C;
+ return;
+ }
+ // Don't quit while editing the command line.
+ if (text_locked())
+ {
+ text_locked_msg();
+ return;
+ }
+
+ /*
+ * we plan to exit if there is only one relevant window
+ */
+ if (check_more(FALSE, eap->forceit) == OK && only_one_window())
+ exiting = TRUE;
+
+ // Write the buffer for ":wq" or when it was changed.
+ // Trigger QuitPre and ExitPre.
+ // Check if we can exit now, after autocommands have changed things.
+ if (((eap->cmdidx == CMD_wq || curbufIsChanged()) && do_write(eap) == FAIL)
+ || before_quit_autocmds(curwin, FALSE, eap->forceit)
+ || check_more(TRUE, eap->forceit) == FAIL
+ || (only_one_window() && check_changed_any(eap->forceit, FALSE)))
+ {
+ not_exiting();
+ }
+ else
+ {
+ if (only_one_window()) // quit last window, exit Vim
+ getout(0);
+ not_exiting();
+# ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+# endif
+ // Quit current window, may free the buffer.
+ win_close(curwin, !buf_hide(curwin->w_buffer));
+ }
+}
+
+/*
+ * ":print", ":list", ":number".
+ */
+ static void
+ex_print(exarg_T *eap)
+{
+ if (curbuf->b_ml.ml_flags & ML_EMPTY)
+ emsg(_(e_empty_buffer));
+ else
+ {
+ for ( ;!got_int; ui_breakcheck())
+ {
+ print_line(eap->line1,
+ (eap->cmdidx == CMD_number || eap->cmdidx == CMD_pound
+ || (eap->flags & EXFLAG_NR)),
+ eap->cmdidx == CMD_list || (eap->flags & EXFLAG_LIST));
+ if (++eap->line1 > eap->line2)
+ break;
+ out_flush(); // show one line at a time
+ }
+ setpcmark();
+ // put cursor at last line
+ curwin->w_cursor.lnum = eap->line2;
+ beginline(BL_SOL | BL_FIX);
+ }
+
+ ex_no_reprint = TRUE;
+}
+
+#ifdef FEAT_BYTEOFF
+ static void
+ex_goto(exarg_T *eap)
+{
+ goto_byte(eap->line2);
+}
+#endif
+
+/*
+ * ":shell".
+ */
+ static void
+ex_shell(exarg_T *eap UNUSED)
+{
+ do_shell(NULL, 0);
+}
+
+#if defined(HAVE_DROP_FILE) || defined(PROTO)
+
+static int drop_busy = FALSE;
+static int drop_filec;
+static char_u **drop_filev = NULL;
+static int drop_split;
+static void (*drop_callback)(void *);
+static void *drop_cookie;
+
+ static void
+handle_drop_internal(void)
+{
+ exarg_T ea;
+ int save_msg_scroll = msg_scroll;
+
+ // Setting the argument list may cause screen updates and being called
+ // recursively. Avoid that by setting drop_busy.
+ drop_busy = TRUE;
+
+ // Check whether the current buffer is changed. If so, we will need
+ // to split the current window or data could be lost.
+ // We don't need to check if the 'hidden' option is set, as in this
+ // case the buffer won't be lost.
+ if (!buf_hide(curbuf) && !drop_split)
+ {
+ ++emsg_off;
+ drop_split = check_changed(curbuf, CCGD_AW);
+ --emsg_off;
+ }
+ if (drop_split)
+ {
+ if (win_split(0, 0) == FAIL)
+ return;
+ RESET_BINDING(curwin);
+
+ // When splitting the window, create a new alist. Otherwise the
+ // existing one is overwritten.
+ alist_unlink(curwin->w_alist);
+ alist_new();
+ }
+
+ /*
+ * Set up the new argument list.
+ */
+ alist_set(ALIST(curwin), drop_filec, drop_filev, FALSE, NULL, 0);
+
+ /*
+ * Move to the first file.
+ */
+ // Fake up a minimal "next" command for do_argfile()
+ CLEAR_FIELD(ea);
+ ea.cmd = (char_u *)"next";
+ do_argfile(&ea, 0);
+
+ // do_ecmd() may set need_start_insertmode, but since we never left Insert
+ // mode that is not needed here.
+ need_start_insertmode = FALSE;
+
+ // Restore msg_scroll, otherwise a following command may cause scrolling
+ // unexpectedly. The screen will be redrawn by the caller, thus
+ // msg_scroll being set by displaying a message is irrelevant.
+ msg_scroll = save_msg_scroll;
+
+ if (drop_callback != NULL)
+ drop_callback(drop_cookie);
+
+ drop_filev = NULL;
+ drop_busy = FALSE;
+}
+
+/*
+ * Handle a file drop. The code is here because a drop is *nearly* like an
+ * :args command, but not quite (we have a list of exact filenames, so we
+ * don't want to (a) parse a command line, or (b) expand wildcards). So the
+ * code is very similar to :args and hence needs access to a lot of the static
+ * functions in this file.
+ *
+ * The "filev" list must have been allocated using alloc(), as should each item
+ * in the list. This function takes over responsibility for freeing the "filev"
+ * list.
+ */
+ void
+handle_drop(
+ int filec, // the number of files dropped
+ char_u **filev, // the list of files dropped
+ int split, // force splitting the window
+ void (*callback)(void *), // to be called after setting the argument
+ // list
+ void *cookie) // argument for "callback" (allocated)
+{
+ // Cannot handle recursive drops, finish the pending one.
+ if (drop_busy)
+ {
+ FreeWild(filec, filev);
+ vim_free(cookie);
+ return;
+ }
+
+ // When calling handle_drop() more than once in a row we only use the last
+ // one.
+ if (drop_filev != NULL)
+ {
+ FreeWild(drop_filec, drop_filev);
+ vim_free(drop_cookie);
+ }
+
+ drop_filec = filec;
+ drop_filev = filev;
+ drop_split = split;
+ drop_callback = callback;
+ drop_cookie = cookie;
+
+ // Postpone this when:
+ // - editing the command line
+ // - not possible to change the current buffer
+ // - updating the screen
+ // As it may change buffers and window structures that are in use and cause
+ // freed memory to be used.
+ if (text_locked() || curbuf_locked() || updating_screen)
+ return;
+
+ handle_drop_internal();
+}
+
+/*
+ * To be called when text is unlocked, curbuf is unlocked or updating_screen is
+ * reset: Handle a postponed drop.
+ */
+ void
+handle_any_postponed_drop(void)
+{
+ if (!drop_busy && drop_filev != NULL
+ && !text_locked() && !curbuf_locked() && !updating_screen)
+ handle_drop_internal();
+}
+#endif
+
+/*
+ * ":preserve".
+ */
+ static void
+ex_preserve(exarg_T *eap UNUSED)
+{
+ curbuf->b_flags |= BF_PRESERVED;
+ ml_preserve(curbuf, TRUE);
+}
+
+/*
+ * ":recover".
+ */
+ static void
+ex_recover(exarg_T *eap)
+{
+ // Set recoverymode right away to avoid the ATTENTION prompt.
+ recoverymode = TRUE;
+ if (!check_changed(curbuf, (p_awa ? CCGD_AW : 0)
+ | CCGD_MULTWIN
+ | (eap->forceit ? CCGD_FORCEIT : 0)
+ | CCGD_EXCMD)
+
+ && (*eap->arg == NUL
+ || setfname(curbuf, eap->arg, NULL, TRUE) == OK))
+ ml_recover(TRUE);
+ recoverymode = FALSE;
+}
+
+/*
+ * Command modifier used in a wrong way. Also for other commands that can't
+ * appear at the toplevel.
+ */
+ static void
+ex_wrongmodifier(exarg_T *eap)
+{
+ eap->errmsg = ex_errmsg(e_invalid_command_str, eap->cmd);
+}
+
+/*
+ * :sview [+command] file split window with new file, read-only
+ * :split [[+command] file] split window with current or new file
+ * :vsplit [[+command] file] split window vertically with current or new file
+ * :new [[+command] file] split window with no or new file
+ * :vnew [[+command] file] split vertically window with no or new file
+ * :sfind [+command] file split window with file in 'path'
+ *
+ * :tabedit open new Tab page with empty window
+ * :tabedit [+command] file open new Tab page and edit "file"
+ * :tabnew [[+command] file] just like :tabedit
+ * :tabfind [+command] file open new Tab page and find "file"
+ */
+ void
+ex_splitview(exarg_T *eap)
+{
+ win_T *old_curwin = curwin;
+ char_u *fname = NULL;
+#ifdef FEAT_BROWSE
+ char_u dot_path[] = ".";
+ int save_cmod_flags = cmdmod.cmod_flags;
+#endif
+ int use_tab = eap->cmdidx == CMD_tabedit
+ || eap->cmdidx == CMD_tabfind
+ || eap->cmdidx == CMD_tabnew;
+
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+
+#ifdef FEAT_QUICKFIX
+ // A ":split" in the quickfix window works like ":new". Don't want two
+ // quickfix windows. But it's OK when doing ":tab split".
+ if (bt_quickfix(curbuf) && cmdmod.cmod_tab == 0)
+ {
+ if (eap->cmdidx == CMD_split)
+ eap->cmdidx = CMD_new;
+ if (eap->cmdidx == CMD_vsplit)
+ eap->cmdidx = CMD_vnew;
+ }
+#endif
+
+ if (eap->cmdidx == CMD_sfind || eap->cmdidx == CMD_tabfind)
+ {
+ char_u *file_to_find = NULL;
+ char *search_ctx = NULL;
+ fname = find_file_in_path(eap->arg, (int)STRLEN(eap->arg),
+ FNAME_MESS, TRUE, curbuf->b_ffname,
+ &file_to_find, &search_ctx);
+ vim_free(file_to_find);
+ vim_findfile_cleanup(search_ctx);
+ if (fname == NULL)
+ goto theend;
+ eap->arg = fname;
+ }
+# ifdef FEAT_BROWSE
+ else if ((cmdmod.cmod_flags & CMOD_BROWSE)
+ && eap->cmdidx != CMD_vnew
+ && eap->cmdidx != CMD_new)
+ {
+ if (
+# ifdef FEAT_GUI
+ !gui.in_use &&
+# endif
+ au_has_group((char_u *)"FileExplorer"))
+ {
+ // No browsing supported but we do have the file explorer:
+ // Edit the directory.
+ if (*eap->arg == NUL || !mch_isdir(eap->arg))
+ eap->arg = dot_path;
+ }
+ else
+ {
+ fname = do_browse(0, (char_u *)(use_tab
+ ? _("Edit File in new tab page")
+ : _("Edit File in new window")),
+ eap->arg, NULL, NULL, NULL, curbuf);
+ if (fname == NULL)
+ goto theend;
+ eap->arg = fname;
+ }
+ }
+ cmdmod.cmod_flags &= ~CMOD_BROWSE; // Don't browse again in do_ecmd().
+#endif
+
+ /*
+ * Either open new tab page or split the window.
+ */
+ if (use_tab)
+ {
+ if (win_new_tabpage(cmdmod.cmod_tab != 0 ? cmdmod.cmod_tab
+ : eap->addr_count == 0 ? 0
+ : (int)eap->line2 + 1) != FAIL)
+ {
+ do_exedit(eap, old_curwin);
+
+ // set the alternate buffer for the window we came from
+ if (curwin != old_curwin
+ && win_valid(old_curwin)
+ && old_curwin->w_buffer != curbuf
+ && (cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
+ old_curwin->w_alt_fnum = curbuf->b_fnum;
+ }
+ }
+ else if (win_split(eap->addr_count > 0 ? (int)eap->line2 : 0,
+ *eap->cmd == 'v' ? WSP_VERT : 0) != FAIL)
+ {
+ // Reset 'scrollbind' when editing another file, but keep it when
+ // doing ":split" without arguments.
+ if (*eap->arg != NUL)
+ RESET_BINDING(curwin);
+ else
+ do_check_scrollbind(FALSE);
+ do_exedit(eap, old_curwin);
+ }
+
+# ifdef FEAT_BROWSE
+ cmdmod.cmod_flags = save_cmod_flags;
+# endif
+
+theend:
+ vim_free(fname);
+}
+
+/*
+ * Open a new tab page.
+ */
+ void
+tabpage_new(void)
+{
+ exarg_T ea;
+
+ CLEAR_FIELD(ea);
+ ea.cmdidx = CMD_tabnew;
+ ea.cmd = (char_u *)"tabn";
+ ea.arg = (char_u *)"";
+ ex_splitview(&ea);
+}
+
+/*
+ * :tabnext command
+ */
+ static void
+ex_tabnext(exarg_T *eap)
+{
+ int tab_number;
+
+ if (ERROR_IF_POPUP_WINDOW)
+ return;
+ switch (eap->cmdidx)
+ {
+ case CMD_tabfirst:
+ case CMD_tabrewind:
+ goto_tabpage(1);
+ break;
+ case CMD_tablast:
+ goto_tabpage(9999);
+ break;
+ case CMD_tabprevious:
+ case CMD_tabNext:
+ if (eap->arg && *eap->arg != NUL)
+ {
+ char_u *p = eap->arg;
+ char_u *p_save = p;
+
+ tab_number = getdigits(&p);
+ if (p == p_save || *p_save == '-' || *p != NUL
+ || tab_number == 0)
+ {
+ // No numbers as argument.
+ eap->errmsg = ex_errmsg(e_invalid_argument_str, eap->arg);
+ return;
+ }
+ }
+ else
+ {
+ if (eap->addr_count == 0)
+ tab_number = 1;
+ else
+ {
+ tab_number = eap->line2;
+ if (tab_number < 1)
+ {
+ eap->errmsg = _(e_invalid_range);
+ return;
+ }
+ }
+ }
+ goto_tabpage(-tab_number);
+ break;
+ default: // CMD_tabnext
+ tab_number = get_tabpage_arg(eap);
+ if (eap->errmsg == NULL)
+ goto_tabpage(tab_number);
+ break;
+ }
+}
+
+/*
+ * :tabmove command
+ */
+ static void
+ex_tabmove(exarg_T *eap)
+{
+ int tab_number;
+
+ tab_number = get_tabpage_arg(eap);
+ if (eap->errmsg == NULL)
+ tabpage_move(tab_number);
+}
+
+/*
+ * :tabs command: List tabs and their contents.
+ */
+ static void
+ex_tabs(exarg_T *eap UNUSED)
+{
+ tabpage_T *tp;
+ win_T *wp;
+ int tabcount = 1;
+
+ msg_start();
+ msg_scroll = TRUE;
+ for (tp = first_tabpage; tp != NULL && !got_int; tp = tp->tp_next)
+ {
+ msg_putchar('\n');
+ vim_snprintf((char *)IObuff, IOSIZE, _("Tab page %d"), tabcount++);
+ msg_outtrans_attr(IObuff, HL_ATTR(HLF_T));
+ out_flush(); // output one line at a time
+ ui_breakcheck();
+
+ if (tp == curtab)
+ wp = firstwin;
+ else
+ wp = tp->tp_firstwin;
+ for ( ; wp != NULL && !got_int; wp = wp->w_next)
+ {
+ msg_putchar('\n');
+ msg_putchar(wp == curwin ? '>' : ' ');
+ msg_putchar(' ');
+ msg_putchar(bufIsChanged(wp->w_buffer) ? '+' : ' ');
+ msg_putchar(' ');
+ if (buf_spname(wp->w_buffer) != NULL)
+ vim_strncpy(IObuff, buf_spname(wp->w_buffer), IOSIZE - 1);
+ else
+ home_replace(wp->w_buffer, wp->w_buffer->b_fname,
+ IObuff, IOSIZE, TRUE);
+ msg_outtrans(IObuff);
+ out_flush(); // output one line at a time
+ ui_breakcheck();
+ }
+ }
+}
+
+/*
+ * ":mode": Set screen mode.
+ * If no argument given, just get the screen size and redraw.
+ */
+ static void
+ex_mode(exarg_T *eap)
+{
+ if (*eap->arg == NUL)
+ shell_resized();
+ else
+ emsg(_(e_screen_mode_setting_not_supported));
+}
+
+/*
+ * ":resize".
+ * set, increment or decrement current window height
+ */
+ static void
+ex_resize(exarg_T *eap)
+{
+ int n;
+ win_T *wp = curwin;
+
+ if (eap->addr_count > 0)
+ {
+ n = eap->line2;
+ for (wp = firstwin; wp->w_next != NULL && --n > 0; wp = wp->w_next)
+ ;
+ }
+
+# ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+# endif
+ n = atol((char *)eap->arg);
+ if (cmdmod.cmod_split & WSP_VERT)
+ {
+ if (*eap->arg == '-' || *eap->arg == '+')
+ n += wp->w_width;
+ else if (n == 0 && eap->arg[0] == NUL) // default is very wide
+ n = 9999;
+ win_setwidth_win(n, wp);
+ }
+ else
+ {
+ if (*eap->arg == '-' || *eap->arg == '+')
+ n += wp->w_height;
+ else if (n == 0 && eap->arg[0] == NUL) // default is very high
+ n = 9999;
+ win_setheight_win(n, wp);
+ }
+}
+
+/*
+ * ":find [+command] <file>" command.
+ */
+ static void
+ex_find(exarg_T *eap)
+{
+ char_u *fname;
+ int count;
+ char_u *file_to_find = NULL;
+ char *search_ctx = NULL;
+
+ fname = find_file_in_path(eap->arg, (int)STRLEN(eap->arg), FNAME_MESS,
+ TRUE, curbuf->b_ffname, &file_to_find, &search_ctx);
+ if (eap->addr_count > 0)
+ {
+ // Repeat finding the file "count" times. This matters when it appears
+ // several times in the path.
+ count = eap->line2;
+ while (fname != NULL && --count > 0)
+ {
+ vim_free(fname);
+ fname = find_file_in_path(NULL, 0, FNAME_MESS,
+ FALSE, curbuf->b_ffname, &file_to_find, &search_ctx);
+ }
+ }
+ VIM_CLEAR(file_to_find);
+ vim_findfile_cleanup(search_ctx);
+
+ if (fname == NULL)
+ return;
+
+ eap->arg = fname;
+ do_exedit(eap, NULL);
+ vim_free(fname);
+}
+
+/*
+ * ":open" simulation: for now works just like ":visual".
+ */
+ static void
+ex_open(exarg_T *eap)
+{
+ regmatch_T regmatch;
+ char_u *p;
+
+#ifdef FEAT_EVAL
+ if (not_in_vim9(eap) == FAIL)
+ return;
+#endif
+ curwin->w_cursor.lnum = eap->line2;
+ beginline(BL_SOL | BL_FIX);
+ if (*eap->arg == '/')
+ {
+ // ":open /pattern/": put cursor in column found with pattern
+ ++eap->arg;
+ p = skip_regexp(eap->arg, '/', magic_isset());
+ *p = NUL;
+ regmatch.regprog = vim_regcomp(eap->arg, magic_isset() ? RE_MAGIC : 0);
+ if (regmatch.regprog != NULL)
+ {
+ // make a copy of the line, when searching for a mark it might be
+ // flushed
+ char_u *line = vim_strsave(ml_get_curline());
+
+ regmatch.rm_ic = p_ic;
+ if (vim_regexec(&regmatch, line, (colnr_T)0))
+ curwin->w_cursor.col = (colnr_T)(regmatch.startp[0] - line);
+ else
+ emsg(_(e_no_match));
+ vim_regfree(regmatch.regprog);
+ vim_free(line);
+ }
+ // Move to the NUL, ignore any other arguments.
+ eap->arg += STRLEN(eap->arg);
+ }
+ check_cursor();
+
+ eap->cmdidx = CMD_visual;
+ do_exedit(eap, NULL);
+}
+
+/*
+ * ":edit", ":badd", ":balt", ":visual".
+ */
+ static void
+ex_edit(exarg_T *eap)
+{
+ do_exedit(eap, NULL);
+}
+
+/*
+ * ":edit <file>" command and alike.
+ */
+ void
+do_exedit(
+ exarg_T *eap,
+ win_T *old_curwin) // curwin before doing a split or NULL
+{
+ int n;
+ int need_hide;
+ int exmode_was = exmode_active;
+
+ if ((eap->cmdidx != CMD_pedit && ERROR_IF_POPUP_WINDOW)
+ || ERROR_IF_TERM_POPUP_WINDOW)
+ return;
+ /*
+ * ":vi" command ends Ex mode.
+ */
+ if (exmode_active && (eap->cmdidx == CMD_visual
+ || eap->cmdidx == CMD_view))
+ {
+ exmode_active = FALSE;
+ ex_pressedreturn = FALSE;
+ if (*eap->arg == NUL)
+ {
+ // Special case: ":global/pat/visual\NLvi-commands"
+ if (global_busy)
+ {
+ if (eap->nextcmd != NULL)
+ {
+ stuffReadbuff(eap->nextcmd);
+ eap->nextcmd = NULL;
+ }
+
+ if (exmode_was != EXMODE_VIM)
+ settmode(TMODE_RAW);
+ int save_RedrawingDisabled = RedrawingDisabled;
+ RedrawingDisabled = 0;
+ int save_nwr = no_wait_return;
+ no_wait_return = 0;
+ need_wait_return = FALSE;
+ int save_ms = msg_scroll;
+ msg_scroll = 0;
+#ifdef FEAT_GUI
+ int save_he = hold_gui_events;
+ hold_gui_events = 0;
+#endif
+ set_must_redraw(UPD_CLEAR);
+ pending_exmode_active = TRUE;
+
+ main_loop(FALSE, TRUE);
+
+ pending_exmode_active = FALSE;
+ RedrawingDisabled = save_RedrawingDisabled;
+ no_wait_return = save_nwr;
+ msg_scroll = save_ms;
+#ifdef FEAT_GUI
+ hold_gui_events = save_he;
+#endif
+ }
+ return;
+ }
+ }
+
+ if ((eap->cmdidx == CMD_new
+ || eap->cmdidx == CMD_tabnew
+ || eap->cmdidx == CMD_tabedit
+ || eap->cmdidx == CMD_vnew) && *eap->arg == NUL)
+ {
+ // ":new" or ":tabnew" without argument: edit a new empty buffer
+ setpcmark();
+ (void)do_ecmd(0, NULL, NULL, eap, ECMD_ONE,
+ ECMD_HIDE + (eap->forceit ? ECMD_FORCEIT : 0),
+ old_curwin == NULL ? curwin : NULL);
+ }
+ else if ((eap->cmdidx != CMD_split && eap->cmdidx != CMD_vsplit)
+ || *eap->arg != NUL
+#ifdef FEAT_BROWSE
+ || (cmdmod.cmod_flags & CMOD_BROWSE)
+#endif
+ )
+ {
+ // Can't edit another file when "textlock" or "curbuf_lock" is set.
+ // Only ":edit" or ":script" can bring us here, others are stopped
+ // earlier.
+ if (*eap->arg != NUL && text_or_buf_locked())
+ return;
+
+ n = readonlymode;
+ if (eap->cmdidx == CMD_view || eap->cmdidx == CMD_sview)
+ readonlymode = TRUE;
+ else if (eap->cmdidx == CMD_enew)
+ readonlymode = FALSE; // 'readonly' doesn't make sense in an
+ // empty buffer
+ if (eap->cmdidx != CMD_balt && eap->cmdidx != CMD_badd)
+ setpcmark();
+ if (do_ecmd(0, (eap->cmdidx == CMD_enew ? NULL : eap->arg),
+ NULL, eap,
+ // ":edit" goes to first line if Vi compatible
+ (*eap->arg == NUL && eap->do_ecmd_lnum == 0
+ && vim_strchr(p_cpo, CPO_GOTO1) != NULL)
+ ? ECMD_ONE : eap->do_ecmd_lnum,
+ (buf_hide(curbuf) ? ECMD_HIDE : 0)
+ + (eap->forceit ? ECMD_FORCEIT : 0)
+ // after a split we can use an existing buffer
+ + (old_curwin != NULL ? ECMD_OLDBUF : 0)
+ + (eap->cmdidx == CMD_badd ? ECMD_ADDBUF : 0)
+ + (eap->cmdidx == CMD_balt ? ECMD_ALTBUF : 0)
+ , old_curwin == NULL ? curwin : NULL) == FAIL)
+ {
+ // Editing the file failed. If the window was split, close it.
+ if (old_curwin != NULL)
+ {
+ need_hide = (curbufIsChanged() && curbuf->b_nwindows <= 1);
+ if (!need_hide || buf_hide(curbuf))
+ {
+#if defined(FEAT_EVAL)
+ cleanup_T cs;
+
+ // Reset the error/interrupt/exception state here so that
+ // aborting() returns FALSE when closing a window.
+ enter_cleanup(&cs);
+#endif
+#ifdef FEAT_GUI
+ need_mouse_correct = TRUE;
+#endif
+ win_close(curwin, !need_hide && !buf_hide(curbuf));
+
+#if defined(FEAT_EVAL)
+ // Restore the error/interrupt/exception state if not
+ // discarded by a new aborting error, interrupt, or
+ // uncaught exception.
+ leave_cleanup(&cs);
+#endif
+ }
+ }
+ }
+ else if (readonlymode && curbuf->b_nwindows == 1)
+ {
+ // When editing an already visited buffer, 'readonly' won't be set
+ // but the previous value is kept. With ":view" and ":sview" we
+ // want the file to be readonly, except when another window is
+ // editing the same buffer.
+ curbuf->b_p_ro = TRUE;
+ }
+ readonlymode = n;
+ }
+ else
+ {
+ if (eap->do_ecmd_cmd != NULL)
+ do_cmd_argument(eap->do_ecmd_cmd);
+ n = curwin->w_arg_idx_invalid;
+ check_arg_idx(curwin);
+ if (n != curwin->w_arg_idx_invalid)
+ maketitle();
+ }
+
+ /*
+ * if ":split file" worked, set alternate file name in old window to new
+ * file
+ */
+ if (old_curwin != NULL
+ && *eap->arg != NUL
+ && curwin != old_curwin
+ && win_valid(old_curwin)
+ && old_curwin->w_buffer != curbuf
+ && (cmdmod.cmod_flags & CMOD_KEEPALT) == 0)
+ old_curwin->w_alt_fnum = curbuf->b_fnum;
+
+ ex_no_reprint = TRUE;
+}
+
+#ifndef FEAT_GUI
+/*
+ * ":gui" and ":gvim" when there is no GUI.
+ */
+ static void
+ex_nogui(exarg_T *eap)
+{
+ eap->errmsg = _(e_gui_cannot_be_used_not_enabled_at_compile_time);
+}
+#endif
+
+#if defined(FEAT_GUI_MSWIN) && defined(FEAT_MENU) && defined(FEAT_TEAROFF)
+ static void
+ex_tearoff(exarg_T *eap)
+{
+ gui_make_tearoff(eap->arg);
+}
+#endif
+
+#if (defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK) \
+ || defined(FEAT_TERM_POPUP_MENU)) && defined(FEAT_MENU)
+ static void
+ex_popup(exarg_T *eap)
+{
+# if defined(FEAT_GUI_MSWIN) || defined(FEAT_GUI_GTK)
+ if (gui.in_use)
+ gui_make_popup(eap->arg, eap->forceit);
+# ifdef FEAT_TERM_POPUP_MENU
+ else
+# endif
+# endif
+# ifdef FEAT_TERM_POPUP_MENU
+ pum_make_popup(eap->arg, eap->forceit);
+# endif
+}
+#endif
+
+ static void
+ex_swapname(exarg_T *eap UNUSED)
+{
+ if (curbuf->b_ml.ml_mfp == NULL || curbuf->b_ml.ml_mfp->mf_fname == NULL)
+ msg(_("No swap file"));
+ else
+ msg((char *)curbuf->b_ml.ml_mfp->mf_fname);
+}
+
+/*
+ * ":syncbind" forces all 'scrollbind' windows to have the same relative
+ * offset.
+ * (1998-11-02 16:21:01 R. Edward Ralston <eralston@computer.org>)
+ */
+ static void
+ex_syncbind(exarg_T *eap UNUSED)
+{
+ win_T *wp;
+ win_T *save_curwin = curwin;
+ buf_T *save_curbuf = curbuf;
+ long topline;
+ long y;
+ linenr_T old_linenr = curwin->w_cursor.lnum;
+
+ setpcmark();
+
+ /*
+ * determine max topline
+ */
+ if (curwin->w_p_scb)
+ {
+ topline = curwin->w_topline;
+ FOR_ALL_WINDOWS(wp)
+ {
+ if (wp->w_p_scb && wp->w_buffer)
+ {
+ y = wp->w_buffer->b_ml.ml_line_count - get_scrolloff_value();
+ if (topline > y)
+ topline = y;
+ }
+ }
+ if (topline < 1)
+ topline = 1;
+ }
+ else
+ {
+ topline = 1;
+ }
+
+
+ /*
+ * Set all scrollbind windows to the same topline.
+ */
+ FOR_ALL_WINDOWS(curwin)
+ {
+ if (curwin->w_p_scb)
+ {
+ curbuf = curwin->w_buffer;
+ y = topline - curwin->w_topline;
+ if (y > 0)
+ scrollup(y, TRUE);
+ else
+ scrolldown(-y, TRUE);
+ curwin->w_scbind_pos = topline;
+ redraw_later(UPD_VALID);
+ cursor_correct();
+ curwin->w_redr_status = TRUE;
+ }
+ }
+ curwin = save_curwin;
+ curbuf = save_curbuf;
+ if (curwin->w_p_scb)
+ {
+ did_syncbind = TRUE;
+ checkpcmark();
+ if (old_linenr != curwin->w_cursor.lnum)
+ {
+ char_u ctrl_o[2];
+
+ ctrl_o[0] = Ctrl_O;
+ ctrl_o[1] = 0;
+ ins_typebuf(ctrl_o, REMAP_NONE, 0, TRUE, FALSE);
+ }
+ }
+}
+
+
+ static void
+ex_read(exarg_T *eap)
+{
+ int i;
+ int empty = (curbuf->b_ml.ml_flags & ML_EMPTY);
+ linenr_T lnum;
+
+ if (eap->usefilter) // :r!cmd
+ {
+ do_bang(1, eap, FALSE, FALSE, TRUE);
+ return;
+ }
+
+ if (u_save(eap->line2, (linenr_T)(eap->line2 + 1)) == FAIL)
+ return;
+
+#ifdef FEAT_BROWSE
+ if (cmdmod.cmod_flags & CMOD_BROWSE)
+ {
+ char_u *browseFile;
+
+ browseFile = do_browse(0, (char_u *)_("Append File"), eap->arg,
+ NULL, NULL, NULL, curbuf);
+ if (browseFile != NULL)
+ {
+ i = readfile(browseFile, NULL,
+ eap->line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, 0);
+ vim_free(browseFile);
+ }
+ else
+ i = OK;
+ }
+ else
+#endif
+ if (*eap->arg == NUL)
+ {
+ if (check_fname() == FAIL) // check for no file name
+ return;
+ i = readfile(curbuf->b_ffname, curbuf->b_fname,
+ eap->line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, 0);
+ }
+ else
+ {
+ if (vim_strchr(p_cpo, CPO_ALTREAD) != NULL)
+ (void)setaltfname(eap->arg, eap->arg, (linenr_T)1);
+ i = readfile(eap->arg, NULL,
+ eap->line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, 0);
+
+ }
+ if (i != OK)
+ {
+#if defined(FEAT_EVAL)
+ if (!aborting())
+#endif
+ semsg(_(e_cant_open_file_str), eap->arg);
+ }
+ else
+ {
+ if (empty && exmode_active)
+ {
+ // Delete the empty line that remains. Historically ex does
+ // this but vi doesn't.
+ if (eap->line2 == 0)
+ lnum = curbuf->b_ml.ml_line_count;
+ else
+ lnum = 1;
+ if (*ml_get(lnum) == NUL && u_savedel(lnum, 1L) == OK)
+ {
+ ml_delete(lnum);
+ if (curwin->w_cursor.lnum > 1
+ && curwin->w_cursor.lnum >= lnum)
+ --curwin->w_cursor.lnum;
+ deleted_lines_mark(lnum, 1L);
+ }
+ }
+ redraw_curbuf_later(UPD_VALID);
+ }
+}
+
+static char_u *prev_dir = NULL;
+
+#if defined(EXITFREE) || defined(PROTO)
+ void
+free_cd_dir(void)
+{
+ VIM_CLEAR(prev_dir);
+ VIM_CLEAR(globaldir);
+}
+#endif
+
+/*
+ * Get the previous directory for the given chdir scope.
+ */
+ static char_u *
+get_prevdir(cdscope_T scope)
+{
+ if (scope == CDSCOPE_WINDOW)
+ return curwin->w_prevdir;
+ else if (scope == CDSCOPE_TABPAGE)
+ return curtab->tp_prevdir;
+ return prev_dir;
+}
+
+/*
+ * Deal with the side effects of changing the current directory.
+ * When 'scope' is CDSCOPE_TABPAGE then this was after an ":tcd" command.
+ * When 'scope' is CDSCOPE_WINDOW then this was after an ":lcd" command.
+ */
+ void
+post_chdir(cdscope_T scope)
+{
+ if (scope != CDSCOPE_WINDOW)
+ // Clear tab local directory for both :cd and :tcd
+ VIM_CLEAR(curtab->tp_localdir);
+ VIM_CLEAR(curwin->w_localdir);
+ if (scope != CDSCOPE_GLOBAL)
+ {
+ char_u *pdir = get_prevdir(scope);
+
+ // If still in the global directory, need to remember current
+ // directory as the global directory.
+ if (globaldir == NULL && pdir != NULL)
+ globaldir = vim_strsave(pdir);
+
+ // Remember this local directory for the window.
+ if (mch_dirname(NameBuff, MAXPATHL) == OK)
+ {
+ if (scope == CDSCOPE_TABPAGE)
+ curtab->tp_localdir = vim_strsave(NameBuff);
+ else
+ curwin->w_localdir = vim_strsave(NameBuff);
+ }
+ }
+ else
+ {
+ // We are now in the global directory, no need to remember its name.
+ VIM_CLEAR(globaldir);
+ }
+
+ last_chdir_reason = NULL;
+ shorten_fnames(TRUE);
+}
+
+/*
+ * Trigger DirChangedPre for "acmd_fname" with directory "new_dir".
+ */
+ void
+trigger_DirChangedPre(char_u *acmd_fname, char_u *new_dir)
+{
+#ifdef FEAT_EVAL
+ dict_T *v_event;
+ save_v_event_T save_v_event;
+
+ v_event = get_v_event(&save_v_event);
+ (void)dict_add_string(v_event, "directory", new_dir);
+ dict_set_items_ro(v_event);
+#endif
+ apply_autocmds(EVENT_DIRCHANGEDPRE, acmd_fname, new_dir, FALSE, curbuf);
+#ifdef FEAT_EVAL
+ restore_v_event(v_event, &save_v_event);
+#endif
+}
+
+/*
+ * Change directory function used by :cd/:tcd/:lcd Ex commands and the
+ * chdir() function.
+ * scope == CDSCOPE_WINDOW: changes the window-local directory
+ * scope == CDSCOPE_TABPAGE: changes the tab-local directory
+ * Otherwise: changes the global directory
+ * Returns TRUE if the directory is successfully changed.
+ */
+ int
+changedir_func(
+ char_u *new_dir,
+ int forceit,
+ cdscope_T scope)
+{
+ char_u *pdir = NULL;
+ int dir_differs;
+ char_u *acmd_fname = NULL;
+ char_u **pp;
+ char_u *tofree;
+
+ if (new_dir == NULL || allbuf_locked())
+ return FALSE;
+
+ if (vim_strchr(p_cpo, CPO_CHDIR) != NULL && curbufIsChanged() && !forceit)
+ {
+ emsg(_(e_cannot_change_directory_buffer_is_modified_add_bang_to_override));
+ return FALSE;
+ }
+
+ // ":cd -": Change to previous directory
+ if (STRCMP(new_dir, "-") == 0)
+ {
+ pdir = get_prevdir(scope);
+ if (pdir == NULL)
+ {
+ emsg(_(e_no_previous_directory));
+ return FALSE;
+ }
+ new_dir = pdir;
+ }
+
+ // Save current directory for next ":cd -"
+ if (mch_dirname(NameBuff, MAXPATHL) == OK)
+ pdir = vim_strsave(NameBuff);
+ else
+ pdir = NULL;
+
+ // For UNIX ":cd" means: go to home directory.
+ // On other systems too if 'cdhome' is set.
+#if defined(UNIX) || defined(VMS)
+ if (*new_dir == NUL)
+#else
+ if (*new_dir == NUL && p_cdh)
+#endif
+ {
+ // use NameBuff for home directory name
+# ifdef VMS
+ char_u *p;
+
+ p = mch_getenv((char_u *)"SYS$LOGIN");
+ if (p == NULL || *p == NUL) // empty is the same as not set
+ NameBuff[0] = NUL;
+ else
+ vim_strncpy(NameBuff, p, MAXPATHL - 1);
+# else
+ expand_env((char_u *)"$HOME", NameBuff, MAXPATHL);
+# endif
+ new_dir = NameBuff;
+ }
+ dir_differs = pdir == NULL
+ || pathcmp((char *)pdir, (char *)new_dir, -1) != 0;
+ if (dir_differs)
+ {
+ if (scope == CDSCOPE_WINDOW)
+ acmd_fname = (char_u *)"window";
+ else if (scope == CDSCOPE_TABPAGE)
+ acmd_fname = (char_u *)"tabpage";
+ else
+ acmd_fname = (char_u *)"global";
+ trigger_DirChangedPre(acmd_fname, new_dir);
+
+ if (vim_chdir(new_dir))
+ {
+ emsg(_(e_command_failed));
+ vim_free(pdir);
+ return FALSE;
+ }
+ }
+
+ if (scope == CDSCOPE_WINDOW)
+ pp = &curwin->w_prevdir;
+ else if (scope == CDSCOPE_TABPAGE)
+ pp = &curtab->tp_prevdir;
+ else
+ pp = &prev_dir;
+ tofree = *pp; // new_dir may use this
+ *pp = pdir;
+
+ post_chdir(scope);
+
+ if (dir_differs)
+ apply_autocmds(EVENT_DIRCHANGED, acmd_fname, new_dir, FALSE, curbuf);
+ vim_free(tofree);
+ return TRUE;
+}
+
+/*
+ * ":cd", ":tcd", ":lcd", ":chdir" ":tchdir" and ":lchdir".
+ */
+ void
+ex_cd(exarg_T *eap)
+{
+ char_u *new_dir;
+
+ new_dir = eap->arg;
+#if !defined(UNIX) && !defined(VMS)
+ // for non-UNIX ":cd" means: print current directory unless 'cdhome' is set
+ if (*new_dir == NUL && !p_cdh)
+ {
+ ex_pwd(NULL);
+ return;
+ }
+#endif
+
+ cdscope_T scope = CDSCOPE_GLOBAL;
+
+ if (eap->cmdidx == CMD_lcd || eap->cmdidx == CMD_lchdir)
+ scope = CDSCOPE_WINDOW;
+ else if (eap->cmdidx == CMD_tcd || eap->cmdidx == CMD_tchdir)
+ scope = CDSCOPE_TABPAGE;
+
+ if (changedir_func(new_dir, eap->forceit, scope))
+ {
+ // Echo the new current directory if the command was typed.
+ if (KeyTyped || p_verbose >= 5)
+ ex_pwd(eap);
+ }
+}
+
+/*
+ * ":pwd".
+ */
+ static void
+ex_pwd(exarg_T *eap UNUSED)
+{
+ if (mch_dirname(NameBuff, MAXPATHL) == OK)
+ {
+#ifdef BACKSLASH_IN_FILENAME
+ slash_adjust(NameBuff);
+#endif
+ if (p_verbose > 0)
+ {
+ char *context = "global";
+
+ if (last_chdir_reason != NULL)
+ context = last_chdir_reason;
+ else if (curwin->w_localdir != NULL)
+ context = "window";
+ else if (curtab->tp_localdir != NULL)
+ context = "tabpage";
+ smsg("[%s] %s", context, (char *)NameBuff);
+ }
+ else
+ msg((char *)NameBuff);
+ }
+ else
+ emsg(_(e_directory_unknown));
+}
+
+/*
+ * ":=".
+ */
+ static void
+ex_equal(exarg_T *eap)
+{
+ smsg("%ld", (long)eap->line2);
+ ex_may_print(eap);
+}
+
+ static void
+ex_sleep(exarg_T *eap)
+{
+ int n;
+ long len;
+
+ if (cursor_valid())
+ {
+ n = W_WINROW(curwin) + curwin->w_wrow - msg_scrolled;
+ if (n >= 0)
+ windgoto(n, curwin->w_wincol + curwin->w_wcol);
+ }
+
+ len = eap->line2;
+ switch (*eap->arg)
+ {
+ case 'm': break;
+ case NUL: len *= 1000L; break;
+ default: semsg(_(e_invalid_argument_str), eap->arg); return;
+ }
+
+ // Hide the cursor if invoked with !
+ do_sleep(len, eap->forceit);
+}
+
+/*
+ * Sleep for "msec" milliseconds, but keep checking for a CTRL-C every second.
+ * Hide the cursor if "hide_cursor" is TRUE.
+ */
+ void
+do_sleep(long msec, int hide_cursor)
+{
+ long done = 0;
+ long wait_now;
+# ifdef ELAPSED_FUNC
+ elapsed_T start_tv;
+
+ // Remember at what time we started, so that we know how much longer we
+ // should wait after waiting for a bit.
+ ELAPSED_INIT(start_tv);
+# endif
+
+ if (hide_cursor)
+ cursor_sleep();
+ else
+ cursor_on();
+
+ out_flush_cursor(FALSE, FALSE);
+ while (!got_int && done < msec)
+ {
+ wait_now = msec - done > 1000L ? 1000L : msec - done;
+#ifdef FEAT_TIMERS
+ {
+ long due_time = check_due_timer();
+
+ if (due_time > 0 && due_time < wait_now)
+ wait_now = due_time;
+ }
+#endif
+#ifdef FEAT_JOB_CHANNEL
+ if (has_any_channel() && wait_now > 20L)
+ wait_now = 20L;
+#endif
+#ifdef FEAT_SOUND
+ if (has_any_sound_callback() && wait_now > 20L)
+ wait_now = 20L;
+#endif
+ ui_delay(wait_now, TRUE);
+
+#ifdef FEAT_JOB_CHANNEL
+ if (has_any_channel())
+ ui_breakcheck_force(TRUE);
+ else
+#endif
+ ui_breakcheck();
+#ifdef MESSAGE_QUEUE
+ // Process the netbeans and clientserver messages that may have been
+ // received in the call to ui_breakcheck() when the GUI is in use. This
+ // may occur when running a test case.
+ parse_queued_messages();
+#endif
+
+# ifdef ELAPSED_FUNC
+ // actual time passed
+ done = ELAPSED_FUNC(start_tv);
+# else
+ // guestimate time passed (will actually be more)
+ done += wait_now;
+# endif
+ }
+
+ // If CTRL-C was typed to interrupt the sleep, drop the CTRL-C from the
+ // input buffer, otherwise a following call to input() fails.
+ if (got_int)
+ (void)vpeekc();
+
+ if (hide_cursor)
+ cursor_unsleep();
+}
+
+/*
+ * ":winsize" command (obsolete).
+ */
+ static void
+ex_winsize(exarg_T *eap)
+{
+ int w, h;
+ char_u *arg = eap->arg;
+ char_u *p;
+
+ if (!SAFE_isdigit(*arg))
+ {
+ semsg(_(e_invalid_argument_str), arg);
+ return;
+ }
+ w = getdigits(&arg);
+ arg = skipwhite(arg);
+ p = arg;
+ h = getdigits(&arg);
+ if (*p != NUL && *arg == NUL)
+ set_shellsize(w, h, TRUE);
+ else
+ emsg(_(e_winsize_requires_two_number_arguments));
+}
+
+ static void
+ex_wincmd(exarg_T *eap)
+{
+ int xchar = NUL;
+ char_u *p;
+
+ if (*eap->arg == 'g' || *eap->arg == Ctrl_G)
+ {
+ // CTRL-W g and CTRL-W CTRL-G have an extra command character
+ if (eap->arg[1] == NUL)
+ {
+ emsg(_(e_invalid_argument));
+ return;
+ }
+ xchar = eap->arg[1];
+ p = eap->arg + 2;
+ }
+ else
+ p = eap->arg + 1;
+
+ set_nextcmd(eap, p);
+ p = skipwhite(p);
+ if (*p != NUL && *p != (
+#ifdef FEAT_EVAL
+ in_vim9script() ? '#' :
+#endif
+ '"')
+ && eap->nextcmd == NULL)
+ emsg(_(e_invalid_argument));
+ else if (!eap->skip)
+ {
+ // Pass flags on for ":vertical wincmd ]".
+ postponed_split_flags = cmdmod.cmod_split;
+ postponed_split_tab = cmdmod.cmod_tab;
+ do_window(*eap->arg, eap->addr_count > 0 ? eap->line2 : 0L, xchar);
+ postponed_split_flags = 0;
+ postponed_split_tab = 0;
+ }
+}
+
+#if defined(FEAT_GUI) || defined(UNIX) || defined(VMS) || defined(MSWIN)
+/*
+ * ":winpos".
+ */
+ static void
+ex_winpos(exarg_T *eap)
+{
+ int x, y;
+ char_u *arg = eap->arg;
+ char_u *p;
+
+ if (*arg == NUL)
+ {
+# if defined(FEAT_GUI) || defined(MSWIN)
+# ifdef VIMDLL
+ if (gui.in_use ? gui_mch_get_winpos(&x, &y) != FAIL :
+ mch_get_winpos(&x, &y) != FAIL)
+# elif defined(FEAT_GUI)
+ if (gui.in_use && gui_mch_get_winpos(&x, &y) != FAIL)
+# else
+ if (mch_get_winpos(&x, &y) != FAIL)
+# endif
+ {
+ sprintf((char *)IObuff, _("Window position: X %d, Y %d"), x, y);
+ msg((char *)IObuff);
+ }
+ else
+# endif
+ emsg(_(e_obtaining_window_position_not_implemented_for_this_platform));
+ }
+ else
+ {
+ x = getdigits(&arg);
+ arg = skipwhite(arg);
+ p = arg;
+ y = getdigits(&arg);
+ if (*p == NUL || *arg != NUL)
+ {
+ emsg(_(e_winpos_requires_two_number_arguments));
+ return;
+ }
+# ifdef FEAT_GUI
+ if (gui.in_use)
+ gui_mch_set_winpos(x, y);
+ else if (gui.starting)
+ {
+ // Remember the coordinates for when the window is opened.
+ gui_win_x = x;
+ gui_win_y = y;
+ }
+# if defined(HAVE_TGETENT) || defined(VIMDLL)
+ else
+# endif
+# endif
+# if defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL))
+ mch_set_winpos(x, y);
+# endif
+# ifdef HAVE_TGETENT
+ if (*T_CWP)
+ term_set_winpos(x, y);
+# endif
+ }
+}
+#endif
+
+/*
+ * Handle command that work like operators: ":delete", ":yank", ":>" and ":<".
+ */
+ static void
+ex_operators(exarg_T *eap)
+{
+ oparg_T oa;
+
+ clear_oparg(&oa);
+ oa.regname = eap->regname;
+ oa.start.lnum = eap->line1;
+ oa.end.lnum = eap->line2;
+ oa.line_count = eap->line2 - eap->line1 + 1;
+ oa.motion_type = MLINE;
+ virtual_op = FALSE;
+ if (eap->cmdidx != CMD_yank) // position cursor for undo
+ {
+ setpcmark();
+ curwin->w_cursor.lnum = eap->line1;
+ beginline(BL_SOL | BL_FIX);
+ }
+
+ if (VIsual_active)
+ end_visual_mode();
+
+ switch (eap->cmdidx)
+ {
+ case CMD_delete:
+ oa.op_type = OP_DELETE;
+ op_delete(&oa);
+ break;
+
+ case CMD_yank:
+ oa.op_type = OP_YANK;
+ (void)op_yank(&oa, FALSE, TRUE);
+ break;
+
+ default: // CMD_rshift or CMD_lshift
+ if (
+#ifdef FEAT_RIGHTLEFT
+ (eap->cmdidx == CMD_rshift) ^ curwin->w_p_rl
+#else
+ eap->cmdidx == CMD_rshift
+#endif
+ )
+ oa.op_type = OP_RSHIFT;
+ else
+ oa.op_type = OP_LSHIFT;
+ op_shift(&oa, FALSE, eap->amount);
+ break;
+ }
+ virtual_op = MAYBE;
+ ex_may_print(eap);
+}
+
+/*
+ * ":put".
+ */
+ static void
+ex_put(exarg_T *eap)
+{
+ // ":0put" works like ":1put!".
+ if (eap->line2 == 0)
+ {
+ eap->line2 = 1;
+ eap->forceit = TRUE;
+ }
+ curwin->w_cursor.lnum = eap->line2;
+ check_cursor_col();
+ do_put(eap->regname, NULL, eap->forceit ? BACKWARD : FORWARD, 1L,
+ PUT_LINE|PUT_CURSLINE);
+}
+
+/*
+ * Handle ":copy" and ":move".
+ */
+ static void
+ex_copymove(exarg_T *eap)
+{
+ long n;
+
+#ifdef FEAT_EVAL
+ if (not_in_vim9(eap) == FAIL)
+ return;
+#endif
+ n = get_address(eap, &eap->arg, eap->addr_type, FALSE, FALSE, FALSE, 1);
+ if (eap->arg == NULL) // error detected
+ {
+ eap->nextcmd = NULL;
+ return;
+ }
+ get_flags(eap);
+
+ /*
+ * move or copy lines from 'eap->line1'-'eap->line2' to below line 'n'
+ */
+ if (n == MAXLNUM || n < 0 || n > curbuf->b_ml.ml_line_count)
+ {
+ emsg(_(e_invalid_range));
+ return;
+ }
+
+ if (eap->cmdidx == CMD_move)
+ {
+ if (do_move(eap->line1, eap->line2, n) == FAIL)
+ return;
+ }
+ else
+ ex_copy(eap->line1, eap->line2, n);
+ u_clearline();
+ beginline(BL_SOL | BL_FIX);
+ ex_may_print(eap);
+}
+
+/*
+ * Print the current line if flags were given to the Ex command.
+ */
+ void
+ex_may_print(exarg_T *eap)
+{
+ if (eap->flags != 0)
+ {
+ print_line(curwin->w_cursor.lnum, (eap->flags & EXFLAG_NR),
+ (eap->flags & EXFLAG_LIST));
+ ex_no_reprint = TRUE;
+ }
+}
+
+/*
+ * ":smagic" and ":snomagic".
+ */
+ static void
+ex_submagic(exarg_T *eap)
+{
+ optmagic_T saved = magic_overruled;
+
+ magic_overruled = eap->cmdidx == CMD_smagic
+ ? OPTION_MAGIC_ON : OPTION_MAGIC_OFF;
+ ex_substitute(eap);
+ magic_overruled = saved;
+}
+
+/*
+ * ":join".
+ */
+ static void
+ex_join(exarg_T *eap)
+{
+ curwin->w_cursor.lnum = eap->line1;
+ if (eap->line1 == eap->line2)
+ {
+ if (eap->addr_count >= 2) // :2,2join does nothing
+ return;
+ if (eap->line2 == curbuf->b_ml.ml_line_count)
+ {
+ beep_flush();
+ return;
+ }
+ ++eap->line2;
+ }
+ (void)do_join(eap->line2 - eap->line1 + 1, !eap->forceit, TRUE, TRUE, TRUE);
+ beginline(BL_WHITE | BL_FIX);
+ ex_may_print(eap);
+}
+
+/*
+ * ":[addr]@r" or ":[addr]*r": execute register
+ */
+ static void
+ex_at(exarg_T *eap)
+{
+ int c;
+ int prev_len = typebuf.tb_len;
+
+ curwin->w_cursor.lnum = eap->line2;
+ check_cursor_col();
+
+#ifdef USE_ON_FLY_SCROLL
+ dont_scroll = TRUE; // disallow scrolling here
+#endif
+
+ // get the register name. No name means to use the previous one
+ c = *eap->arg;
+ if (c == NUL || (c == '*' && *eap->cmd == '*'))
+ c = '@';
+ // Put the register in the typeahead buffer with the "silent" flag.
+ if (do_execreg(c, TRUE, vim_strchr(p_cpo, CPO_EXECBUF) != NULL, TRUE)
+ == FAIL)
+ {
+ beep_flush();
+ return;
+ }
+
+ int save_efr = exec_from_reg;
+
+ exec_from_reg = TRUE;
+
+ /*
+ * Execute from the typeahead buffer.
+ * Continue until the stuff buffer is empty and all added characters
+ * have been consumed.
+ */
+ while (!stuff_empty() || typebuf.tb_len > prev_len)
+ (void)do_cmdline(NULL, getexline, NULL, DOCMD_NOWAIT|DOCMD_VERBOSE);
+
+ exec_from_reg = save_efr;
+}
+
+/*
+ * ":!".
+ */
+ static void
+ex_bang(exarg_T *eap)
+{
+ do_bang(eap->addr_count, eap, eap->forceit, TRUE, TRUE);
+}
+
+/*
+ * ":undo".
+ */
+ static void
+ex_undo(exarg_T *eap)
+{
+ if (eap->addr_count == 1) // :undo 123
+ undo_time(eap->line2, FALSE, FALSE, TRUE);
+ else
+ u_undo(1);
+}
+
+#ifdef FEAT_PERSISTENT_UNDO
+ static void
+ex_wundo(exarg_T *eap)
+{
+ char_u hash[UNDO_HASH_SIZE];
+
+ u_compute_hash(hash);
+ u_write_undo(eap->arg, eap->forceit, curbuf, hash);
+}
+
+ static void
+ex_rundo(exarg_T *eap)
+{
+ char_u hash[UNDO_HASH_SIZE];
+
+ u_compute_hash(hash);
+ u_read_undo(eap->arg, hash, NULL);
+}
+#endif
+
+/*
+ * ":redo".
+ */
+ static void
+ex_redo(exarg_T *eap UNUSED)
+{
+ u_redo(1);
+}
+
+/*
+ * ":earlier" and ":later".
+ */
+ static void
+ex_later(exarg_T *eap)
+{
+ long count = 0;
+ int sec = FALSE;
+ int file = FALSE;
+ char_u *p = eap->arg;
+
+ if (*p == NUL)
+ count = 1;
+ else if (SAFE_isdigit(*p))
+ {
+ count = getdigits(&p);
+ switch (*p)
+ {
+ case 's': ++p; sec = TRUE; break;
+ case 'm': ++p; sec = TRUE; count *= 60; break;
+ case 'h': ++p; sec = TRUE; count *= 60 * 60; break;
+ case 'd': ++p; sec = TRUE; count *= 24 * 60 * 60; break;
+ case 'f': ++p; file = TRUE; break;
+ }
+ }
+
+ if (*p != NUL)
+ semsg(_(e_invalid_argument_str), eap->arg);
+ else
+ undo_time(eap->cmdidx == CMD_earlier ? -count : count,
+ sec, file, FALSE);
+}
+
+/*
+ * ":redir": start/stop redirection.
+ */
+ static void
+ex_redir(exarg_T *eap)
+{
+ char *mode;
+ char_u *fname;
+ char_u *arg = eap->arg;
+
+#ifdef FEAT_EVAL
+ if (redir_execute)
+ {
+ emsg(_(e_cannot_use_redir_inside_execute));
+ return;
+ }
+#endif
+
+ if (STRICMP(eap->arg, "END") == 0)
+ close_redir();
+ else
+ {
+ if (*arg == '>')
+ {
+ ++arg;
+ if (*arg == '>')
+ {
+ ++arg;
+ mode = "a";
+ }
+ else
+ mode = "w";
+ arg = skipwhite(arg);
+
+ close_redir();
+
+ // Expand environment variables and "~/".
+ fname = expand_env_save(arg);
+ if (fname == NULL)
+ return;
+#ifdef FEAT_BROWSE
+ if (cmdmod.cmod_flags & CMOD_BROWSE)
+ {
+ char_u *browseFile;
+
+ browseFile = do_browse(BROWSE_SAVE,
+ (char_u *)_("Save Redirection"),
+ fname, NULL, NULL,
+ (char_u *)_(BROWSE_FILTER_ALL_FILES), curbuf);
+ if (browseFile == NULL)
+ return; // operation cancelled
+ vim_free(fname);
+ fname = browseFile;
+ eap->forceit = TRUE; // since dialog already asked
+ }
+#endif
+
+ redir_fd = open_exfile(fname, eap->forceit, mode);
+ vim_free(fname);
+ }
+#ifdef FEAT_EVAL
+ else if (*arg == '@')
+ {
+ // redirect to a register a-z (resp. A-Z for appending)
+ close_redir();
+ ++arg;
+ if (ASCII_ISALPHA(*arg)
+# ifdef FEAT_CLIPBOARD
+ || *arg == '*'
+ || *arg == '+'
+# endif
+ || *arg == '"')
+ {
+ redir_reg = *arg++;
+ if (*arg == '>' && arg[1] == '>') // append
+ arg += 2;
+ else
+ {
+ // Can use both "@a" and "@a>".
+ if (*arg == '>')
+ arg++;
+ // Make register empty when not using @A-@Z and the
+ // command is valid.
+ if (*arg == NUL && !SAFE_isupper(redir_reg))
+ write_reg_contents(redir_reg, (char_u *)"", -1, FALSE);
+ }
+ }
+ if (*arg != NUL)
+ {
+ redir_reg = 0;
+ semsg(_(e_invalid_argument_str), eap->arg);
+ }
+ }
+ else if (*arg == '=' && arg[1] == '>')
+ {
+ int append;
+
+ // redirect to a variable
+ close_redir();
+ arg += 2;
+
+ if (*arg == '>')
+ {
+ ++arg;
+ append = TRUE;
+ }
+ else
+ append = FALSE;
+
+ if (var_redir_start(skipwhite(arg), append) == OK)
+ redir_vname = 1;
+ }
+#endif
+
+ // TODO: redirect to a buffer
+
+ else
+ semsg(_(e_invalid_argument_str), eap->arg);
+ }
+
+ // Make sure redirection is not off. Can happen for cmdline completion
+ // that indirectly invokes a command to catch its output.
+ if (redir_fd != NULL
+#ifdef FEAT_EVAL
+ || redir_reg || redir_vname
+#endif
+ )
+ redir_off = FALSE;
+}
+
+/*
+ * ":redraw": force redraw, with clear for ":redraw!".
+ */
+ void
+ex_redraw(exarg_T *eap)
+{
+ redraw_cmd(eap->forceit);
+}
+
+/*
+ * ":redraw": force redraw, with clear if "clear" is TRUE.
+ */
+ void
+redraw_cmd(int clear)
+{
+ int save_RedrawingDisabled = RedrawingDisabled;
+ RedrawingDisabled = 0;
+
+ int save_p_lz = p_lz;
+ p_lz = FALSE;
+
+ validate_cursor();
+ update_topline();
+ update_screen(clear ? UPD_CLEAR : VIsual_active ? UPD_INVERTED : 0);
+ if (need_maketitle)
+ maketitle();
+#if defined(MSWIN) && (!defined(FEAT_GUI_MSWIN) || defined(VIMDLL))
+# ifdef VIMDLL
+ if (!gui.in_use)
+# endif
+ resize_console_buf();
+#endif
+ RedrawingDisabled = save_RedrawingDisabled;
+ p_lz = save_p_lz;
+
+ // After drawing the statusline screen_attr may still be set.
+ screen_stop_highlight();
+
+ // Reset msg_didout, so that a message that's there is overwritten.
+ msg_didout = FALSE;
+ msg_col = 0;
+
+ // No need to wait after an intentional redraw.
+ need_wait_return = FALSE;
+
+ // When invoked from a callback or autocmd the command line may be active.
+ if (State & MODE_CMDLINE)
+ redrawcmdline();
+
+ out_flush();
+}
+
+/*
+ * ":redrawstatus": force redraw of status line(s)
+ */
+ static void
+ex_redrawstatus(exarg_T *eap UNUSED)
+{
+ if (eap->forceit)
+ status_redraw_all();
+ else
+ status_redraw_curbuf();
+ if (msg_scrolled && (State & MODE_CMDLINE))
+ return; // redraw later
+
+ int save_RedrawingDisabled = RedrawingDisabled;
+ RedrawingDisabled = 0;
+
+ int save_p_lz = p_lz;
+ p_lz = FALSE;
+
+ if (State & MODE_CMDLINE)
+ redraw_statuslines();
+ else
+ update_screen(VIsual_active ? UPD_INVERTED : 0);
+ RedrawingDisabled = save_RedrawingDisabled;
+ p_lz = save_p_lz;
+ out_flush();
+}
+
+/*
+ * ":redrawtabline": force redraw of the tabline
+ */
+ static void
+ex_redrawtabline(exarg_T *eap UNUSED)
+{
+ int save_RedrawingDisabled = RedrawingDisabled;
+ RedrawingDisabled = 0;
+
+ int save_p_lz = p_lz;
+ p_lz = FALSE;
+
+ draw_tabline();
+
+ RedrawingDisabled = save_RedrawingDisabled;
+ p_lz = save_p_lz;
+ out_flush();
+}
+
+ static void
+close_redir(void)
+{
+ if (redir_fd != NULL)
+ {
+ fclose(redir_fd);
+ redir_fd = NULL;
+ }
+#ifdef FEAT_EVAL
+ redir_reg = 0;
+ if (redir_vname)
+ {
+ var_redir_stop();
+ redir_vname = 0;
+ }
+#endif
+}
+
+#if (defined(FEAT_SESSION) || defined(FEAT_EVAL)) || defined(PROTO)
+ int
+vim_mkdir_emsg(char_u *name, int prot UNUSED)
+{
+ if (vim_mkdir(name, prot) != 0)
+ {
+ semsg(_(e_cannot_create_directory_str), name);
+ return FAIL;
+ }
+ return OK;
+}
+#endif
+
+/*
+ * Open a file for writing for an Ex command, with some checks.
+ * Return file descriptor, or NULL on failure.
+ */
+ FILE *
+open_exfile(
+ char_u *fname,
+ int forceit,
+ char *mode) // "w" for create new file or "a" for append
+{
+ FILE *fd;
+
+#ifdef UNIX
+ // with Unix it is possible to open a directory
+ if (mch_isdir(fname))
+ {
+ semsg(_(e_str_is_directory), fname);
+ return NULL;
+ }
+#endif
+ if (!forceit && *mode != 'a' && vim_fexists(fname))
+ {
+ semsg(_(e_str_exists_add_bang_to_override), fname);
+ return NULL;
+ }
+
+ if ((fd = mch_fopen((char *)fname, mode)) == NULL)
+ semsg(_(e_cannot_open_str_for_writing_2), fname);
+
+ return fd;
+}
+
+/*
+ * ":mark" and ":k".
+ */
+ static void
+ex_mark(exarg_T *eap)
+{
+ pos_T pos;
+
+#ifdef FEAT_EVAL
+ if (not_in_vim9(eap) == FAIL)
+ return;
+#endif
+ if (*eap->arg == NUL) // No argument?
+ {
+ emsg(_(e_argument_required));
+ return;
+ }
+
+ if (eap->arg[1] != NUL) // more than one character?
+ {
+ semsg(_(e_trailing_characters_str), eap->arg);
+ return;
+ }
+
+ pos = curwin->w_cursor; // save curwin->w_cursor
+ curwin->w_cursor.lnum = eap->line2;
+ beginline(BL_WHITE | BL_FIX);
+ if (setmark(*eap->arg) == FAIL) // set mark
+ emsg(_(e_argument_must_be_letter_or_forward_backward_quote));
+ curwin->w_cursor = pos; // restore curwin->w_cursor
+}
+
+/*
+ * Update w_topline, w_leftcol and the cursor position.
+ */
+ void
+update_topline_cursor(void)
+{
+ check_cursor(); // put cursor on valid line
+ update_topline();
+ if (!curwin->w_p_wrap)
+ validate_cursor();
+ update_curswant();
+}
+
+/*
+ * Save the current State and go to Normal mode.
+ * Return TRUE if the typeahead could be saved.
+ */
+ int
+save_current_state(save_state_T *sst)
+{
+ sst->save_msg_scroll = msg_scroll;
+ sst->save_restart_edit = restart_edit;
+ sst->save_msg_didout = msg_didout;
+ sst->save_State = State;
+ sst->save_insertmode = p_im;
+ sst->save_finish_op = finish_op;
+ sst->save_opcount = opcount;
+ sst->save_reg_executing = reg_executing;
+ sst->save_pending_end_reg_executing = pending_end_reg_executing;
+
+ msg_scroll = FALSE; // no msg scrolling in Normal mode
+ restart_edit = 0; // don't go to Insert mode
+ p_im = FALSE; // don't use 'insertmode'
+
+ sst->save_script_version = current_sctx.sc_version;
+ current_sctx.sc_version = 1; // not in Vim9 script
+
+ /*
+ * Save the current typeahead. This is required to allow using ":normal"
+ * from an event handler and makes sure we don't hang when the argument
+ * ends with half a command.
+ */
+ save_typeahead(&sst->tabuf);
+ return sst->tabuf.typebuf_valid;
+}
+
+ void
+restore_current_state(save_state_T *sst)
+{
+ // Restore the previous typeahead.
+ restore_typeahead(&sst->tabuf, FALSE);
+
+ msg_scroll = sst->save_msg_scroll;
+ restart_edit = sst->save_restart_edit;
+ p_im = sst->save_insertmode;
+ finish_op = sst->save_finish_op;
+ opcount = sst->save_opcount;
+ reg_executing = sst->save_reg_executing;
+ pending_end_reg_executing = sst->save_pending_end_reg_executing;
+ msg_didout |= sst->save_msg_didout; // don't reset msg_didout now
+ current_sctx.sc_version = sst->save_script_version;
+
+ // Restore the state (needed when called from a function executed for
+ // 'indentexpr'). Update the mouse and cursor, they may have changed.
+ State = sst->save_State;
+#ifdef CURSOR_SHAPE
+ ui_cursor_shape(); // may show different cursor shape
+#endif
+}
+
+/*
+ * ":normal[!] {commands}": Execute normal mode commands.
+ */
+ void
+ex_normal(exarg_T *eap)
+{
+ save_state_T save_state;
+ char_u *arg = NULL;
+ int l;
+ char_u *p;
+
+ if (ex_normal_lock > 0)
+ {
+ emsg(_(e_not_allowed_here));
+ return;
+ }
+ if (ex_normal_busy >= p_mmd)
+ {
+ emsg(_(e_recursive_use_of_normal_too_deep));
+ return;
+ }
+
+ /*
+ * vgetc() expects a CSI and K_SPECIAL to have been escaped. Don't do
+ * this for the K_SPECIAL leading byte, otherwise special keys will not
+ * work.
+ */
+ if (has_mbyte)
+ {
+ int len = 0;
+
+ // Count the number of characters to be escaped.
+ for (p = eap->arg; *p != NUL; ++p)
+ {
+#ifdef FEAT_GUI
+ if (*p == CSI) // leadbyte CSI
+ len += 2;
+#endif
+ for (l = (*mb_ptr2len)(p) - 1; l > 0; --l)
+ if (*++p == K_SPECIAL // trailbyte K_SPECIAL or CSI
+#ifdef FEAT_GUI
+ || *p == CSI
+#endif
+ )
+ len += 2;
+ }
+ if (len > 0)
+ {
+ arg = alloc(STRLEN(eap->arg) + len + 1);
+ if (arg != NULL)
+ {
+ len = 0;
+ for (p = eap->arg; *p != NUL; ++p)
+ {
+ arg[len++] = *p;
+#ifdef FEAT_GUI
+ if (*p == CSI)
+ {
+ arg[len++] = KS_EXTRA;
+ arg[len++] = (int)KE_CSI;
+ }
+#endif
+ for (l = (*mb_ptr2len)(p) - 1; l > 0; --l)
+ {
+ arg[len++] = *++p;
+ if (*p == K_SPECIAL)
+ {
+ arg[len++] = KS_SPECIAL;
+ arg[len++] = KE_FILLER;
+ }
+#ifdef FEAT_GUI
+ else if (*p == CSI)
+ {
+ arg[len++] = KS_EXTRA;
+ arg[len++] = (int)KE_CSI;
+ }
+#endif
+ }
+ arg[len] = NUL;
+ }
+ }
+ }
+ }
+
+ ++ex_normal_busy;
+ if (save_current_state(&save_state))
+ {
+ /*
+ * Repeat the :normal command for each line in the range. When no
+ * range given, execute it just once, without positioning the cursor
+ * first.
+ */
+ do
+ {
+ if (eap->addr_count != 0)
+ {
+ curwin->w_cursor.lnum = eap->line1++;
+ curwin->w_cursor.col = 0;
+ check_cursor_moved(curwin);
+ }
+
+ exec_normal_cmd(arg != NULL
+ ? arg
+ : eap->arg, eap->forceit ? REMAP_NONE : REMAP_YES, FALSE);
+ }
+ while (eap->addr_count > 0 && eap->line1 <= eap->line2 && !got_int);
+ }
+
+ // Might not return to the main loop when in an event handler.
+ update_topline_cursor();
+
+ restore_current_state(&save_state);
+ --ex_normal_busy;
+ setmouse();
+#ifdef CURSOR_SHAPE
+ ui_cursor_shape(); // may show different cursor shape
+#endif
+
+ vim_free(arg);
+}
+
+/*
+ * ":startinsert", ":startreplace" and ":startgreplace"
+ */
+ static void
+ex_startinsert(exarg_T *eap)
+{
+ if (eap->forceit)
+ {
+ // cursor line can be zero on startup
+ if (!curwin->w_cursor.lnum)
+ curwin->w_cursor.lnum = 1;
+ set_cursor_for_append_to_line();
+ }
+#ifdef FEAT_TERMINAL
+ // Ignore this when running in an active terminal.
+ if (term_job_running(curbuf->b_term))
+ return;
+#endif
+
+ // Ignore the command when already in Insert mode. Inserting an
+ // expression register that invokes a function can do this.
+ if (State & MODE_INSERT)
+ return;
+
+ if (eap->cmdidx == CMD_startinsert)
+ restart_edit = 'a';
+ else if (eap->cmdidx == CMD_startreplace)
+ restart_edit = 'R';
+ else
+ restart_edit = 'V';
+
+ if (!eap->forceit)
+ {
+ if (eap->cmdidx == CMD_startinsert)
+ restart_edit = 'i';
+ curwin->w_curswant = 0; // avoid MAXCOL
+ }
+
+ if (VIsual_active)
+ showmode();
+}
+
+/*
+ * ":stopinsert"
+ */
+ static void
+ex_stopinsert(exarg_T *eap UNUSED)
+{
+ restart_edit = 0;
+ stop_insert_mode = TRUE;
+ clearmode();
+}
+
+/*
+ * Execute normal mode command "cmd".
+ * "remap" can be REMAP_NONE or REMAP_YES.
+ */
+ void
+exec_normal_cmd(char_u *cmd, int remap, int silent)
+{
+ // Stuff the argument into the typeahead buffer.
+ ins_typebuf(cmd, remap, 0, TRUE, silent);
+ exec_normal(FALSE, FALSE, FALSE);
+}
+
+/*
+ * Execute normal_cmd() until there is no typeahead left.
+ * When "use_vpeekc" is TRUE use vpeekc() to check for available chars.
+ */
+ void
+exec_normal(int was_typed, int use_vpeekc, int may_use_terminal_loop UNUSED)
+{
+ oparg_T oa;
+ int c;
+
+ // When calling vpeekc() from feedkeys() it will return Ctrl_C when there
+ // is nothing to get, so also check for Ctrl_C.
+ clear_oparg(&oa);
+ finish_op = FALSE;
+ while ((!stuff_empty()
+ || ((was_typed || !typebuf_typed()) && typebuf.tb_len > 0)
+ || (use_vpeekc && (c = vpeekc()) != NUL && c != Ctrl_C))
+ && !got_int)
+ {
+ update_topline_cursor();
+#ifdef FEAT_TERMINAL
+ if (may_use_terminal_loop && term_use_loop()
+ && oa.op_type == OP_NOP && oa.regname == NUL
+ && !VIsual_active)
+ {
+ // If terminal_loop() returns OK we got a key that is handled
+ // in Normal model. With FAIL we first need to position the
+ // cursor and the screen needs to be redrawn.
+ if (terminal_loop(TRUE) == OK)
+ normal_cmd(&oa, TRUE);
+ }
+ else
+#endif
+ // execute a Normal mode cmd
+ normal_cmd(&oa, TRUE);
+ }
+}
+
+#ifdef FEAT_FIND_ID
+ static void
+ex_checkpath(exarg_T *eap)
+{
+ find_pattern_in_path(NULL, 0, 0, FALSE, FALSE, CHECK_PATH, 1L,
+ eap->forceit ? ACTION_SHOW_ALL : ACTION_SHOW,
+ (linenr_T)1, (linenr_T)MAXLNUM);
+}
+
+#if defined(FEAT_QUICKFIX)
+/*
+ * ":psearch"
+ */
+ static void
+ex_psearch(exarg_T *eap)
+{
+ g_do_tagpreview = p_pvh;
+ ex_findpat(eap);
+ g_do_tagpreview = 0;
+}
+#endif
+
+ static void
+ex_findpat(exarg_T *eap)
+{
+ int whole = TRUE;
+ long n;
+ char_u *p;
+ int action;
+
+ switch (cmdnames[eap->cmdidx].cmd_name[2])
+ {
+ case 'e': // ":psearch", ":isearch" and ":dsearch"
+ if (cmdnames[eap->cmdidx].cmd_name[0] == 'p')
+ action = ACTION_GOTO;
+ else
+ action = ACTION_SHOW;
+ break;
+ case 'i': // ":ilist" and ":dlist"
+ action = ACTION_SHOW_ALL;
+ break;
+ case 'u': // ":ijump" and ":djump"
+ action = ACTION_GOTO;
+ break;
+ default: // ":isplit" and ":dsplit"
+ action = ACTION_SPLIT;
+ break;
+ }
+
+ n = 1;
+ if (vim_isdigit(*eap->arg)) // get count
+ {
+ n = getdigits(&eap->arg);
+ eap->arg = skipwhite(eap->arg);
+ }
+ if (*eap->arg == '/') // Match regexp, not just whole words
+ {
+ whole = FALSE;
+ ++eap->arg;
+ p = skip_regexp(eap->arg, '/', magic_isset());
+ if (*p)
+ {
+ *p++ = NUL;
+ p = skipwhite(p);
+
+ // Check for trailing illegal characters
+ if (!ends_excmd2(eap->arg, p))
+ eap->errmsg = ex_errmsg(e_trailing_characters_str, p);
+ else
+ set_nextcmd(eap, p);
+ }
+ }
+ if (!eap->skip)
+ find_pattern_in_path(eap->arg, 0, (int)STRLEN(eap->arg),
+ whole, !eap->forceit,
+ *eap->cmd == 'd' ? FIND_DEFINE : FIND_ANY,
+ n, action, eap->line1, eap->line2);
+}
+#endif
+
+
+#ifdef FEAT_QUICKFIX
+/*
+ * ":ptag", ":ptselect", ":ptjump", ":ptnext", etc.
+ */
+ static void
+ex_ptag(exarg_T *eap)
+{
+ g_do_tagpreview = p_pvh; // will be reset to 0 in ex_tag_cmd()
+ ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name + 1);
+}
+
+/*
+ * ":pedit"
+ */
+ static void
+ex_pedit(exarg_T *eap)
+{
+ win_T *curwin_save = curwin;
+
+ if (ERROR_IF_ANY_POPUP_WINDOW)
+ return;
+
+ // Open the preview window or popup and make it the current window.
+ g_do_tagpreview = p_pvh;
+ prepare_tagpreview(TRUE, TRUE, FALSE);
+
+ // Edit the file.
+ do_exedit(eap, NULL);
+
+ if (curwin != curwin_save && win_valid(curwin_save))
+ {
+ // Return cursor to where we were
+ validate_cursor();
+ redraw_later(UPD_VALID);
+ win_enter(curwin_save, TRUE);
+ }
+# ifdef FEAT_PROP_POPUP
+ else if (WIN_IS_POPUP(curwin))
+ {
+ // can't keep focus in popup window
+ win_enter(firstwin, TRUE);
+ }
+# endif
+ g_do_tagpreview = 0;
+}
+#endif
+
+/*
+ * ":stag", ":stselect" and ":stjump".
+ */
+ static void
+ex_stag(exarg_T *eap)
+{
+ postponed_split = -1;
+ postponed_split_flags = cmdmod.cmod_split;
+ postponed_split_tab = cmdmod.cmod_tab;
+ ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name + 1);
+ postponed_split_flags = 0;
+ postponed_split_tab = 0;
+}
+
+/*
+ * ":tag", ":tselect", ":tjump", ":tnext", etc.
+ */
+ static void
+ex_tag(exarg_T *eap)
+{
+ ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name);
+}
+
+ static void
+ex_tag_cmd(exarg_T *eap, char_u *name)
+{
+ int cmd;
+
+ switch (name[1])
+ {
+ case 'j': cmd = DT_JUMP; // ":tjump"
+ break;
+ case 's': cmd = DT_SELECT; // ":tselect"
+ break;
+ case 'p': cmd = DT_PREV; // ":tprevious"
+ break;
+ case 'N': cmd = DT_PREV; // ":tNext"
+ break;
+ case 'n': cmd = DT_NEXT; // ":tnext"
+ break;
+ case 'o': cmd = DT_POP; // ":pop"
+ break;
+ case 'f': // ":tfirst"
+ case 'r': cmd = DT_FIRST; // ":trewind"
+ break;
+ case 'l': cmd = DT_LAST; // ":tlast"
+ break;
+ default: // ":tag"
+#ifdef FEAT_CSCOPE
+ if (p_cst && *eap->arg != NUL)
+ {
+ ex_cstag(eap);
+ return;
+ }
+#endif
+ cmd = DT_TAG;
+ break;
+ }
+
+ if (name[0] == 'l')
+ {
+#ifndef FEAT_QUICKFIX
+ ex_ni(eap);
+ return;
+#else
+ cmd = DT_LTAG;
+#endif
+ }
+
+ do_tag(eap->arg, cmd, eap->addr_count > 0 ? (int)eap->line2 : 1,
+ eap->forceit, TRUE);
+}
+
+/*
+ * Check "str" for starting with a special cmdline variable.
+ * If found return one of the SPEC_ values and set "*usedlen" to the length of
+ * the variable. Otherwise return -1 and "*usedlen" is unchanged.
+ */
+ int
+find_cmdline_var(char_u *src, int *usedlen)
+{
+ int len;
+ int i;
+ static char *(spec_str[]) = {
+ "%",
+#define SPEC_PERC 0
+ "#",
+#define SPEC_HASH (SPEC_PERC + 1)
+ "<cword>", // cursor word
+#define SPEC_CWORD (SPEC_HASH + 1)
+ "<cWORD>", // cursor WORD
+#define SPEC_CCWORD (SPEC_CWORD + 1)
+ "<cexpr>", // expr under cursor
+#define SPEC_CEXPR (SPEC_CCWORD + 1)
+ "<cfile>", // cursor path name
+#define SPEC_CFILE (SPEC_CEXPR + 1)
+ "<sfile>", // ":so" file name
+#define SPEC_SFILE (SPEC_CFILE + 1)
+ "<slnum>", // ":so" file line number
+#define SPEC_SLNUM (SPEC_SFILE + 1)
+ "<stack>", // call stack
+#define SPEC_STACK (SPEC_SLNUM + 1)
+ "<script>", // script file name
+#define SPEC_SCRIPT (SPEC_STACK + 1)
+ "<afile>", // autocommand file name
+#define SPEC_AFILE (SPEC_SCRIPT + 1)
+ "<abuf>", // autocommand buffer number
+#define SPEC_ABUF (SPEC_AFILE + 1)
+ "<amatch>", // autocommand match name
+#define SPEC_AMATCH (SPEC_ABUF + 1)
+ "<sflnum>", // script file line number
+#define SPEC_SFLNUM (SPEC_AMATCH + 1)
+ "<SID>", // script ID: <SNR>123_
+#define SPEC_SID (SPEC_SFLNUM + 1)
+#ifdef FEAT_CLIENTSERVER
+ "<client>"
+# define SPEC_CLIENT (SPEC_SID + 1)
+#endif
+ };
+
+ for (i = 0; i < (int)ARRAY_LENGTH(spec_str); ++i)
+ {
+ len = (int)STRLEN(spec_str[i]);
+ if (STRNCMP(src, spec_str[i], len) == 0)
+ {
+ *usedlen = len;
+ return i;
+ }
+ }
+ return -1;
+}
+
+/*
+ * Evaluate cmdline variables.
+ *
+ * change "%" to curbuf->b_ffname
+ * "#" to curwin->w_alt_fnum
+ * "%%" to curwin->w_alt_fnum in Vim9 script
+ * "<cword>" to word under the cursor
+ * "<cWORD>" to WORD under the cursor
+ * "<cexpr>" to C-expression under the cursor
+ * "<cfile>" to path name under the cursor
+ * "<sfile>" to sourced file name
+ * "<stack>" to call stack
+ * "<script>" to current script name
+ * "<slnum>" to sourced file line number
+ * "<afile>" to file name for autocommand
+ * "<abuf>" to buffer number for autocommand
+ * "<amatch>" to matching name for autocommand
+ *
+ * When an error is detected, "errormsg" is set to a non-NULL pointer (may be
+ * "" for error without a message) and NULL is returned.
+ * Returns an allocated string if a valid match was found.
+ * Returns NULL if no match was found. "usedlen" then still contains the
+ * number of characters to skip.
+ */
+ char_u *
+eval_vars(
+ char_u *src, // pointer into commandline
+ char_u *srcstart, // beginning of valid memory for src
+ int *usedlen, // characters after src that are used
+ linenr_T *lnump, // line number for :e command, or NULL
+ char **errormsg, // pointer to error message
+ int *escaped, // return value has escaped white space (can
+ // be NULL)
+ int empty_is_error) // empty result is considered an error
+{
+ int i;
+ char_u *s;
+ char_u *result;
+ char_u *resultbuf = NULL;
+ int resultlen;
+ buf_T *buf;
+ int valid = VALID_HEAD + VALID_PATH; // assume valid result
+ int spec_idx;
+ int tilde_file = FALSE;
+ int skip_mod = FALSE;
+ char_u strbuf[30];
+
+ *errormsg = NULL;
+ if (escaped != NULL)
+ *escaped = FALSE;
+
+ /*
+ * Check if there is something to do.
+ */
+ spec_idx = find_cmdline_var(src, usedlen);
+ if (spec_idx < 0) // no match
+ {
+ *usedlen = 1;
+ return NULL;
+ }
+
+ /*
+ * Skip when preceded with a backslash "\%" and "\#".
+ * Note: In "\\%" the % is also not recognized!
+ */
+ if (src > srcstart && src[-1] == '\\')
+ {
+ *usedlen = 0;
+ STRMOVE(src - 1, src); // remove backslash
+ return NULL;
+ }
+
+ /*
+ * word or WORD under cursor
+ */
+ if (spec_idx == SPEC_CWORD || spec_idx == SPEC_CCWORD
+ || spec_idx == SPEC_CEXPR)
+ {
+ resultlen = find_ident_under_cursor(&result,
+ spec_idx == SPEC_CWORD ? (FIND_IDENT | FIND_STRING)
+ : spec_idx == SPEC_CEXPR ? (FIND_IDENT | FIND_STRING | FIND_EVAL)
+ : FIND_STRING);
+ if (resultlen == 0)
+ {
+ *errormsg = "";
+ return NULL;
+ }
+ }
+
+ /*
+ * '#': Alternate file name
+ * '%': Current file name
+ * File name under the cursor
+ * File name for autocommand
+ * and following modifiers
+ */
+ else
+ {
+ int off = 0;
+
+ switch (spec_idx)
+ {
+ case SPEC_PERC:
+#ifdef FEAT_EVAL
+ if (!in_vim9script() || src[1] != '%')
+#endif
+ {
+ // '%': current file
+ if (curbuf->b_fname == NULL)
+ {
+ result = (char_u *)"";
+ valid = 0; // Must have ":p:h" to be valid
+ }
+ else
+ {
+ result = curbuf->b_fname;
+ tilde_file = STRCMP(result, "~") == 0;
+ }
+ break;
+ }
+#ifdef FEAT_EVAL
+ // "%%" alternate file
+ off = 1;
+#endif
+ // FALLTHROUGH
+ case SPEC_HASH: // '#' or "#99": alternate file
+ if (off == 0 ? src[1] == '#' : src[2] == '%')
+ {
+ // "##" or "%%%": the argument list
+ result = arg_all();
+ resultbuf = result;
+ *usedlen = off + 2;
+ if (escaped != NULL)
+ *escaped = TRUE;
+ skip_mod = TRUE;
+ break;
+ }
+ s = src + off + 1;
+ if (*s == '<') // "#<99" uses v:oldfiles
+ ++s;
+ i = (int)getdigits(&s);
+ if (s == src + off + 2 && src[off + 1] == '-')
+ // just a minus sign, don't skip over it
+ s--;
+ *usedlen = (int)(s - src); // length of what we expand
+
+ if (src[off + 1] == '<' && i != 0)
+ {
+ if (*usedlen < off + 2)
+ {
+ // Should we give an error message for #<text?
+ *usedlen = off + 1;
+ return NULL;
+ }
+#ifdef FEAT_EVAL
+ result = list_find_str(get_vim_var_list(VV_OLDFILES),
+ (long)i);
+ if (result == NULL)
+ {
+ *errormsg = "";
+ return NULL;
+ }
+#else
+ *errormsg = _(e_hashsmall_is_not_available_without_the_eval_feature);
+ return NULL;
+#endif
+ }
+ else
+ {
+ if (i == 0 && src[off + 1] == '<' && *usedlen > off + 1)
+ *usedlen = off + 1;
+ buf = buflist_findnr(i);
+ if (buf == NULL)
+ {
+ *errormsg = _(e_no_alternate_file_name_to_substitute_for_hash);
+ return NULL;
+ }
+ if (lnump != NULL)
+ *lnump = ECMD_LAST;
+ if (buf->b_fname == NULL)
+ {
+ result = (char_u *)"";
+ valid = 0; // Must have ":p:h" to be valid
+ }
+ else
+ {
+ result = buf->b_fname;
+ tilde_file = STRCMP(result, "~") == 0;
+ }
+ }
+ break;
+
+ case SPEC_CFILE: // file name under cursor
+ result = file_name_at_cursor(FNAME_MESS|FNAME_HYP, 1L, NULL);
+ if (result == NULL)
+ {
+ *errormsg = "";
+ return NULL;
+ }
+ resultbuf = result; // remember allocated string
+ break;
+
+ case SPEC_AFILE: // file name for autocommand
+ result = autocmd_fname;
+ if (result != NULL && !autocmd_fname_full)
+ {
+ // Still need to turn the fname into a full path. It is
+ // postponed to avoid a delay when <afile> is not used.
+ autocmd_fname_full = TRUE;
+ result = FullName_save(autocmd_fname, FALSE);
+ vim_free(autocmd_fname);
+ autocmd_fname = result;
+ }
+ if (result == NULL)
+ {
+ *errormsg = _(e_no_autocommand_file_name_to_substitute_for_afile);
+ return NULL;
+ }
+ result = shorten_fname1(result);
+ break;
+
+ case SPEC_ABUF: // buffer number for autocommand
+ if (autocmd_bufnr <= 0)
+ {
+ *errormsg = _(e_no_autocommand_buffer_number_to_substitute_for_abuf);
+ return NULL;
+ }
+ sprintf((char *)strbuf, "%d", autocmd_bufnr);
+ result = strbuf;
+ break;
+
+ case SPEC_AMATCH: // match name for autocommand
+ result = autocmd_match;
+ if (result == NULL)
+ {
+ *errormsg = _(e_no_autocommand_match_name_to_substitute_for_amatch);
+ return NULL;
+ }
+ break;
+
+ case SPEC_SFILE: // file name for ":so" command
+ result = estack_sfile(ESTACK_SFILE);
+ if (result == NULL)
+ {
+ *errormsg = _(e_no_source_file_name_to_substitute_for_sfile);
+ return NULL;
+ }
+ resultbuf = result; // remember allocated string
+ break;
+ case SPEC_STACK: // call stack
+ result = estack_sfile(ESTACK_STACK);
+ if (result == NULL)
+ {
+ *errormsg = _(e_no_call_stack_to_substitute_for_stack);
+ return NULL;
+ }
+ resultbuf = result; // remember allocated string
+ break;
+ case SPEC_SCRIPT: // script file name
+ result = estack_sfile(ESTACK_SCRIPT);
+ if (result == NULL)
+ {
+ *errormsg = _(e_no_script_file_name_to_substitute_for_script);
+ return NULL;
+ }
+ resultbuf = result; // remember allocated string
+ break;
+
+ case SPEC_SLNUM: // line in file for ":so" command
+ if (SOURCING_NAME == NULL || SOURCING_LNUM == 0)
+ {
+ *errormsg = _(e_no_line_number_to_use_for_slnum);
+ return NULL;
+ }
+ sprintf((char *)strbuf, "%ld", SOURCING_LNUM);
+ result = strbuf;
+ break;
+
+#ifdef FEAT_EVAL
+ case SPEC_SFLNUM: // line in script file
+ if (current_sctx.sc_lnum + SOURCING_LNUM == 0)
+ {
+ *errormsg = _(e_no_line_number_to_use_for_sflnum);
+ return NULL;
+ }
+ sprintf((char *)strbuf, "%ld",
+ (long)(current_sctx.sc_lnum + SOURCING_LNUM));
+ result = strbuf;
+ break;
+
+ case SPEC_SID:
+ if (current_sctx.sc_sid <= 0)
+ {
+ *errormsg = _(e_using_sid_not_in_script_context);
+ return NULL;
+ }
+ sprintf((char *)strbuf, "<SNR>%d_", current_sctx.sc_sid);
+ result = strbuf;
+ break;
+#endif
+
+#ifdef FEAT_CLIENTSERVER
+ case SPEC_CLIENT: // Source of last submitted input
+ sprintf((char *)strbuf, PRINTF_HEX_LONG_U,
+ (long_u)clientWindow);
+ result = strbuf;
+ break;
+#endif
+
+ default:
+ result = (char_u *)""; // avoid gcc warning
+ break;
+ }
+
+ resultlen = (int)STRLEN(result); // length of new string
+ if (src[*usedlen] == '<') // remove the file name extension
+ {
+ ++*usedlen;
+ if ((s = vim_strrchr(result, '.')) != NULL && s >= gettail(result))
+ resultlen = (int)(s - result);
+ }
+ else if (!skip_mod)
+ {
+ valid |= modify_fname(src, tilde_file, usedlen, &result, &resultbuf,
+ &resultlen);
+ if (result == NULL)
+ {
+ *errormsg = "";
+ return NULL;
+ }
+ }
+ }
+
+ if (resultlen == 0 || valid != VALID_HEAD + VALID_PATH)
+ {
+ if (empty_is_error)
+ {
+ if (valid != VALID_HEAD + VALID_PATH)
+ *errormsg = _(e_empty_file_name_for_percent_or_hash_only_works_with_ph);
+ else
+ *errormsg = _(e_evaluates_to_an_empty_string);
+ }
+ result = NULL;
+ }
+ else
+ result = vim_strnsave(result, resultlen);
+ vim_free(resultbuf);
+ return result;
+}
+
+/*
+ * Expand the <sfile> string in "arg".
+ *
+ * Returns an allocated string, or NULL for any error.
+ */
+ char_u *
+expand_sfile(char_u *arg)
+{
+ char *errormsg;
+ int len;
+ char_u *result;
+ char_u *newres;
+ char_u *repl;
+ int srclen;
+ char_u *p;
+
+ result = vim_strsave(arg);
+ if (result == NULL)
+ return NULL;
+
+ for (p = result; *p; )
+ {
+ if (STRNCMP(p, "<sfile>", 7) != 0)
+ ++p;
+ else
+ {
+ // replace "<sfile>" with the sourced file name, and do ":" stuff
+ repl = eval_vars(p, result, &srclen, NULL, &errormsg, NULL, TRUE);
+ if (errormsg != NULL)
+ {
+ if (*errormsg)
+ emsg(errormsg);
+ vim_free(result);
+ return NULL;
+ }
+ if (repl == NULL) // no match (cannot happen)
+ {
+ p += srclen;
+ continue;
+ }
+ len = (int)STRLEN(result) - srclen + (int)STRLEN(repl) + 1;
+ newres = alloc(len);
+ if (newres == NULL)
+ {
+ vim_free(repl);
+ vim_free(result);
+ return NULL;
+ }
+ mch_memmove(newres, result, (size_t)(p - result));
+ STRCPY(newres + (p - result), repl);
+ len = (int)STRLEN(newres);
+ STRCAT(newres, p + srclen);
+ vim_free(repl);
+ vim_free(result);
+ result = newres;
+ p = newres + len; // continue after the match
+ }
+ }
+
+ return result;
+}
+
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) || defined(PROTO)
+/*
+ * Make a dialog message in "buff[DIALOG_MSG_SIZE]".
+ * "format" must contain "%s".
+ */
+ void
+dialog_msg(char_u *buff, char *format, char_u *fname)
+{
+ if (fname == NULL)
+ fname = (char_u *)_("Untitled");
+ vim_snprintf((char *)buff, DIALOG_MSG_SIZE, format, fname);
+}
+#endif
+
+/*
+ * ":behave {mswin,xterm}"
+ */
+ static void
+ex_behave(exarg_T *eap)
+{
+ if (STRCMP(eap->arg, "mswin") == 0)
+ {
+ set_option_value_give_err((char_u *)"selection",
+ 0L, (char_u *)"exclusive", 0);
+ set_option_value_give_err((char_u *)"selectmode",
+ 0L, (char_u *)"mouse,key", 0);
+ set_option_value_give_err((char_u *)"mousemodel",
+ 0L, (char_u *)"popup", 0);
+ set_option_value_give_err((char_u *)"keymodel",
+ 0L, (char_u *)"startsel,stopsel", 0);
+ }
+ else if (STRCMP(eap->arg, "xterm") == 0)
+ {
+ set_option_value_give_err((char_u *)"selection",
+ 0L, (char_u *)"inclusive", 0);
+ set_option_value_give_err((char_u *)"selectmode", 0L, (char_u *)"", 0);
+ set_option_value_give_err((char_u *)"mousemodel",
+ 0L, (char_u *)"extend", 0);
+ set_option_value_give_err((char_u *)"keymodel", 0L, (char_u *)"", 0);
+ }
+ else
+ semsg(_(e_invalid_argument_str), eap->arg);
+}
+
+static int filetype_detect = FALSE;
+static int filetype_plugin = FALSE;
+static int filetype_indent = FALSE;
+
+/*
+ * ":filetype [plugin] [indent] {on,off,detect}"
+ * on: Load the filetype.vim file to install autocommands for file types.
+ * off: Load the ftoff.vim file to remove all autocommands for file types.
+ * plugin on: load filetype.vim and ftplugin.vim
+ * plugin off: load ftplugof.vim
+ * indent on: load filetype.vim and indent.vim
+ * indent off: load indoff.vim
+ */
+ static void
+ex_filetype(exarg_T *eap)
+{
+ char_u *arg = eap->arg;
+ int plugin = FALSE;
+ int indent = FALSE;
+
+ if (*eap->arg == NUL)
+ {
+ // Print current status.
+ smsg("filetype detection:%s plugin:%s indent:%s",
+ filetype_detect ? "ON" : "OFF",
+ filetype_plugin ? (filetype_detect ? "ON" : "(on)") : "OFF",
+ filetype_indent ? (filetype_detect ? "ON" : "(on)") : "OFF");
+ return;
+ }
+
+ // Accept "plugin" and "indent" in any order.
+ for (;;)
+ {
+ if (STRNCMP(arg, "plugin", 6) == 0)
+ {
+ plugin = TRUE;
+ arg = skipwhite(arg + 6);
+ continue;
+ }
+ if (STRNCMP(arg, "indent", 6) == 0)
+ {
+ indent = TRUE;
+ arg = skipwhite(arg + 6);
+ continue;
+ }
+ break;
+ }
+ if (STRCMP(arg, "on") == 0 || STRCMP(arg, "detect") == 0)
+ {
+ if (*arg == 'o' || !filetype_detect)
+ {
+ source_runtime((char_u *)FILETYPE_FILE, DIP_ALL);
+ filetype_detect = TRUE;
+ if (plugin)
+ {
+ source_runtime((char_u *)FTPLUGIN_FILE, DIP_ALL);
+ filetype_plugin = TRUE;
+ }
+ if (indent)
+ {
+ source_runtime((char_u *)INDENT_FILE, DIP_ALL);
+ filetype_indent = TRUE;
+ }
+ }
+ if (*arg == 'd')
+ {
+ (void)do_doautocmd((char_u *)"filetypedetect BufRead", TRUE, NULL);
+ do_modelines(0);
+ }
+ }
+ else if (STRCMP(arg, "off") == 0)
+ {
+ if (plugin || indent)
+ {
+ if (plugin)
+ {
+ source_runtime((char_u *)FTPLUGOF_FILE, DIP_ALL);
+ filetype_plugin = FALSE;
+ }
+ if (indent)
+ {
+ source_runtime((char_u *)INDOFF_FILE, DIP_ALL);
+ filetype_indent = FALSE;
+ }
+ }
+ else
+ {
+ source_runtime((char_u *)FTOFF_FILE, DIP_ALL);
+ filetype_detect = FALSE;
+ }
+ }
+ else
+ semsg(_(e_invalid_argument_str), arg);
+}
+
+/*
+ * ":setfiletype [FALLBACK] {name}"
+ */
+ static void
+ex_setfiletype(exarg_T *eap)
+{
+ if (did_filetype)
+ return;
+
+ char_u *arg = eap->arg;
+ if (STRNCMP(arg, "FALLBACK ", 9) == 0)
+ arg += 9;
+
+ set_option_value_give_err((char_u *)"filetype", 0L, arg, OPT_LOCAL);
+ if (arg != eap->arg)
+ did_filetype = FALSE;
+}
+
+ static void
+ex_digraphs(exarg_T *eap UNUSED)
+{
+#ifdef FEAT_DIGRAPHS
+ if (*eap->arg != NUL)
+ putdigraph(eap->arg);
+ else
+ listdigraphs(eap->forceit);
+#else
+ emsg(_(e_no_digraphs_version));
+#endif
+}
+
+#if defined(FEAT_SEARCH_EXTRA) || defined(PROTO)
+ void
+set_no_hlsearch(int flag)
+{
+ no_hlsearch = flag;
+# ifdef FEAT_EVAL
+ set_vim_var_nr(VV_HLSEARCH, !no_hlsearch && p_hls);
+# endif
+}
+
+/*
+ * ":nohlsearch"
+ */
+ static void
+ex_nohlsearch(exarg_T *eap UNUSED)
+{
+ set_no_hlsearch(TRUE);
+ redraw_all_later(UPD_SOME_VALID);
+}
+#endif
+
+#ifdef FEAT_CRYPT
+/*
+ * ":X": Get crypt key
+ */
+ static void
+ex_X(exarg_T *eap UNUSED)
+{
+ crypt_check_current_method();
+ (void)crypt_get_key(TRUE, TRUE);
+}
+#endif
+
+#ifdef FEAT_FOLDING
+ static void
+ex_fold(exarg_T *eap)
+{
+ if (foldManualAllowed(TRUE))
+ foldCreate(eap->line1, eap->line2);
+}
+
+ static void
+ex_foldopen(exarg_T *eap)
+{
+ opFoldRange(eap->line1, eap->line2, eap->cmdidx == CMD_foldopen,
+ eap->forceit, FALSE);
+}
+
+ static void
+ex_folddo(exarg_T *eap)
+{
+ linenr_T lnum;
+
+# ifdef FEAT_CLIPBOARD
+ start_global_changes();
+# endif
+
+ // First set the marks for all lines closed/open.
+ for (lnum = eap->line1; lnum <= eap->line2; ++lnum)
+ if (hasFolding(lnum, NULL, NULL) == (eap->cmdidx == CMD_folddoclosed))
+ ml_setmarked(lnum);
+
+ // Execute the command on the marked lines.
+ global_exe(eap->arg);
+ ml_clearmarked(); // clear rest of the marks
+# ifdef FEAT_CLIPBOARD
+ end_global_changes();
+# endif
+}
+#endif
+
+#if defined(FEAT_QUICKFIX) || defined(PROTO)
+/*
+ * Returns TRUE if the supplied Ex cmdidx is for a location list command
+ * instead of a quickfix command.
+ */
+ int
+is_loclist_cmd(int cmdidx)
+{
+ if (cmdidx < 0 || cmdidx >= CMD_SIZE)
+ return FALSE;
+ return cmdnames[cmdidx].cmd_name[0] == 'l';
+}
+#endif
+
+ int
+get_pressedreturn(void)
+{
+ return ex_pressedreturn;
+}
+
+ void
+set_pressedreturn(int val)
+{
+ ex_pressedreturn = val;
+}