text: /* vi:set ts=8 sts=4 sw=4:
   *
   * 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.
   */
  
  /*
   * definition of global variables
   */
  
  /*
   * Number of Rows and Columns in the screen.
   * Must be long to be able to use them as options in option.c.
   * Note: Use screen_Rows and screen_Columns to access items in ScreenLines[].
   * They may have different values when the screen wasn't (re)allocated yet
   * after setting Rows or Columns (e.g., when starting up).
   */
  EXTERN long	Rows			/* nr of rows in the screen */
  #ifdef DO_INIT
  # if defined(MSDOS) || defined(WIN3264) || defined(OS2)
  			    = 25L
  # else
  			    = 24L
  # endif
  #endif
  			    ;
  EXTERN long	Columns INIT(= 80);	/* nr of columns in the screen */
  
  /*
   * The characters that are currently on the screen are kept in ScreenLines[].
   * It is a single block of characters, the size of the screen plus one line.
   * The attributes for those characters are kept in ScreenAttrs[].
   *
   * "LineOffset[n]" is the offset from ScreenLines[] for the start of line 'n'.
   * The same value is used for ScreenLinesUC[] and ScreenAttrs[].
   *
   * Note: before the screen is initialized and when out of memory these can be
   * NULL.
   */
  EXTERN schar_T	*ScreenLines INIT(= NULL);
  EXTERN sattr_T	*ScreenAttrs INIT(= NULL);
  EXTERN unsigned	*LineOffset INIT(= NULL);
  EXTERN char_u	*LineWraps INIT(= NULL);	/* line wraps to next line */
  
  #ifdef FEAT_MBYTE
  /*
   * When using Unicode characters (in UTF-8 encoding) the character in
   * ScreenLinesUC[] contains the Unicode for the character at this position, or
   * NUL when the character in ScreenLines[] is to be used (ASCII char).
   * The composing characters are to be drawn on top of the original character.
   * ScreenLinesC[0][off] is only to be used when ScreenLinesUC[off] != 0.
   * Note: These three are only allocated when enc_utf8 is set!
   */
  EXTERN u8char_T	*ScreenLinesUC INIT(= NULL);	/* decoded UTF-8 characters */
  EXTERN u8char_T	*ScreenLinesC[MAX_MCO];		/* composing characters */
  EXTERN int	Screen_mco INIT(= 0);		/* value of p_mco used when
  						   allocating ScreenLinesC[] */
  
  /* Only used for euc-jp: Second byte of a character that starts with 0x8e.
   * These are single-width. */
  EXTERN schar_T	*ScreenLines2 INIT(= NULL);
  #endif
  
  #ifdef FEAT_WINDOWS
  /*
   * Indexes for tab page line:
   *	N > 0 for label of tab page N
   *	N == 0 for no label
   *	N < 0 for closing tab page -N
   *	N == -999 for closing current tab page
   */
  EXTERN short	*TabPageIdxs INIT(= NULL);
  #endif
  
  EXTERN int	screen_Rows INIT(= 0);	    /* actual size of ScreenLines[] */
  EXTERN int	screen_Columns INIT(= 0);   /* actual size of ScreenLines[] */
  
  /*
   * When vgetc() is called, it sets mod_mask to the set of modifiers that are
   * held down based on the MOD_MASK_* symbols that are read first.
   */
  EXTERN int	mod_mask INIT(= 0x0);		/* current key modifiers */
  
  /*
   * Cmdline_row is the row where the command line starts, just below the
   * last window.
   * When the cmdline gets longer than the available space the screen gets
   * scrolled up. After a CTRL-D (show matches), after hitting ':' after
   * "hit return", and for the :global command, the command line is
   * temporarily moved.  The old position is restored with the next call to
   * update_screen().
   */
  EXTERN int	cmdline_row;
  
  EXTERN int	redraw_cmdline INIT(= FALSE);	/* cmdline must be redrawn */
  EXTERN int	clear_cmdline INIT(= FALSE);	/* cmdline must be cleared */
  EXTERN int	mode_displayed INIT(= FALSE);	/* mode is being displayed */
  #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
  EXTERN int	cmdline_star INIT(= FALSE);	/* cmdline is crypted */
  #endif
  
  EXTERN int	exec_from_reg INIT(= FALSE);	/* executing register */
  
  EXTERN int	screen_cleared INIT(= FALSE);	/* screen has been cleared */
  
  /*
   * When '$' is included in 'cpoptions' option set:
   * When a change command is given that deletes only part of a line, a dollar
   * is put at the end of the changed text. dollar_vcol is set to the virtual
   * column of this '$'.  -1 is used to indicate no $ is being displayed.
   */
  EXTERN colnr_T	dollar_vcol INIT(= -1);
  
  #ifdef FEAT_INS_EXPAND
  /*
   * Variables for Insert mode completion.
   */
  
  /* Length in bytes of the text being completed (this is deleted to be replaced
   * by the match.) */
  EXTERN int	compl_length INIT(= 0);
  
  /* Set when character typed while looking for matches and it means we should
   * stop looking for matches. */
  EXTERN int	compl_interrupted INIT(= FALSE);
  
  /* List of flags for method of completion. */
  EXTERN int	compl_cont_status INIT(= 0);
  # define CONT_ADDING	1	/* "normal" or "adding" expansion */
  # define CONT_INTRPT	(2 + 4)	/* a ^X interrupted the current expansion */
  				/* it's set only iff N_ADDS is set */
  # define CONT_N_ADDS	4	/* next ^X<> will add-new or expand-current */
  # define CONT_S_IPOS	8	/* next ^X<> will set initial_pos?
  				 * if so, word-wise-expansion will set SOL */
  # define CONT_SOL	16	/* pattern includes start of line, just for
  				 * word-wise expansion, not set for ^X^L */
  # define CONT_LOCAL	32	/* for ctrl_x_mode 0, ^X^P/^X^N do a local
  				 * expansion, (eg use complete=.) */
  #endif
  
  /*
   * Functions for putting characters in the command line,
   * while keeping ScreenLines[] updated.
   */
  #ifdef FEAT_RIGHTLEFT
  EXTERN int	cmdmsg_rl INIT(= FALSE);    /* cmdline is drawn right to left */
  #endif
  EXTERN int	msg_col;
  EXTERN int	msg_row;
  EXTERN int	msg_scrolled;	/* Number of screen lines that windows have
  				 * scrolled because of printing messages. */
  EXTERN int	msg_scrolled_ign INIT(= FALSE);
  				/* when TRUE don't set need_wait_return in
  				   msg_puts_attr() when msg_scrolled is
  				   non-zero */
  
  EXTERN char_u	*keep_msg INIT(= NULL);	    /* msg to be shown after redraw */
  EXTERN int	keep_msg_attr INIT(= 0);    /* highlight attr for keep_msg */
  EXTERN int	keep_msg_more INIT(= FALSE); /* keep_msg was set by msgmore() */
  EXTERN int	need_fileinfo INIT(= FALSE);/* do fileinfo() after redraw */
  EXTERN int	msg_scroll INIT(= FALSE);   /* msg_start() will scroll */
  EXTERN int	msg_didout INIT(= FALSE);   /* msg_outstr() was used in line */
  EXTERN int	msg_didany INIT(= FALSE);   /* msg_outstr() was used at all */
  EXTERN int	msg_nowait INIT(= FALSE);   /* don't wait for this msg */
  EXTERN int	emsg_off INIT(= 0);	    /* don't display errors for now,
  					       unless 'debug' is set. */
  EXTERN int	info_message INIT(= FALSE); /* printing informative message */
  EXTERN int      msg_hist_off INIT(= FALSE); /* don't add messages to history */
  #ifdef FEAT_EVAL
  EXTERN int	need_clr_eos INIT(= FALSE); /* need to clear text before
  					       displaying a message. */
  EXTERN int	emsg_skip INIT(= 0);	    /* don't display errors for
  					       expression that is skipped */
  EXTERN int	emsg_severe INIT(= FALSE);   /* use message of next of several
  					       emsg() calls for throw */
  EXTERN int	did_endif INIT(= FALSE);    /* just had ":endif" */
  EXTERN dict_T	vimvardict;		    /* Dictionary with v: variables */
  EXTERN dict_T	globvardict;		    /* Dictionary with g: variables */
  #endif
  EXTERN int	did_emsg;		    /* set by emsg() when the message
  					       is displayed or thrown */
  EXTERN int	did_emsg_syntax;	    /* did_emsg set because of a
  					       syntax error */
  EXTERN int	called_emsg;		    /* always set by emsg() */
  EXTERN int	ex_exitval INIT(= 0);	    /* exit value for ex mode */
  EXTERN int	emsg_on_display INIT(= FALSE);	/* there is an error message */
  EXTERN int	rc_did_emsg INIT(= FALSE);  /* vim_regcomp() called emsg() */
  
  EXTERN int	no_wait_return INIT(= 0);   /* don't wait for return for now */
  EXTERN int	need_wait_return INIT(= 0); /* need to wait for return later */
  EXTERN int	did_wait_return INIT(= FALSE);	/* wait_return() was used and
  						   nothing written since then */
  #ifdef FEAT_TITLE
  EXTERN int	need_maketitle INIT(= TRUE); /* call maketitle() soon */
  #endif
  
  EXTERN int	quit_more INIT(= FALSE);    /* 'q' hit at "--more--" msg */
  #if defined(UNIX) || defined(__EMX__) || defined(VMS) || defined(MACOS_X)
  EXTERN int	newline_on_exit INIT(= FALSE);	/* did msg in altern. screen */
  EXTERN int	intr_char INIT(= 0);	    /* extra interrupt character */
  #endif
  #if (defined(UNIX) || defined(VMS)) && defined(FEAT_X11)
  EXTERN int	x_no_connect INIT(= FALSE); /* don't connect to X server */
  # if defined(FEAT_CLIENTSERVER)
  EXTERN int	x_force_connect INIT(= FALSE); /* Do connect to X server.
  						  Overrules x_no_connect and
  						  "exclude" in 'clipboard'. */
  # endif
  #endif
  EXTERN int	ex_keep_indent INIT(= FALSE); /* getexmodeline(): keep indent */
  EXTERN int	vgetc_busy INIT(= 0);	    /* when inside vgetc() then > 0 */
  
  EXTERN int	didset_vim INIT(= FALSE);   /* did set $VIM ourselves */
  EXTERN int	didset_vimruntime INIT(= FALSE);   /* idem for $VIMRUNTIME */
  
  /*
   * Lines left before a "more" message.	Ex mode needs to be able to reset this
   * after you type something.
   */
  EXTERN int	lines_left INIT(= -1);	    /* lines left for listing */
  EXTERN int	msg_no_more INIT(= FALSE);  /* don't use more prompt, truncate
  					       messages */
  
  EXTERN char_u	*sourcing_name INIT( = NULL);/* name of error message source */
  EXTERN linenr_T	sourcing_lnum INIT(= 0);    /* line number of the source file */
  
  #ifdef FEAT_EVAL
  EXTERN int	ex_nesting_level INIT(= 0);	/* nesting level */
  EXTERN int	debug_break_level INIT(= -1);	/* break below this level */
  EXTERN int	debug_did_msg INIT(= FALSE);	/* did "debug mode" message */
  EXTERN int	debug_tick INIT(= 0);		/* breakpoint change count */
  # ifdef FEAT_PROFILE
  EXTERN int	do_profiling INIT(= PROF_NONE);	/* PROF_ values */
  # endif
  
  /*
   * The exception currently being thrown.  Used to pass an exception to
   * a different cstack.  Also used for discarding an exception before it is
   * caught or made pending.  Only valid when did_throw is TRUE.
   */
  EXTERN except_T *current_exception;
  
  /*
   * did_throw: An exception is being thrown.  Reset when the exception is caught
   * or as long as it is pending in a finally clause.
   */
  EXTERN int did_throw INIT(= FALSE);
  
  /*
   * need_rethrow: set to TRUE when a throw that cannot be handled in do_cmdline()
   * must be propagated to the cstack of the previously called do_cmdline().
   */
  EXTERN int need_rethrow INIT(= FALSE);
  
  /*
   * check_cstack: set to TRUE when a ":finish" or ":return" that cannot be
   * handled in do_cmdline() must be propagated to the cstack of the previously
   * called do_cmdline().
   */
  EXTERN int check_cstack INIT(= FALSE);
  
  /*
   * Number of nested try conditionals (across function calls and ":source"
   * commands).
   */
  EXTERN int trylevel INIT(= 0);
  
  /*
   * When "force_abort" is TRUE, always skip commands after an error message,
   * even after the outermost ":endif", ":endwhile" or ":endfor" or for a
   * function without the "abort" flag.  It is set to TRUE when "trylevel" is
   * non-zero (and ":silent!" was not used) or an exception is being thrown at
   * the time an error is detected.  It is set to FALSE when "trylevel" gets
   * zero again and there was no error or interrupt or throw.
   */
  EXTERN int force_abort INIT(= FALSE);
  
  /*
   * "msg_list" points to a variable in the stack of do_cmdline() which keeps
   * the list of arguments of several emsg() calls, one of which is to be
   * converted to an error exception immediately after the failing command
   * returns.  The message to be used for the exception value is pointed to by
   * the "throw_msg" field of the first element in the list.  It is usually the
   * same as the "msg" field of that element, but can be identical to the "msg"
   * field of a later list element, when the "emsg_severe" flag was set when the
   * emsg() call was made.
   */
  EXTERN struct msglist **msg_list INIT(= NULL);
  
  /*
   * suppress_errthrow: When TRUE, don't convert an error to an exception.  Used
   * when displaying the interrupt message or reporting an exception that is still
   * uncaught at the top level (which has already been discarded then).  Also used
   * for the error message when no exception can be thrown.
   */
  EXTERN int suppress_errthrow INIT(= FALSE);
  
  /*
   * The stack of all caught and not finished exceptions.  The exception on the
   * top of the stack is the one got by evaluation of v:exception.  The complete
   * stack of all caught and pending exceptions is embedded in the various
   * cstacks; the pending exceptions, however, are not on the caught stack.
   */
  EXTERN except_T *caught_stack INIT(= NULL);
  
  #endif
  
  #ifdef FEAT_EVAL
  /*
   * Garbage collection can only take place when we are sure there are no Lists
   * or Dictionaries being used internally.  This is flagged with
   * "may_garbage_collect" when we are at the toplevel.
   * "want_garbage_collect" is set by the garbagecollect() function, which means
   * we do garbage collection before waiting for a char at the toplevel.
   * "garbage_collect_at_exit" indicates garbagecollect(1) was called.
   */
  EXTERN int	may_garbage_collect INIT(= FALSE);
  EXTERN int	want_garbage_collect INIT(= FALSE);
  EXTERN int	garbage_collect_at_exit INIT(= FALSE);
  
  /* ID of script being sourced or was sourced to define the current function. */
  EXTERN scid_T	current_SID INIT(= 0);
  #endif
  
  #if defined(FEAT_EVAL) || defined(FEAT_SYN_HL)
  /* Magic number used for hashitem "hi_key" value indicating a deleted item.
   * Only the address is used. */
  EXTERN char_u	hash_removed;
  #endif
  
  
  EXTERN int	scroll_region INIT(= FALSE); /* term supports scroll region */
  EXTERN int	t_colors INIT(= 0);	    /* int value of T_CCO */
  
  /*
   * When highlight_match is TRUE, highlight a match, starting at the cursor
   * position.  Search_match_lines is the number of lines after the match (0 for
   * a match within one line), search_match_endcol the column number of the
   * character just after the match in the last line.
   */
  EXTERN int	highlight_match INIT(= FALSE);	/* show search match pos */
  EXTERN linenr_T	search_match_lines;		/* lines of of matched string */
  EXTERN colnr_T	search_match_endcol;		/* col nr of match end */
  
  EXTERN int	no_smartcase INIT(= FALSE);	/* don't use 'smartcase' once */
  
  EXTERN int	need_check_timestamps INIT(= FALSE); /* need to check file
  							timestamps asap */
  EXTERN int	did_check_timestamps INIT(= FALSE); /* did check timestamps
  						       recently */
  EXTERN int	no_check_timestamps INIT(= 0);	/* Don't check timestamps */
  
  EXTERN int	highlight_attr[HLF_COUNT];  /* Highl. attr for each context. */
  #ifdef FEAT_STL_OPT
  # define USER_HIGHLIGHT
  #endif
  #ifdef USER_HIGHLIGHT
  EXTERN int	highlight_user[9];		/* User[1-9] attributes */
  # ifdef FEAT_STL_OPT
  EXTERN int	highlight_stlnc[9];		/* On top of user */
  # endif
  #endif
  #ifdef FEAT_GUI
  EXTERN char_u	*use_gvimrc INIT(= NULL);	/* "-U" cmdline argument */
  #endif
  EXTERN int	cterm_normal_fg_color INIT(= 0);
  EXTERN int	cterm_normal_fg_bold INIT(= 0);
  EXTERN int	cterm_normal_bg_color INIT(= 0);
  
  #ifdef FEAT_AUTOCMD
  EXTERN int	autocmd_busy INIT(= FALSE);	/* Is apply_autocmds() busy? */
  EXTERN int	autocmd_no_enter INIT(= FALSE); /* *Enter autocmds disabled */
  EXTERN int	autocmd_no_leave INIT(= FALSE); /* *Leave autocmds disabled */
  EXTERN int	modified_was_set;		/* did ":set modified" */
  EXTERN int	did_filetype INIT(= FALSE);	/* FileType event found */
  EXTERN int	keep_filetype INIT(= FALSE);	/* value for did_filetype when
  						   starting to execute
  						   autocommands */
  
  /* When deleting the current buffer, another one must be loaded.  If we know
   * which one is preferred, au_new_curbuf is set to it */
  EXTERN buf_T	*au_new_curbuf INIT(= NULL);
  
  /* When deleting a buffer/window and autocmd_busy is TRUE, do not free the
   * buffer/window. but link it in the list starting with
   * au_pending_free_buf/ap_pending_free_win, using b_next/w_next.
   * Free the buffer/window when autocmd_busy is being set to FALSE. */
  EXTERN buf_T	*au_pending_free_buf INIT(= NULL);
  EXTERN win_T	*au_pending_free_win INIT(= NULL);
  #endif
  
  #ifdef FEAT_MOUSE
  /*
   * Mouse coordinates, set by check_termcode()
   */
  EXTERN int	mouse_row;
  EXTERN int	mouse_col;
  EXTERN int	mouse_past_bottom INIT(= FALSE);/* mouse below last line */
  EXTERN int	mouse_past_eol INIT(= FALSE);	/* mouse right of line */
  EXTERN int	mouse_dragging INIT(= 0);	/* extending Visual area with
  						   mouse dragging */
  # if defined(FEAT_MOUSE_DEC)
  /*
   * When the DEC mouse has been pressed but not yet released we enable
   * automatic querys for the mouse position.
   */
  EXTERN int	WantQueryMouse INIT(= FALSE);
  # endif
  
  # ifdef FEAT_GUI
  /* When the window layout is about to be changed, need_mouse_correct is set,
   * so that gui_mouse_correct() is called afterwards, to correct the mouse
   * pointer when focus-follow-mouse is being used. */
  EXTERN int	need_mouse_correct INIT(= FALSE);
  
  /* When double clicking, topline must be the same */
  EXTERN linenr_T gui_prev_topline INIT(= 0);
  #  ifdef FEAT_DIFF
  EXTERN int	gui_prev_topfill INIT(= 0);
  #  endif
  # endif
  
  # ifdef FEAT_MOUSESHAPE
  EXTERN int	drag_status_line INIT(= FALSE);	/* dragging the status line */
  EXTERN int	postponed_mouseshape INIT(= FALSE); /* postponed updating the
  						       mouse pointer shape */
  #  ifdef FEAT_VERTSPLIT
  EXTERN int	drag_sep_line INIT(= FALSE);	/* dragging vert separator */
  #  endif
  # endif
  
  #endif
  
  #ifdef FEAT_DIFF
  /* Value set from 'diffopt'. */
  EXTERN int	diff_context INIT(= 6);		/* context for folds */
  EXTERN int	diff_foldcolumn INIT(= 2);	/* 'foldcolumn' for diff mode */
  EXTERN int	diff_need_scrollbind INIT(= FALSE);
  #endif
  
  #ifdef FEAT_MENU
  /* The root of the menu hierarchy. */
  EXTERN vimmenu_T	*root_menu INIT(= NULL);
  /*
   * While defining the system menu, sys_menu is TRUE.  This avoids
   * overruling of menus that the user already defined.
   */
  EXTERN int	sys_menu INIT(= FALSE);
  #endif
  
  /* While redrawing the screen this flag is set.  It means the screen size
   * ('lines' and 'rows') must not be changed. */
  EXTERN int	updating_screen INIT(= FALSE);
  
  #ifdef FEAT_GUI
  # ifdef FEAT_MENU
  /* Menu item just selected, set by check_termcode() */
  EXTERN vimmenu_T	*current_menu;
  
  /* Set to TRUE after adding/removing menus to ensure they are updated */
  EXTERN int force_menu_update INIT(= FALSE);
  # endif
  # ifdef FEAT_GUI_TABLINE
  /* Tab in tab pages line just selected, set by check_termcode() */
  EXTERN int	    current_tab;
  
  /* Menu entry in tab pages line menu just selected, set by check_termcode() */
  EXTERN int	    current_tabmenu;
  #  define TABLINE_MENU_CLOSE	1
  #  define TABLINE_MENU_NEW	2
  #  define TABLINE_MENU_OPEN	3
  # endif
  
  /* Scrollbar moved and new value, set by check_termcode() */
  EXTERN int	current_scrollbar;
  EXTERN long_u	scrollbar_value;
  
  /* found "-rv" or "-reverse" in command line args */
  EXTERN int	found_reverse_arg INIT(= FALSE);
  
  /* "-fn" or "-font" command line argument */
  EXTERN char	*font_argument INIT(= NULL);
  
  # ifdef FEAT_GUI_GTK
  /* "-bg" or "-background" command line argument */
  EXTERN char	*background_argument INIT(= NULL);
  
  /* "-fg" or "-foreground" command line argument */
  EXTERN char	*foreground_argument INIT(= NULL);
  # endif
  
  /*
   * While executing external commands or in Ex mode, should not insert GUI
   * events in the input buffer: Set hold_gui_events to non-zero.
   *
   * volatile because it is used in signal handler sig_sysmouse().
   */
  EXTERN volatile int hold_gui_events INIT(= 0);
  
  /*
   * When resizing the shell is postponed, remember the new size, and call
   * gui_resize_shell() later.
   */
  EXTERN int	new_pixel_width INIT(= 0);
  EXTERN int	new_pixel_height INIT(= 0);
  
  /* Window position from ":winpos", to be used when opening the GUI window. */
  EXTERN int	gui_win_x INIT(= -1);
  EXTERN int	gui_win_y INIT(= -1);
  #endif
  
  #ifdef FEAT_CLIPBOARD
  EXTERN VimClipboard clip_star;	/* PRIMARY selection in X11 */
  # ifdef FEAT_X11
  EXTERN VimClipboard clip_plus;	/* CLIPBOARD selection in X11 */
  # else
  #  define clip_plus clip_star	/* there is only one clipboard */
  #  define ONE_CLIPBOARD
  # endif
  
  # define CLIP_UNNAMED      1
  # define CLIP_UNNAMED_PLUS 2
  EXTERN int	clip_unnamed INIT(= 0); /* above two values or'ed */
  
  EXTERN int	clip_autoselect_star INIT(= FALSE);
  EXTERN int	clip_autoselect_plus INIT(= FALSE);
  EXTERN int	clip_autoselectml INIT(= FALSE);
  EXTERN int	clip_html INIT(= FALSE);
  EXTERN regprog_T *clip_exclude_prog INIT(= NULL);
  EXTERN int	clip_did_set_selection INIT(= TRUE);
  EXTERN int	clip_unnamed_saved INIT(= 0);
  #endif
  
  /*
   * All windows are linked in a list. firstwin points to the first entry,
   * lastwin to the last entry (can be the same as firstwin) and curwin to the
   * currently active window.
   * Without the FEAT_WINDOWS they are all equal.
   */
  #ifdef FEAT_WINDOWS
  EXTERN win_T	*firstwin;		/* first window */
  EXTERN win_T	*lastwin;		/* last window */
  EXTERN win_T	*prevwin INIT(= NULL);	/* previous window */
  # define W_NEXT(wp) ((wp)->w_next)
  # define FOR_ALL_WINDOWS(wp) for (wp = firstwin; wp != NULL; wp = wp->w_next)
  /*
   * When using this macro "break" only breaks out of the inner loop. Use "goto"
   * to break out of the tabpage loop.
   */
  # define FOR_ALL_TAB_WINDOWS(tp, wp) \
      for ((tp) = first_tabpage; (tp) != NULL; (tp) = (tp)->tp_next) \
  	for ((wp) = ((tp) == curtab) \
  		? firstwin : (tp)->tp_firstwin; (wp); (wp) = (wp)->w_next)
  #else
  # define firstwin curwin
  # define lastwin curwin
  # define W_NEXT(wp) NULL
  # define FOR_ALL_WINDOWS(wp) wp = curwin;
  # define FOR_ALL_TAB_WINDOWS(tp, wp) wp = curwin;
  #endif
  
  EXTERN win_T	*curwin;	/* currently active window */
  
  #ifdef FEAT_AUTOCMD
  EXTERN win_T	*aucmd_win;	/* window used in aucmd_prepbuf() */
  EXTERN int	aucmd_win_used INIT(= FALSE);	/* aucmd_win is being used */
  #endif
  
  /*
   * The window layout is kept in a tree of frames.  topframe points to the top
   * of the tree.
   */
  EXTERN frame_T	*topframe;	/* top of the window frame tree */
  
  #ifdef FEAT_WINDOWS
  /*
   * Tab pages are alternative topframes.  "first_tabpage" points to the first
   * one in the list, "curtab" is the current one.
   */
  EXTERN tabpage_T    *first_tabpage;
  EXTERN tabpage_T    *curtab;
  EXTERN int	    redraw_tabline INIT(= FALSE);  /* need to redraw tabline */
  #endif
  
  /*
   * All buffers are linked in a list. 'firstbuf' points to the first entry,
   * 'lastbuf' to the last entry and 'curbuf' to the currently active buffer.
   */
  EXTERN buf_T	*firstbuf INIT(= NULL);	/* first buffer */
  EXTERN buf_T	*lastbuf INIT(= NULL);	/* last buffer */
  EXTERN buf_T	*curbuf INIT(= NULL);	/* currently active buffer */
  
  /* Flag that is set when switching off 'swapfile'.  It means that all blocks
   * are to be loaded into memory.  Shouldn't be global... */
  EXTERN int	mf_dont_release INIT(= FALSE);	/* don't release blocks */
  
  /*
   * List of files being edited (global argument list).  curwin->w_alist points
   * to this when the window is using the global argument list.
   */
  EXTERN alist_T	global_alist;	/* global argument list */
  EXTERN int	max_alist_id INIT(= 0);	    /* the previous argument list id */
  EXTERN int	arg_had_last INIT(= FALSE); /* accessed last file in
  					       global_alist */
  
  EXTERN int	ru_col;		/* column for ruler */
  #ifdef FEAT_STL_OPT
  EXTERN int	ru_wid;		/* 'rulerfmt' width of ruler when non-zero */
  #endif
  EXTERN int	sc_col;		/* column for shown command */
  
  #ifdef TEMPDIRNAMES
  EXTERN char_u	*vim_tempdir INIT(= NULL); /* Name of Vim's own temp dir.
  					      Ends in a slash. */
  #endif
  
  /*
   * When starting or exiting some things are done differently (e.g. screen
   * updating).
   */
  EXTERN int	starting INIT(= NO_SCREEN);
  				/* first NO_SCREEN, then NO_BUFFERS and then
  				 * set to 0 when starting up finished */
  EXTERN int	exiting INIT(= FALSE);
  				/* TRUE when planning to exit Vim.  Might
  				 * still keep on running if there is a changed
  				 * buffer. */
  EXTERN int	really_exiting INIT(= FALSE);
  				/* TRUE when we are sure to exit, e.g., after
  				 * a deadly signal */
  /* volatile because it is used in signal handler deathtrap(). */
  EXTERN volatile int full_screen INIT(= FALSE);
  				/* TRUE when doing full-screen output
  				 * otherwise only writing some messages */
  
  EXTERN int	restricted INIT(= FALSE);
  				/* TRUE when started as "rvim" */
  EXTERN int	secure INIT(= FALSE);
  				/* non-zero when only "safe" commands are
  				 * allowed, e.g. when sourcing .exrc or .vimrc
  				 * in current directory */
  
  EXTERN int	textlock INIT(= 0);
  				/* non-zero when changing text and jumping to
  				 * another window or buffer is not allowed */
  
  #ifdef FEAT_AUTOCMD
  EXTERN int	curbuf_lock INIT(= 0);
  				/* non-zero when the current buffer can't be
  				 * changed.  Used for FileChangedRO. */
  EXTERN int	allbuf_lock INIT(= 0);
  				/* non-zero when no buffer name can be
  				 * changed, no buffer can be deleted and
  				 * current directory can't be changed.
  				 * Used for SwapExists et al. */
  #endif
  #ifdef FEAT_EVAL
  # define HAVE_SANDBOX
  EXTERN int	sandbox INIT(= 0);
  				/* Non-zero when evaluating an expression in a
  				 * "sandbox".  Several things are not allowed
  				 * then. */
  #endif
  
  EXTERN int	silent_mode INIT(= FALSE);
  				/* set to TRUE when "-s" commandline argument
  				 * used for ex */
  
  EXTERN pos_T	VIsual;		/* start position of active Visual selection */
  EXTERN int	VIsual_active INIT(= FALSE);
  				/* whether Visual mode is active */
  EXTERN int	VIsual_select INIT(= FALSE);
  				/* whether Select mode is active */
  EXTERN int	VIsual_reselect;
  				/* whether to restart the selection after a
  				 * Select mode mapping or menu */
  
  EXTERN int	VIsual_mode INIT(= 'v');
  				/* type of Visual mode */
  
  EXTERN int	redo_VIsual_busy INIT(= FALSE);
  				/* TRUE when redoing Visual */
  
  #ifdef FEAT_MOUSE
  /*
   * When pasting text with the middle mouse button in visual mode with
   * restart_edit set, remember where it started so we can set Insstart.
   */
  EXTERN pos_T	where_paste_started;
  #endif
  
  /*
   * This flag is used to make auto-indent work right on lines where only a
   * <RETURN> or <ESC> is typed. It is set when an auto-indent is done, and
   * reset when any other editing is done on the line. If an <ESC> or <RETURN>
   * is received, and did_ai is TRUE, the line is truncated.
   */
  EXTERN int     did_ai INIT(= FALSE);
  
  /*
   * Column of first char after autoindent.  0 when no autoindent done.  Used
   * when 'backspace' is 0, to avoid backspacing over autoindent.
   */
  EXTERN colnr_T	ai_col INIT(= 0);
  
  #ifdef FEAT_COMMENTS
  /*
   * This is a character which will end a start-middle-end comment when typed as
   * the first character on a new line.  It is taken from the last character of
   * the "end" comment leader when the COM_AUTO_END flag is given for that
   * comment end in 'comments'.  It is only valid when did_ai is TRUE.
   */
  EXTERN int     end_comment_pending INIT(= NUL);
  #endif
  
  #ifdef FEAT_SCROLLBIND
  /*
   * This flag is set after a ":syncbind" to let the check_scrollbind() function
   * know that it should not attempt to perform scrollbinding due to the scroll
   * that was a result of the ":syncbind." (Otherwise, check_scrollbind() will
   * undo some of the work done by ":syncbind.")  -ralston
   */
  EXTERN int     did_syncbind INIT(= FALSE);
  #endif
  
  #ifdef FEAT_SMARTINDENT
  /*
   * This flag is set when a smart indent has been performed. When the next typed
   * character is a '{' the inserted tab will be deleted again.
   */
  EXTERN int	did_si INIT(= FALSE);
  
  /*
   * This flag is set after an auto indent. If the next typed character is a '}'
   * one indent will be removed.
   */
  EXTERN int	can_si INIT(= FALSE);
  
  /*
   * This flag is set after an "O" command. If the next typed character is a '{'
   * one indent will be removed.
   */
  EXTERN int	can_si_back INIT(= FALSE);
  #endif
  
  EXTERN pos_T	saved_cursor		/* w_cursor before formatting text. */
  #ifdef DO_INIT
  	= INIT_POS_T(0, 0, 0)
  #endif
  	;
  
  /*
   * Stuff for insert mode.
   */
  EXTERN pos_T	Insstart;		/* This is where the latest
  					 * insert/append mode started. */
  
  /* This is where the latest insert/append mode started. In contrast to
   * Insstart, this won't be reset by certain keys and is needed for
   * op_insert(), to detect correctly where inserting by the user started. */
  EXTERN pos_T	Insstart_orig;
  
  #ifdef FEAT_VREPLACE
  /*
   * Stuff for VREPLACE mode.
   */
  EXTERN int	orig_line_count INIT(= 0);  /* Line count when "gR" started */
  EXTERN int	vr_lines_changed INIT(= 0); /* #Lines changed by "gR" so far */
  #endif
  
  #if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)
  /* argument to SETJMP() for handling X IO errors */
  EXTERN JMP_BUF x_jump_env;
  #endif
  
  #if defined(HAVE_SETJMP_H)
  /*
   * Stuff for setjmp() and longjmp().
   * Used to protect areas where we could crash.
   */
  EXTERN JMP_BUF lc_jump_env;	/* argument to SETJMP() */
  # ifdef SIGHASARG
  /* volatile because it is used in signal handlers. */
  EXTERN volatile int lc_signal;	/* caught signal number, 0 when no was signal
  				   caught; used for mch_libcall() */
  # endif
  /* volatile because it is used in signal handler deathtrap(). */
  EXTERN volatile int lc_active INIT(= FALSE); /* TRUE when lc_jump_env is valid. */
  #endif
  
  #if defined(FEAT_MBYTE) || defined(FEAT_POSTSCRIPT)
  /*
   * These flags are set based upon 'fileencoding'.
   * Note that "enc_utf8" is also set for "unicode", because the characters are
   * internally stored as UTF-8 (to avoid trouble with NUL bytes).
   */
  # define DBCS_JPN	932	/* japan */
  # define DBCS_JPNU	9932	/* euc-jp */
  # define DBCS_KOR	949	/* korea */
  # define DBCS_KORU	9949	/* euc-kr */
  # define DBCS_CHS	936	/* chinese */
  # define DBCS_CHSU	9936	/* euc-cn */
  # define DBCS_CHT	950	/* taiwan */
  # define DBCS_CHTU	9950	/* euc-tw */
  # define DBCS_2BYTE	1	/* 2byte- */
  # define DBCS_DEBUG	-1
  #endif
  
  #ifdef FEAT_MBYTE
  EXTERN int	enc_dbcs INIT(= 0);		/* One of DBCS_xxx values if
  						   DBCS encoding */
  EXTERN int	enc_unicode INIT(= 0);	/* 2: UCS-2 or UTF-16, 4: UCS-4 */
  EXTERN int	enc_utf8 INIT(= FALSE);		/* UTF-8 encoded Unicode */
  EXTERN int	enc_latin1like INIT(= TRUE);	/* 'encoding' is latin1 comp. */
  # if defined(WIN3264) || defined(FEAT_CYGWIN_WIN32_CLIPBOARD)
  /* Codepage nr of 'encoding'.  Negative means it's not been set yet, zero
   * means 'encoding' is not a valid codepage. */
  EXTERN int	enc_codepage INIT(= -1);
  EXTERN int	enc_latin9 INIT(= FALSE);	/* 'encoding' is latin9 */
  # endif
  EXTERN int	has_mbyte INIT(= 0);		/* any multi-byte encoding */
  
  # if defined(WIN3264) && defined(FEAT_MBYTE)
  EXTERN int	wide_WindowProc INIT(= FALSE);	/* use wide WindowProc() */
  # endif
  
  /*
   * To speed up BYTELEN() we fill a table with the byte lengths whenever
   * enc_utf8 or enc_dbcs changes.
   */
  EXTERN char	mb_bytelen_tab[256];
  
  /* Variables that tell what conversion is used for keyboard input and display
   * output. */
  EXTERN vimconv_T input_conv;			/* type of input conversion */
  EXTERN vimconv_T output_conv;			/* type of output conversion */
  
  /*
   * Function pointers, used to quickly get to the right function.  Each has
   * three possible values: latin_ (8-bit), utfc_ or utf_ (utf-8) and dbcs_
   * (DBCS).
   * The value is set in mb_init();
   */
  /* length of char in bytes, including following composing chars */
  EXTERN int (*mb_ptr2len) __ARGS((char_u *p)) INIT(= latin_ptr2len);
  /* idem, with limit on string length */
  EXTERN int (*mb_ptr2len_len) __ARGS((char_u *p, int size)) INIT(= latin_ptr2len_len);
  /* byte length of char */
  EXTERN int (*mb_char2len) __ARGS((int c)) INIT(= latin_char2len);
  /* convert char to bytes, return the length */
  EXTERN int (*mb_char2bytes) __ARGS((int c, char_u *buf)) INIT(= latin_char2bytes);
  EXTERN int (*mb_ptr2cells) __ARGS((char_u *p)) INIT(= latin_ptr2cells);
  EXTERN int (*mb_ptr2cells_len) __ARGS((char_u *p, int size)) INIT(= latin_ptr2cells_len);
  EXTERN int (*mb_char2cells) __ARGS((int c)) INIT(= latin_char2cells);
  EXTERN int (*mb_off2cells) __ARGS((unsigned off, unsigned max_off)) INIT(= latin_off2cells);
  EXTERN int (*mb_ptr2char) __ARGS((char_u *p)) INIT(= latin_ptr2char);
  EXTERN int (*mb_head_off) __ARGS((char_u *base, char_u *p)) INIT(= latin_head_off);
  
  # if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
  /* Pointers to functions and variables to be loaded at runtime */
  EXTERN size_t (*iconv) (iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
  EXTERN iconv_t (*iconv_open) (const char *tocode, const char *fromcode);
  EXTERN int (*iconv_close) (iconv_t cd);
  EXTERN int (*iconvctl) (iconv_t cd, int request, void *argument);
  EXTERN int* (*iconv_errno) (void);
  # endif
  
  #endif /* FEAT_MBYTE */
  
  #ifdef FEAT_XIM
  # ifdef FEAT_GUI_GTK
  EXTERN GtkIMContext	*xic INIT(= NULL);
  /*
   * Start and end column of the preedit area in virtual columns from the start
   * of the text line.  When there is no preedit area they are set to MAXCOL.
   * "preedit_end_col" is needed for coloring the preedited string.  Drawing the
   * color between "preedit_start_col" and curpos did not work, because some XIM
   * set the cursor position to the first char of the string.
   */
  EXTERN colnr_T		preedit_start_col INIT(= MAXCOL);
  EXTERN colnr_T		preedit_end_col INIT(= MAXCOL);
  
  /* "xim_changed_while_preediting" is set when changed() can set the 'modified'
   * flag even while preediting. */
  EXTERN int		xim_changed_while_preediting INIT(= FALSE);
  # else
  EXTERN XIC		xic INIT(= NULL);
  # endif
  # ifdef FEAT_GUI
  EXTERN guicolor_T	xim_fg_color INIT(= INVALCOLOR);
  EXTERN guicolor_T	xim_bg_color INIT(= INVALCOLOR);
  # endif
  #endif
  
  #ifdef FEAT_HANGULIN
  EXTERN int		composing_hangul INIT(= 0);
  EXTERN char_u		composing_hangul_buffer[5];
  #endif
  
  /*
   * "State" is the main state of Vim.
   * There are other variables that modify the state:
   * "Visual_mode"    When State is NORMAL or INSERT.
   * "finish_op"	    When State is NORMAL, after typing the operator and before
   *		    typing the motion command.
   */
  EXTERN int	State INIT(= NORMAL);	/* This is the current state of the
  					 * command interpreter. */
  
  EXTERN int	finish_op INIT(= FALSE);/* TRUE while an operator is pending */
  EXTERN int	opcount INIT(= 0);	/* count for pending operator */
  
  /*
   * ex mode (Q) state
   */
  EXTERN int exmode_active INIT(= 0);	/* zero, EXMODE_NORMAL or EXMODE_VIM */
  EXTERN int ex_no_reprint INIT(= FALSE); /* no need to print after z or p */
  
  EXTERN int Recording INIT(= FALSE);	/* TRUE when recording into a reg. */
  EXTERN int Exec_reg INIT(= FALSE);	/* TRUE when executing a register */
  
  EXTERN int no_mapping INIT(= FALSE);	/* currently no mapping allowed */
  EXTERN int no_zero_mapping INIT(= 0);	/* mapping zero not allowed */
  EXTERN int allow_keys INIT(= FALSE);	/* allow key codes when no_mapping
  					 * is set */
  EXTERN int no_u_sync INIT(= 0);		/* Don't call u_sync() */
  #ifdef FEAT_EVAL
  EXTERN int u_sync_once INIT(= 0);	/* Call u_sync() once when evaluating
  					   an expression. */
  #endif
  
  EXTERN int restart_edit INIT(= 0);	/* call edit when next cmd finished */
  EXTERN int arrow_used;			/* Normally FALSE, set to TRUE after
  					 * hitting cursor key in insert mode.
  					 * Used by vgetorpeek() to decide when
  					 * to call u_sync() */
  EXTERN int	ins_at_eol INIT(= FALSE); /* put cursor after eol when
  					   restarting edit after CTRL-O */
  #ifdef FEAT_INS_EXPAND
  EXTERN char_u	*edit_submode INIT(= NULL); /* msg for CTRL-X submode */
  EXTERN char_u	*edit_submode_pre INIT(= NULL); /* prepended to edit_submode */
  EXTERN char_u	*edit_submode_extra INIT(= NULL);/* appended to edit_submode */
  EXTERN hlf_T	edit_submode_highl;	/* highl. method for extra info */
  EXTERN int	ctrl_x_mode INIT(= 0);	/* Which Ctrl-X mode are we in? */
  #endif
  
  EXTERN int	no_abbr INIT(= TRUE);	/* TRUE when no abbreviations loaded */
  #ifdef MSDOS
  EXTERN int	beep_count INIT(= 0);	/* nr of beeps since last char typed */
  #endif
  
  #ifdef USE_EXE_NAME
  EXTERN char_u	*exe_name;		/* the name of the executable */
  #endif
  
  #ifdef USE_ON_FLY_SCROLL
  EXTERN int	dont_scroll INIT(= FALSE);/* don't use scrollbars when TRUE */
  #endif
  EXTERN int	mapped_ctrl_c INIT(= FALSE); /* CTRL-C is mapped */
  EXTERN int	ctrl_c_interrupts INIT(= TRUE);	/* CTRL-C sets got_int */
  
  EXTERN cmdmod_T	cmdmod;			/* Ex command modifiers */
  
  EXTERN int	msg_silent INIT(= 0);	/* don't print messages */
  EXTERN int	emsg_silent INIT(= 0);	/* don't print error messages */
  EXTERN int	cmd_silent INIT(= FALSE); /* don't echo the command line */
  
  #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG) \
  	|| defined(FEAT_AUTOCMD)
  # define HAS_SWAP_EXISTS_ACTION
  EXTERN int	swap_exists_action INIT(= SEA_NONE);
  					/* For dialog when swap file already
  					 * exists. */
  EXTERN int	swap_exists_did_quit INIT(= FALSE);
  					/* Selected "quit" at the dialog. */
  #endif
  
  EXTERN char_u	*IObuff;		/* sprintf's are done in this buffer,
  					   size is IOSIZE */
  EXTERN char_u	*NameBuff;		/* file names are expanded in this
  					 * buffer, size is MAXPATHL */
  EXTERN char_u	msg_buf[MSG_BUF_LEN];	/* small buffer for messages */
  
  /* When non-zero, postpone redrawing. */
  EXTERN int	RedrawingDisabled INIT(= 0);
  
  EXTERN int	readonlymode INIT(= FALSE); /* Set to TRUE for "view" */
  EXTERN int	recoverymode INIT(= FALSE); /* Set to TRUE for "-r" option */
  
  EXTERN typebuf_T typebuf		/* typeahead buffer */
  #ifdef DO_INIT
  		    = {NULL, NULL, 0, 0, 0, 0, 0, 0, 0}
  #endif
  		    ;
  #ifdef FEAT_EX_EXTRA
  EXTERN int	ex_normal_busy INIT(= 0); /* recursiveness of ex_normal() */
  EXTERN int	ex_normal_lock INIT(= 0); /* forbid use of ex_normal() */
  #endif
  #ifdef FEAT_EVAL
  EXTERN int	ignore_script INIT(= FALSE);  /* ignore script input */
  #endif
  EXTERN int	stop_insert_mode;	/* for ":stopinsert" and 'insertmode' */
  
  EXTERN int	KeyTyped;		/* TRUE if user typed current char */
  EXTERN int	KeyStuffed;		/* TRUE if current char from stuffbuf */
  #ifdef USE_IM_CONTROL
  EXTERN int	vgetc_im_active;	/* Input Method was active for last
  					   character obtained from vgetc() */
  #endif
  EXTERN int	maptick INIT(= 0);	/* tick for each non-mapped char */
  
  EXTERN char_u	chartab[256];		/* table used in charset.c; See
  					   init_chartab() for explanation */
  
  EXTERN int	must_redraw INIT(= 0);	    /* type of redraw necessary */
  EXTERN int	skip_redraw INIT(= FALSE);  /* skip redraw once */
  EXTERN int	do_redraw INIT(= FALSE);    /* extra redraw once */
  
  EXTERN int	need_highlight_changed INIT(= TRUE);
  EXTERN char_u	*use_viminfo INIT(= NULL);  /* name of viminfo file to use */
  
  #define NSCRIPT 15
  EXTERN FILE	*scriptin[NSCRIPT];	    /* streams to read script from */
  EXTERN int	curscript INIT(= 0);	    /* index in scriptin[] */
  EXTERN FILE	*scriptout  INIT(= NULL);   /* stream to write script to */
  EXTERN int	read_cmd_fd INIT(= 0);	    /* fd to read commands from */
  
  /* volatile because it is used in signal handler catch_sigint(). */
  EXTERN volatile int got_int INIT(= FALSE);    /* set to TRUE when interrupt
  						signal occurred */
  #ifdef USE_TERM_CONSOLE
  EXTERN int	term_console INIT(= FALSE); /* set to TRUE when console used */
  #endif
  EXTERN int	termcap_active INIT(= FALSE);	/* set by starttermcap() */
  EXTERN int	cur_tmode INIT(= TMODE_COOK);	/* input terminal mode */
  EXTERN int	bangredo INIT(= FALSE);	    /* set to TRUE with ! command */
  EXTERN int	searchcmdlen;		    /* length of previous search cmd */
  #ifdef FEAT_SYN_HL
  EXTERN int	reg_do_extmatch INIT(= 0);  /* Used when compiling regexp:
  					     * REX_SET to allow \z\(...\),
  					     * REX_USE to allow \z\1 et al. */
  EXTERN reg_extmatch_T *re_extmatch_in INIT(= NULL); /* Used by vim_regexec():
  					     * strings for \z\1...\z\9 */
  EXTERN reg_extmatch_T *re_extmatch_out INIT(= NULL); /* Set by vim_regexec()
  					     * to store \z\(...\) matches */
  #endif
  
  EXTERN int	did_outofmem_msg INIT(= FALSE);
  					    /* set after out of memory msg */
  EXTERN int	did_swapwrite_msg INIT(= FALSE);
  					    /* set after swap write error msg */
  EXTERN int	undo_off INIT(= FALSE);	    /* undo switched off for now */
  EXTERN int	global_busy INIT(= 0);	    /* set when :global is executing */
  EXTERN int	listcmd_busy INIT(= FALSE); /* set when :argdo, :windo or
  					       :bufdo is executing */
  EXTERN int	need_start_insertmode INIT(= FALSE);
  					    /* start insert mode soon */
  EXTERN char_u	*last_cmdline INIT(= NULL); /* last command line (for ":) */
  EXTERN char_u	*repeat_cmdline INIT(= NULL); /* command line for "." */
  #ifdef FEAT_CMDHIST
  EXTERN char_u	*new_last_cmdline INIT(= NULL);	/* new value for last_cmdline */
  #endif
  #ifdef FEAT_AUTOCMD
  EXTERN char_u	*autocmd_fname INIT(= NULL); /* fname for <afile> on cmdline */
  EXTERN int	autocmd_fname_full;	     /* autocmd_fname is full path */
  EXTERN int	autocmd_bufnr INIT(= 0);     /* fnum for <abuf> on cmdline */
  EXTERN char_u	*autocmd_match INIT(= NULL); /* name for <amatch> on cmdline */
  EXTERN int	did_cursorhold INIT(= FALSE); /* set when CursorHold t'gerd */
  EXTERN pos_T	last_cursormoved	      /* for CursorMoved event */
  # ifdef DO_INIT
  			= INIT_POS_T(0, 0, 0)
  # endif
  			;
  EXTERN int	last_changedtick INIT(= 0);   /* for TextChanged event */
  EXTERN buf_T	*last_changedtick_buf INIT(= NULL);
  #endif
  
  #ifdef FEAT_WINDOWS
  EXTERN int	postponed_split INIT(= 0);  /* for CTRL-W CTRL-] command */
  EXTERN int	postponed_split_flags INIT(= 0);  /* args for win_split() */
  EXTERN int	postponed_split_tab INIT(= 0);  /* cmdmod.tab */
  # ifdef FEAT_QUICKFIX
  EXTERN int	g_do_tagpreview INIT(= 0);  /* for tag preview commands:
  					       height of preview window */
  # endif
  #endif
  EXTERN int	replace_offset INIT(= 0);   /* offset for replace_push() */
  
  EXTERN char_u	*escape_chars INIT(= (char_u *)" \t\\\"|");
  					    /* need backslash in cmd line */
  
  EXTERN int	keep_help_flag INIT(= FALSE); /* doing :ta from help file */
  
  /*
   * When a string option is NULL (which only happens in out-of-memory
   * situations), it is set to empty_option, to avoid having to check for NULL
   * everywhere.
   */
  EXTERN char_u	*empty_option INIT(= (char_u *)"");
  
  EXTERN int  redir_off INIT(= FALSE);	/* no redirection for a moment */
  EXTERN FILE *redir_fd INIT(= NULL);	/* message redirection file */
  #ifdef FEAT_EVAL
  EXTERN int  redir_reg INIT(= 0);	/* message redirection register */
  EXTERN int  redir_vname INIT(= 0);	/* message redirection variable */
  #endif
  
  #ifdef FEAT_LANGMAP
  EXTERN char_u	langmap_mapchar[256];	/* mapping for language keys */
  #endif
  
  #ifdef FEAT_WILDMENU
  EXTERN int  save_p_ls INIT(= -1);	/* Save 'laststatus' setting */
  EXTERN int  save_p_wmh INIT(= -1);	/* Save 'winminheight' setting */
  EXTERN int  wild_menu_showing INIT(= 0);
  # define WM_SHOWN	1		/* wildmenu showing */
  # define WM_SCROLLED	2		/* wildmenu showing with scroll */
  #endif
  
  #ifdef MSWIN
  EXTERN char_u	toupper_tab[256];	/* table for toupper() */
  EXTERN char_u	tolower_tab[256];	/* table for tolower() */
  #endif
  
  #ifdef FEAT_LINEBREAK
  EXTERN char	breakat_flags[256];	/* which characters are in 'breakat' */
  #endif
  
  /* these are in version.c */
  extern char *Version;
  #if defined(HAVE_DATE_TIME) && defined(VMS) && defined(VAXC)
  extern char longVersion[];
  #else
  extern char *longVersion;
  #endif
  
  /*
   * Some file names are stored in pathdef.c, which is generated from the
   * Makefile to make their value depend on the Makefile.
   */
  #ifdef HAVE_PATHDEF
  extern char_u *default_vim_dir;
  extern char_u *default_vimruntime_dir;
  extern char_u *all_cflags;
  extern char_u *all_lflags;
  # ifdef VMS
  extern char_u *compiler_version;
  extern char_u *compiled_arch;
  # endif
  extern char_u *compiled_user;
  extern char_u *compiled_sys;
  #endif
  
  /* When a window has a local directory, the absolute path of the global
   * current directory is stored here (in allocated memory).  If the current
   * directory is not a local directory, globaldir is NULL. */
  EXTERN char_u	*globaldir INIT(= NULL);
  
  /* Characters from 'listchars' option */
  EXTERN int	lcs_eol INIT(= '$');
  EXTERN int	lcs_ext INIT(= NUL);
  EXTERN int	lcs_prec INIT(= NUL);
  EXTERN int	lcs_nbsp INIT(= NUL);
  EXTERN int	lcs_tab1 INIT(= NUL);
  EXTERN int	lcs_tab2 INIT(= NUL);
  EXTERN int	lcs_trail INIT(= NUL);
  #ifdef FEAT_CONCEAL
  EXTERN int	lcs_conceal INIT(= '-');
  #endif
  
  #if defined(FEAT_WINDOWS) || defined(FEAT_WILDMENU) || defined(FEAT_STL_OPT) \
  	|| defined(FEAT_FOLDING)
  /* Characters from 'fillchars' option */
  EXTERN int	fill_stl INIT(= ' ');
  EXTERN int	fill_stlnc INIT(= ' ');
  #endif
  #if defined(FEAT_WINDOWS) || defined(FEAT_FOLDING)
  EXTERN int	fill_vert INIT(= ' ');
  EXTERN int	fill_fold INIT(= '-');
  EXTERN int	fill_diff INIT(= '-');
  #endif
  
  /* Whether 'keymodel' contains "stopsel" and "startsel". */
  EXTERN int	km_stopsel INIT(= FALSE);
  EXTERN int	km_startsel INIT(= FALSE);
  
  #ifdef FEAT_CMDWIN
  EXTERN int	cedit_key INIT(= -1);	/* key value of 'cedit' option */
  EXTERN int	cmdwin_type INIT(= 0);	/* type of cmdline window or 0 */
  EXTERN int	cmdwin_result INIT(= 0); /* result of cmdline window or 0 */
  #endif
  
  EXTERN char_u no_lines_msg[]	INIT(= N_("--No lines in buffer--"));
  
  /*
   * When ":global" is used to number of substitutions and changed lines is
   * accumulated until it's finished.
   * Also used for ":spellrepall".
   */
  EXTERN long	sub_nsubs;	/* total number of substitutions */
  EXTERN linenr_T	sub_nlines;	/* total number of lines changed */
  
  /* table to store parsed 'wildmode' */
  EXTERN char_u	wim_flags[4];
  
  #if defined(FEAT_TITLE) && defined(FEAT_STL_OPT)
  /* whether titlestring and iconstring contains statusline syntax */
  # define STL_IN_ICON	1
  # define STL_IN_TITLE	2
  EXTERN int      stl_syntax INIT(= 0);
  #endif
  
  #ifdef FEAT_SEARCH_EXTRA
  /* don't use 'hlsearch' temporarily */
  EXTERN int	no_hlsearch INIT(= FALSE);
  #endif
  
  #if defined(FEAT_BEVAL) && !defined(NO_X11_INCLUDES)
  EXTERN BalloonEval	*balloonEval INIT(= NULL);
  # if defined(FEAT_NETBEANS_INTG) || defined(FEAT_SUN_WORKSHOP)
  EXTERN int bevalServers INIT(= 0);
  #  define BEVAL_NETBEANS		0x01
  #  define BEVAL_WORKSHOP		0x02
  # endif
  #endif
  
  #ifdef CURSOR_SHAPE
  /* the table is in misc2.c, because of initializations */
  extern cursorentry_T shape_table[SHAPE_IDX_COUNT];
  #endif
  
  #ifdef FEAT_PRINTER
  /*
   * Printer stuff shared between hardcopy.c and machine-specific printing code.
   */
  # define OPT_PRINT_TOP		0
  # define OPT_PRINT_BOT		1
  # define OPT_PRINT_LEFT		2
  # define OPT_PRINT_RIGHT	3
  # define OPT_PRINT_HEADERHEIGHT	4
  # define OPT_PRINT_SYNTAX	5
  # define OPT_PRINT_NUMBER	6
  # define OPT_PRINT_WRAP		7
  # define OPT_PRINT_DUPLEX	8
  # define OPT_PRINT_PORTRAIT	9
  # define OPT_PRINT_PAPER	10
  # define OPT_PRINT_COLLATE	11
  # define OPT_PRINT_JOBSPLIT	12
  # define OPT_PRINT_FORMFEED	13
  
  # define OPT_PRINT_NUM_OPTIONS	14
  
  EXTERN option_table_T printer_opts[OPT_PRINT_NUM_OPTIONS]
  # ifdef DO_INIT
   =
  {
      {"top",	TRUE, 0, NULL, 0, FALSE},
      {"bottom",	TRUE, 0, NULL, 0, FALSE},
      {"left",	TRUE, 0, NULL, 0, FALSE},
      {"right",	TRUE, 0, NULL, 0, FALSE},
      {"header",	TRUE, 0, NULL, 0, FALSE},
      {"syntax",	FALSE, 0, NULL, 0, FALSE},
      {"number",	FALSE, 0, NULL, 0, FALSE},
      {"wrap",	FALSE, 0, NULL, 0, FALSE},
      {"duplex",	FALSE, 0, NULL, 0, FALSE},
      {"portrait", FALSE, 0, NULL, 0, FALSE},
      {"paper",	FALSE, 0, NULL, 0, FALSE},
      {"collate",	FALSE, 0, NULL, 0, FALSE},
      {"jobsplit", FALSE, 0, NULL, 0, FALSE},
      {"formfeed", FALSE, 0, NULL, 0, FALSE},
  }
  # endif
  ;
  
  /* For prt_get_unit(). */
  # define PRT_UNIT_NONE	-1
  # define PRT_UNIT_PERC	0
  # define PRT_UNIT_INCH	1
  # define PRT_UNIT_MM	2
  # define PRT_UNIT_POINT	3
  # define PRT_UNIT_NAMES {"pc", "in", "mm", "pt"}
  #endif
  
  #if (defined(FEAT_PRINTER) && defined(FEAT_STL_OPT)) \
  	    || defined(FEAT_GUI_TABLINE)
  /* Page number used for %N in 'pageheader' and 'guitablabel'. */
  EXTERN linenr_T printer_page_num;
  #endif
  
  #ifdef FEAT_XCLIPBOARD
  EXTERN char	*xterm_display INIT(= NULL);	/* xterm display name; points
  						   into argv[] */
  EXTERN Display	*xterm_dpy INIT(= NULL);	/* xterm display pointer */
  #endif
  #if defined(FEAT_XCLIPBOARD) || defined(FEAT_GUI_X11)
  EXTERN XtAppContext app_context INIT(= (XtAppContext)NULL);
  #endif
  
  #ifdef FEAT_GUI_GTK
  EXTERN guint32	gtk_socket_id INIT(= 0);
  EXTERN int	echo_wid_arg INIT(= FALSE);	/* --echo-wid argument */
  #endif
  
  #ifdef FEAT_GUI_W32
  /*
   * The value of the --windowid argument.
   * For embedding gvim inside another application.
   */
  EXTERN long_u	win_socket_id INIT(= 0);
  #endif
  
  #if defined(FEAT_CLIENTSERVER) || defined(FEAT_EVAL)
  EXTERN int	typebuf_was_filled INIT(= FALSE); /* received text from client
  						     or from feedkeys() */
  #endif
  
  #ifdef FEAT_CLIENTSERVER
  EXTERN char_u	*serverName INIT(= NULL);	/* name of the server */
  # ifdef FEAT_X11
  EXTERN Window	commWindow INIT(= None);
  EXTERN Window	clientWindow INIT(= None);
  EXTERN Atom	commProperty INIT(= None);
  EXTERN char_u	*serverDelayedStartName INIT(= NULL);
  # else
  #  ifdef PROTO
  typedef int HWND;
  #  endif
  EXTERN HWND	clientWindow INIT(= 0);
  # endif
  #endif
  
  #if defined(UNIX) || defined(VMS)
  EXTERN int	term_is_xterm INIT(= FALSE);	/* xterm-like 'term' */
  #endif
  
  #ifdef BACKSLASH_IN_FILENAME
  EXTERN char	psepc INIT(= '\\');	/* normal path separator character */
  EXTERN char	psepcN INIT(= '/');	/* abnormal path separator character */
  EXTERN char	pseps[2]		/* normal path separator string */
  # ifdef DO_INIT
  			= {'\\', 0}
  # endif
  			;
  #endif
  
  #ifdef FEAT_VIRTUALEDIT
  /* Set to TRUE when an operator is being executed with virtual editing, MAYBE
   * when no operator is being executed, FALSE otherwise. */
  EXTERN int	virtual_op INIT(= MAYBE);
  #endif
  
  #ifdef FEAT_SYN_HL
  /* Display tick, incremented for each call to update_screen() */
  EXTERN disptick_T	display_tick INIT(= 0);
  #endif
  
  #ifdef FEAT_SPELL
  /* Line in which spell checking wasn't highlighted because it touched the
   * cursor position in Insert mode. */
  EXTERN linenr_T		spell_redraw_lnum INIT(= 0);
  #endif
  
  #ifdef FEAT_CONCEAL
  /* Set when the cursor line needs to be redrawn. */
  EXTERN int		need_cursor_line_redraw INIT(= FALSE);
  #endif
  
  #ifdef ALT_X_INPUT
  /* we need to be able to go into the dispatch loop while processing a command
   * received via alternate input. However, we don't want to process another
   * command until the first is completed.
   */
  EXTERN int	suppress_alternate_input INIT(= FALSE);
  #endif
  
  #ifdef USE_MCH_ERRMSG
  /* Grow array to collect error messages in until they can be displayed. */
  EXTERN garray_T error_ga
  # ifdef DO_INIT
  	= {0, 0, 0, 0, NULL}
  # endif
  	;
  #endif
  
  #ifdef FEAT_NETBEANS_INTG
  EXTERN char *netbeansArg INIT(= NULL);	/* the -nb[:host:port:passwd] arg */
  EXTERN int netbeansFireChanges INIT(= 1); /* send buffer changes if != 0 */
  EXTERN int netbeansForcedQuit INIT(= 0);/* don't write modified files */
  EXTERN int netbeansReadFile INIT(= 1);	/* OK to read from disk if != 0 */
  EXTERN int netbeansSuppressNoLines INIT(= 0); /* skip "No lines in buffer" */
  #endif
  
  /*
   * The error messages that can be shared are included here.
   * Excluded are errors that are only used once and debugging messages.
   */
  EXTERN char_u e_abort[]		INIT(= N_("E470: Command aborted"));
  EXTERN char_u e_argreq[]	INIT(= N_("E471: Argument required"));
  EXTERN char_u e_backslash[]	INIT(= N_("E10: \\ should be followed by /, ? or &"));
  #ifdef FEAT_CMDWIN
  EXTERN char_u e_cmdwin[]	INIT(= N_("E11: Invalid in command-line window; <CR> executes, CTRL-C quits"));
  #endif
  EXTERN char_u e_curdir[]	INIT(= N_("E12: Command not allowed from exrc/vimrc in current dir or tag search"));
  #ifdef FEAT_EVAL
  EXTERN char_u e_endif[]		INIT(= N_("E171: Missing :endif"));
  EXTERN char_u e_endtry[]	INIT(= N_("E600: Missing :endtry"));
  EXTERN char_u e_endwhile[]	INIT(= N_("E170: Missing :endwhile"));
  EXTERN char_u e_endfor[]	INIT(= N_("E170: Missing :endfor"));
  EXTERN char_u e_while[]		INIT(= N_("E588: :endwhile without :while"));
  EXTERN char_u e_for[]		INIT(= N_("E588: :endfor without :for"));
  #endif
  EXTERN char_u e_exists[]	INIT(= N_("E13: File exists (add ! to override)"));
  EXTERN char_u e_failed[]	INIT(= N_("E472: Command failed"));
  #if defined(FEAT_GUI) && defined(FEAT_XFONTSET)
  EXTERN char_u e_fontset[]	INIT(= N_("E234: Unknown fontset: %s"));
  #endif
  #if defined(FEAT_GUI_X11) || defined(FEAT_GUI_GTK) || defined(MACOS) \
  	|| defined(FEAT_GUI_PHOTON) || defined(FEAT_GUI_MSWIN)
  EXTERN char_u e_font[]		INIT(= N_("E235: Unknown font: %s"));
  #endif
  #if defined(FEAT_GUI_X11) && !defined(FEAT_GUI_GTK)
  EXTERN char_u e_fontwidth[]	INIT(= N_("E236: Font \"%s\" is not fixed-width"));
  #endif
  EXTERN char_u e_internal[]	INIT(= N_("E473: Internal error"));
  EXTERN char_u e_interr[]	INIT(= N_("Interrupted"));
  EXTERN char_u e_invaddr[]	INIT(= N_("E14: Invalid address"));
  EXTERN char_u e_invarg[]	INIT(= N_("E474: Invalid argument"));
  EXTERN char_u e_invarg2[]	INIT(= N_("E475: Invalid argument: %s"));
  #ifdef FEAT_EVAL
  EXTERN char_u e_invexpr2[]	INIT(= N_("E15: Invalid expression: %s"));
  #endif
  EXTERN char_u e_invrange[]	INIT(= N_("E16: Invalid range"));
  EXTERN char_u e_invcmd[]	INIT(= N_("E476: Invalid command"));
  #if defined(UNIX) || defined(FEAT_SYN_HL) || defined(FEAT_SPELL)
  EXTERN char_u e_isadir2[]	INIT(= N_("E17: \"%s\" is a directory"));
  #endif
  #ifdef FEAT_LIBCALL
  EXTERN char_u e_libcall[]	INIT(= N_("E364: Library call failed for \"%s()\""));
  #endif
  #if defined(DYNAMIC_PERL) \
  	|| defined(DYNAMIC_PYTHON) || defined(DYNAMIC_PYTHON3) \
  	|| defined(DYNAMIC_RUBY) \
  	|| defined(DYNAMIC_TCL) \
  	|| defined(DYNAMIC_ICONV) \
  	|| defined(DYNAMIC_GETTEXT) \
  	|| defined(DYNAMIC_MZSCHEME) \
  	|| defined(DYNAMIC_LUA)
  EXTERN char_u e_loadlib[]	INIT(= N_("E370: Could not load library %s"));
  EXTERN char_u e_loadfunc[]	INIT(= N_("E448: Could not load library function %s"));
  #endif
  EXTERN char_u e_markinval[]	INIT(= N_("E19: Mark has invalid line number"));
  EXTERN char_u e_marknotset[]	INIT(= N_("E20: Mark not set"));
  EXTERN char_u e_modifiable[]	INIT(= N_("E21: Cannot make changes, 'modifiable' is off"));
  EXTERN char_u e_nesting[]	INIT(= N_("E22: Scripts nested too deep"));
  EXTERN char_u e_noalt[]		INIT(= N_("E23: No alternate file"));
  EXTERN char_u e_noabbr[]	INIT(= N_("E24: No such abbreviation"));
  EXTERN char_u e_nobang[]	INIT(= N_("E477: No ! allowed"));
  #ifndef FEAT_GUI
  EXTERN char_u e_nogvim[]	INIT(= N_("E25: GUI cannot be used: Not enabled at compile time"));
  #endif
  #ifndef FEAT_RIGHTLEFT
  EXTERN char_u e_nohebrew[]	INIT(= N_("E26: Hebrew cannot be used: Not enabled at compile time\n"));
  #endif
  #ifndef FEAT_FKMAP
  EXTERN char_u e_nofarsi[]	INIT(= N_("E27: Farsi cannot be used: Not enabled at compile time\n"));
  #endif
  #ifndef FEAT_ARABIC
  EXTERN char_u e_noarabic[]	INIT(= N_("E800: Arabic cannot be used: Not enabled at compile time\n"));
  #endif
  #if defined(FEAT_SEARCH_EXTRA) || defined(FEAT_SYN_HL)
  EXTERN char_u e_nogroup[]	INIT(= N_("E28: No such highlight group name: %s"));
  #endif
  EXTERN char_u e_noinstext[]	INIT(= N_("E29: No inserted text yet"));
  EXTERN char_u e_nolastcmd[]	INIT(= N_("E30: No previous command line"));
  EXTERN char_u e_nomap[]		INIT(= N_("E31: No such mapping"));
  EXTERN char_u e_nomatch[]	INIT(= N_("E479: No match"));
  EXTERN char_u e_nomatch2[]	INIT(= N_("E480: No match: %s"));
  EXTERN char_u e_noname[]	INIT(= N_("E32: No file name"));
  EXTERN char_u e_nopresub[]	INIT(= N_("E33: No previous substitute regular expression"));
  EXTERN char_u e_noprev[]	INIT(= N_("E34: No previous command"));
  EXTERN char_u e_noprevre[]	INIT(= N_("E35: No previous regular expression"));
  EXTERN char_u e_norange[]	INIT(= N_("E481: No range allowed"));
  #ifdef FEAT_WINDOWS
  EXTERN char_u e_noroom[]	INIT(= N_("E36: Not enough room"));
  #endif
  #ifdef FEAT_CLIENTSERVER
  EXTERN char_u e_noserver[]	INIT(= N_("E247: no registered server named \"%s\""));
  #endif
  EXTERN char_u e_notcreate[]	INIT(= N_("E482: Can't create file %s"));
  EXTERN char_u e_notmp[]		INIT(= N_("E483: Can't get temp file name"));
  EXTERN char_u e_notopen[]	INIT(= N_("E484: Can't open file %s"));
  EXTERN char_u e_notread[]	INIT(= N_("E485: Can't read file %s"));
  EXTERN char_u e_nowrtmsg[]	INIT(= N_("E37: No write since last change (add ! to override)"));
  EXTERN char_u e_nowrtmsg_nobang[]   INIT(= N_("E37: No write since last change"));
  EXTERN char_u e_null[]		INIT(= N_("E38: Null argument"));
  #ifdef FEAT_DIGRAPHS
  EXTERN char_u e_number_exp[]	INIT(= N_("E39: Number expected"));
  #endif
  #ifdef FEAT_QUICKFIX
  EXTERN char_u e_openerrf[]	INIT(= N_("E40: Can't open errorfile %s"));
  #endif
  #if defined(FEAT_GUI_GTK) || defined(FEAT_GUI_X11)
  EXTERN char_u e_opendisp[]	INIT(= N_("E233: cannot open display"));
  #endif
  EXTERN char_u e_outofmem[]	INIT(= N_("E41: Out of memory!"));
  #ifdef FEAT_INS_EXPAND
  EXTERN char_u e_patnotf[]	INIT(= N_("Pattern not found"));
  #endif
  EXTERN char_u e_patnotf2[]	INIT(= N_("E486: Pattern not found: %s"));
  EXTERN char_u e_positive[]	INIT(= N_("E487: Argument must be positive"));
  #if defined(UNIX) || defined(FEAT_SESSION)
  EXTERN char_u e_prev_dir[]	INIT(= N_("E459: Cannot go back to previous directory"));
  #endif
  
  #ifdef FEAT_QUICKFIX
  EXTERN char_u e_quickfix[]	INIT(= N_("E42: No Errors"));
  EXTERN char_u e_loclist[]	INIT(= N_("E776: No location list"));
  #endif
  EXTERN char_u e_re_damg[]	INIT(= N_("E43: Damaged match string"));
  EXTERN char_u e_re_corr[]	INIT(= N_("E44: Corrupted regexp program"));
  EXTERN char_u e_readonly[]	INIT(= N_("E45: 'readonly' option is set (add ! to override)"));
  #ifdef FEAT_EVAL
  EXTERN char_u e_readonlyvar[]	INIT(= N_("E46: Cannot change read-only variable \"%s\""));
  EXTERN char_u e_readonlysbx[]	INIT(= N_("E794: Cannot set variable in the sandbox: \"%s\""));
  #endif
  #ifdef FEAT_QUICKFIX
  EXTERN char_u e_readerrf[]	INIT(= N_("E47: Error while reading errorfile"));
  #endif
  #ifdef HAVE_SANDBOX
  EXTERN char_u e_sandbox[]	INIT(= N_("E48: Not allowed in sandbox"));
  #endif
  EXTERN char_u e_secure[]	INIT(= N_("E523: Not allowed here"));
  #if defined(AMIGA) || defined(MACOS) || defined(MSWIN)  \
  	|| defined(UNIX) || defined(VMS) || defined(OS2)
  EXTERN char_u e_screenmode[]	INIT(= N_("E359: Screen mode setting not supported"));
  #endif
  EXTERN char_u e_scroll[]	INIT(= N_("E49: Invalid scroll size"));
  EXTERN char_u e_shellempty[]	INIT(= N_("E91: 'shell' option is empty"));
  #if defined(FEAT_SIGN_ICONS) && !defined(FEAT_GUI_GTK)
  EXTERN char_u e_signdata[]	INIT(= N_("E255: Couldn't read in sign data!"));
  #endif
  EXTERN char_u e_swapclose[]	INIT(= N_("E72: Close error on swap file"));
  EXTERN char_u e_tagstack[]	INIT(= N_("E73: tag stack empty"));
  EXTERN char_u e_toocompl[]	INIT(= N_("E74: Command too complex"));
  EXTERN char_u e_longname[]	INIT(= N_("E75: Name too long"));
  EXTERN char_u e_toomsbra[]	INIT(= N_("E76: Too many ["));
  EXTERN char_u e_toomany[]	INIT(= N_("E77: Too many file names"));
  EXTERN char_u e_trailing[]	INIT(= N_("E488: Trailing characters"));
  EXTERN char_u e_umark[]		INIT(= N_("E78: Unknown mark"));
  EXTERN char_u e_wildexpand[]	INIT(= N_("E79: Cannot expand wildcards"));
  #ifdef FEAT_WINDOWS
  EXTERN char_u e_winheight[]	INIT(= N_("E591: 'winheight' cannot be smaller than 'winminheight'"));
  # ifdef FEAT_VERTSPLIT
  EXTERN char_u e_winwidth[]	INIT(= N_("E592: 'winwidth' cannot be smaller than 'winminwidth'"));
  # endif
  #endif
  EXTERN char_u e_write[]		INIT(= N_("E80: Error while writing"));
  EXTERN char_u e_zerocount[]	INIT(= N_("Zero count"));
  #ifdef FEAT_EVAL
  EXTERN char_u e_usingsid[]	INIT(= N_("E81: Using <SID> not in a script context"));
  #endif
  #ifdef FEAT_CLIENTSERVER
  EXTERN char_u e_invexprmsg[]	INIT(= N_("E449: Invalid expression received"));
  #endif
  #ifdef FEAT_NETBEANS_INTG
  EXTERN char_u e_guarded[]	INIT(= N_("E463: Region is guarded, cannot modify"));
  EXTERN char_u e_nbreadonly[]	INIT(= N_("E744: NetBeans does not allow changes in read-only files"));
  #endif
  EXTERN char_u e_intern2[]	INIT(= N_("E685: Internal error: %s"));
  EXTERN char_u e_maxmempat[]	INIT(= N_("E363: pattern uses more memory than 'maxmempattern'"));
  EXTERN char_u e_emptybuf[]	INIT(= N_("E749: empty buffer"));
  
  #ifdef FEAT_EX_EXTRA
  EXTERN char_u e_invalpat[]	INIT(= N_("E682: Invalid search pattern or delimiter"));
  #endif
  EXTERN char_u e_bufloaded[]	INIT(= N_("E139: File is loaded in another buffer"));
  #if defined(FEAT_SYN_HL) || \
  	(defined(FEAT_INS_EXPAND) && defined(FEAT_COMPL_FUNC))
  EXTERN char_u e_notset[]	INIT(= N_("E764: Option '%s' is not set"));
  #endif
  #ifndef FEAT_CLIPBOARD
  EXTERN char_u e_invalidreg[]    INIT(= N_("E850: Invalid register name"));
  #endif
  
  #ifdef MACOS_X_UNIX
  EXTERN short disallow_gui	INIT(= FALSE);
  #endif
  
  EXTERN char top_bot_msg[] INIT(= N_("search hit TOP, continuing at BOTTOM"));
  EXTERN char bot_top_msg[] INIT(= N_("search hit BOTTOM, continuing at TOP"));
  
  #ifdef FEAT_CRYPT
  EXTERN char need_key_msg[] INIT(= N_("Need encryption key for \"%s\""));
  #endif
  
  /*
   * Comms. with the session manager (XSMP)
   */
  #ifdef USE_XSMP
  EXTERN int xsmp_icefd INIT(= -1);   /* The actual connection */
  #endif
  
  /* For undo we need to know the lowest time possible. */
  EXTERN time_t starttime;
  
  #ifdef STARTUPTIME
  EXTERN FILE *time_fd INIT(= NULL);  /* where to write startup timing */
  #endif
  
  /*
   * Some compilers warn for not using a return value, but in some situations we
   * can't do anything useful with the value.  Assign to this variable to avoid
   * the warning.
   */
  EXTERN int ignored;
  EXTERN char *ignoredp;
  
  /*
   * Optional Farsi support.  Include it here, so EXTERN and INIT are defined.
   */
  #ifdef FEAT_FKMAP
  # include "farsi.h"
  #endif
  
  /*
   * Optional Arabic support. Include it here, so EXTERN and INIT are defined.
   */
  #ifdef FEAT_ARABIC
  # include "arabic.h"
  #endif
  