Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

1 files changed, 0 insertions, 8444 deletions

diff --git a/src/edit.c b/src/edit.c
deleted file mode 100644
index 146a8bba70..0000000000
--- a/src/edit.c
+++ /dev/null
@@ -1,8444 +0,0 @@
-/*
- * 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.
- */
-
-/*
- * edit.c: functions for Insert mode
- */
-
-#include <string.h>
-
-#include "vim.h"
-#include "edit.h"
-#include "buffer.h"
-#include "charset.h"
-#include "digraph.h"
-#include "eval.h"
-#include "ex_docmd.h"
-#include "ex_getln.h"
-#include "farsi.h"
-#include "fileio.h"
-#include "fold.h"
-#include "getchar.h"
-#include "indent.h"
-#include "indent_c.h"
-#include "main.h"
-#include "mbyte.h"
-#include "memline.h"
-#include "memory.h"
-#include "message.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "keymap.h"
-#include "move.h"
-#include "normal.h"
-#include "ops.h"
-#include "option.h"
-#include "path.h"
-#include "popupmnu.h"
-#include "quickfix.h"
-#include "regexp.h"
-#include "screen.h"
-#include "search.h"
-#include "spell.h"
-#include "syntax.h"
-#include "tag.h"
-#include "term.h"
-#include "ui.h"
-#include "undo.h"
-#include "window.h"
-#include "os/event.h"
-
-/*
- * definitions used for CTRL-X submode
- */
-#define CTRL_X_WANT_IDENT       0x100
-
-#define CTRL_X_NOT_DEFINED_YET  1
-#define CTRL_X_SCROLL           2
-#define CTRL_X_WHOLE_LINE       3
-#define CTRL_X_FILES            4
-#define CTRL_X_TAGS             (5 + CTRL_X_WANT_IDENT)
-#define CTRL_X_PATH_PATTERNS    (6 + CTRL_X_WANT_IDENT)
-#define CTRL_X_PATH_DEFINES     (7 + CTRL_X_WANT_IDENT)
-#define CTRL_X_FINISHED         8
-#define CTRL_X_DICTIONARY       (9 + CTRL_X_WANT_IDENT)
-#define CTRL_X_THESAURUS        (10 + CTRL_X_WANT_IDENT)
-#define CTRL_X_CMDLINE          11
-#define CTRL_X_FUNCTION         12
-#define CTRL_X_OMNI             13
-#define CTRL_X_SPELL            14
-#define CTRL_X_LOCAL_MSG        15      /* only used in "ctrl_x_msgs" */
-
-#define CTRL_X_MSG(i) ctrl_x_msgs[(i) & ~CTRL_X_WANT_IDENT]
-
-static char *ctrl_x_msgs[] =
-{
-  N_(" Keyword completion (^N^P)"),   /* ctrl_x_mode == 0, ^P/^N compl. */
-  N_(" ^X mode (^]^D^E^F^I^K^L^N^O^Ps^U^V^Y)"),
-  NULL,
-  N_(" Whole line completion (^L^N^P)"),
-  N_(" File name completion (^F^N^P)"),
-  N_(" Tag completion (^]^N^P)"),
-  N_(" Path pattern completion (^N^P)"),
-  N_(" Definition completion (^D^N^P)"),
-  NULL,
-  N_(" Dictionary completion (^K^N^P)"),
-  N_(" Thesaurus completion (^T^N^P)"),
-  N_(" Command-line completion (^V^N^P)"),
-  N_(" User defined completion (^U^N^P)"),
-  N_(" Omni completion (^O^N^P)"),
-  N_(" Spelling suggestion (s^N^P)"),
-  N_(" Keyword Local completion (^N^P)"),
-};
-
-static char e_hitend[] = N_("Hit end of paragraph");
-static char e_complwin[] = N_("E839: Completion function changed window");
-static char e_compldel[] = N_("E840: Completion function deleted text");
-
-/*
- * Structure used to store one match for insert completion.
- */
-typedef struct compl_S compl_T;
-struct compl_S {
-  compl_T     *cp_next;
-  compl_T     *cp_prev;
-  char_u      *cp_str;          /* matched text */
-  char cp_icase;                /* TRUE or FALSE: ignore case */
-  char_u      *(cp_text[CPT_COUNT]);    /* text for the menu */
-  char_u      *cp_fname;        /* file containing the match, allocated when
-                                 * cp_flags has FREE_FNAME */
-  int cp_flags;                 /* ORIGINAL_TEXT, CONT_S_IPOS or FREE_FNAME */
-  int cp_number;                /* sequence number */
-};
-
-#define ORIGINAL_TEXT   (1)   /* the original text when the expansion begun */
-#define FREE_FNAME      (2)
-
-/*
- * All the current matches are stored in a list.
- * "compl_first_match" points to the start of the list.
- * "compl_curr_match" points to the currently selected entry.
- * "compl_shown_match" is different from compl_curr_match during
- * ins_compl_get_exp().
- */
-static compl_T    *compl_first_match = NULL;
-static compl_T    *compl_curr_match = NULL;
-static compl_T    *compl_shown_match = NULL;
-
-/* After using a cursor key <Enter> selects a match in the popup menu,
- * otherwise it inserts a line break. */
-static int compl_enter_selects = FALSE;
-
-/* When "compl_leader" is not NULL only matches that start with this string
- * are used. */
-static char_u     *compl_leader = NULL;
-
-static int compl_get_longest = FALSE;           /* put longest common string
-                                                   in compl_leader */
-
-static int compl_used_match;            /* Selected one of the matches.  When
-                                           FALSE the match was edited or using
-                                           the longest common string. */
-
-static int compl_was_interrupted = FALSE;         /* didn't finish finding
-                                                     completions. */
-
-static int compl_restarting = FALSE;            /* don't insert match */
-
-/* When the first completion is done "compl_started" is set.  When it's
- * FALSE the word to be completed must be located. */
-static int compl_started = FALSE;
-
-/* Set when doing something for completion that may call edit() recursively,
- * which is not allowed. */
-static int compl_busy = FALSE;
-
-static int compl_matches = 0;
-static char_u     *compl_pattern = NULL;
-static int compl_direction = FORWARD;
-static int compl_shows_dir = FORWARD;
-static int compl_pending = 0;               /* > 1 for postponed CTRL-N */
-static pos_T compl_startpos;
-static colnr_T compl_col = 0;               /* column where the text starts
-                                             * that is being completed */
-static char_u     *compl_orig_text = NULL;  /* text as it was before
-                                             * completion started */
-static int compl_cont_mode = 0;
-static expand_T compl_xp;
-
-static int compl_opt_refresh_always = FALSE;
-
-static void ins_ctrl_x(void);
-static int has_compl_option(int dict_opt);
-static int ins_compl_accept_char(int c);
-static int ins_compl_add(char_u *str, int len, int icase, char_u *fname,
-                         char_u **cptext, int cdir, int flags,
-                         int adup);
-static int ins_compl_equal(compl_T *match, char_u *str, int len);
-static void ins_compl_longest_match(compl_T *match);
-static void ins_compl_add_matches(int num_matches, char_u **matches,
-                                  int icase);
-static int ins_compl_make_cyclic(void);
-static void ins_compl_upd_pum(void);
-static void ins_compl_del_pum(void);
-static int pum_wanted(void);
-static int pum_enough_matches(void);
-static void ins_compl_dictionaries(char_u *dict, char_u *pat, int flags,
-                                   int thesaurus);
-static void ins_compl_files(int count, char_u **files, int thesaurus,
-                            int flags, regmatch_T *regmatch, char_u *
-                            buf,
-                            int *dir);
-static char_u *find_line_end(char_u *ptr);
-static void ins_compl_free(void);
-static void ins_compl_clear(void);
-static int ins_compl_bs(void);
-static int ins_compl_need_restart(void);
-static void ins_compl_new_leader(void);
-static void ins_compl_addleader(int c);
-static int ins_compl_len(void);
-static void ins_compl_restart(void);
-static void ins_compl_set_original_text(char_u *str);
-static void ins_compl_addfrommatch(void);
-static int ins_compl_prep(int c);
-static void ins_compl_fixRedoBufForLeader(char_u *ptr_arg);
-static buf_T *ins_compl_next_buf(buf_T *buf, int flag);
-static void ins_compl_add_list(list_T *list);
-static void ins_compl_add_dict(dict_T *dict);
-static int ins_compl_get_exp(pos_T *ini);
-static void ins_compl_delete(void);
-static void ins_compl_insert(void);
-static int ins_compl_next(int allow_get_expansion, int count,
-                          int insert_match);
-static int ins_compl_key2dir(int c);
-static int ins_compl_pum_key(int c);
-static int ins_compl_key2count(int c);
-static int ins_compl_use_match(int c);
-static int ins_complete(int c);
-static unsigned quote_meta(char_u *dest, char_u *str, int len);
-
-#define BACKSPACE_CHAR              1
-#define BACKSPACE_WORD              2
-#define BACKSPACE_WORD_NOT_SPACE    3
-#define BACKSPACE_LINE              4
-
-static void ins_redraw(int ready);
-static void ins_ctrl_v(void);
-static void undisplay_dollar(void);
-static void insert_special(int, int, int);
-static void internal_format(int textwidth, int second_indent, int flags,
-                            int format_only,
-                            int c);
-static void check_auto_format(int);
-static void redo_literal(int c);
-static void start_arrow(pos_T *end_insert_pos);
-static void check_spell_redraw(void);
-static void spell_back_to_badword(void);
-static int spell_bad_len = 0;   /* length of located bad word */
-static void stop_insert(pos_T *end_insert_pos, int esc, int nomove);
-static int echeck_abbr(int);
-static int replace_pop(void);
-static void replace_join(int off);
-static void replace_pop_ins(void);
-static void mb_replace_pop_ins(int cc);
-static void replace_flush(void);
-static void replace_do_bs(int limit_col);
-static int del_char_after_col(int limit_col);
-static int cindent_on(void);
-static void ins_reg(void);
-static void ins_ctrl_g(void);
-static void ins_ctrl_hat(void);
-static int ins_esc(long *count, int cmdchar, int nomove);
-static void ins_ctrl_(void);
-static int ins_start_select(int c);
-static void ins_insert(int replaceState);
-static void ins_ctrl_o(void);
-static void ins_shift(int c, int lastc);
-static void ins_del(void);
-static int ins_bs(int c, int mode, int *inserted_space_p);
-static void ins_mouse(int c);
-static void ins_mousescroll(int dir);
-static void ins_left(void);
-static void ins_home(int c);
-static void ins_end(int c);
-static void ins_s_left(void);
-static void ins_right(void);
-static void ins_s_right(void);
-static void ins_up(int startcol);
-static void ins_pageup(void);
-static void ins_down(int startcol);
-static void ins_pagedown(void);
-static int ins_tab(void);
-static int ins_eol(int c);
-static int ins_digraph(void);
-static int ins_ctrl_ey(int tc);
-static void ins_try_si(int c);
-static colnr_T get_nolist_virtcol(void);
-static char_u *do_insert_char_pre(int c);
-
-static colnr_T Insstart_textlen;        /* length of line when insert started */
-static colnr_T Insstart_blank_vcol;     /* vcol for first inserted blank */
-static bool update_Insstart_orig = true; /* set Insstart_orig to Insstart */
-
-static char_u   *last_insert = NULL;    /* the text of the previous insert,
-                                           K_SPECIAL and CSI are escaped */
-static int last_insert_skip;      /* nr of chars in front of previous insert */
-static int new_insert_skip;       /* nr of chars in front of current insert */
-static int did_restart_edit;            /* "restart_edit" when calling edit() */
-
-static int can_cindent;                 /* may do cindenting on this line */
-
-static int old_indent = 0;              /* for ^^D command in insert mode */
-
-static int revins_on;                   /* reverse insert mode on */
-static int revins_chars;                /* how much to skip after edit */
-static int revins_legal;                /* was the last char 'legal'? */
-static int revins_scol;                 /* start column of revins session */
-
-static int ins_need_undo;               /* call u_save() before inserting a
-                                           char.  Set when edit() is called.
-                                           after that arrow_used is used. */
-
-static int did_add_space = FALSE;       /* auto_format() added an extra space
-                                           under the cursor */
-
-/*
- * edit(): Start inserting text.
- *
- * "cmdchar" can be:
- * 'i'	normal insert command
- * 'a'	normal append command
- * 'R'	replace command
- * 'r'	"r<CR>" command: insert one <CR>.  Note: count can be > 1, for redo,
- *	but still only one <CR> is inserted.  The <Esc> is not used for redo.
- * 'g'	"gI" command.
- * 'V'	"gR" command for Virtual Replace mode.
- * 'v'	"gr" command for single character Virtual Replace mode.
- *
- * This function is not called recursively.  For CTRL-O commands, it returns
- * and lets the caller handle the Normal-mode command.
- *
- * Return TRUE if a CTRL-O command caused the return (insert mode pending).
- */
-int 
-edit (
-    int cmdchar,
-    int startln,                    /* if set, insert at start of line */
-    long count
-)
-{
-  int c = 0;
-  char_u      *ptr;
-  int lastc;
-  int mincol;
-  static linenr_T o_lnum = 0;
-  int i;
-  int did_backspace = TRUE;                 /* previous char was backspace */
-  int line_is_white = FALSE;                /* line is empty before insert */
-  linenr_T old_topline = 0;                 /* topline before insertion */
-  int old_topfill = -1;
-  int inserted_space = FALSE;               /* just inserted a space */
-  int replaceState = REPLACE;
-  int nomove = FALSE;                       /* don't move cursor on return */
-
-  /* Remember whether editing was restarted after CTRL-O. */
-  did_restart_edit = restart_edit;
-
-  /* sleep before redrawing, needed for "CTRL-O :" that results in an
-   * error message */
-  check_for_delay(TRUE);
-
-  // set Insstart_orig to Insstart
-  update_Insstart_orig = true;
-
-#ifdef HAVE_SANDBOX
-  /* Don't allow inserting in the sandbox. */
-  if (sandbox != 0) {
-    EMSG(_(e_sandbox));
-    return FALSE;
-  }
-#endif
-  /* Don't allow changes in the buffer while editing the cmdline.  The
-   * caller of getcmdline() may get confused. */
-  if (textlock != 0) {
-    EMSG(_(e_secure));
-    return FALSE;
-  }
-
-  /* Don't allow recursive insert mode when busy with completion. */
-  if (compl_started || compl_busy || pum_visible()) {
-    EMSG(_(e_secure));
-    return FALSE;
-  }
-  ins_compl_clear();        /* clear stuff for CTRL-X mode */
-
-  /*
-   * Trigger InsertEnter autocommands.  Do not do this for "r<CR>" or "grx".
-   */
-  if (cmdchar != 'r' && cmdchar != 'v') {
-    pos_T save_cursor = curwin->w_cursor;
-
-    if (cmdchar == 'R')
-      ptr = (char_u *)"r";
-    else if (cmdchar == 'V')
-      ptr = (char_u *)"v";
-    else
-      ptr = (char_u *)"i";
-    set_vim_var_string(VV_INSERTMODE, ptr, 1);
-    set_vim_var_string(VV_CHAR, NULL, -1);      /* clear v:char */
-    apply_autocmds(EVENT_INSERTENTER, NULL, NULL, FALSE, curbuf);
-
-    /* Make sure the cursor didn't move.  Do call check_cursor_col() in
-     * case the text was modified.  Since Insert mode was not started yet
-     * a call to check_cursor_col() may move the cursor, especially with
-     * the "A" command, thus set State to avoid that. Also check that the
-     * line number is still valid (lines may have been deleted).
-     * Do not restore if v:char was set to a non-empty string. */
-    if (!equalpos(curwin->w_cursor, save_cursor)
-        && *get_vim_var_str(VV_CHAR) == NUL
-        && save_cursor.lnum <= curbuf->b_ml.ml_line_count) {
-      int save_state = State;
-
-      curwin->w_cursor = save_cursor;
-      State = INSERT;
-      check_cursor_col();
-      State = save_state;
-    }
-  }
-
-  /* Check if the cursor line needs redrawing before changing State.  If
-  * 'concealcursor' is "n" it needs to be redrawn without concealing. */
-  conceal_check_cursur_line();
-
-  /*
-   * When doing a paste with the middle mouse button, Insstart is set to
-   * where the paste started.
-   */
-  if (where_paste_started.lnum != 0)
-    Insstart = where_paste_started;
-  else {
-    Insstart = curwin->w_cursor;
-    if (startln)
-      Insstart.col = 0;
-  }
-  Insstart_textlen = (colnr_T)linetabsize(ml_get_curline());
-  Insstart_blank_vcol = MAXCOL;
-  if (!did_ai)
-    ai_col = 0;
-
-  if (cmdchar != NUL && restart_edit == 0) {
-    ResetRedobuff();
-    AppendNumberToRedobuff(count);
-    if (cmdchar == 'V' || cmdchar == 'v') {
-      /* "gR" or "gr" command */
-      AppendCharToRedobuff('g');
-      AppendCharToRedobuff((cmdchar == 'v') ? 'r' : 'R');
-    } else {
-      AppendCharToRedobuff(cmdchar);
-      if (cmdchar == 'g')                   /* "gI" command */
-        AppendCharToRedobuff('I');
-      else if (cmdchar == 'r')              /* "r<CR>" command */
-        count = 1;                          /* insert only one <CR> */
-    }
-  }
-
-  if (cmdchar == 'R') {
-    if (p_fkmap && p_ri) {
-      beep_flush();
-      EMSG(farsi_text_3);           /* encoded in Farsi */
-      State = INSERT;
-    } else
-      State = REPLACE;
-  } else if (cmdchar == 'V' || cmdchar == 'v') {
-    State = VREPLACE;
-    replaceState = VREPLACE;
-    orig_line_count = curbuf->b_ml.ml_line_count;
-    vr_lines_changed = 1;
-  } else
-    State = INSERT;
-
-  stop_insert_mode = FALSE;
-
-  /*
-   * Need to recompute the cursor position, it might move when the cursor is
-   * on a TAB or special character.
-   */
-  curs_columns(TRUE);
-
-  /*
-   * Enable langmap or IME, indicated by 'iminsert'.
-   * Note that IME may enabled/disabled without us noticing here, thus the
-   * 'iminsert' value may not reflect what is actually used.  It is updated
-   * when hitting <Esc>.
-   */
-  if (curbuf->b_p_iminsert == B_IMODE_LMAP)
-    State |= LANGMAP;
-#ifdef USE_IM_CONTROL
-  im_set_active(curbuf->b_p_iminsert == B_IMODE_IM);
-#endif
-
-  setmouse();
-  clear_showcmd();
-  /* there is no reverse replace mode */
-  revins_on = (State == INSERT && p_ri);
-  if (revins_on)
-    undisplay_dollar();
-  revins_chars = 0;
-  revins_legal = 0;
-  revins_scol = -1;
-
-  /*
-   * Handle restarting Insert mode.
-   * Don't do this for "CTRL-O ." (repeat an insert): we get here with
-   * restart_edit non-zero, and something in the stuff buffer.
-   */
-  if (restart_edit != 0 && stuff_empty()) {
-    /*
-     * After a paste we consider text typed to be part of the insert for
-     * the pasted text. You can backspace over the pasted text too.
-     */
-    if (where_paste_started.lnum)
-      arrow_used = FALSE;
-    else
-      arrow_used = TRUE;
-    restart_edit = 0;
-
-    /*
-     * If the cursor was after the end-of-line before the CTRL-O and it is
-     * now at the end-of-line, put it after the end-of-line (this is not
-     * correct in very rare cases).
-     * Also do this if curswant is greater than the current virtual
-     * column.  Eg after "^O$" or "^O80|".
-     */
-    validate_virtcol();
-    update_curswant();
-    if (((ins_at_eol && curwin->w_cursor.lnum == o_lnum)
-         || curwin->w_curswant > curwin->w_virtcol)
-        && *(ptr = ml_get_curline() + curwin->w_cursor.col) != NUL) {
-      if (ptr[1] == NUL)
-        ++curwin->w_cursor.col;
-      else if (has_mbyte) {
-        i = (*mb_ptr2len)(ptr);
-        if (ptr[i] == NUL)
-          curwin->w_cursor.col += i;
-      }
-    }
-    ins_at_eol = FALSE;
-  } else
-    arrow_used = FALSE;
-
-  /* we are in insert mode now, don't need to start it anymore */
-  need_start_insertmode = FALSE;
-
-  /* Need to save the line for undo before inserting the first char. */
-  ins_need_undo = TRUE;
-
-  where_paste_started.lnum = 0;
-  can_cindent = TRUE;
-  /* The cursor line is not in a closed fold, unless 'insertmode' is set or
-   * restarting. */
-  if (!p_im && did_restart_edit == 0)
-    foldOpenCursor();
-
-  /*
-   * If 'showmode' is set, show the current (insert/replace/..) mode.
-   * A warning message for changing a readonly file is given here, before
-   * actually changing anything.  It's put after the mode, if any.
-   */
-  i = 0;
-  if (p_smd && msg_silent == 0)
-    i = showmode();
-
-  if (!p_im && did_restart_edit == 0)
-    change_warning(i == 0 ? 0 : i + 1);
-
-  ui_cursor_shape();            /* may show different cursor shape */
-  do_digraph(-1);               /* clear digraphs */
-
-  /*
-   * Get the current length of the redo buffer, those characters have to be
-   * skipped if we want to get to the inserted characters.
-   */
-  ptr = get_inserted();
-  if (ptr == NULL)
-    new_insert_skip = 0;
-  else {
-    new_insert_skip = (int)STRLEN(ptr);
-    free(ptr);
-  }
-
-  old_indent = 0;
-
-  /*
-   * Main loop in Insert mode: repeat until Insert mode is left.
-   */
-  for (;; ) {
-    if (!revins_legal)
-      revins_scol = -1;             /* reset on illegal motions */
-    else
-      revins_legal = 0;
-    if (arrow_used)         /* don't repeat insert when arrow key used */
-      count = 0;
-
-    if (update_Insstart_orig) {
-      Insstart_orig = Insstart;
-    }
-
-    if (stop_insert_mode) {
-      /* ":stopinsert" used or 'insertmode' reset */
-      count = 0;
-      goto doESCkey;
-    }
-
-    /* set curwin->w_curswant for next K_DOWN or K_UP */
-    if (!arrow_used)
-      curwin->w_set_curswant = TRUE;
-
-    /* If there is no typeahead may check for timestamps (e.g., for when a
-     * menu invoked a shell command). */
-    if (stuff_empty()) {
-      did_check_timestamps = FALSE;
-      if (need_check_timestamps)
-        check_timestamps(FALSE);
-    }
-
-    /*
-     * When emsg() was called msg_scroll will have been set.
-     */
-    msg_scroll = FALSE;
-
-
-    /* Open fold at the cursor line, according to 'foldopen'. */
-    if (fdo_flags & FDO_INSERT)
-      foldOpenCursor();
-    /* Close folds where the cursor isn't, according to 'foldclose' */
-    if (!char_avail())
-      foldCheckClose();
-
-    /*
-     * If we inserted a character at the last position of the last line in
-     * the window, scroll the window one line up. This avoids an extra
-     * redraw.
-     * This is detected when the cursor column is smaller after inserting
-     * something.
-     * Don't do this when the topline changed already, it has
-     * already been adjusted (by insertchar() calling open_line())).
-     */
-    if (curbuf->b_mod_set
-        && curwin->w_p_wrap
-        && !did_backspace
-        && curwin->w_topline == old_topline
-        && curwin->w_topfill == old_topfill
-        ) {
-      mincol = curwin->w_wcol;
-      validate_cursor_col();
-
-      if ((int)curwin->w_wcol < mincol - curbuf->b_p_ts
-          && curwin->w_wrow == W_WINROW(curwin)
-          + curwin->w_height - 1 - p_so
-          && (curwin->w_cursor.lnum != curwin->w_topline
-              || curwin->w_topfill > 0
-              )) {
-        if (curwin->w_topfill > 0)
-          --curwin->w_topfill;
-        else if (hasFolding(curwin->w_topline, NULL, &old_topline))
-          set_topline(curwin, old_topline + 1);
-        else
-          set_topline(curwin, curwin->w_topline + 1);
-      }
-    }
-
-    /* May need to adjust w_topline to show the cursor. */
-    update_topline();
-
-    did_backspace = FALSE;
-
-    validate_cursor();                  /* may set must_redraw */
-
-    /*
-     * Redraw the display when no characters are waiting.
-     * Also shows mode, ruler and positions cursor.
-     */
-    ins_redraw(TRUE);
-
-    if (curwin->w_p_scb)
-      do_check_scrollbind(TRUE);
-
-    if (curwin->w_p_crb)
-      do_check_cursorbind();
-    update_curswant();
-    old_topline = curwin->w_topline;
-    old_topfill = curwin->w_topfill;
-
-#ifdef USE_ON_FLY_SCROLL
-    dont_scroll = FALSE;                /* allow scrolling here */
-#endif
-
-    /*
-     * Get a character for Insert mode.  Ignore K_IGNORE.
-     */
-    lastc = c;                          /* remember previous char for CTRL-D */
-    do {
-      c = safe_vgetc();
-    } while (c == K_IGNORE);
-
-    /* Don't want K_CURSORHOLD for the second key, e.g., after CTRL-V. */
-    did_cursorhold = TRUE;
-
-    if (p_hkmap && KeyTyped)
-      c = hkmap(c);                     /* Hebrew mode mapping */
-    if (p_fkmap && KeyTyped)
-      c = fkmap(c);                     /* Farsi mode mapping */
-
-    /*
-     * Special handling of keys while the popup menu is visible or wanted
-     * and the cursor is still in the completed word.  Only when there is
-     * a match, skip this when no matches were found.
-     */
-    if (compl_started
-        && pum_wanted()
-        && curwin->w_cursor.col >= compl_col
-        && (compl_shown_match == NULL
-            || compl_shown_match != compl_shown_match->cp_next)) {
-      /* BS: Delete one character from "compl_leader". */
-      if ((c == K_BS || c == Ctrl_H)
-          && curwin->w_cursor.col > compl_col
-          && (c = ins_compl_bs()) == NUL)
-        continue;
-
-      /* When no match was selected or it was edited. */
-      if (!compl_used_match) {
-        /* CTRL-L: Add one character from the current match to
-         * "compl_leader".  Except when at the original match and
-         * there is nothing to add, CTRL-L works like CTRL-P then. */
-        if (c == Ctrl_L
-            && (ctrl_x_mode != CTRL_X_WHOLE_LINE
-                || (int)STRLEN(compl_shown_match->cp_str)
-                > curwin->w_cursor.col - compl_col)) {
-          ins_compl_addfrommatch();
-          continue;
-        }
-
-        /* A non-white character that fits in with the current
-         * completion: Add to "compl_leader". */
-        if (ins_compl_accept_char(c)) {
-          /* Trigger InsertCharPre. */
-          char_u *str = do_insert_char_pre(c);
-          char_u *p;
-
-          if (str != NULL) {
-            for (p = str; *p != NUL; mb_ptr_adv(p))
-              ins_compl_addleader(PTR2CHAR(p));
-            free(str);
-          } else
-            ins_compl_addleader(c);
-          continue;
-        }
-
-        /* Pressing CTRL-Y selects the current match.  When
-         * compl_enter_selects is set the Enter key does the same. */
-        if (c == Ctrl_Y || (compl_enter_selects
-                            && (c == CAR || c == K_KENTER || c == NL))) {
-          ins_compl_delete();
-          ins_compl_insert();
-        }
-      }
-    }
-
-    /* Prepare for or stop CTRL-X mode.  This doesn't do completion, but
-     * it does fix up the text when finishing completion. */
-    compl_get_longest = FALSE;
-    if (ins_compl_prep(c))
-      continue;
-
-    /* CTRL-\ CTRL-N goes to Normal mode,
-     * CTRL-\ CTRL-G goes to mode selected with 'insertmode',
-     * CTRL-\ CTRL-O is like CTRL-O but without moving the cursor.  */
-    if (c == Ctrl_BSL) {
-      /* may need to redraw when no more chars available now */
-      ins_redraw(FALSE);
-      ++no_mapping;
-      ++allow_keys;
-      c = plain_vgetc();
-      --no_mapping;
-      --allow_keys;
-      if (c != Ctrl_N && c != Ctrl_G && c != Ctrl_O) {
-        /* it's something else */
-        vungetc(c);
-        c = Ctrl_BSL;
-      } else if (c == Ctrl_G && p_im)
-        continue;
-      else {
-        if (c == Ctrl_O) {
-          ins_ctrl_o();
-          ins_at_eol = FALSE;           /* cursor keeps its column */
-          nomove = TRUE;
-        }
-        count = 0;
-        goto doESCkey;
-      }
-    }
-
-    c = do_digraph(c);
-
-    if ((c == Ctrl_V || c == Ctrl_Q) && ctrl_x_mode == CTRL_X_CMDLINE)
-      goto docomplete;
-    if (c == Ctrl_V || c == Ctrl_Q) {
-      ins_ctrl_v();
-      c = Ctrl_V;       /* pretend CTRL-V is last typed character */
-      continue;
-    }
-
-    if (cindent_on()
-        && ctrl_x_mode == 0
-        ) {
-      /* A key name preceded by a bang means this key is not to be
-       * inserted.  Skip ahead to the re-indenting below.
-       * A key name preceded by a star means that indenting has to be
-       * done before inserting the key. */
-      line_is_white = inindent(0);
-      if (in_cinkeys(c, '!', line_is_white))
-        goto force_cindent;
-      if (can_cindent && in_cinkeys(c, '*', line_is_white)
-          && stop_arrow() == OK)
-        do_c_expr_indent();
-    }
-
-    if (curwin->w_p_rl)
-      switch (c) {
-      case K_LEFT:    c = K_RIGHT; break;
-      case K_S_LEFT:  c = K_S_RIGHT; break;
-      case K_C_LEFT:  c = K_C_RIGHT; break;
-      case K_RIGHT:   c = K_LEFT; break;
-      case K_S_RIGHT: c = K_S_LEFT; break;
-      case K_C_RIGHT: c = K_C_LEFT; break;
-      }
-
-    /*
-     * If 'keymodel' contains "startsel", may start selection.  If it
-     * does, a CTRL-O and c will be stuffed, we need to get these
-     * characters.
-     */
-    if (ins_start_select(c))
-      continue;
-
-    /*
-     * The big switch to handle a character in insert mode.
-     */
-    switch (c) {
-    case ESC:           /* End input mode */
-      if (echeck_abbr(ESC + ABBR_OFF))
-        break;
-    /*FALLTHROUGH*/
-
-    case Ctrl_C:        /* End input mode */
-      if (c == Ctrl_C && cmdwin_type != 0) {
-        /* Close the cmdline window. */
-        cmdwin_result = K_IGNORE;
-        got_int = FALSE;         /* don't stop executing autocommands et al. */
-        nomove = TRUE;
-        goto doESCkey;
-      }
-
-#ifdef UNIX
-do_intr:
-#endif
-      /* when 'insertmode' set, and not halfway a mapping, don't leave
-       * Insert mode */
-      if (goto_im()) {
-        if (got_int) {
-          (void)vgetc();                        /* flush all buffers */
-          got_int = FALSE;
-        } else
-          vim_beep();
-        break;
-      }
-doESCkey:
-      /*
-       * This is the ONLY return from edit()!
-       */
-      /* Always update o_lnum, so that a "CTRL-O ." that adds a line
-       * still puts the cursor back after the inserted text. */
-      if (ins_at_eol && gchar_cursor() == NUL)
-        o_lnum = curwin->w_cursor.lnum;
-
-      if (ins_esc(&count, cmdchar, nomove)) {
-        if (cmdchar != 'r' && cmdchar != 'v')
-          apply_autocmds(EVENT_INSERTLEAVE, NULL, NULL,
-              FALSE, curbuf);
-        did_cursorhold = FALSE;
-        return c == Ctrl_O;
-      }
-      continue;
-
-    case Ctrl_Z:        /* suspend when 'insertmode' set */
-      if (!p_im)
-        goto normalchar;                /* insert CTRL-Z as normal char */
-      stuffReadbuff((char_u *)":st\r");
-      c = Ctrl_O;
-    /*FALLTHROUGH*/
-
-    case Ctrl_O:        /* execute one command */
-      if (ctrl_x_mode == CTRL_X_OMNI)
-        goto docomplete;
-      if (echeck_abbr(Ctrl_O + ABBR_OFF))
-        break;
-      ins_ctrl_o();
-
-      /* don't move the cursor left when 'virtualedit' has "onemore". */
-      if (ve_flags & VE_ONEMORE) {
-        ins_at_eol = FALSE;
-        nomove = TRUE;
-      }
-      count = 0;
-      goto doESCkey;
-
-    case K_INS:         /* toggle insert/replace mode */
-    case K_KINS:
-      ins_insert(replaceState);
-      break;
-
-    case K_SELECT:      /* end of Select mode mapping - ignore */
-      break;
-
-
-    case K_HELP:        /* Help key works like <ESC> <Help> */
-    case K_F1:
-    case K_XF1:
-      stuffcharReadbuff(K_HELP);
-      if (p_im)
-        need_start_insertmode = TRUE;
-      goto doESCkey;
-
-
-    case K_ZERO:        /* Insert the previously inserted text. */
-    case NUL:
-    case Ctrl_A:
-      /* For ^@ the trailing ESC will end the insert, unless there is an
-       * error.  */
-      if (stuff_inserted(NUL, 1L, (c == Ctrl_A)) == FAIL
-          && c != Ctrl_A && !p_im)
-        goto doESCkey;                  /* quit insert mode */
-      inserted_space = FALSE;
-      break;
-
-    case Ctrl_R:        /* insert the contents of a register */
-      ins_reg();
-      auto_format(FALSE, TRUE);
-      inserted_space = FALSE;
-      break;
-
-    case Ctrl_G:        /* commands starting with CTRL-G */
-      ins_ctrl_g();
-      break;
-
-    case Ctrl_HAT:      /* switch input mode and/or langmap */
-      ins_ctrl_hat();
-      break;
-
-    case Ctrl__:        /* switch between languages */
-      if (!p_ari)
-        goto normalchar;
-      ins_ctrl_();
-      break;
-
-    case Ctrl_D:        /* Make indent one shiftwidth smaller. */
-      if (ctrl_x_mode == CTRL_X_PATH_DEFINES)
-        goto docomplete;
-    /* FALLTHROUGH */
-
-    case Ctrl_T:        /* Make indent one shiftwidth greater. */
-      if (c == Ctrl_T && ctrl_x_mode == CTRL_X_THESAURUS) {
-        if (has_compl_option(FALSE))
-          goto docomplete;
-        break;
-      }
-      ins_shift(c, lastc);
-      auto_format(FALSE, TRUE);
-      inserted_space = FALSE;
-      break;
-
-    case K_DEL:         /* delete character under the cursor */
-    case K_KDEL:
-      ins_del();
-      auto_format(FALSE, TRUE);
-      break;
-
-    case K_BS:          /* delete character before the cursor */
-    case Ctrl_H:
-      did_backspace = ins_bs(c, BACKSPACE_CHAR, &inserted_space);
-      auto_format(FALSE, TRUE);
-      break;
-
-    case Ctrl_W:        /* delete word before the cursor */
-      did_backspace = ins_bs(c, BACKSPACE_WORD, &inserted_space);
-      auto_format(FALSE, TRUE);
-      break;
-
-    case Ctrl_U:        /* delete all inserted text in current line */
-      /* CTRL-X CTRL-U completes with 'completefunc'. */
-      if (ctrl_x_mode == CTRL_X_FUNCTION)
-        goto docomplete;
-      did_backspace = ins_bs(c, BACKSPACE_LINE, &inserted_space);
-      auto_format(FALSE, TRUE);
-      inserted_space = FALSE;
-      break;
-
-    case K_LEFTMOUSE:       /* mouse keys */
-    case K_LEFTMOUSE_NM:
-    case K_LEFTDRAG:
-    case K_LEFTRELEASE:
-    case K_LEFTRELEASE_NM:
-    case K_MIDDLEMOUSE:
-    case K_MIDDLEDRAG:
-    case K_MIDDLERELEASE:
-    case K_RIGHTMOUSE:
-    case K_RIGHTDRAG:
-    case K_RIGHTRELEASE:
-    case K_X1MOUSE:
-    case K_X1DRAG:
-    case K_X1RELEASE:
-    case K_X2MOUSE:
-    case K_X2DRAG:
-    case K_X2RELEASE:
-      ins_mouse(c);
-      break;
-
-    case K_MOUSEDOWN:     /* Default action for scroll wheel up: scroll up */
-      ins_mousescroll(MSCR_DOWN);
-      break;
-
-    case K_MOUSEUP:     /* Default action for scroll wheel down: scroll down */
-      ins_mousescroll(MSCR_UP);
-      break;
-
-    case K_MOUSELEFT:     /* Scroll wheel left */
-      ins_mousescroll(MSCR_LEFT);
-      break;
-
-    case K_MOUSERIGHT:     /* Scroll wheel right */
-      ins_mousescroll(MSCR_RIGHT);
-      break;
-
-    case K_IGNORE:      /* Something mapped to nothing */
-      break;
-
-    case K_CURSORHOLD:          /* Didn't type something for a while. */
-      apply_autocmds(EVENT_CURSORHOLDI, NULL, NULL, FALSE, curbuf);
-      did_cursorhold = TRUE;
-      break;
-
-    case K_EVENT:
-      event_process();
-      break;
-
-    case K_HOME:        /* <Home> */
-    case K_KHOME:
-    case K_S_HOME:
-    case K_C_HOME:
-      ins_home(c);
-      break;
-
-    case K_END:         /* <End> */
-    case K_KEND:
-    case K_S_END:
-    case K_C_END:
-      ins_end(c);
-      break;
-
-    case K_LEFT:        /* <Left> */
-      if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL))
-        ins_s_left();
-      else
-        ins_left();
-      break;
-
-    case K_S_LEFT:      /* <S-Left> */
-    case K_C_LEFT:
-      ins_s_left();
-      break;
-
-    case K_RIGHT:       /* <Right> */
-      if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL))
-        ins_s_right();
-      else
-        ins_right();
-      break;
-
-    case K_S_RIGHT:     /* <S-Right> */
-    case K_C_RIGHT:
-      ins_s_right();
-      break;
-
-    case K_UP:          /* <Up> */
-      if (pum_visible())
-        goto docomplete;
-      if (mod_mask & MOD_MASK_SHIFT)
-        ins_pageup();
-      else
-        ins_up(FALSE);
-      break;
-
-    case K_S_UP:        /* <S-Up> */
-    case K_PAGEUP:
-    case K_KPAGEUP:
-      if (pum_visible())
-        goto docomplete;
-      ins_pageup();
-      break;
-
-    case K_DOWN:        /* <Down> */
-      if (pum_visible())
-        goto docomplete;
-      if (mod_mask & MOD_MASK_SHIFT)
-        ins_pagedown();
-      else
-        ins_down(FALSE);
-      break;
-
-    case K_S_DOWN:      /* <S-Down> */
-    case K_PAGEDOWN:
-    case K_KPAGEDOWN:
-      if (pum_visible())
-        goto docomplete;
-      ins_pagedown();
-      break;
-
-
-    case K_S_TAB:       /* When not mapped, use like a normal TAB */
-      c = TAB;
-    /* FALLTHROUGH */
-
-    case TAB:           /* TAB or Complete patterns along path */
-      if (ctrl_x_mode == CTRL_X_PATH_PATTERNS)
-        goto docomplete;
-      inserted_space = FALSE;
-      if (ins_tab())
-        goto normalchar;                /* insert TAB as a normal char */
-      auto_format(FALSE, TRUE);
-      break;
-
-    case K_KENTER:      /* <Enter> */
-      c = CAR;
-    /* FALLTHROUGH */
-    case CAR:
-    case NL:
-      /* In a quickfix window a <CR> jumps to the error under the
-       * cursor. */
-      if (bt_quickfix(curbuf) && c == CAR) {
-        if (curwin->w_llist_ref == NULL)            /* quickfix window */
-          do_cmdline_cmd((char_u *)".cc");
-        else                                        /* location list window */
-          do_cmdline_cmd((char_u *)".ll");
-        break;
-      }
-      if (cmdwin_type != 0) {
-        /* Execute the command in the cmdline window. */
-        cmdwin_result = CAR;
-        goto doESCkey;
-      }
-      if (ins_eol(c) && !p_im)
-        goto doESCkey;              /* out of memory */
-      auto_format(FALSE, FALSE);
-      inserted_space = FALSE;
-      break;
-
-    case Ctrl_K:            /* digraph or keyword completion */
-      if (ctrl_x_mode == CTRL_X_DICTIONARY) {
-        if (has_compl_option(TRUE))
-          goto docomplete;
-        break;
-      }
-      c = ins_digraph();
-      if (c == NUL)
-        break;
-      goto normalchar;
-
-    case Ctrl_X:        /* Enter CTRL-X mode */
-      ins_ctrl_x();
-      break;
-
-    case Ctrl_RSB:      /* Tag name completion after ^X */
-      if (ctrl_x_mode != CTRL_X_TAGS)
-        goto normalchar;
-      goto docomplete;
-
-    case Ctrl_F:        /* File name completion after ^X */
-      if (ctrl_x_mode != CTRL_X_FILES)
-        goto normalchar;
-      goto docomplete;
-
-    case 's':           /* Spelling completion after ^X */
-    case Ctrl_S:
-      if (ctrl_x_mode != CTRL_X_SPELL)
-        goto normalchar;
-      goto docomplete;
-
-    case Ctrl_L:        /* Whole line completion after ^X */
-      if (ctrl_x_mode != CTRL_X_WHOLE_LINE) {
-        /* CTRL-L with 'insertmode' set: Leave Insert mode */
-        if (p_im) {
-          if (echeck_abbr(Ctrl_L + ABBR_OFF))
-            break;
-          goto doESCkey;
-        }
-        goto normalchar;
-      }
-    /* FALLTHROUGH */
-
-    case Ctrl_P:        /* Do previous/next pattern completion */
-    case Ctrl_N:
-      /* if 'complete' is empty then plain ^P is no longer special,
-       * but it is under other ^X modes */
-      if (*curbuf->b_p_cpt == NUL
-          && ctrl_x_mode != 0
-          && !(compl_cont_status & CONT_LOCAL))
-        goto normalchar;
-
-docomplete:
-      compl_busy = TRUE;
-      if (ins_complete(c) == FAIL)
-        compl_cont_status = 0;
-      compl_busy = FALSE;
-      break;
-
-    case Ctrl_Y:        /* copy from previous line or scroll down */
-    case Ctrl_E:        /* copy from next line	   or scroll up */
-      c = ins_ctrl_ey(c);
-      break;
-
-    default:
-#ifdef UNIX
-      if (c == intr_char)               /* special interrupt char */
-        goto do_intr;
-#endif
-
-normalchar:
-      /*
-       * Insert a normal character.
-       */
-      if (!p_paste) {
-        /* Trigger InsertCharPre. */
-        char_u *str = do_insert_char_pre(c);
-        char_u *p;
-
-        if (str != NULL) {
-          if (*str != NUL && stop_arrow() != FAIL) {
-            /* Insert the new value of v:char literally. */
-            for (p = str; *p != NUL; mb_ptr_adv(p)) {
-              c = PTR2CHAR(p);
-              if (c == CAR || c == K_KENTER || c == NL)
-                ins_eol(c);
-              else
-                ins_char(c);
-            }
-            AppendToRedobuffLit(str, -1);
-          }
-          free(str);
-          c = NUL;
-        }
-
-        /* If the new value is already inserted or an empty string
-         * then don't insert any character. */
-        if (c == NUL)
-          break;
-      }
-      /* Try to perform smart-indenting. */
-      ins_try_si(c);
-
-      if (c == ' ') {
-        inserted_space = TRUE;
-        if (inindent(0))
-          can_cindent = FALSE;
-        if (Insstart_blank_vcol == MAXCOL
-            && curwin->w_cursor.lnum == Insstart.lnum)
-          Insstart_blank_vcol = get_nolist_virtcol();
-      }
-
-      /* Insert a normal character and check for abbreviations on a
-       * special character.  Let CTRL-] expand abbreviations without
-       * inserting it. */
-      if (vim_iswordc(c) || (!echeck_abbr(
-                                 /* Add ABBR_OFF for characters above 0x100, this is
-                                  * what check_abbr() expects. */
-                                 (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
-                                 c) && c != Ctrl_RSB)) {
-        insert_special(c, FALSE, FALSE);
-        revins_legal++;
-        revins_chars++;
-      }
-
-      auto_format(FALSE, TRUE);
-
-      /* When inserting a character the cursor line must never be in a
-       * closed fold. */
-      foldOpenCursor();
-      break;
-    }       /* end of switch (c) */
-
-    /* If typed something may trigger CursorHoldI again. */
-    if (c != K_CURSORHOLD)
-      did_cursorhold = FALSE;
-
-    /* If the cursor was moved we didn't just insert a space */
-    if (arrow_used)
-      inserted_space = FALSE;
-
-    if (can_cindent && cindent_on()
-        && ctrl_x_mode == 0
-        ) {
-force_cindent:
-      /*
-       * Indent now if a key was typed that is in 'cinkeys'.
-       */
-      if (in_cinkeys(c, ' ', line_is_white)) {
-        if (stop_arrow() == OK)
-          /* re-indent the current line */
-          do_c_expr_indent();
-      }
-    }
-
-  }     /* for (;;) */
-  /* NOTREACHED */
-}
-
-/*
- * Redraw for Insert mode.
- * This is postponed until getting the next character to make '$' in the 'cpo'
- * option work correctly.
- * Only redraw when there are no characters available.  This speeds up
- * inserting sequences of characters (e.g., for CTRL-R).
- */
-static void 
-ins_redraw (
-    int ready                   /* not busy with something */
-)
-{
-  linenr_T conceal_old_cursor_line = 0;
-  linenr_T conceal_new_cursor_line = 0;
-  int conceal_update_lines = FALSE;
-
-  if (char_avail())
-    return;
-
-  /* Trigger CursorMoved if the cursor moved.  Not when the popup menu is
-   * visible, the command might delete it. */
-  if (ready && (
-        has_cursormovedI()
-        ||
-        curwin->w_p_cole > 0
-        )
-      && !equalpos(last_cursormoved, curwin->w_cursor)
-      && !pum_visible()
-      ) {
-    /* Need to update the screen first, to make sure syntax
-     * highlighting is correct after making a change (e.g., inserting
-     * a "(".  The autocommand may also require a redraw, so it's done
-     * again below, unfortunately. */
-    if (syntax_present(curwin) && must_redraw)
-      update_screen(0);
-    if (has_cursormovedI())
-      apply_autocmds(EVENT_CURSORMOVEDI, NULL, NULL, FALSE, curbuf);
-    if (curwin->w_p_cole > 0) {
-      conceal_old_cursor_line = last_cursormoved.lnum;
-      conceal_new_cursor_line = curwin->w_cursor.lnum;
-      conceal_update_lines = TRUE;
-    }
-    last_cursormoved = curwin->w_cursor;
-  }
-
-  /* Trigger TextChangedI if b_changedtick differs. */
-  if (ready && has_textchangedI()
-      && last_changedtick != curbuf->b_changedtick
-      && !pum_visible()
-      ) {
-    if (last_changedtick_buf == curbuf)
-      apply_autocmds(EVENT_TEXTCHANGEDI, NULL, NULL, FALSE, curbuf);
-    last_changedtick_buf = curbuf;
-    last_changedtick = curbuf->b_changedtick;
-  }
-
-  if (must_redraw)
-    update_screen(0);
-  else if (clear_cmdline || redraw_cmdline)
-    showmode();                 /* clear cmdline and show mode */
-  if ((conceal_update_lines
-       && (conceal_old_cursor_line != conceal_new_cursor_line
-           || conceal_cursor_line(curwin)))
-      || need_cursor_line_redraw) {
-    if (conceal_old_cursor_line != conceal_new_cursor_line)
-      update_single_line(curwin, conceal_old_cursor_line);
-    update_single_line(curwin, conceal_new_cursor_line == 0
-        ? curwin->w_cursor.lnum : conceal_new_cursor_line);
-    curwin->w_valid &= ~VALID_CROW;
-  }
-  showruler(FALSE);
-  setcursor();
-  emsg_on_display = FALSE;      /* may remove error message now */
-}
-
-/*
- * Handle a CTRL-V or CTRL-Q typed in Insert mode.
- */
-static void ins_ctrl_v(void)
-{
-  int c;
-  int did_putchar = FALSE;
-
-  /* may need to redraw when no more chars available now */
-  ins_redraw(FALSE);
-
-  if (redrawing() && !char_avail()) {
-    edit_putchar('^', TRUE);
-    did_putchar = TRUE;
-  }
-  AppendToRedobuff((char_u *)CTRL_V_STR);       /* CTRL-V */
-
-  add_to_showcmd_c(Ctrl_V);
-
-  c = get_literal();
-  if (did_putchar)
-    /* when the line fits in 'columns' the '^' is at the start of the next
-     * line and will not removed by the redraw */
-    edit_unputchar();
-  clear_showcmd();
-  insert_special(c, FALSE, TRUE);
-  revins_chars++;
-  revins_legal++;
-}
-
-/*
- * Put a character directly onto the screen.  It's not stored in a buffer.
- * Used while handling CTRL-K, CTRL-V, etc. in Insert mode.
- */
-static int pc_status;
-#define PC_STATUS_UNSET 0       /* pc_bytes was not set */
-#define PC_STATUS_RIGHT 1       /* right halve of double-wide char */
-#define PC_STATUS_LEFT  2       /* left halve of double-wide char */
-#define PC_STATUS_SET   3       /* pc_bytes was filled */
-static char_u pc_bytes[MB_MAXBYTES + 1]; /* saved bytes */
-static int pc_attr;
-static int pc_row;
-static int pc_col;
-
-void edit_putchar(int c, int highlight)
-{
-  int attr;
-
-  if (ScreenLines != NULL) {
-    update_topline();           /* just in case w_topline isn't valid */
-    validate_cursor();
-    if (highlight)
-      attr = hl_attr(HLF_8);
-    else
-      attr = 0;
-    pc_row = W_WINROW(curwin) + curwin->w_wrow;
-    pc_col = W_WINCOL(curwin);
-    pc_status = PC_STATUS_UNSET;
-    if (curwin->w_p_rl) {
-      pc_col += W_WIDTH(curwin) - 1 - curwin->w_wcol;
-      if (has_mbyte) {
-        int fix_col = mb_fix_col(pc_col, pc_row);
-
-        if (fix_col != pc_col) {
-          screen_putchar(' ', pc_row, fix_col, attr);
-          --curwin->w_wcol;
-          pc_status = PC_STATUS_RIGHT;
-        }
-      }
-    } else {
-      pc_col += curwin->w_wcol;
-      if (mb_lefthalve(pc_row, pc_col))
-        pc_status = PC_STATUS_LEFT;
-    }
-
-    /* save the character to be able to put it back */
-    if (pc_status == PC_STATUS_UNSET) {
-      screen_getbytes(pc_row, pc_col, pc_bytes, &pc_attr);
-      pc_status = PC_STATUS_SET;
-    }
-    screen_putchar(c, pc_row, pc_col, attr);
-  }
-}
-
-/*
- * Undo the previous edit_putchar().
- */
-void edit_unputchar(void)
-{
-  if (pc_status != PC_STATUS_UNSET && pc_row >= msg_scrolled) {
-    if (pc_status == PC_STATUS_RIGHT)
-      ++curwin->w_wcol;
-    if (pc_status == PC_STATUS_RIGHT || pc_status == PC_STATUS_LEFT)
-      redrawWinline(curwin->w_cursor.lnum, FALSE);
-    else
-      screen_puts(pc_bytes, pc_row - msg_scrolled, pc_col, pc_attr);
-  }
-}
-
-/*
- * Called when p_dollar is set: display a '$' at the end of the changed text
- * Only works when cursor is in the line that changes.
- */
-void display_dollar(colnr_T col)
-{
-  colnr_T save_col;
-
-  if (!redrawing())
-    return;
-
-  cursor_off();
-  save_col = curwin->w_cursor.col;
-  curwin->w_cursor.col = col;
-  if (has_mbyte) {
-    char_u *p;
-
-    /* If on the last byte of a multi-byte move to the first byte. */
-    p = ml_get_curline();
-    curwin->w_cursor.col -= (*mb_head_off)(p, p + col);
-  }
-  curs_columns(FALSE);              /* recompute w_wrow and w_wcol */
-  if (curwin->w_wcol < W_WIDTH(curwin)) {
-    edit_putchar('$', FALSE);
-    dollar_vcol = curwin->w_virtcol;
-  }
-  curwin->w_cursor.col = save_col;
-}
-
-/*
- * Call this function before moving the cursor from the normal insert position
- * in insert mode.
- */
-static void undisplay_dollar(void)
-{
-  if (dollar_vcol >= 0) {
-    dollar_vcol = -1;
-    redrawWinline(curwin->w_cursor.lnum, FALSE);
-  }
-}
-
-/*
- * Insert an indent (for <Tab> or CTRL-T) or delete an indent (for CTRL-D).
- * Keep the cursor on the same character.
- * type == INDENT_INC	increase indent (for CTRL-T or <Tab>)
- * type == INDENT_DEC	decrease indent (for CTRL-D)
- * type == INDENT_SET	set indent to "amount"
- * if round is TRUE, round the indent to 'shiftwidth' (only with _INC and _Dec).
- */
-void 
-change_indent (
-    int type,
-    int amount,
-    int round,
-    int replaced,                   /* replaced character, put on replace stack */
-    int call_changed_bytes                 /* call changed_bytes() */
-)
-{
-  int vcol;
-  int last_vcol;
-  int insstart_less;                    /* reduction for Insstart.col */
-  int new_cursor_col;
-  int i;
-  char_u      *ptr;
-  int save_p_list;
-  int start_col;
-  colnr_T vc;
-  colnr_T orig_col = 0;                 /* init for GCC */
-  char_u      *new_line, *orig_line = NULL;     /* init for GCC */
-
-  /* VREPLACE mode needs to know what the line was like before changing */
-  if (State & VREPLACE_FLAG) {
-    orig_line = vim_strsave(ml_get_curline());      /* Deal with NULL below */
-    orig_col = curwin->w_cursor.col;
-  }
-
-  /* for the following tricks we don't want list mode */
-  save_p_list = curwin->w_p_list;
-  curwin->w_p_list = FALSE;
-  vc = getvcol_nolist(&curwin->w_cursor);
-  vcol = vc;
-
-  /*
-   * For Replace mode we need to fix the replace stack later, which is only
-   * possible when the cursor is in the indent.  Remember the number of
-   * characters before the cursor if it's possible.
-   */
-  start_col = curwin->w_cursor.col;
-
-  /* determine offset from first non-blank */
-  new_cursor_col = curwin->w_cursor.col;
-  beginline(BL_WHITE);
-  new_cursor_col -= curwin->w_cursor.col;
-
-  insstart_less = curwin->w_cursor.col;
-
-  /*
-   * If the cursor is in the indent, compute how many screen columns the
-   * cursor is to the left of the first non-blank.
-   */
-  if (new_cursor_col < 0)
-    vcol = get_indent() - vcol;
-
-  if (new_cursor_col > 0)           /* can't fix replace stack */
-    start_col = -1;
-
-  /*
-   * Set the new indent.  The cursor will be put on the first non-blank.
-   */
-  if (type == INDENT_SET)
-    (void)set_indent(amount, call_changed_bytes ? SIN_CHANGED : 0);
-  else {
-    int save_State = State;
-
-    /* Avoid being called recursively. */
-    if (State & VREPLACE_FLAG)
-      State = INSERT;
-    shift_line(type == INDENT_DEC, round, 1, call_changed_bytes);
-    State = save_State;
-  }
-  insstart_less -= curwin->w_cursor.col;
-
-  /*
-   * Try to put cursor on same character.
-   * If the cursor is at or after the first non-blank in the line,
-   * compute the cursor column relative to the column of the first
-   * non-blank character.
-   * If we are not in insert mode, leave the cursor on the first non-blank.
-   * If the cursor is before the first non-blank, position it relative
-   * to the first non-blank, counted in screen columns.
-   */
-  if (new_cursor_col >= 0) {
-    /*
-     * When changing the indent while the cursor is touching it, reset
-     * Insstart_col to 0.
-     */
-    if (new_cursor_col == 0)
-      insstart_less = MAXCOL;
-    new_cursor_col += curwin->w_cursor.col;
-  } else if (!(State & INSERT))
-    new_cursor_col = curwin->w_cursor.col;
-  else {
-    /*
-     * Compute the screen column where the cursor should be.
-     */
-    vcol = get_indent() - vcol;
-    curwin->w_virtcol = (colnr_T)((vcol < 0) ? 0 : vcol);
-
-    /*
-     * Advance the cursor until we reach the right screen column.
-     */
-    vcol = last_vcol = 0;
-    new_cursor_col = -1;
-    ptr = ml_get_curline();
-    while (vcol <= (int)curwin->w_virtcol) {
-      last_vcol = vcol;
-      if (has_mbyte && new_cursor_col >= 0)
-        new_cursor_col += (*mb_ptr2len)(ptr + new_cursor_col);
-      else
-        ++new_cursor_col;
-      vcol += lbr_chartabsize(ptr + new_cursor_col, (colnr_T)vcol);
-    }
-    vcol = last_vcol;
-
-    /*
-     * May need to insert spaces to be able to position the cursor on
-     * the right screen column.
-     */
-    if (vcol != (int)curwin->w_virtcol) {
-      curwin->w_cursor.col = (colnr_T)new_cursor_col;
-      i = (int)curwin->w_virtcol - vcol;
-      ptr = xmallocz(i);
-      memset(ptr, ' ', i);
-      new_cursor_col += i;
-      ins_str(ptr);
-      free(ptr);
-    }
-
-    /*
-     * When changing the indent while the cursor is in it, reset
-     * Insstart_col to 0.
-     */
-    insstart_less = MAXCOL;
-  }
-
-  curwin->w_p_list = save_p_list;
-
-  if (new_cursor_col <= 0)
-    curwin->w_cursor.col = 0;
-  else
-    curwin->w_cursor.col = (colnr_T)new_cursor_col;
-  curwin->w_set_curswant = TRUE;
-  changed_cline_bef_curs();
-
-  /*
-   * May have to adjust the start of the insert.
-   */
-  if (State & INSERT) {
-    if (curwin->w_cursor.lnum == Insstart.lnum && Insstart.col != 0) {
-      if ((int)Insstart.col <= insstart_less)
-        Insstart.col = 0;
-      else
-        Insstart.col -= insstart_less;
-    }
-    if ((int)ai_col <= insstart_less)
-      ai_col = 0;
-    else
-      ai_col -= insstart_less;
-  }
-
-  /*
-   * For REPLACE mode, may have to fix the replace stack, if it's possible.
-   * If the number of characters before the cursor decreased, need to pop a
-   * few characters from the replace stack.
-   * If the number of characters before the cursor increased, need to push a
-   * few NULs onto the replace stack.
-   */
-  if (REPLACE_NORMAL(State) && start_col >= 0) {
-    while (start_col > (int)curwin->w_cursor.col) {
-      replace_join(0);              /* remove a NUL from the replace stack */
-      --start_col;
-    }
-    while (start_col < (int)curwin->w_cursor.col || replaced) {
-      replace_push(NUL);
-      if (replaced) {
-        replace_push(replaced);
-        replaced = NUL;
-      }
-      ++start_col;
-    }
-  }
-
-  /*
-   * For VREPLACE mode, we also have to fix the replace stack.  In this case
-   * it is always possible because we backspace over the whole line and then
-   * put it back again the way we wanted it.
-   */
-  if (State & VREPLACE_FLAG) {
-    /* If orig_line didn't allocate, just return.  At least we did the job,
-     * even if you can't backspace. */
-    if (orig_line == NULL)
-      return;
-
-    /* Save new line */
-    new_line = vim_strsave(ml_get_curline());
-    if (new_line == NULL)
-      return;
-
-    /* We only put back the new line up to the cursor */
-    new_line[curwin->w_cursor.col] = NUL;
-
-    /* Put back original line */
-    ml_replace(curwin->w_cursor.lnum, orig_line, FALSE);
-    curwin->w_cursor.col = orig_col;
-
-    /* Backspace from cursor to start of line */
-    backspace_until_column(0);
-
-    /* Insert new stuff into line again */
-    ins_bytes(new_line);
-
-    free(new_line);
-  }
-}
-
-/*
- * Truncate the space at the end of a line.  This is to be used only in an
- * insert mode.  It handles fixing the replace stack for REPLACE and VREPLACE
- * modes.
- */
-void truncate_spaces(char_u *line)
-{
-  int i;
-
-  /* find start of trailing white space */
-  for (i = (int)STRLEN(line) - 1; i >= 0 && vim_iswhite(line[i]); i--) {
-    if (State & REPLACE_FLAG)
-      replace_join(0);              /* remove a NUL from the replace stack */
-  }
-  line[i + 1] = NUL;
-}
-
-#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) \
-  || defined(FEAT_COMMENTS) || defined(PROTO)
-/*
- * Backspace the cursor until the given column.  Handles REPLACE and VREPLACE
- * modes correctly.  May also be used when not in insert mode at all.
- * Will attempt not to go before "col" even when there is a composing
- * character.
- */
-void backspace_until_column(int col)
-{
-  while ((int)curwin->w_cursor.col > col) {
-    curwin->w_cursor.col--;
-    if (State & REPLACE_FLAG)
-      replace_do_bs(col);
-    else if (!del_char_after_col(col))
-      break;
-  }
-}
-#endif
-
-/*
- * Like del_char(), but make sure not to go before column "limit_col".
- * Only matters when there are composing characters.
- * Return TRUE when something was deleted.
- */
-static int del_char_after_col(int limit_col)
-{
-  if (enc_utf8 && limit_col >= 0) {
-    colnr_T ecol = curwin->w_cursor.col + 1;
-
-    /* Make sure the cursor is at the start of a character, but
-     * skip forward again when going too far back because of a
-     * composing character. */
-    mb_adjust_cursor();
-    while (curwin->w_cursor.col < (colnr_T)limit_col) {
-      int l = utf_ptr2len(ml_get_cursor());
-
-      if (l == 0)        /* end of line */
-        break;
-      curwin->w_cursor.col += l;
-    }
-    if (*ml_get_cursor() == NUL || curwin->w_cursor.col == ecol)
-      return FALSE;
-    del_bytes((long)((int)ecol - curwin->w_cursor.col), FALSE, TRUE);
-  } else
-    (void)del_char(FALSE);
-  return TRUE;
-}
-
-/*
- * CTRL-X pressed in Insert mode.
- */
-static void ins_ctrl_x(void)
-{
-  /* CTRL-X after CTRL-X CTRL-V doesn't do anything, so that CTRL-X
-   * CTRL-V works like CTRL-N */
-  if (ctrl_x_mode != CTRL_X_CMDLINE) {
-    /* if the next ^X<> won't ADD nothing, then reset
-     * compl_cont_status */
-    if (compl_cont_status & CONT_N_ADDS)
-      compl_cont_status |= CONT_INTRPT;
-    else
-      compl_cont_status = 0;
-    /* We're not sure which CTRL-X mode it will be yet */
-    ctrl_x_mode = CTRL_X_NOT_DEFINED_YET;
-    edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
-    edit_submode_pre = NULL;
-    showmode();
-  }
-}
-
-/*
- * Return TRUE if the 'dict' or 'tsr' option can be used.
- */
-static int has_compl_option(int dict_opt)
-{
-  if (dict_opt ? (*curbuf->b_p_dict == NUL && *p_dict == NUL
-                  && !curwin->w_p_spell
-                  )
-      : (*curbuf->b_p_tsr == NUL && *p_tsr == NUL)) {
-    ctrl_x_mode = 0;
-    edit_submode = NULL;
-    msg_attr(dict_opt ? (char_u *)_("'dictionary' option is empty")
-        : (char_u *)_("'thesaurus' option is empty"),
-        hl_attr(HLF_E));
-    if (emsg_silent == 0) {
-      vim_beep();
-      setcursor();
-      out_flush();
-      ui_delay(2000L, FALSE);
-    }
-    return FALSE;
-  }
-  return TRUE;
-}
-
-/*
- * Is the character 'c' a valid key to go to or keep us in CTRL-X mode?
- * This depends on the current mode.
- */
-int vim_is_ctrl_x_key(int c)
-{
-  /* Always allow ^R - let it's results then be checked */
-  if (c == Ctrl_R)
-    return TRUE;
-
-  /* Accept <PageUp> and <PageDown> if the popup menu is visible. */
-  if (ins_compl_pum_key(c))
-    return TRUE;
-
-  switch (ctrl_x_mode) {
-  case 0:                   /* Not in any CTRL-X mode */
-    return c == Ctrl_N || c == Ctrl_P || c == Ctrl_X;
-  case CTRL_X_NOT_DEFINED_YET:
-    return c == Ctrl_X || c == Ctrl_Y || c == Ctrl_E
-           || c == Ctrl_L || c == Ctrl_F || c == Ctrl_RSB
-           || c == Ctrl_I || c == Ctrl_D || c == Ctrl_P
-           || c == Ctrl_N || c == Ctrl_T || c == Ctrl_V
-           || c == Ctrl_Q || c == Ctrl_U || c == Ctrl_O
-           || c == Ctrl_S || c == Ctrl_K || c == 's';
-  case CTRL_X_SCROLL:
-    return c == Ctrl_Y || c == Ctrl_E;
-  case CTRL_X_WHOLE_LINE:
-    return c == Ctrl_L || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_FILES:
-    return c == Ctrl_F || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_DICTIONARY:
-    return c == Ctrl_K || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_THESAURUS:
-    return c == Ctrl_T || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_TAGS:
-    return c == Ctrl_RSB || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_PATH_PATTERNS:
-    return c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_PATH_DEFINES:
-    return c == Ctrl_D || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_CMDLINE:
-    return c == Ctrl_V || c == Ctrl_Q || c == Ctrl_P || c == Ctrl_N
-           || c == Ctrl_X;
-  case CTRL_X_FUNCTION:
-    return c == Ctrl_U || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_OMNI:
-    return c == Ctrl_O || c == Ctrl_P || c == Ctrl_N;
-  case CTRL_X_SPELL:
-    return c == Ctrl_S || c == Ctrl_P || c == Ctrl_N;
-  }
-  EMSG(_(e_internal));
-  return FALSE;
-}
-
-/*
- * Return TRUE when character "c" is part of the item currently being
- * completed.  Used to decide whether to abandon complete mode when the menu
- * is visible.
- */
-static int ins_compl_accept_char(int c)
-{
-  if (ctrl_x_mode & CTRL_X_WANT_IDENT)
-    /* When expanding an identifier only accept identifier chars. */
-    return vim_isIDc(c);
-
-  switch (ctrl_x_mode) {
-  case CTRL_X_FILES:
-    /* When expanding file name only accept file name chars. But not
-     * path separators, so that "proto/<Tab>" expands files in
-     * "proto", not "proto/" as a whole */
-    return vim_isfilec(c) && !vim_ispathsep(c);
-
-  case CTRL_X_CMDLINE:
-  case CTRL_X_OMNI:
-    /* Command line and Omni completion can work with just about any
-     * printable character, but do stop at white space. */
-    return vim_isprintc(c) && !vim_iswhite(c);
-
-  case CTRL_X_WHOLE_LINE:
-    /* For while line completion a space can be part of the line. */
-    return vim_isprintc(c);
-  }
-  return vim_iswordc(c);
-}
-
-/*
- * This is like ins_compl_add(), but if 'ic' and 'inf' are set, then the
- * case of the originally typed text is used, and the case of the completed
- * text is inferred, ie this tries to work out what case you probably wanted
- * the rest of the word to be in -- webb
- */
-int ins_compl_add_infercase(char_u *str, int len, int icase, char_u *fname, int dir, int flags)
-{
-  char_u      *p;
-  int i, c;
-  int actual_len;                       /* Take multi-byte characters */
-  int actual_compl_length;              /* into account. */
-  int min_len;
-  int         *wca;                     /* Wide character array. */
-  int has_lower = FALSE;
-  int was_letter = FALSE;
-
-  if (p_ic && curbuf->b_p_inf && len > 0) {
-    /* Infer case of completed part. */
-
-    /* Find actual length of completion. */
-    if (has_mbyte) {
-      p = str;
-      actual_len = 0;
-      while (*p != NUL) {
-        mb_ptr_adv(p);
-        ++actual_len;
-      }
-    } else
-      actual_len = len;
-
-    /* Find actual length of original text. */
-    if (has_mbyte) {
-      p = compl_orig_text;
-      actual_compl_length = 0;
-      while (*p != NUL) {
-        mb_ptr_adv(p);
-        ++actual_compl_length;
-      }
-    } else
-      actual_compl_length = compl_length;
-
-    /* "actual_len" may be smaller than "actual_compl_length" when using
-     * thesaurus, only use the minimum when comparing. */
-    min_len = actual_len < actual_compl_length
-              ? actual_len : actual_compl_length;
-
-    /* Allocate wide character array for the completion and fill it. */
-    wca = xmalloc(actual_len * sizeof(*wca));
-    p = str;
-    for (i = 0; i < actual_len; ++i)
-      if (has_mbyte)
-        wca[i] = mb_ptr2char_adv(&p);
-      else
-        wca[i] = *(p++);
-
-    /* Rule 1: Were any chars converted to lower? */
-    p = compl_orig_text;
-    for (i = 0; i < min_len; ++i) {
-      if (has_mbyte)
-        c = mb_ptr2char_adv(&p);
-      else
-        c = *(p++);
-      if (vim_islower(c)) {
-        has_lower = TRUE;
-        if (vim_isupper(wca[i])) {
-          /* Rule 1 is satisfied. */
-          for (i = actual_compl_length; i < actual_len; ++i)
-            wca[i] = vim_tolower(wca[i]);
-          break;
-        }
-      }
-    }
-
-    /*
-     * Rule 2: No lower case, 2nd consecutive letter converted to
-     * upper case.
-     */
-    if (!has_lower) {
-      p = compl_orig_text;
-      for (i = 0; i < min_len; ++i) {
-        if (has_mbyte)
-          c = mb_ptr2char_adv(&p);
-        else
-          c = *(p++);
-        if (was_letter && vim_isupper(c) && vim_islower(wca[i])) {
-          /* Rule 2 is satisfied. */
-          for (i = actual_compl_length; i < actual_len; ++i)
-            wca[i] = vim_toupper(wca[i]);
-          break;
-        }
-        was_letter = vim_islower(c) || vim_isupper(c);
-      }
-    }
-
-    /* Copy the original case of the part we typed. */
-    p = compl_orig_text;
-    for (i = 0; i < min_len; ++i) {
-      if (has_mbyte)
-        c = mb_ptr2char_adv(&p);
-      else
-        c = *(p++);
-      if (vim_islower(c))
-        wca[i] = vim_tolower(wca[i]);
-      else if (vim_isupper(c))
-        wca[i] = vim_toupper(wca[i]);
-    }
-
-    /*
-     * Generate encoding specific output from wide character array.
-     * Multi-byte characters can occupy up to five bytes more than
-     * ASCII characters, and we also need one byte for NUL, so stay
-     * six bytes away from the edge of IObuff.
-     */
-    p = IObuff;
-    i = 0;
-    while (i < actual_len && (p - IObuff + 6) < IOSIZE)
-      if (has_mbyte)
-        p += (*mb_char2bytes)(wca[i++], p);
-      else
-        *(p++) = wca[i++];
-    *p = NUL;
-
-    free(wca);
-
-    return ins_compl_add(IObuff, len, icase, fname, NULL, dir,
-        flags, FALSE);
-  }
-  return ins_compl_add(str, len, icase, fname, NULL, dir, flags, FALSE);
-}
-
-/*
- * Add a match to the list of matches.
- * If the given string is already in the list of completions, then return
- * NOTDONE, otherwise add it to the list and return OK.  If there is an error
- * then FAIL is returned.
- */
-static int 
-ins_compl_add (
-    char_u *str,
-    int len,
-    int icase,
-    char_u *fname,
-    char_u **cptext,       /* extra text for popup menu or NULL */
-    int cdir,
-    int flags,
-    int adup                   /* accept duplicate match */
-)
-{
-  compl_T     *match;
-  int dir = (cdir == 0 ? compl_direction : cdir);
-
-  ui_breakcheck();
-  if (got_int)
-    return FAIL;
-  if (len < 0)
-    len = (int)STRLEN(str);
-
-  /*
-   * If the same match is already present, don't add it.
-   */
-  if (compl_first_match != NULL && !adup) {
-    match = compl_first_match;
-    do {
-      if (    !(match->cp_flags & ORIGINAL_TEXT)
-              && STRNCMP(match->cp_str, str, len) == 0
-              && match->cp_str[len] == NUL)
-        return NOTDONE;
-      match = match->cp_next;
-    } while (match != NULL && match != compl_first_match);
-  }
-
-  /* Remove any popup menu before changing the list of matches. */
-  ins_compl_del_pum();
-
-  /*
-   * Allocate a new match structure.
-   * Copy the values to the new match structure.
-   */
-  match = xcalloc(1, sizeof(compl_T));
-  match->cp_number = -1;
-  if (flags & ORIGINAL_TEXT)
-    match->cp_number = 0;
-  if ((match->cp_str = vim_strnsave(str, len)) == NULL) {
-    free(match);
-    return FAIL;
-  }
-  match->cp_icase = icase;
-
-  /* match-fname is:
-   * - compl_curr_match->cp_fname if it is a string equal to fname.
-   * - a copy of fname, FREE_FNAME is set to free later THE allocated mem.
-   * - NULL otherwise.	--Acevedo */
-  if (fname != NULL
-      && compl_curr_match != NULL
-      && compl_curr_match->cp_fname != NULL
-      && STRCMP(fname, compl_curr_match->cp_fname) == 0)
-    match->cp_fname = compl_curr_match->cp_fname;
-  else if (fname != NULL) {
-    match->cp_fname = vim_strsave(fname);
-    flags |= FREE_FNAME;
-  } else
-    match->cp_fname = NULL;
-  match->cp_flags = flags;
-
-  if (cptext != NULL) {
-    int i;
-
-    for (i = 0; i < CPT_COUNT; ++i)
-      if (cptext[i] != NULL && *cptext[i] != NUL)
-        match->cp_text[i] = vim_strsave(cptext[i]);
-  }
-
-  /*
-   * Link the new match structure in the list of matches.
-   */
-  if (compl_first_match == NULL)
-    match->cp_next = match->cp_prev = NULL;
-  else if (dir == FORWARD) {
-    match->cp_next = compl_curr_match->cp_next;
-    match->cp_prev = compl_curr_match;
-  } else {    /* BACKWARD */
-    match->cp_next = compl_curr_match;
-    match->cp_prev = compl_curr_match->cp_prev;
-  }
-  if (match->cp_next)
-    match->cp_next->cp_prev = match;
-  if (match->cp_prev)
-    match->cp_prev->cp_next = match;
-  else          /* if there's nothing before, it is the first match */
-    compl_first_match = match;
-  compl_curr_match = match;
-
-  /*
-   * Find the longest common string if still doing that.
-   */
-  if (compl_get_longest && (flags & ORIGINAL_TEXT) == 0)
-    ins_compl_longest_match(match);
-
-  return OK;
-}
-
-/*
- * Return TRUE if "str[len]" matches with match->cp_str, considering
- * match->cp_icase.
- */
-static int ins_compl_equal(compl_T *match, char_u *str, int len)
-{
-  if (match->cp_icase)
-    return STRNICMP(match->cp_str, str, (size_t)len) == 0;
-  return STRNCMP(match->cp_str, str, (size_t)len) == 0;
-}
-
-/*
- * Reduce the longest common string for match "match".
- */
-static void ins_compl_longest_match(compl_T *match)
-{
-  char_u      *p, *s;
-  int c1, c2;
-  int had_match;
-
-  if (compl_leader == NULL) {
-    /* First match, use it as a whole. */
-    compl_leader = vim_strsave(match->cp_str);
-    if (compl_leader != NULL) {
-      had_match = (curwin->w_cursor.col > compl_col);
-      ins_compl_delete();
-      ins_bytes(compl_leader + ins_compl_len());
-      ins_redraw(FALSE);
-
-      /* When the match isn't there (to avoid matching itself) remove it
-       * again after redrawing. */
-      if (!had_match)
-        ins_compl_delete();
-      compl_used_match = FALSE;
-    }
-  } else {
-    /* Reduce the text if this match differs from compl_leader. */
-    p = compl_leader;
-    s = match->cp_str;
-    while (*p != NUL) {
-      if (has_mbyte) {
-        c1 = mb_ptr2char(p);
-        c2 = mb_ptr2char(s);
-      } else {
-        c1 = *p;
-        c2 = *s;
-      }
-      if (match->cp_icase ? (vim_tolower(c1) != vim_tolower(c2))
-          : (c1 != c2))
-        break;
-      if (has_mbyte) {
-        mb_ptr_adv(p);
-        mb_ptr_adv(s);
-      } else {
-        ++p;
-        ++s;
-      }
-    }
-
-    if (*p != NUL) {
-      /* Leader was shortened, need to change the inserted text. */
-      *p = NUL;
-      had_match = (curwin->w_cursor.col > compl_col);
-      ins_compl_delete();
-      ins_bytes(compl_leader + ins_compl_len());
-      ins_redraw(FALSE);
-
-      /* When the match isn't there (to avoid matching itself) remove it
-       * again after redrawing. */
-      if (!had_match)
-        ins_compl_delete();
-    }
-
-    compl_used_match = FALSE;
-  }
-}
-
-/*
- * Add an array of matches to the list of matches.
- * Frees matches[].
- */
-static void ins_compl_add_matches(int num_matches, char_u **matches, int icase)
-{
-  int i;
-  int add_r = OK;
-  int dir = compl_direction;
-
-  for (i = 0; i < num_matches && add_r != FAIL; i++)
-    if ((add_r = ins_compl_add(matches[i], -1, icase,
-             NULL, NULL, dir, 0, FALSE)) == OK)
-      /* if dir was BACKWARD then honor it just once */
-      dir = FORWARD;
-  FreeWild(num_matches, matches);
-}
-
-/* Make the completion list cyclic.
- * Return the number of matches (excluding the original).
- */
-static int ins_compl_make_cyclic(void)
-{
-  compl_T *match;
-  int count = 0;
-
-  if (compl_first_match != NULL) {
-    /*
-     * Find the end of the list.
-     */
-    match = compl_first_match;
-    /* there's always an entry for the compl_orig_text, it doesn't count. */
-    while (match->cp_next != NULL && match->cp_next != compl_first_match) {
-      match = match->cp_next;
-      ++count;
-    }
-    match->cp_next = compl_first_match;
-    compl_first_match->cp_prev = match;
-  }
-  return count;
-}
-
-/*
- * Start completion for the complete() function.
- * "startcol" is where the matched text starts (1 is first column).
- * "list" is the list of matches.
- */
-void set_completion(colnr_T startcol, list_T *list)
-{
-  /* If already doing completions stop it. */
-  if (ctrl_x_mode != 0)
-    ins_compl_prep(' ');
-  ins_compl_clear();
-
-  if (stop_arrow() == FAIL)
-    return;
-
-  compl_direction = FORWARD;
-  if (startcol > curwin->w_cursor.col)
-    startcol = curwin->w_cursor.col;
-  compl_col = startcol;
-  compl_length = (int)curwin->w_cursor.col - (int)startcol;
-  /* compl_pattern doesn't need to be set */
-  compl_orig_text = vim_strnsave(ml_get_curline() + compl_col, compl_length);
-  if (compl_orig_text == NULL || ins_compl_add(compl_orig_text,
-          -1, p_ic, NULL, NULL, 0, ORIGINAL_TEXT, FALSE) != OK)
-    return;
-
-  /* Handle like dictionary completion. */
-  ctrl_x_mode = CTRL_X_WHOLE_LINE;
-
-  ins_compl_add_list(list);
-  compl_matches = ins_compl_make_cyclic();
-  compl_started = TRUE;
-  compl_used_match = TRUE;
-  compl_cont_status = 0;
-
-  compl_curr_match = compl_first_match;
-  ins_complete(Ctrl_N);
-  out_flush();
-}
-
-
-/* "compl_match_array" points the currently displayed list of entries in the
- * popup menu.  It is NULL when there is no popup menu. */
-static pumitem_T *compl_match_array = NULL;
-static int compl_match_arraysize;
-
-/*
- * Update the screen and when there is any scrolling remove the popup menu.
- */
-static void ins_compl_upd_pum(void)
-{
-  int h;
-
-  if (compl_match_array != NULL) {
-    h = curwin->w_cline_height;
-    update_screen(0);
-    if (h != curwin->w_cline_height)
-      ins_compl_del_pum();
-  }
-}
-
-/*
- * Remove any popup menu.
- */
-static void ins_compl_del_pum(void)
-{
-  if (compl_match_array != NULL) {
-    pum_undisplay();
-    free(compl_match_array);
-    compl_match_array = NULL;
-  }
-}
-
-/*
- * Return TRUE if the popup menu should be displayed.
- */
-static int pum_wanted(void)
-{
-  /* 'completeopt' must contain "menu" or "menuone" */
-  if (vim_strchr(p_cot, 'm') == NULL)
-    return FALSE;
-
-  /* The display looks bad on a B&W display. */
-  if (t_colors < 8
-      )
-    return FALSE;
-  return TRUE;
-}
-
-/*
- * Return TRUE if there are two or more matches to be shown in the popup menu.
- * One if 'completopt' contains "menuone".
- */
-static int pum_enough_matches(void)
-{
-  compl_T     *compl;
-  int i;
-
-  /* Don't display the popup menu if there are no matches or there is only
-   * one (ignoring the original text). */
-  compl = compl_first_match;
-  i = 0;
-  do {
-    if (compl == NULL
-        || ((compl->cp_flags & ORIGINAL_TEXT) == 0 && ++i == 2))
-      break;
-    compl = compl->cp_next;
-  } while (compl != compl_first_match);
-
-  if (strstr((char *)p_cot, "menuone") != NULL)
-    return i >= 1;
-  return i >= 2;
-}
-
-/*
- * Show the popup menu for the list of matches.
- * Also adjusts "compl_shown_match" to an entry that is actually displayed.
- */
-void ins_compl_show_pum(void)
-{
-  compl_T     *compl;
-  compl_T     *shown_compl = NULL;
-  int did_find_shown_match = FALSE;
-  int shown_match_ok = FALSE;
-  int i;
-  int cur = -1;
-  colnr_T col;
-  int lead_len = 0;
-
-  if (!pum_wanted() || !pum_enough_matches())
-    return;
-
-  /* Dirty hard-coded hack: remove any matchparen highlighting. */
-  do_cmdline_cmd((char_u *)"if exists('g:loaded_matchparen')|3match none|endif");
-
-  /* Update the screen before drawing the popup menu over it. */
-  update_screen(0);
-
-  if (compl_match_array == NULL) {
-    /* Need to build the popup menu list. */
-    compl_match_arraysize = 0;
-    compl = compl_first_match;
-    if (compl_leader != NULL)
-      lead_len = (int)STRLEN(compl_leader);
-    do {
-      if ((compl->cp_flags & ORIGINAL_TEXT) == 0
-          && (compl_leader == NULL
-              || ins_compl_equal(compl, compl_leader, lead_len)))
-        ++compl_match_arraysize;
-      compl = compl->cp_next;
-    } while (compl != NULL && compl != compl_first_match);
-    if (compl_match_arraysize == 0)
-      return;
-
-    assert(compl_match_arraysize >= 0);
-    compl_match_array = xcalloc(compl_match_arraysize, sizeof(pumitem_T));
-    /* If the current match is the original text don't find the first
-     * match after it, don't highlight anything. */
-    if (compl_shown_match->cp_flags & ORIGINAL_TEXT)
-      shown_match_ok = TRUE;
-
-    i = 0;
-    compl = compl_first_match;
-    do {
-      if ((compl->cp_flags & ORIGINAL_TEXT) == 0
-          && (compl_leader == NULL
-              || ins_compl_equal(compl, compl_leader, lead_len))) {
-        if (!shown_match_ok) {
-          if (compl == compl_shown_match || did_find_shown_match) {
-            /* This item is the shown match or this is the
-             * first displayed item after the shown match. */
-            compl_shown_match = compl;
-            did_find_shown_match = TRUE;
-            shown_match_ok = TRUE;
-          } else
-            /* Remember this displayed match for when the
-             * shown match is just below it. */
-            shown_compl = compl;
-          cur = i;
-        }
-
-        if (compl->cp_text[CPT_ABBR] != NULL)
-          compl_match_array[i].pum_text =
-            compl->cp_text[CPT_ABBR];
-        else
-          compl_match_array[i].pum_text = compl->cp_str;
-        compl_match_array[i].pum_kind = compl->cp_text[CPT_KIND];
-        compl_match_array[i].pum_info = compl->cp_text[CPT_INFO];
-        if (compl->cp_text[CPT_MENU] != NULL)
-          compl_match_array[i++].pum_extra =
-            compl->cp_text[CPT_MENU];
-        else
-          compl_match_array[i++].pum_extra = compl->cp_fname;
-      }
-
-      if (compl == compl_shown_match) {
-        did_find_shown_match = TRUE;
-
-        /* When the original text is the shown match don't set
-         * compl_shown_match. */
-        if (compl->cp_flags & ORIGINAL_TEXT)
-          shown_match_ok = TRUE;
-
-        if (!shown_match_ok && shown_compl != NULL) {
-          /* The shown match isn't displayed, set it to the
-           * previously displayed match. */
-          compl_shown_match = shown_compl;
-          shown_match_ok = TRUE;
-        }
-      }
-      compl = compl->cp_next;
-    } while (compl != NULL && compl != compl_first_match);
-
-    if (!shown_match_ok)          /* no displayed match at all */
-      cur = -1;
-  } else {
-    /* popup menu already exists, only need to find the current item.*/
-    for (i = 0; i < compl_match_arraysize; ++i)
-      if (compl_match_array[i].pum_text == compl_shown_match->cp_str
-          || compl_match_array[i].pum_text
-          == compl_shown_match->cp_text[CPT_ABBR]) {
-        cur = i;
-        break;
-      }
-  }
-
-  if (compl_match_array != NULL) {
-    /* Compute the screen column of the start of the completed text.
-     * Use the cursor to get all wrapping and other settings right. */
-    col = curwin->w_cursor.col;
-    curwin->w_cursor.col = compl_col;
-    pum_display(compl_match_array, compl_match_arraysize, cur);
-    curwin->w_cursor.col = col;
-  }
-}
-
-#define DICT_FIRST      (1)     /* use just first element in "dict" */
-#define DICT_EXACT      (2)     /* "dict" is the exact name of a file */
-
-/*
- * Add any identifiers that match the given pattern in the list of dictionary
- * files "dict_start" to the list of completions.
- */
-static void 
-ins_compl_dictionaries (
-    char_u *dict_start,
-    char_u *pat,
-    int flags,                      /* DICT_FIRST and/or DICT_EXACT */
-    int thesaurus                  /* Thesaurus completion */
-)
-{
-  char_u      *dict = dict_start;
-  char_u      *ptr;
-  char_u      *buf;
-  regmatch_T regmatch;
-  char_u      **files;
-  int count;
-  int save_p_scs;
-  int dir = compl_direction;
-
-  if (*dict == NUL) {
-    /* When 'dictionary' is empty and spell checking is enabled use
-     * "spell". */
-    if (!thesaurus && curwin->w_p_spell)
-      dict = (char_u *)"spell";
-    else
-      return;
-  }
-
-  buf = xmalloc(LSIZE);
-  regmatch.regprog = NULL;      /* so that we can goto theend */
-
-  /* If 'infercase' is set, don't use 'smartcase' here */
-  save_p_scs = p_scs;
-  if (curbuf->b_p_inf)
-    p_scs = FALSE;
-
-  /* When invoked to match whole lines for CTRL-X CTRL-L adjust the pattern
-   * to only match at the start of a line.  Otherwise just match the
-   * pattern. Also need to double backslashes. */
-  if (ctrl_x_mode == CTRL_X_WHOLE_LINE) {
-    char_u *pat_esc = vim_strsave_escaped(pat, (char_u *)"\\");
-
-    if (pat_esc == NULL)
-      goto theend;
-    size_t len = STRLEN(pat_esc) + 10;
-    ptr = xmalloc(len);
-    vim_snprintf((char *)ptr, len, "^\\s*\\zs\\V%s", pat_esc);
-    regmatch.regprog = vim_regcomp(ptr, RE_MAGIC);
-    free(pat_esc);
-    free(ptr);
-  } else {
-    regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
-    if (regmatch.regprog == NULL)
-      goto theend;
-  }
-
-  /* ignore case depends on 'ignorecase', 'smartcase' and "pat" */
-  regmatch.rm_ic = ignorecase(pat);
-  while (*dict != NUL && !got_int && !compl_interrupted) {
-    /* copy one dictionary file name into buf */
-    if (flags == DICT_EXACT) {
-      count = 1;
-      files = &dict;
-    } else {
-      /* Expand wildcards in the dictionary name, but do not allow
-       * backticks (for security, the 'dict' option may have been set in
-       * a modeline). */
-      copy_option_part(&dict, buf, LSIZE, ",");
-      if (!thesaurus && STRCMP(buf, "spell") == 0)
-        count = -1;
-      else if (vim_strchr(buf, '`') != NULL
-               || expand_wildcards(1, &buf, &count, &files,
-                   EW_FILE|EW_SILENT) != OK)
-        count = 0;
-    }
-
-    if (count == -1) {
-      /* Complete from active spelling.  Skip "\<" in the pattern, we
-       * don't use it as a RE. */
-      if (pat[0] == '\\' && pat[1] == '<')
-        ptr = pat + 2;
-      else
-        ptr = pat;
-      spell_dump_compl(ptr, regmatch.rm_ic, &dir, 0);
-    } else if (count > 0) {  /* avoid warning for using "files" uninit */
-      ins_compl_files(count, files, thesaurus, flags,
-          &regmatch, buf, &dir);
-      if (flags != DICT_EXACT)
-        FreeWild(count, files);
-    }
-    if (flags != 0)
-      break;
-  }
-
-theend:
-  p_scs = save_p_scs;
-  vim_regfree(regmatch.regprog);
-  free(buf);
-}
-
-static void ins_compl_files(int count, char_u **files, int thesaurus, int flags, regmatch_T *regmatch, char_u *buf, int *dir)
-{
-  char_u      *ptr;
-  int i;
-  FILE        *fp;
-  int add_r;
-
-  for (i = 0; i < count && !got_int && !compl_interrupted; i++) {
-    fp = mch_fopen((char *)files[i], "r");      /* open dictionary file */
-    if (flags != DICT_EXACT) {
-      vim_snprintf((char *)IObuff, IOSIZE,
-          _("Scanning dictionary: %s"), (char *)files[i]);
-      (void)msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
-    }
-
-    if (fp != NULL) {
-      /*
-       * Read dictionary file line by line.
-       * Check each line for a match.
-       */
-      while (!got_int && !compl_interrupted
-             && !vim_fgets(buf, LSIZE, fp)) {
-        ptr = buf;
-        while (vim_regexec(regmatch, buf, (colnr_T)(ptr - buf))) {
-          ptr = regmatch->startp[0];
-          if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
-            ptr = find_line_end(ptr);
-          else
-            ptr = find_word_end(ptr);
-          add_r = ins_compl_add_infercase(regmatch->startp[0],
-              (int)(ptr - regmatch->startp[0]),
-              p_ic, files[i], *dir, 0);
-          if (thesaurus) {
-            char_u *wstart;
-
-            /*
-             * Add the other matches on the line
-             */
-            ptr = buf;
-            while (!got_int) {
-              /* Find start of the next word.  Skip white
-               * space and punctuation. */
-              ptr = find_word_start(ptr);
-              if (*ptr == NUL || *ptr == NL)
-                break;
-              wstart = ptr;
-
-              /* Find end of the word. */
-              if (has_mbyte)
-                /* Japanese words may have characters in
-                 * different classes, only separate words
-                 * with single-byte non-word characters. */
-                while (*ptr != NUL) {
-                  int l = (*mb_ptr2len)(ptr);
-
-                  if (l < 2 && !vim_iswordc(*ptr))
-                    break;
-                  ptr += l;
-                }
-              else
-                ptr = find_word_end(ptr);
-
-              /* Add the word. Skip the regexp match. */
-              if (wstart != regmatch->startp[0])
-                add_r = ins_compl_add_infercase(wstart,
-                    (int)(ptr - wstart),
-                    p_ic, files[i], *dir, 0);
-            }
-          }
-          if (add_r == OK)
-            /* if dir was BACKWARD then honor it just once */
-            *dir = FORWARD;
-          else if (add_r == FAIL)
-            break;
-          /* avoid expensive call to vim_regexec() when at end
-           * of line */
-          if (*ptr == '\n' || got_int)
-            break;
-        }
-        line_breakcheck();
-        ins_compl_check_keys(50);
-      }
-      fclose(fp);
-    }
-  }
-}
-
-/*
- * Find the start of the next word.
- * Returns a pointer to the first char of the word.  Also stops at a NUL.
- */
-char_u *find_word_start(char_u *ptr)
-{
-  if (has_mbyte)
-    while (*ptr != NUL && *ptr != '\n' && mb_get_class(ptr) <= 1)
-      ptr += (*mb_ptr2len)(ptr);
-  else
-    while (*ptr != NUL && *ptr != '\n' && !vim_iswordc(*ptr))
-      ++ptr;
-  return ptr;
-}
-
-/*
- * Find the end of the word.  Assumes it starts inside a word.
- * Returns a pointer to just after the word.
- */
-char_u *find_word_end(char_u *ptr)
-{
-  int start_class;
-
-  if (has_mbyte) {
-    start_class = mb_get_class(ptr);
-    if (start_class > 1)
-      while (*ptr != NUL) {
-        ptr += (*mb_ptr2len)(ptr);
-        if (mb_get_class(ptr) != start_class)
-          break;
-      }
-  } else
-    while (vim_iswordc(*ptr))
-      ++ptr;
-  return ptr;
-}
-
-/*
- * Find the end of the line, omitting CR and NL at the end.
- * Returns a pointer to just after the line.
- */
-static char_u *find_line_end(char_u *ptr)
-{
-  char_u      *s;
-
-  s = ptr + STRLEN(ptr);
-  while (s > ptr && (s[-1] == CAR || s[-1] == NL))
-    --s;
-  return s;
-}
-
-/*
- * Free the list of completions
- */
-static void ins_compl_free(void)
-{
-  compl_T *match;
-  int i;
-
-  free(compl_pattern);
-  compl_pattern = NULL;
-  free(compl_leader);
-  compl_leader = NULL;
-
-  if (compl_first_match == NULL)
-    return;
-
-  ins_compl_del_pum();
-  pum_clear();
-
-  compl_curr_match = compl_first_match;
-  do {
-    match = compl_curr_match;
-    compl_curr_match = compl_curr_match->cp_next;
-    free(match->cp_str);
-    /* several entries may use the same fname, free it just once. */
-    if (match->cp_flags & FREE_FNAME)
-      free(match->cp_fname);
-    for (i = 0; i < CPT_COUNT; ++i)
-      free(match->cp_text[i]);
-    free(match);
-  } while (compl_curr_match != NULL && compl_curr_match != compl_first_match);
-  compl_first_match = compl_curr_match = NULL;
-  compl_shown_match = NULL;
-}
-
-static void ins_compl_clear(void)
-{
-  compl_cont_status = 0;
-  compl_started = FALSE;
-  compl_matches = 0;
-  free(compl_pattern);
-  compl_pattern = NULL;
-  free(compl_leader);
-  compl_leader = NULL;
-  edit_submode_extra = NULL;
-  free(compl_orig_text);
-  compl_orig_text = NULL;
-  compl_enter_selects = FALSE;
-}
-
-/*
- * Return TRUE when Insert completion is active.
- */
-int ins_compl_active(void)
-{
-  return compl_started;
-}
-
-/*
- * Delete one character before the cursor and show the subset of the matches
- * that match the word that is now before the cursor.
- * Returns the character to be used, NUL if the work is done and another char
- * to be got from the user.
- */
-static int ins_compl_bs(void)
-{
-  char_u      *line;
-  char_u      *p;
-
-  line = ml_get_curline();
-  p = line + curwin->w_cursor.col;
-  mb_ptr_back(line, p);
-
-  /* Stop completion when the whole word was deleted.  For Omni completion
-   * allow the word to be deleted, we won't match everything. */
-  if ((int)(p - line) - (int)compl_col < 0
-      || ((int)(p - line) - (int)compl_col == 0
-          && (ctrl_x_mode & CTRL_X_OMNI) == 0))
-    return K_BS;
-
-  /* Deleted more than what was used to find matches or didn't finish
-   * finding all matches: need to look for matches all over again. */
-  if (curwin->w_cursor.col <= compl_col + compl_length
-      || ins_compl_need_restart())
-    ins_compl_restart();
-
-  free(compl_leader);
-  compl_leader = vim_strnsave(line + compl_col, (int)(p - line) - compl_col);
-  if (compl_leader != NULL) {
-    ins_compl_new_leader();
-    if (compl_shown_match != NULL)
-      /* Make sure current match is not a hidden item. */
-      compl_curr_match = compl_shown_match;
-    return NUL;
-  }
-  return K_BS;
-}
-
-/*
- * Return TRUE when we need to find matches again, ins_compl_restart() is to
- * be called.
- */
-static int ins_compl_need_restart(void)
-{
-  /* Return TRUE if we didn't complete finding matches or when the
-   * 'completefunc' returned "always" in the "refresh" dictionary item. */
-  return compl_was_interrupted
-         || ((ctrl_x_mode == CTRL_X_FUNCTION || ctrl_x_mode == CTRL_X_OMNI)
-             && compl_opt_refresh_always);
-}
-
-/*
- * Called after changing "compl_leader".
- * Show the popup menu with a different set of matches.
- * May also search for matches again if the previous search was interrupted.
- */
-static void ins_compl_new_leader(void)
-{
-  ins_compl_del_pum();
-  ins_compl_delete();
-  ins_bytes(compl_leader + ins_compl_len());
-  compl_used_match = FALSE;
-
-  if (compl_started)
-    ins_compl_set_original_text(compl_leader);
-  else {
-    spell_bad_len = 0;          /* need to redetect bad word */
-    /*
-     * Matches were cleared, need to search for them now.  First display
-     * the changed text before the cursor.  Set "compl_restarting" to
-     * avoid that the first match is inserted.
-     */
-    update_screen(0);
-    compl_restarting = TRUE;
-    if (ins_complete(Ctrl_N) == FAIL)
-      compl_cont_status = 0;
-    compl_restarting = FALSE;
-  }
-
-  compl_enter_selects = !compl_used_match;
-
-  /* Show the popup menu with a different set of matches. */
-  ins_compl_show_pum();
-
-  /* Don't let Enter select the original text when there is no popup menu. */
-  if (compl_match_array == NULL)
-    compl_enter_selects = FALSE;
-}
-
-/*
- * Return the length of the completion, from the completion start column to
- * the cursor column.  Making sure it never goes below zero.
- */
-static int ins_compl_len(void)
-{
-  int off = (int)curwin->w_cursor.col - (int)compl_col;
-
-  if (off < 0)
-    return 0;
-  return off;
-}
-
-/*
- * Append one character to the match leader.  May reduce the number of
- * matches.
- */
-static void ins_compl_addleader(int c)
-{
-  int cc;
-
-  if (has_mbyte && (cc = (*mb_char2len)(c)) > 1) {
-    char_u buf[MB_MAXBYTES + 1];
-
-    (*mb_char2bytes)(c, buf);
-    buf[cc] = NUL;
-    ins_char_bytes(buf, cc);
-    if (compl_opt_refresh_always)
-      AppendToRedobuff(buf);
-  } else {
-    ins_char(c);
-    if (compl_opt_refresh_always)
-      AppendCharToRedobuff(c);
-  }
-
-  /* If we didn't complete finding matches we must search again. */
-  if (ins_compl_need_restart())
-    ins_compl_restart();
-
-  /* When 'always' is set, don't reset compl_leader. While completing,
-   * cursor doesn't point original position, changing compl_leader would
-   * break redo. */
-  if (!compl_opt_refresh_always) {
-    free(compl_leader);
-    compl_leader = vim_strnsave(ml_get_curline() + compl_col,
-        (int)(curwin->w_cursor.col - compl_col));
-    if (compl_leader != NULL)
-      ins_compl_new_leader();
-  }
-}
-
-/*
- * Setup for finding completions again without leaving CTRL-X mode.  Used when
- * BS or a key was typed while still searching for matches.
- */
-static void ins_compl_restart(void)
-{
-  ins_compl_free();
-  compl_started = FALSE;
-  compl_matches = 0;
-  compl_cont_status = 0;
-  compl_cont_mode = 0;
-}
-
-/*
- * Set the first match, the original text.
- */
-static void ins_compl_set_original_text(char_u *str)
-{
-  char_u      *p;
-
-  /* Replace the original text entry. */
-  if (compl_first_match->cp_flags & ORIGINAL_TEXT) {    /* safety check */
-    p = vim_strsave(str);
-    if (p != NULL) {
-      free(compl_first_match->cp_str);
-      compl_first_match->cp_str = p;
-    }
-  }
-}
-
-/*
- * Append one character to the match leader.  May reduce the number of
- * matches.
- */
-static void ins_compl_addfrommatch(void)
-{
-  char_u      *p;
-  int len = (int)curwin->w_cursor.col - (int)compl_col;
-  int c;
-  compl_T     *cp;
-
-  p = compl_shown_match->cp_str;
-  if ((int)STRLEN(p) <= len) {   /* the match is too short */
-    /* When still at the original match use the first entry that matches
-     * the leader. */
-    if (compl_shown_match->cp_flags & ORIGINAL_TEXT) {
-      p = NULL;
-      for (cp = compl_shown_match->cp_next; cp != NULL
-           && cp != compl_first_match; cp = cp->cp_next) {
-        if (compl_leader == NULL
-            || ins_compl_equal(cp, compl_leader,
-                (int)STRLEN(compl_leader))) {
-          p = cp->cp_str;
-          break;
-        }
-      }
-      if (p == NULL || (int)STRLEN(p) <= len)
-        return;
-    } else
-      return;
-  }
-  p += len;
-  c = PTR2CHAR(p);
-  ins_compl_addleader(c);
-}
-
-/*
- * Prepare for Insert mode completion, or stop it.
- * Called just after typing a character in Insert mode.
- * Returns TRUE when the character is not to be inserted;
- */
-static int ins_compl_prep(int c)
-{
-  char_u      *ptr;
-  int want_cindent;
-  int retval = FALSE;
-
-  /* Forget any previous 'special' messages if this is actually
-   * a ^X mode key - bar ^R, in which case we wait to see what it gives us.
-   */
-  if (c != Ctrl_R && vim_is_ctrl_x_key(c))
-    edit_submode_extra = NULL;
-
-  /* Ignore end of Select mode mapping and mouse scroll buttons. */
-  if (c == K_SELECT || c == K_MOUSEDOWN || c == K_MOUSEUP
-      || c == K_MOUSELEFT || c == K_MOUSERIGHT)
-    return retval;
-
-  /* Set "compl_get_longest" when finding the first matches. */
-  if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET
-      || (ctrl_x_mode == 0 && !compl_started)) {
-    compl_get_longest = (vim_strchr(p_cot, 'l') != NULL);
-    compl_used_match = TRUE;
-  }
-
-  if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET) {
-    /*
-     * We have just typed CTRL-X and aren't quite sure which CTRL-X mode
-     * it will be yet.  Now we decide.
-     */
-    switch (c) {
-    case Ctrl_E:
-    case Ctrl_Y:
-      ctrl_x_mode = CTRL_X_SCROLL;
-      if (!(State & REPLACE_FLAG))
-        edit_submode = (char_u *)_(" (insert) Scroll (^E/^Y)");
-      else
-        edit_submode = (char_u *)_(" (replace) Scroll (^E/^Y)");
-      edit_submode_pre = NULL;
-      showmode();
-      break;
-    case Ctrl_L:
-      ctrl_x_mode = CTRL_X_WHOLE_LINE;
-      break;
-    case Ctrl_F:
-      ctrl_x_mode = CTRL_X_FILES;
-      break;
-    case Ctrl_K:
-      ctrl_x_mode = CTRL_X_DICTIONARY;
-      break;
-    case Ctrl_R:
-      /* Simply allow ^R to happen without affecting ^X mode */
-      break;
-    case Ctrl_T:
-      ctrl_x_mode = CTRL_X_THESAURUS;
-      break;
-    case Ctrl_U:
-      ctrl_x_mode = CTRL_X_FUNCTION;
-      break;
-    case Ctrl_O:
-      ctrl_x_mode = CTRL_X_OMNI;
-      break;
-    case 's':
-    case Ctrl_S:
-      ctrl_x_mode = CTRL_X_SPELL;
-      ++emsg_off;               /* Avoid getting the E756 error twice. */
-      spell_back_to_badword();
-      --emsg_off;
-      break;
-    case Ctrl_RSB:
-      ctrl_x_mode = CTRL_X_TAGS;
-      break;
-    case Ctrl_I:
-    case K_S_TAB:
-      ctrl_x_mode = CTRL_X_PATH_PATTERNS;
-      break;
-    case Ctrl_D:
-      ctrl_x_mode = CTRL_X_PATH_DEFINES;
-      break;
-    case Ctrl_V:
-    case Ctrl_Q:
-      ctrl_x_mode = CTRL_X_CMDLINE;
-      break;
-    case Ctrl_P:
-    case Ctrl_N:
-      /* ^X^P means LOCAL expansion if nothing interrupted (eg we
-       * just started ^X mode, or there were enough ^X's to cancel
-       * the previous mode, say ^X^F^X^X^P or ^P^X^X^X^P, see below)
-       * do normal expansion when interrupting a different mode (say
-       * ^X^F^X^P or ^P^X^X^P, see below)
-       * nothing changes if interrupting mode 0, (eg, the flag
-       * doesn't change when going to ADDING mode  -- Acevedo */
-      if (!(compl_cont_status & CONT_INTRPT))
-        compl_cont_status |= CONT_LOCAL;
-      else if (compl_cont_mode != 0)
-        compl_cont_status &= ~CONT_LOCAL;
-    /* FALLTHROUGH */
-    default:
-      /* If we have typed at least 2 ^X's... for modes != 0, we set
-       * compl_cont_status = 0 (eg, as if we had just started ^X
-       * mode).
-       * For mode 0, we set "compl_cont_mode" to an impossible
-       * value, in both cases ^X^X can be used to restart the same
-       * mode (avoiding ADDING mode).
-       * Undocumented feature: In a mode != 0 ^X^P and ^X^X^P start
-       * 'complete' and local ^P expansions respectively.
-       * In mode 0 an extra ^X is needed since ^X^P goes to ADDING
-       * mode  -- Acevedo */
-      if (c == Ctrl_X) {
-        if (compl_cont_mode != 0)
-          compl_cont_status = 0;
-        else
-          compl_cont_mode = CTRL_X_NOT_DEFINED_YET;
-      }
-      ctrl_x_mode = 0;
-      edit_submode = NULL;
-      showmode();
-      break;
-    }
-  } else if (ctrl_x_mode != 0) {
-    /* We're already in CTRL-X mode, do we stay in it? */
-    if (!vim_is_ctrl_x_key(c)) {
-      if (ctrl_x_mode == CTRL_X_SCROLL)
-        ctrl_x_mode = 0;
-      else
-        ctrl_x_mode = CTRL_X_FINISHED;
-      edit_submode = NULL;
-    }
-    showmode();
-  }
-
-  if (compl_started || ctrl_x_mode == CTRL_X_FINISHED) {
-    /* Show error message from attempted keyword completion (probably
-     * 'Pattern not found') until another key is hit, then go back to
-     * showing what mode we are in. */
-    showmode();
-    if ((ctrl_x_mode == 0 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_R
-         && !ins_compl_pum_key(c))
-        || ctrl_x_mode == CTRL_X_FINISHED) {
-      /* Get here when we have finished typing a sequence of ^N and
-       * ^P or other completion characters in CTRL-X mode.  Free up
-       * memory that was used, and make sure we can redo the insert. */
-      if (compl_curr_match != NULL || compl_leader != NULL || c == Ctrl_E) {
-        /*
-         * If any of the original typed text has been changed, eg when
-         * ignorecase is set, we must add back-spaces to the redo
-         * buffer.  We add as few as necessary to delete just the part
-         * of the original text that has changed.
-         * When using the longest match, edited the match or used
-         * CTRL-E then don't use the current match.
-         */
-        if (compl_curr_match != NULL && compl_used_match && c != Ctrl_E)
-          ptr = compl_curr_match->cp_str;
-        else
-          ptr = NULL;
-        ins_compl_fixRedoBufForLeader(ptr);
-      }
-
-      want_cindent = (can_cindent && cindent_on());
-      /*
-       * When completing whole lines: fix indent for 'cindent'.
-       * Otherwise, break line if it's too long.
-       */
-      if (compl_cont_mode == CTRL_X_WHOLE_LINE) {
-        /* re-indent the current line */
-        if (want_cindent) {
-          do_c_expr_indent();
-          want_cindent = FALSE;                 /* don't do it again */
-        }
-      } else {
-        int prev_col = curwin->w_cursor.col;
-
-        /* put the cursor on the last char, for 'tw' formatting */
-        if (prev_col > 0)
-          dec_cursor();
-        if (stop_arrow() == OK)
-          insertchar(NUL, 0, -1);
-        if (prev_col > 0
-            && ml_get_curline()[curwin->w_cursor.col] != NUL)
-          inc_cursor();
-      }
-
-      /* If the popup menu is displayed pressing CTRL-Y means accepting
-       * the selection without inserting anything.  When
-       * compl_enter_selects is set the Enter key does the same. */
-      if ((c == Ctrl_Y || (compl_enter_selects
-                           && (c == CAR || c == K_KENTER || c == NL)))
-          && pum_visible())
-        retval = TRUE;
-
-      /* CTRL-E means completion is Ended, go back to the typed text. */
-      if (c == Ctrl_E) {
-        ins_compl_delete();
-        if (compl_leader != NULL)
-          ins_bytes(compl_leader + ins_compl_len());
-        else if (compl_first_match != NULL)
-          ins_bytes(compl_orig_text + ins_compl_len());
-        retval = TRUE;
-      }
-
-      auto_format(FALSE, TRUE);
-
-      ins_compl_free();
-      compl_started = FALSE;
-      compl_matches = 0;
-      msg_clr_cmdline();                /* necessary for "noshowmode" */
-      ctrl_x_mode = 0;
-      compl_enter_selects = FALSE;
-      if (edit_submode != NULL) {
-        edit_submode = NULL;
-        showmode();
-      }
-
-      /*
-       * Indent now if a key was typed that is in 'cinkeys'.
-       */
-      if (want_cindent && in_cinkeys(KEY_COMPLETE, ' ', inindent(0)))
-        do_c_expr_indent();
-      /* Trigger the CompleteDone event to give scripts a chance to act
-       * upon the completion. */
-      apply_autocmds(EVENT_COMPLETEDONE, NULL, NULL, FALSE, curbuf);
-    }
-  } else if (ctrl_x_mode == CTRL_X_LOCAL_MSG)
-    /* Trigger the CompleteDone event to give scripts a chance to act
-     * upon the (possibly failed) completion. */
-    apply_autocmds(EVENT_COMPLETEDONE, NULL, NULL, FALSE, curbuf);
-
-  /* reset continue_* if we left expansion-mode, if we stay they'll be
-   * (re)set properly in ins_complete() */
-  if (!vim_is_ctrl_x_key(c)) {
-    compl_cont_status = 0;
-    compl_cont_mode = 0;
-  }
-
-  return retval;
-}
-
-/*
- * Fix the redo buffer for the completion leader replacing some of the typed
- * text.  This inserts backspaces and appends the changed text.
- * "ptr" is the known leader text or NUL.
- */
-static void ins_compl_fixRedoBufForLeader(char_u *ptr_arg)
-{
-  int len;
-  char_u  *p;
-  char_u  *ptr = ptr_arg;
-
-  if (ptr == NULL) {
-    if (compl_leader != NULL)
-      ptr = compl_leader;
-    else
-      return;        /* nothing to do */
-  }
-  if (compl_orig_text != NULL) {
-    p = compl_orig_text;
-    for (len = 0; p[len] != NUL && p[len] == ptr[len]; ++len)
-      ;
-    if (len > 0)
-      len -= (*mb_head_off)(p, p + len);
-    for (p += len; *p != NUL; mb_ptr_adv(p))
-      AppendCharToRedobuff(K_BS);
-  } else
-    len = 0;
-  if (ptr != NULL)
-    AppendToRedobuffLit(ptr + len, -1);
-}
-
-/*
- * Loops through the list of windows, loaded-buffers or non-loaded-buffers
- * (depending on flag) starting from buf and looking for a non-scanned
- * buffer (other than curbuf).	curbuf is special, if it is called with
- * buf=curbuf then it has to be the first call for a given flag/expansion.
- *
- * Returns the buffer to scan, if any, otherwise returns curbuf -- Acevedo
- */
-static buf_T *ins_compl_next_buf(buf_T *buf, int flag)
-{
-  static win_T *wp;
-
-  if (flag == 'w') {            /* just windows */
-    if (buf == curbuf)          /* first call for this flag/expansion */
-      wp = curwin;
-    while ((wp = (wp->w_next != NULL ? wp->w_next : firstwin)) != curwin
-           && wp->w_buffer->b_scanned)
-      ;
-    buf = wp->w_buffer;
-  } else
-    /* 'b' (just loaded buffers), 'u' (just non-loaded buffers) or 'U'
-     * (unlisted buffers)
-     * When completing whole lines skip unloaded buffers. */
-    while ((buf = (buf->b_next != NULL ? buf->b_next : firstbuf)) != curbuf
-           && ((flag == 'U'
-                ? buf->b_p_bl
-                : (!buf->b_p_bl
-                   || (buf->b_ml.ml_mfp == NULL) != (flag == 'u')))
-               || buf->b_scanned))
-      ;
-  return buf;
-}
-
-static void expand_by_function(int type, char_u *base);
-
-/*
- * Execute user defined complete function 'completefunc' or 'omnifunc', and
- * get matches in "matches".
- */
-static void 
-expand_by_function (
-    int type,                   /* CTRL_X_OMNI or CTRL_X_FUNCTION */
-    char_u *base
-)
-{
-  list_T      *matchlist = NULL;
-  dict_T      *matchdict = NULL;
-  char_u      *args[2];
-  char_u      *funcname;
-  pos_T pos;
-  win_T       *curwin_save;
-  buf_T       *curbuf_save;
-  typval_T rettv;
-
-  funcname = (type == CTRL_X_FUNCTION) ? curbuf->b_p_cfu : curbuf->b_p_ofu;
-  if (*funcname == NUL)
-    return;
-
-  /* Call 'completefunc' to obtain the list of matches. */
-  args[0] = (char_u *)"0";
-  args[1] = base;
-
-  pos = curwin->w_cursor;
-  curwin_save = curwin;
-  curbuf_save = curbuf;
-
-  /* Call a function, which returns a list or dict. */
-  if (call_vim_function(funcname, 2, args, FALSE, FALSE, &rettv) == OK) {
-    switch (rettv.v_type) {
-    case VAR_LIST:
-      matchlist = rettv.vval.v_list;
-      break;
-    case VAR_DICT:
-      matchdict = rettv.vval.v_dict;
-      break;
-    default:
-      /* TODO: Give error message? */
-      clear_tv(&rettv);
-      break;
-    }
-  }
-
-  if (curwin_save != curwin || curbuf_save != curbuf) {
-    EMSG(_(e_complwin));
-    goto theend;
-  }
-  curwin->w_cursor = pos;       /* restore the cursor position */
-  check_cursor();
-  if (!equalpos(curwin->w_cursor, pos)) {
-    EMSG(_(e_compldel));
-    goto theend;
-  }
-
-  if (matchlist != NULL)
-    ins_compl_add_list(matchlist);
-  else if (matchdict != NULL)
-    ins_compl_add_dict(matchdict);
-
-theend:
-  if (matchdict != NULL)
-    dict_unref(matchdict);
-  if (matchlist != NULL)
-    list_unref(matchlist);
-}
-
-/*
- * Add completions from a list.
- */
-static void ins_compl_add_list(list_T *list)
-{
-  listitem_T  *li;
-  int dir = compl_direction;
-
-  /* Go through the List with matches and add each of them. */
-  for (li = list->lv_first; li != NULL; li = li->li_next) {
-    if (ins_compl_add_tv(&li->li_tv, dir) == OK)
-      /* if dir was BACKWARD then honor it just once */
-      dir = FORWARD;
-    else if (did_emsg)
-      break;
-  }
-}
-
-/*
- * Add completions from a dict.
- */
-static void ins_compl_add_dict(dict_T *dict)
-{
-  dictitem_T  *di_refresh;
-  dictitem_T  *di_words;
-
-  /* Check for optional "refresh" item. */
-  compl_opt_refresh_always = FALSE;
-  di_refresh = dict_find(dict, (char_u *)"refresh", 7);
-  if (di_refresh != NULL && di_refresh->di_tv.v_type == VAR_STRING) {
-    char_u  *v = di_refresh->di_tv.vval.v_string;
-
-    if (v != NULL && STRCMP(v, (char_u *)"always") == 0)
-      compl_opt_refresh_always = TRUE;
-  }
-
-  /* Add completions from a "words" list. */
-  di_words = dict_find(dict, (char_u *)"words", 5);
-  if (di_words != NULL && di_words->di_tv.v_type == VAR_LIST)
-    ins_compl_add_list(di_words->di_tv.vval.v_list);
-}
-
-/*
- * Add a match to the list of matches from a typeval_T.
- * If the given string is already in the list of completions, then return
- * NOTDONE, otherwise add it to the list and return OK.  If there is an error
- * then FAIL is returned.
- */
-int ins_compl_add_tv(typval_T *tv, int dir)
-{
-  char_u      *word;
-  int icase = FALSE;
-  int adup = FALSE;
-  int aempty = FALSE;
-  char_u      *(cptext[CPT_COUNT]);
-
-  if (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL) {
-    word = get_dict_string(tv->vval.v_dict, (char_u *)"word", FALSE);
-    cptext[CPT_ABBR] = get_dict_string(tv->vval.v_dict,
-        (char_u *)"abbr", FALSE);
-    cptext[CPT_MENU] = get_dict_string(tv->vval.v_dict,
-        (char_u *)"menu", FALSE);
-    cptext[CPT_KIND] = get_dict_string(tv->vval.v_dict,
-        (char_u *)"kind", FALSE);
-    cptext[CPT_INFO] = get_dict_string(tv->vval.v_dict,
-        (char_u *)"info", FALSE);
-    if (get_dict_string(tv->vval.v_dict, (char_u *)"icase", FALSE) != NULL)
-      icase = get_dict_number(tv->vval.v_dict, (char_u *)"icase");
-    if (get_dict_string(tv->vval.v_dict, (char_u *)"dup", FALSE) != NULL)
-      adup = get_dict_number(tv->vval.v_dict, (char_u *)"dup");
-    if (get_dict_string(tv->vval.v_dict, (char_u *)"empty", FALSE) != NULL)
-      aempty = get_dict_number(tv->vval.v_dict, (char_u *)"empty");
-  } else {
-    word = get_tv_string_chk(tv);
-    memset(cptext, 0, sizeof(cptext));
-  }
-  if (word == NULL || (!aempty && *word == NUL))
-    return FAIL;
-  return ins_compl_add(word, -1, icase, NULL, cptext, dir, 0, adup);
-}
-
-/*
- * Get the next expansion(s), using "compl_pattern".
- * The search starts at position "ini" in curbuf and in the direction
- * compl_direction.
- * When "compl_started" is FALSE start at that position, otherwise continue
- * where we stopped searching before.
- * This may return before finding all the matches.
- * Return the total number of matches or -1 if still unknown -- Acevedo
- */
-static int ins_compl_get_exp(pos_T *ini)
-{
-  static pos_T first_match_pos;
-  static pos_T last_match_pos;
-  static char_u       *e_cpt = (char_u *)"";    /* curr. entry in 'complete' */
-  static int found_all = FALSE;                 /* Found all matches of a
-                                                   certain type. */
-  static buf_T        *ins_buf = NULL;          /* buffer being scanned */
-
-  pos_T       *pos;
-  char_u      **matches;
-  int save_p_scs;
-  int save_p_ws;
-  int save_p_ic;
-  int i;
-  int num_matches;
-  int len;
-  int found_new_match;
-  int type = ctrl_x_mode;
-  char_u      *ptr;
-  char_u      *dict = NULL;
-  int dict_f = 0;
-  compl_T     *old_match;
-  int set_match_pos;
-
-  if (!compl_started) {
-    for (ins_buf = firstbuf; ins_buf != NULL; ins_buf = ins_buf->b_next)
-      ins_buf->b_scanned = 0;
-    found_all = FALSE;
-    ins_buf = curbuf;
-    e_cpt = (compl_cont_status & CONT_LOCAL)
-            ? (char_u *)"." : curbuf->b_p_cpt;
-    last_match_pos = first_match_pos = *ini;
-  }
-
-  old_match = compl_curr_match;         /* remember the last current match */
-  pos = (compl_direction == FORWARD) ? &last_match_pos : &first_match_pos;
-  /* For ^N/^P loop over all the flags/windows/buffers in 'complete' */
-  for (;; ) {
-    found_new_match = FAIL;
-    set_match_pos = FALSE;
-
-    /* For ^N/^P pick a new entry from e_cpt if compl_started is off,
-     * or if found_all says this entry is done.  For ^X^L only use the
-     * entries from 'complete' that look in loaded buffers. */
-    if ((ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_WHOLE_LINE)
-        && (!compl_started || found_all)) {
-      found_all = FALSE;
-      while (*e_cpt == ',' || *e_cpt == ' ')
-        e_cpt++;
-      if (*e_cpt == '.' && !curbuf->b_scanned) {
-        ins_buf = curbuf;
-        first_match_pos = *ini;
-        /* So that ^N can match word immediately after cursor */
-        if (ctrl_x_mode == 0)
-          dec(&first_match_pos);
-        last_match_pos = first_match_pos;
-        type = 0;
-
-        /* Remember the first match so that the loop stops when we
-         * wrap and come back there a second time. */
-        set_match_pos = TRUE;
-      } else if (vim_strchr((char_u *)"buwU", *e_cpt) != NULL
-                 && (ins_buf =
-                       ins_compl_next_buf(ins_buf, *e_cpt)) != curbuf) {
-        /* Scan a buffer, but not the current one. */
-        if (ins_buf->b_ml.ml_mfp != NULL) {         /* loaded buffer */
-          compl_started = TRUE;
-          first_match_pos.col = last_match_pos.col = 0;
-          first_match_pos.lnum = ins_buf->b_ml.ml_line_count + 1;
-          last_match_pos.lnum = 0;
-          type = 0;
-        } else {      /* unloaded buffer, scan like dictionary */
-          found_all = TRUE;
-          if (ins_buf->b_fname == NULL)
-            continue;
-          type = CTRL_X_DICTIONARY;
-          dict = ins_buf->b_fname;
-          dict_f = DICT_EXACT;
-        }
-        vim_snprintf((char *)IObuff, IOSIZE, _("Scanning: %s"),
-            ins_buf->b_fname == NULL
-            ? buf_spname(ins_buf)
-            : ins_buf->b_sfname == NULL
-            ? ins_buf->b_fname
-            : ins_buf->b_sfname);
-        (void)msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
-      } else if (*e_cpt == NUL)
-        break;
-      else {
-        if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
-          type = -1;
-        else if (*e_cpt == 'k' || *e_cpt == 's') {
-          if (*e_cpt == 'k')
-            type = CTRL_X_DICTIONARY;
-          else
-            type = CTRL_X_THESAURUS;
-          if (*++e_cpt != ',' && *e_cpt != NUL) {
-            dict = e_cpt;
-            dict_f = DICT_FIRST;
-          }
-        } else if (*e_cpt == 'i')
-          type = CTRL_X_PATH_PATTERNS;
-        else if (*e_cpt == 'd')
-          type = CTRL_X_PATH_DEFINES;
-        else if (*e_cpt == ']' || *e_cpt == 't') {
-          type = CTRL_X_TAGS;
-          vim_snprintf((char *)IObuff, IOSIZE, _("Scanning tags."));
-          (void)msg_trunc_attr(IObuff, TRUE, hl_attr(HLF_R));
-        } else
-          type = -1;
-
-        /* in any case e_cpt is advanced to the next entry */
-        (void)copy_option_part(&e_cpt, IObuff, IOSIZE, ",");
-
-        found_all = TRUE;
-        if (type == -1)
-          continue;
-      }
-    }
-
-    switch (type) {
-    case -1:
-      break;
-    case CTRL_X_PATH_PATTERNS:
-    case CTRL_X_PATH_DEFINES:
-      find_pattern_in_path(compl_pattern, compl_direction,
-          (int)STRLEN(compl_pattern), FALSE, FALSE,
-          (type == CTRL_X_PATH_DEFINES
-           && !(compl_cont_status & CONT_SOL))
-          ? FIND_DEFINE : FIND_ANY, 1L, ACTION_EXPAND,
-          (linenr_T)1, (linenr_T)MAXLNUM);
-      break;
-
-    case CTRL_X_DICTIONARY:
-    case CTRL_X_THESAURUS:
-      ins_compl_dictionaries(
-          dict != NULL ? dict
-          : (type == CTRL_X_THESAURUS
-             ? (*curbuf->b_p_tsr == NUL
-                ? p_tsr
-                : curbuf->b_p_tsr)
-             : (*curbuf->b_p_dict == NUL
-                ? p_dict
-                : curbuf->b_p_dict)),
-          compl_pattern,
-          dict != NULL ? dict_f
-          : 0, type == CTRL_X_THESAURUS);
-      dict = NULL;
-      break;
-
-    case CTRL_X_TAGS:
-      /* set p_ic according to p_ic, p_scs and pat for find_tags(). */
-      save_p_ic = p_ic;
-      p_ic = ignorecase(compl_pattern);
-
-      /* Find up to TAG_MANY matches.  Avoids that an enormous number
-       * of matches is found when compl_pattern is empty */
-      if (find_tags(compl_pattern, &num_matches, &matches,
-              TAG_REGEXP | TAG_NAMES | TAG_NOIC |
-              TAG_INS_COMP | (ctrl_x_mode ? TAG_VERBOSE : 0),
-              TAG_MANY, curbuf->b_ffname) == OK && num_matches > 0) {
-        ins_compl_add_matches(num_matches, matches, p_ic);
-      }
-      p_ic = save_p_ic;
-      break;
-
-    case CTRL_X_FILES:
-      if (expand_wildcards(1, &compl_pattern, &num_matches, &matches,
-              EW_FILE|EW_DIR|EW_ADDSLASH|EW_SILENT) == OK) {
-
-        /* May change home directory back to "~". */
-        tilde_replace(compl_pattern, num_matches, matches);
-        ins_compl_add_matches(num_matches, matches, p_fic || p_wic);
-      }
-      break;
-
-    case CTRL_X_CMDLINE:
-      if (expand_cmdline(&compl_xp, compl_pattern,
-              (int)STRLEN(compl_pattern),
-              &num_matches, &matches) == EXPAND_OK)
-        ins_compl_add_matches(num_matches, matches, FALSE);
-      break;
-
-    case CTRL_X_FUNCTION:
-    case CTRL_X_OMNI:
-      expand_by_function(type, compl_pattern);
-      break;
-
-    case CTRL_X_SPELL:
-      num_matches = expand_spelling(first_match_pos.lnum,
-          compl_pattern, &matches);
-      if (num_matches > 0)
-        ins_compl_add_matches(num_matches, matches, p_ic);
-      break;
-
-    default:            /* normal ^P/^N and ^X^L */
-      /*
-       * If 'infercase' is set, don't use 'smartcase' here
-       */
-      save_p_scs = p_scs;
-      if (ins_buf->b_p_inf)
-        p_scs = FALSE;
-
-      /*	Buffers other than curbuf are scanned from the beginning or the
-       *	end but never from the middle, thus setting nowrapscan in this
-       *	buffers is a good idea, on the other hand, we always set
-       *	wrapscan for curbuf to avoid missing matches -- Acevedo,Webb */
-      save_p_ws = p_ws;
-      if (ins_buf != curbuf)
-        p_ws = FALSE;
-      else if (*e_cpt == '.')
-        p_ws = TRUE;
-      for (;; ) {
-        int flags = 0;
-
-        ++msg_silent;          /* Don't want messages for wrapscan. */
-
-        /* ctrl_x_mode == CTRL_X_WHOLE_LINE || word-wise search that
-         * has added a word that was at the beginning of the line */
-        if (    ctrl_x_mode == CTRL_X_WHOLE_LINE
-                || (compl_cont_status & CONT_SOL))
-          found_new_match = search_for_exact_line(ins_buf, pos,
-              compl_direction, compl_pattern);
-        else
-          found_new_match = searchit(NULL, ins_buf, pos,
-              compl_direction,
-              compl_pattern, 1L, SEARCH_KEEP + SEARCH_NFMSG,
-              RE_LAST, (linenr_T)0, NULL);
-        --msg_silent;
-        if (!compl_started || set_match_pos) {
-          /* set "compl_started" even on fail */
-          compl_started = TRUE;
-          first_match_pos = *pos;
-          last_match_pos = *pos;
-          set_match_pos = FALSE;
-        } else if (first_match_pos.lnum == last_match_pos.lnum
-                   && first_match_pos.col == last_match_pos.col)
-          found_new_match = FAIL;
-        if (found_new_match == FAIL) {
-          if (ins_buf == curbuf)
-            found_all = TRUE;
-          break;
-        }
-
-        /* when ADDING, the text before the cursor matches, skip it */
-        if (    (compl_cont_status & CONT_ADDING) && ins_buf == curbuf
-                && ini->lnum == pos->lnum
-                && ini->col  == pos->col)
-          continue;
-        ptr = ml_get_buf(ins_buf, pos->lnum, FALSE) + pos->col;
-        if (ctrl_x_mode == CTRL_X_WHOLE_LINE) {
-          if (compl_cont_status & CONT_ADDING) {
-            if (pos->lnum >= ins_buf->b_ml.ml_line_count)
-              continue;
-            ptr = ml_get_buf(ins_buf, pos->lnum + 1, FALSE);
-            if (!p_paste)
-              ptr = skipwhite(ptr);
-          }
-          len = (int)STRLEN(ptr);
-        } else {
-          char_u      *tmp_ptr = ptr;
-
-          if (compl_cont_status & CONT_ADDING) {
-            tmp_ptr += compl_length;
-            /* Skip if already inside a word. */
-            if (vim_iswordp(tmp_ptr))
-              continue;
-            /* Find start of next word. */
-            tmp_ptr = find_word_start(tmp_ptr);
-          }
-          /* Find end of this word. */
-          tmp_ptr = find_word_end(tmp_ptr);
-          len = (int)(tmp_ptr - ptr);
-
-          if ((compl_cont_status & CONT_ADDING)
-              && len == compl_length) {
-            if (pos->lnum < ins_buf->b_ml.ml_line_count) {
-              /* Try next line, if any. the new word will be
-               * "join" as if the normal command "J" was used.
-               * IOSIZE is always greater than
-               * compl_length, so the next STRNCPY always
-               * works -- Acevedo */
-              STRNCPY(IObuff, ptr, len);
-              ptr = ml_get_buf(ins_buf, pos->lnum + 1, FALSE);
-              tmp_ptr = ptr = skipwhite(ptr);
-              /* Find start of next word. */
-              tmp_ptr = find_word_start(tmp_ptr);
-              /* Find end of next word. */
-              tmp_ptr = find_word_end(tmp_ptr);
-              if (tmp_ptr > ptr) {
-                if (*ptr != ')' && IObuff[len - 1] != TAB) {
-                  if (IObuff[len - 1] != ' ')
-                    IObuff[len++] = ' ';
-                  /* IObuf =~ "\k.* ", thus len >= 2 */
-                  if (p_js
-                      && (IObuff[len - 2] == '.'
-                          || (vim_strchr(p_cpo, CPO_JOINSP)
-                              == NULL
-                              && (IObuff[len - 2] == '?'
-                                  || IObuff[len - 2] == '!'))))
-                    IObuff[len++] = ' ';
-                }
-                /* copy as much as possible of the new word */
-                if (tmp_ptr - ptr >= IOSIZE - len)
-                  tmp_ptr = ptr + IOSIZE - len - 1;
-                STRNCPY(IObuff + len, ptr, tmp_ptr - ptr);
-                len += (int)(tmp_ptr - ptr);
-                flags |= CONT_S_IPOS;
-              }
-              IObuff[len] = NUL;
-              ptr = IObuff;
-            }
-            if (len == compl_length)
-              continue;
-          }
-        }
-        if (ins_compl_add_infercase(ptr, len, p_ic,
-                ins_buf == curbuf ? NULL : ins_buf->b_sfname,
-                0, flags) != NOTDONE) {
-          found_new_match = OK;
-          break;
-        }
-      }
-      p_scs = save_p_scs;
-      p_ws = save_p_ws;
-    }
-
-    /* check if compl_curr_match has changed, (e.g. other type of
-     * expansion added something) */
-    if (type != 0 && compl_curr_match != old_match)
-      found_new_match = OK;
-
-    /* break the loop for specialized modes (use 'complete' just for the
-     * generic ctrl_x_mode == 0) or when we've found a new match */
-    if ((ctrl_x_mode != 0 && ctrl_x_mode != CTRL_X_WHOLE_LINE)
-        || found_new_match != FAIL) {
-      if (got_int)
-        break;
-      /* Fill the popup menu as soon as possible. */
-      if (type != -1)
-        ins_compl_check_keys(0);
-
-      if ((ctrl_x_mode != 0 && ctrl_x_mode != CTRL_X_WHOLE_LINE)
-          || compl_interrupted)
-        break;
-      compl_started = TRUE;
-    } else {
-      /* Mark a buffer scanned when it has been scanned completely */
-      if (type == 0 || type == CTRL_X_PATH_PATTERNS)
-        ins_buf->b_scanned = TRUE;
-
-      compl_started = FALSE;
-    }
-  }
-  compl_started = TRUE;
-
-  if ((ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_WHOLE_LINE)
-      && *e_cpt == NUL)                 /* Got to end of 'complete' */
-    found_new_match = FAIL;
-
-  i = -1;               /* total of matches, unknown */
-  if (found_new_match == FAIL
-      || (ctrl_x_mode != 0 && ctrl_x_mode != CTRL_X_WHOLE_LINE))
-    i = ins_compl_make_cyclic();
-
-  /* If several matches were added (FORWARD) or the search failed and has
-   * just been made cyclic then we have to move compl_curr_match to the next
-   * or previous entry (if any) -- Acevedo */
-  compl_curr_match = compl_direction == FORWARD ? old_match->cp_next
-                     : old_match->cp_prev;
-  if (compl_curr_match == NULL)
-    compl_curr_match = old_match;
-  return i;
-}
-
-/* Delete the old text being completed. */
-static void ins_compl_delete(void)
-{
-  int i;
-
-  /*
-   * In insert mode: Delete the typed part.
-   * In replace mode: Put the old characters back, if any.
-   */
-  i = compl_col + (compl_cont_status & CONT_ADDING ? compl_length : 0);
-  backspace_until_column(i);
-  changed_cline_bef_curs();
-}
-
-/* Insert the new text being completed. */
-static void ins_compl_insert(void)
-{
-  ins_bytes(compl_shown_match->cp_str + ins_compl_len());
-  if (compl_shown_match->cp_flags & ORIGINAL_TEXT)
-    compl_used_match = FALSE;
-  else
-    compl_used_match = TRUE;
-}
-
-/*
- * Fill in the next completion in the current direction.
- * If "allow_get_expansion" is TRUE, then we may call ins_compl_get_exp() to
- * get more completions.  If it is FALSE, then we just do nothing when there
- * are no more completions in a given direction.  The latter case is used when
- * we are still in the middle of finding completions, to allow browsing
- * through the ones found so far.
- * Return the total number of matches, or -1 if still unknown -- webb.
- *
- * compl_curr_match is currently being used by ins_compl_get_exp(), so we use
- * compl_shown_match here.
- *
- * Note that this function may be called recursively once only.  First with
- * "allow_get_expansion" TRUE, which calls ins_compl_get_exp(), which in turn
- * calls this function with "allow_get_expansion" FALSE.
- */
-static int 
-ins_compl_next (
-    int allow_get_expansion,
-    int count,                      /* repeat completion this many times; should
-                                   be at least 1 */
-    int insert_match               /* Insert the newly selected match */
-)
-{
-  int num_matches = -1;
-  int i;
-  int todo = count;
-  compl_T *found_compl = NULL;
-  int found_end = FALSE;
-  int advance;
-
-  /* When user complete function return -1 for findstart which is next
-   * time of 'always', compl_shown_match become NULL. */
-  if (compl_shown_match == NULL)
-    return -1;
-
-  if (compl_leader != NULL
-      && (compl_shown_match->cp_flags & ORIGINAL_TEXT) == 0) {
-    /* Set "compl_shown_match" to the actually shown match, it may differ
-     * when "compl_leader" is used to omit some of the matches. */
-    while (!ins_compl_equal(compl_shown_match,
-               compl_leader, (int)STRLEN(compl_leader))
-           && compl_shown_match->cp_next != NULL
-           && compl_shown_match->cp_next != compl_first_match)
-      compl_shown_match = compl_shown_match->cp_next;
-
-    /* If we didn't find it searching forward, and compl_shows_dir is
-     * backward, find the last match. */
-    if (compl_shows_dir == BACKWARD
-        && !ins_compl_equal(compl_shown_match,
-            compl_leader, (int)STRLEN(compl_leader))
-        && (compl_shown_match->cp_next == NULL
-            || compl_shown_match->cp_next == compl_first_match)) {
-      while (!ins_compl_equal(compl_shown_match,
-                 compl_leader, (int)STRLEN(compl_leader))
-             && compl_shown_match->cp_prev != NULL
-             && compl_shown_match->cp_prev != compl_first_match)
-        compl_shown_match = compl_shown_match->cp_prev;
-    }
-  }
-
-  if (allow_get_expansion && insert_match
-      && (!(compl_get_longest || compl_restarting) || compl_used_match))
-    /* Delete old text to be replaced */
-    ins_compl_delete();
-
-  /* When finding the longest common text we stick at the original text,
-   * don't let CTRL-N or CTRL-P move to the first match. */
-  advance = count != 1 || !allow_get_expansion || !compl_get_longest;
-
-  /* When restarting the search don't insert the first match either. */
-  if (compl_restarting) {
-    advance = FALSE;
-    compl_restarting = FALSE;
-  }
-
-  /* Repeat this for when <PageUp> or <PageDown> is typed.  But don't wrap
-   * around. */
-  while (--todo >= 0) {
-    if (compl_shows_dir == FORWARD && compl_shown_match->cp_next != NULL) {
-      compl_shown_match = compl_shown_match->cp_next;
-      found_end = (compl_first_match != NULL
-                   && (compl_shown_match->cp_next == compl_first_match
-                       || compl_shown_match == compl_first_match));
-    } else if (compl_shows_dir == BACKWARD
-               && compl_shown_match->cp_prev != NULL) {
-      found_end = (compl_shown_match == compl_first_match);
-      compl_shown_match = compl_shown_match->cp_prev;
-      found_end |= (compl_shown_match == compl_first_match);
-    } else {
-      if (!allow_get_expansion) {
-        if (advance) {
-          if (compl_shows_dir == BACKWARD)
-            compl_pending -= todo + 1;
-          else
-            compl_pending += todo + 1;
-        }
-        return -1;
-      }
-
-      if (advance) {
-        if (compl_shows_dir == BACKWARD)
-          --compl_pending;
-        else
-          ++compl_pending;
-      }
-
-      /* Find matches. */
-      num_matches = ins_compl_get_exp(&compl_startpos);
-
-      /* handle any pending completions */
-      while (compl_pending != 0 && compl_direction == compl_shows_dir
-             && advance) {
-        if (compl_pending > 0 && compl_shown_match->cp_next != NULL) {
-          compl_shown_match = compl_shown_match->cp_next;
-          --compl_pending;
-        }
-        if (compl_pending < 0 && compl_shown_match->cp_prev != NULL) {
-          compl_shown_match = compl_shown_match->cp_prev;
-          ++compl_pending;
-        } else
-          break;
-      }
-      found_end = FALSE;
-    }
-    if ((compl_shown_match->cp_flags & ORIGINAL_TEXT) == 0
-        && compl_leader != NULL
-        && !ins_compl_equal(compl_shown_match,
-            compl_leader, (int)STRLEN(compl_leader)))
-      ++todo;
-    else
-      /* Remember a matching item. */
-      found_compl = compl_shown_match;
-
-    /* Stop at the end of the list when we found a usable match. */
-    if (found_end) {
-      if (found_compl != NULL) {
-        compl_shown_match = found_compl;
-        break;
-      }
-      todo = 1;             /* use first usable match after wrapping around */
-    }
-  }
-
-  /* Insert the text of the new completion, or the compl_leader. */
-  if (insert_match) {
-    if (!compl_get_longest || compl_used_match)
-      ins_compl_insert();
-    else
-      ins_bytes(compl_leader + ins_compl_len());
-  } else
-    compl_used_match = FALSE;
-
-  if (!allow_get_expansion) {
-    /* may undisplay the popup menu first */
-    ins_compl_upd_pum();
-
-    /* redraw to show the user what was inserted */
-    update_screen(0);
-
-    /* display the updated popup menu */
-    ins_compl_show_pum();
-
-    /* Delete old text to be replaced, since we're still searching and
-     * don't want to match ourselves!  */
-    ins_compl_delete();
-  }
-
-  /* Enter will select a match when the match wasn't inserted and the popup
-   * menu is visible. */
-  compl_enter_selects = !insert_match && compl_match_array != NULL;
-
-  /*
-   * Show the file name for the match (if any)
-   * Truncate the file name to avoid a wait for return.
-   */
-  if (compl_shown_match->cp_fname != NULL) {
-    STRCPY(IObuff, "match in file ");
-    i = (vim_strsize(compl_shown_match->cp_fname) + 16) - sc_col;
-    if (i <= 0)
-      i = 0;
-    else
-      STRCAT(IObuff, "<");
-    STRCAT(IObuff, compl_shown_match->cp_fname + i);
-    msg(IObuff);
-    redraw_cmdline = FALSE;         /* don't overwrite! */
-  }
-
-  return num_matches;
-}
-
-/*
- * Call this while finding completions, to check whether the user has hit a key
- * that should change the currently displayed completion, or exit completion
- * mode.  Also, when compl_pending is not zero, show a completion as soon as
- * possible. -- webb
- * "frequency" specifies out of how many calls we actually check.
- */
-void ins_compl_check_keys(int frequency)
-{
-  static int count = 0;
-
-  int c;
-
-  /* Don't check when reading keys from a script.  That would break the test
-   * scripts */
-  if (using_script())
-    return;
-
-  /* Only do this at regular intervals */
-  if (++count < frequency)
-    return;
-  count = 0;
-
-  /* Check for a typed key.  Do use mappings, otherwise vim_is_ctrl_x_key()
-   * can't do its work correctly. */
-  c = vpeekc_any();
-  if (c != NUL) {
-    if (vim_is_ctrl_x_key(c) && c != Ctrl_X && c != Ctrl_R) {
-      c = safe_vgetc();         /* Eat the character */
-      compl_shows_dir = ins_compl_key2dir(c);
-      (void)ins_compl_next(FALSE, ins_compl_key2count(c),
-          c != K_UP && c != K_DOWN);
-    } else {
-      /* Need to get the character to have KeyTyped set.  We'll put it
-       * back with vungetc() below.  But skip K_IGNORE. */
-      c = safe_vgetc();
-      if (c != K_IGNORE) {
-        /* Don't interrupt completion when the character wasn't typed,
-         * e.g., when doing @q to replay keys. */
-        if (c != Ctrl_R && KeyTyped)
-          compl_interrupted = TRUE;
-
-        vungetc(c);
-      }
-    }
-  }
-  if (compl_pending != 0 && !got_int) {
-    int todo = compl_pending > 0 ? compl_pending : -compl_pending;
-
-    compl_pending = 0;
-    (void)ins_compl_next(FALSE, todo, TRUE);
-  }
-}
-
-/*
- * Decide the direction of Insert mode complete from the key typed.
- * Returns BACKWARD or FORWARD.
- */
-static int ins_compl_key2dir(int c)
-{
-  if (c == Ctrl_P || c == Ctrl_L
-      || (pum_visible() && (c == K_PAGEUP || c == K_KPAGEUP
-                            || c == K_S_UP || c == K_UP)))
-    return BACKWARD;
-  return FORWARD;
-}
-
-/*
- * Return TRUE for keys that are used for completion only when the popup menu
- * is visible.
- */
-static int ins_compl_pum_key(int c)
-{
-  return pum_visible() && (c == K_PAGEUP || c == K_KPAGEUP || c == K_S_UP
-                           || c == K_PAGEDOWN || c == K_KPAGEDOWN || c ==
-                           K_S_DOWN
-                           || c == K_UP || c == K_DOWN);
-}
-
-/*
- * Decide the number of completions to move forward.
- * Returns 1 for most keys, height of the popup menu for page-up/down keys.
- */
-static int ins_compl_key2count(int c)
-{
-  int h;
-
-  if (ins_compl_pum_key(c) && c != K_UP && c != K_DOWN) {
-    h = pum_get_height();
-    if (h > 3)
-      h -= 2;       /* keep some context */
-    return h;
-  }
-  return 1;
-}
-
-/*
- * Return TRUE if completion with "c" should insert the match, FALSE if only
- * to change the currently selected completion.
- */
-static int ins_compl_use_match(int c)
-{
-  switch (c) {
-  case K_UP:
-  case K_DOWN:
-  case K_PAGEDOWN:
-  case K_KPAGEDOWN:
-  case K_S_DOWN:
-  case K_PAGEUP:
-  case K_KPAGEUP:
-  case K_S_UP:
-    return FALSE;
-  }
-  return TRUE;
-}
-
-/*
- * Do Insert mode completion.
- * Called when character "c" was typed, which has a meaning for completion.
- * Returns OK if completion was done, FAIL if something failed (out of mem).
- */
-static int ins_complete(int c)
-{
-  char_u      *line;
-  int startcol = 0;                 /* column where searched text starts */
-  colnr_T curs_col;                 /* cursor column */
-  int n;
-  int save_w_wrow;
-
-  compl_direction = ins_compl_key2dir(c);
-  if (!compl_started) {
-    /* First time we hit ^N or ^P (in a row, I mean) */
-
-    did_ai = FALSE;
-    did_si = FALSE;
-    can_si = FALSE;
-    can_si_back = FALSE;
-    if (stop_arrow() == FAIL)
-      return FAIL;
-
-    line = ml_get(curwin->w_cursor.lnum);
-    curs_col = curwin->w_cursor.col;
-    compl_pending = 0;
-
-    /* If this same ctrl_x_mode has been interrupted use the text from
-     * "compl_startpos" to the cursor as a pattern to add a new word
-     * instead of expand the one before the cursor, in word-wise if
-     * "compl_startpos" is not in the same line as the cursor then fix it
-     * (the line has been split because it was longer than 'tw').  if SOL
-     * is set then skip the previous pattern, a word at the beginning of
-     * the line has been inserted, we'll look for that  -- Acevedo. */
-    if ((compl_cont_status & CONT_INTRPT) == CONT_INTRPT
-        && compl_cont_mode == ctrl_x_mode) {
-      /*
-       * it is a continued search
-       */
-      compl_cont_status &= ~CONT_INTRPT;        /* remove INTRPT */
-      if (ctrl_x_mode == 0 || ctrl_x_mode == CTRL_X_PATH_PATTERNS
-          || ctrl_x_mode == CTRL_X_PATH_DEFINES) {
-        if (compl_startpos.lnum != curwin->w_cursor.lnum) {
-          /* line (probably) wrapped, set compl_startpos to the
-           * first non_blank in the line, if it is not a wordchar
-           * include it to get a better pattern, but then we don't
-           * want the "\\<" prefix, check it bellow */
-          compl_col = (colnr_T)(skipwhite(line) - line);
-          compl_startpos.col = compl_col;
-          compl_startpos.lnum = curwin->w_cursor.lnum;
-          compl_cont_status &= ~CONT_SOL;             /* clear SOL if present */
-        } else {
-          /* S_IPOS was set when we inserted a word that was at the
-           * beginning of the line, which means that we'll go to SOL
-           * mode but first we need to redefine compl_startpos */
-          if (compl_cont_status & CONT_S_IPOS) {
-            compl_cont_status |= CONT_SOL;
-            compl_startpos.col = (colnr_T)(skipwhite(
-                                               line + compl_length
-                                               + compl_startpos.col) - line);
-          }
-          compl_col = compl_startpos.col;
-        }
-        compl_length = curwin->w_cursor.col - (int)compl_col;
-        /* IObuff is used to add a "word from the next line" would we
-         * have enough space?  just being paranoid */
-#define MIN_SPACE 75
-        if (compl_length > (IOSIZE - MIN_SPACE)) {
-          compl_cont_status &= ~CONT_SOL;
-          compl_length = (IOSIZE - MIN_SPACE);
-          compl_col = curwin->w_cursor.col - compl_length;
-        }
-        compl_cont_status |= CONT_ADDING | CONT_N_ADDS;
-        if (compl_length < 1)
-          compl_cont_status &= CONT_LOCAL;
-      } else if (ctrl_x_mode == CTRL_X_WHOLE_LINE)
-        compl_cont_status = CONT_ADDING | CONT_N_ADDS;
-      else
-        compl_cont_status = 0;
-    } else
-      compl_cont_status &= CONT_LOCAL;
-
-    if (!(compl_cont_status & CONT_ADDING)) {   /* normal expansion */
-      compl_cont_mode = ctrl_x_mode;
-      if (ctrl_x_mode != 0)             /* Remove LOCAL if ctrl_x_mode != 0 */
-        compl_cont_status = 0;
-      compl_cont_status |= CONT_N_ADDS;
-      compl_startpos = curwin->w_cursor;
-      startcol = (int)curs_col;
-      compl_col = 0;
-    }
-
-    /* Work out completion pattern and original text -- webb */
-    if (ctrl_x_mode == 0 || (ctrl_x_mode & CTRL_X_WANT_IDENT)) {
-      if ((compl_cont_status & CONT_SOL)
-          || ctrl_x_mode == CTRL_X_PATH_DEFINES) {
-        if (!(compl_cont_status & CONT_ADDING)) {
-          while (--startcol >= 0 && vim_isIDc(line[startcol]))
-            ;
-          compl_col += ++startcol;
-          compl_length = curs_col - startcol;
-        }
-        if (p_ic)
-          compl_pattern = str_foldcase(line + compl_col,
-              compl_length, NULL, 0);
-        else
-          compl_pattern = vim_strnsave(line + compl_col,
-              compl_length);
-        if (compl_pattern == NULL)
-          return FAIL;
-      } else if (compl_cont_status & CONT_ADDING) {
-        char_u      *prefix = (char_u *)"\\<";
-
-        /* we need up to 2 extra chars for the prefix */
-        compl_pattern = xmalloc(quote_meta(NULL, line + compl_col,
-                compl_length) + 2);
-        if (!vim_iswordp(line + compl_col)
-            || (compl_col > 0
-                && (
-                  vim_iswordp(mb_prevptr(line, line + compl_col))
-                  )))
-          prefix = (char_u *)"";
-        STRCPY((char *)compl_pattern, prefix);
-        (void)quote_meta(compl_pattern + STRLEN(prefix),
-            line + compl_col, compl_length);
-      } else if (--startcol < 0 ||
-                 !vim_iswordp(mb_prevptr(line, line + startcol + 1))
-                 ) {
-        /* Match any word of at least two chars */
-        compl_pattern = vim_strsave((char_u *)"\\<\\k\\k");
-        if (compl_pattern == NULL)
-          return FAIL;
-        compl_col += curs_col;
-        compl_length = 0;
-      } else {
-        /* Search the point of change class of multibyte character
-         * or not a word single byte character backward.  */
-        if (has_mbyte) {
-          int base_class;
-          int head_off;
-
-          startcol -= (*mb_head_off)(line, line + startcol);
-          base_class = mb_get_class(line + startcol);
-          while (--startcol >= 0) {
-            head_off = (*mb_head_off)(line, line + startcol);
-            if (base_class != mb_get_class(line + startcol
-                    - head_off))
-              break;
-            startcol -= head_off;
-          }
-        } else
-          while (--startcol >= 0 && vim_iswordc(line[startcol]))
-            ;
-        compl_col += ++startcol;
-        compl_length = (int)curs_col - startcol;
-        if (compl_length == 1) {
-          /* Only match word with at least two chars -- webb
-           * there's no need to call quote_meta,
-           * xmalloc(7) is enough  -- Acevedo
-           */
-          compl_pattern = xmalloc(7);
-          STRCPY((char *)compl_pattern, "\\<");
-          (void)quote_meta(compl_pattern + 2, line + compl_col, 1);
-          STRCAT((char *)compl_pattern, "\\k");
-        } else {
-          compl_pattern = xmalloc(quote_meta(NULL, line + compl_col,
-                  compl_length) + 2);
-          STRCPY((char *)compl_pattern, "\\<");
-          (void)quote_meta(compl_pattern + 2, line + compl_col,
-              compl_length);
-        }
-      }
-    } else if (ctrl_x_mode == CTRL_X_WHOLE_LINE) {
-      compl_col = (colnr_T)(skipwhite(line) - line);
-      compl_length = (int)curs_col - (int)compl_col;
-      if (compl_length < 0)             /* cursor in indent: empty pattern */
-        compl_length = 0;
-      if (p_ic)
-        compl_pattern = str_foldcase(line + compl_col, compl_length,
-            NULL, 0);
-      else
-        compl_pattern = vim_strnsave(line + compl_col, compl_length);
-      if (compl_pattern == NULL)
-        return FAIL;
-    } else if (ctrl_x_mode == CTRL_X_FILES) {
-      /* Go back to just before the first filename character. */
-      if (startcol > 0) {
-        char_u  *p = line + startcol;
-
-        mb_ptr_back(line, p);
-        while (p > line && vim_isfilec(PTR2CHAR(p)))
-          mb_ptr_back(line, p);
-        if (p == line && vim_isfilec(PTR2CHAR(p)))
-          startcol = 0;
-        else
-          startcol = (int)(p - line) + 1;
-      }
-
-      compl_col += startcol;
-      compl_length = (int)curs_col - startcol;
-      compl_pattern = addstar(line + compl_col, compl_length,
-          EXPAND_FILES);
-      if (compl_pattern == NULL)
-        return FAIL;
-    } else if (ctrl_x_mode == CTRL_X_CMDLINE) {
-      compl_pattern = vim_strnsave(line, curs_col);
-      if (compl_pattern == NULL)
-        return FAIL;
-      set_cmd_context(&compl_xp, compl_pattern,
-          (int)STRLEN(compl_pattern), curs_col);
-      if (compl_xp.xp_context == EXPAND_UNSUCCESSFUL
-          || compl_xp.xp_context == EXPAND_NOTHING)
-        /* No completion possible, use an empty pattern to get a
-         * "pattern not found" message. */
-        compl_col = curs_col;
-      else
-        compl_col = (int)(compl_xp.xp_pattern - compl_pattern);
-      compl_length = curs_col - compl_col;
-    } else if (ctrl_x_mode == CTRL_X_FUNCTION || ctrl_x_mode ==
-               CTRL_X_OMNI) {
-      /*
-       * Call user defined function 'completefunc' with "a:findstart"
-       * set to 1 to obtain the length of text to use for completion.
-       */
-      char_u      *args[2];
-      int col;
-      char_u      *funcname;
-      pos_T pos;
-      win_T       *curwin_save;
-      buf_T       *curbuf_save;
-
-      /* Call 'completefunc' or 'omnifunc' and get pattern length as a
-       * string */
-      funcname = ctrl_x_mode == CTRL_X_FUNCTION
-                 ? curbuf->b_p_cfu : curbuf->b_p_ofu;
-      if (*funcname == NUL) {
-        EMSG2(_(e_notset), ctrl_x_mode == CTRL_X_FUNCTION
-            ? "completefunc" : "omnifunc");
-        return FAIL;
-      }
-
-      args[0] = (char_u *)"1";
-      args[1] = NULL;
-      pos = curwin->w_cursor;
-      curwin_save = curwin;
-      curbuf_save = curbuf;
-      col = call_func_retnr(funcname, 2, args, FALSE);
-      if (curwin_save != curwin || curbuf_save != curbuf) {
-        EMSG(_(e_complwin));
-        return FAIL;
-      }
-      curwin->w_cursor = pos;           /* restore the cursor position */
-      check_cursor();
-      if (!equalpos(curwin->w_cursor, pos)) {
-        EMSG(_(e_compldel));
-        return FAIL;
-      }
-
-      /* Return value -2 means the user complete function wants to
-       * cancel the complete without an error.
-       * Return value -3 does the same as -2 and leaves CTRL-X mode.*/
-      if (col == -2)
-        return FAIL;
-      if (col == -3) {
-        ctrl_x_mode = 0;
-        edit_submode = NULL;
-        msg_clr_cmdline();
-        return FAIL;
-      }
-
-      /*
-       * Reset extended parameters of completion, when start new
-       * completion.
-       */
-      compl_opt_refresh_always = FALSE;
-
-      if (col < 0)
-        col = curs_col;
-      compl_col = col;
-      if (compl_col > curs_col)
-        compl_col = curs_col;
-
-      /* Setup variables for completion.  Need to obtain "line" again,
-       * it may have become invalid. */
-      line = ml_get(curwin->w_cursor.lnum);
-      compl_length = curs_col - compl_col;
-      compl_pattern = vim_strnsave(line + compl_col, compl_length);
-      if (compl_pattern == NULL)
-        return FAIL;
-    } else if (ctrl_x_mode == CTRL_X_SPELL) {
-      if (spell_bad_len > 0)
-        compl_col = curs_col - spell_bad_len;
-      else
-        compl_col = spell_word_start(startcol);
-      if (compl_col >= (colnr_T)startcol) {
-        compl_length = 0;
-        compl_col = curs_col;
-      } else {
-        spell_expand_check_cap(compl_col);
-        compl_length = (int)curs_col - compl_col;
-      }
-      /* Need to obtain "line" again, it may have become invalid. */
-      line = ml_get(curwin->w_cursor.lnum);
-      compl_pattern = vim_strnsave(line + compl_col, compl_length);
-      if (compl_pattern == NULL)
-        return FAIL;
-    } else {
-      EMSG2(_(e_intern2), "ins_complete()");
-      return FAIL;
-    }
-
-    if (compl_cont_status & CONT_ADDING) {
-      edit_submode_pre = (char_u *)_(" Adding");
-      if (ctrl_x_mode == CTRL_X_WHOLE_LINE) {
-        /* Insert a new line, keep indentation but ignore 'comments' */
-        char_u *old = curbuf->b_p_com;
-
-        curbuf->b_p_com = (char_u *)"";
-        compl_startpos.lnum = curwin->w_cursor.lnum;
-        compl_startpos.col = compl_col;
-        ins_eol('\r');
-        curbuf->b_p_com = old;
-        compl_length = 0;
-        compl_col = curwin->w_cursor.col;
-      }
-    } else {
-      edit_submode_pre = NULL;
-      compl_startpos.col = compl_col;
-    }
-
-    if (compl_cont_status & CONT_LOCAL)
-      edit_submode = (char_u *)_(ctrl_x_msgs[CTRL_X_LOCAL_MSG]);
-    else
-      edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
-
-    /* If any of the original typed text has been changed we need to fix
-     * the redo buffer. */
-    ins_compl_fixRedoBufForLeader(NULL);
-
-    /* Always add completion for the original text. */
-    free(compl_orig_text);
-    compl_orig_text = vim_strnsave(line + compl_col, compl_length);
-    if (compl_orig_text == NULL || ins_compl_add(compl_orig_text,
-            -1, p_ic, NULL, NULL, 0, ORIGINAL_TEXT, FALSE) != OK) {
-      free(compl_pattern);
-      compl_pattern = NULL;
-      free(compl_orig_text);
-      compl_orig_text = NULL;
-      return FAIL;
-    }
-
-    /* showmode might reset the internal line pointers, so it must
-     * be called before line = ml_get(), or when this address is no
-     * longer needed.  -- Acevedo.
-     */
-    edit_submode_extra = (char_u *)_("-- Searching...");
-    edit_submode_highl = HLF_COUNT;
-    showmode();
-    edit_submode_extra = NULL;
-    out_flush();
-  }
-
-  compl_shown_match = compl_curr_match;
-  compl_shows_dir = compl_direction;
-
-  /*
-   * Find next match (and following matches).
-   */
-  save_w_wrow = curwin->w_wrow;
-  n = ins_compl_next(TRUE, ins_compl_key2count(c), ins_compl_use_match(c));
-
-  /* may undisplay the popup menu */
-  ins_compl_upd_pum();
-
-  if (n > 1)            /* all matches have been found */
-    compl_matches = n;
-  compl_curr_match = compl_shown_match;
-  compl_direction = compl_shows_dir;
-
-  /* Eat the ESC that vgetc() returns after a CTRL-C to avoid leaving Insert
-   * mode. */
-  if (got_int && !global_busy) {
-    (void)vgetc();
-    got_int = FALSE;
-  }
-
-  /* we found no match if the list has only the "compl_orig_text"-entry */
-  if (compl_first_match == compl_first_match->cp_next) {
-    edit_submode_extra = (compl_cont_status & CONT_ADDING)
-                         && compl_length > 1
-                         ? (char_u *)_(e_hitend) : (char_u *)_(e_patnotf);
-    edit_submode_highl = HLF_E;
-    /* remove N_ADDS flag, so next ^X<> won't try to go to ADDING mode,
-     * because we couldn't expand anything at first place, but if we used
-     * ^P, ^N, ^X^I or ^X^D we might want to add-expand a single-char-word
-     * (such as M in M'exico) if not tried already.  -- Acevedo */
-    if (       compl_length > 1
-               || (compl_cont_status & CONT_ADDING)
-               || (ctrl_x_mode != 0
-                   && ctrl_x_mode != CTRL_X_PATH_PATTERNS
-                   && ctrl_x_mode != CTRL_X_PATH_DEFINES))
-      compl_cont_status &= ~CONT_N_ADDS;
-  }
-
-  if (compl_curr_match->cp_flags & CONT_S_IPOS)
-    compl_cont_status |= CONT_S_IPOS;
-  else
-    compl_cont_status &= ~CONT_S_IPOS;
-
-  if (edit_submode_extra == NULL) {
-    if (compl_curr_match->cp_flags & ORIGINAL_TEXT) {
-      edit_submode_extra = (char_u *)_("Back at original");
-      edit_submode_highl = HLF_W;
-    } else if (compl_cont_status & CONT_S_IPOS) {
-      edit_submode_extra = (char_u *)_("Word from other line");
-      edit_submode_highl = HLF_COUNT;
-    } else if (compl_curr_match->cp_next == compl_curr_match->cp_prev) {
-      edit_submode_extra = (char_u *)_("The only match");
-      edit_submode_highl = HLF_COUNT;
-    } else {
-      /* Update completion sequence number when needed. */
-      if (compl_curr_match->cp_number == -1) {
-        int number = 0;
-        compl_T         *match;
-
-        if (compl_direction == FORWARD) {
-          /* search backwards for the first valid (!= -1) number.
-           * This should normally succeed already at the first loop
-           * cycle, so it's fast! */
-          for (match = compl_curr_match->cp_prev; match != NULL
-               && match != compl_first_match;
-               match = match->cp_prev)
-            if (match->cp_number != -1) {
-              number = match->cp_number;
-              break;
-            }
-          if (match != NULL)
-            /* go up and assign all numbers which are not assigned
-             * yet */
-            for (match = match->cp_next;
-                 match != NULL && match->cp_number == -1;
-                 match = match->cp_next)
-              match->cp_number = ++number;
-        } else {   /* BACKWARD */
-                     /* search forwards (upwards) for the first valid (!= -1)
-                      * number.  This should normally succeed already at the
-                      * first loop cycle, so it's fast! */
-          for (match = compl_curr_match->cp_next; match != NULL
-               && match != compl_first_match;
-               match = match->cp_next)
-            if (match->cp_number != -1) {
-              number = match->cp_number;
-              break;
-            }
-          if (match != NULL)
-            /* go down and assign all numbers which are not
-             * assigned yet */
-            for (match = match->cp_prev; match
-                 && match->cp_number == -1;
-                 match = match->cp_prev)
-              match->cp_number = ++number;
-        }
-      }
-
-      /* The match should always have a sequence number now, this is
-       * just a safety check. */
-      if (compl_curr_match->cp_number != -1) {
-        /* Space for 10 text chars. + 2x10-digit no.s = 31.
-         * Translations may need more than twice that. */
-        static char_u match_ref[81];
-
-        if (compl_matches > 0)
-          vim_snprintf((char *)match_ref, sizeof(match_ref),
-              _("match %d of %d"),
-              compl_curr_match->cp_number, compl_matches);
-        else
-          vim_snprintf((char *)match_ref, sizeof(match_ref),
-              _("match %d"),
-              compl_curr_match->cp_number);
-        edit_submode_extra = match_ref;
-        edit_submode_highl = HLF_R;
-        if (dollar_vcol >= 0)
-          curs_columns(FALSE);
-      }
-    }
-  }
-
-  /* Show a message about what (completion) mode we're in. */
-  showmode();
-  if (edit_submode_extra != NULL) {
-    if (!p_smd)
-      msg_attr(edit_submode_extra,
-          edit_submode_highl < HLF_COUNT
-          ? hl_attr(edit_submode_highl) : 0);
-  } else
-    msg_clr_cmdline();          /* necessary for "noshowmode" */
-
-  /* Show the popup menu, unless we got interrupted. */
-  if (!compl_interrupted) {
-    /* RedrawingDisabled may be set when invoked through complete(). */
-    n = RedrawingDisabled;
-    RedrawingDisabled = 0;
-
-    /* If the cursor moved we need to remove the pum first. */
-    setcursor();
-    if (save_w_wrow != curwin->w_wrow)
-      ins_compl_del_pum();
-
-    ins_compl_show_pum();
-    setcursor();
-    RedrawingDisabled = n;
-  }
-  compl_was_interrupted = compl_interrupted;
-  compl_interrupted = FALSE;
-
-  return OK;
-}
-
-/*
- * Looks in the first "len" chars. of "src" for search-metachars.
- * If dest is not NULL the chars. are copied there quoting (with
- * a backslash) the metachars, and dest would be NUL terminated.
- * Returns the length (needed) of dest
- */
-static unsigned quote_meta(char_u *dest, char_u *src, int len)
-{
-  unsigned m = (unsigned)len + 1;       /* one extra for the NUL */
-
-  for (; --len >= 0; src++) {
-    switch (*src) {
-    case '.':
-    case '*':
-    case '[':
-      if (ctrl_x_mode == CTRL_X_DICTIONARY
-          || ctrl_x_mode == CTRL_X_THESAURUS)
-        break;
-    case '~':
-      if (!p_magic)             /* quote these only if magic is set */
-        break;
-    case '\\':
-      if (ctrl_x_mode == CTRL_X_DICTIONARY
-          || ctrl_x_mode == CTRL_X_THESAURUS)
-        break;
-    case '^':                   /* currently it's not needed. */
-    case '$':
-      m++;
-      if (dest != NULL)
-        *dest++ = '\\';
-      break;
-    }
-    if (dest != NULL)
-      *dest++ = *src;
-    /* Copy remaining bytes of a multibyte character. */
-    if (has_mbyte) {
-      int i, mb_len;
-
-      mb_len = (*mb_ptr2len)(src) - 1;
-      if (mb_len > 0 && len >= mb_len)
-        for (i = 0; i < mb_len; ++i) {
-          --len;
-          ++src;
-          if (dest != NULL)
-            *dest++ = *src;
-        }
-    }
-  }
-  if (dest != NULL)
-    *dest = NUL;
-
-  return m;
-}
-
-/*
- * Next character is interpreted literally.
- * A one, two or three digit decimal number is interpreted as its byte value.
- * If one or two digits are entered, the next character is given to vungetc().
- * For Unicode a character > 255 may be returned.
- */
-int get_literal(void)
-{
-  int cc;
-  int nc;
-  int i;
-  int hex = FALSE;
-  int octal = FALSE;
-  int unicode = 0;
-
-  if (got_int)
-    return Ctrl_C;
-
-#ifdef USE_ON_FLY_SCROLL
-  dont_scroll = TRUE;           /* disallow scrolling here */
-#endif
-  ++no_mapping;                 /* don't map the next key hits */
-  cc = 0;
-  i = 0;
-  for (;; ) {
-    nc = plain_vgetc();
-    if (!(State & CMDLINE)
-        && MB_BYTE2LEN_CHECK(nc) == 1
-        )
-      add_to_showcmd(nc);
-    if (nc == 'x' || nc == 'X')
-      hex = TRUE;
-    else if (nc == 'o' || nc == 'O')
-      octal = TRUE;
-    else if (nc == 'u' || nc == 'U')
-      unicode = nc;
-    else {
-      if (hex
-          || unicode != 0
-          ) {
-        if (!vim_isxdigit(nc))
-          break;
-        cc = cc * 16 + hex2nr(nc);
-      } else if (octal) {
-        if (nc < '0' || nc > '7')
-          break;
-        cc = cc * 8 + nc - '0';
-      } else {
-        if (!VIM_ISDIGIT(nc))
-          break;
-        cc = cc * 10 + nc - '0';
-      }
-
-      ++i;
-    }
-
-    if (cc > 255
-        && unicode == 0
-        )
-      cc = 255;                 /* limit range to 0-255 */
-    nc = 0;
-
-    if (hex) {                  /* hex: up to two chars */
-      if (i >= 2)
-        break;
-    } else if (unicode) {     /* Unicode: up to four or eight chars */
-      if ((unicode == 'u' && i >= 4) || (unicode == 'U' && i >= 8))
-        break;
-    } else if (i >= 3)          /* decimal or octal: up to three chars */
-      break;
-  }
-  if (i == 0) {     /* no number entered */
-    if (nc == K_ZERO) {     /* NUL is stored as NL */
-      cc = '\n';
-      nc = 0;
-    } else {
-      cc = nc;
-      nc = 0;
-    }
-  }
-
-  if (cc == 0)          /* NUL is stored as NL */
-    cc = '\n';
-  if (enc_dbcs && (cc & 0xff) == 0)
-    cc = '?';           /* don't accept an illegal DBCS char, the NUL in the
-                           second byte will cause trouble! */
-
-  --no_mapping;
-  if (nc)
-    vungetc(nc);
-  got_int = FALSE;          /* CTRL-C typed after CTRL-V is not an interrupt */
-  return cc;
-}
-
-/*
- * Insert character, taking care of special keys and mod_mask
- */
-static void 
-insert_special (
-    int c,
-    int allow_modmask,
-    int ctrlv                  /* c was typed after CTRL-V */
-)
-{
-  char_u  *p;
-  int len;
-
-  /*
-   * Special function key, translate into "<Key>". Up to the last '>' is
-   * inserted with ins_str(), so as not to replace characters in replace
-   * mode.
-   * Only use mod_mask for special keys, to avoid things like <S-Space>,
-   * unless 'allow_modmask' is TRUE.
-   */
-  if (IS_SPECIAL(c) || (mod_mask && allow_modmask)) {
-    p = get_special_key_name(c, mod_mask);
-    len = (int)STRLEN(p);
-    c = p[len - 1];
-    if (len > 2) {
-      if (stop_arrow() == FAIL)
-        return;
-      p[len - 1] = NUL;
-      ins_str(p);
-      AppendToRedobuffLit(p, -1);
-      ctrlv = FALSE;
-    }
-  }
-  if (stop_arrow() == OK)
-    insertchar(c, ctrlv ? INSCHAR_CTRLV : 0, -1);
-}
-
-/*
- * Special characters in this context are those that need processing other
- * than the simple insertion that can be performed here. This includes ESC
- * which terminates the insert, and CR/NL which need special processing to
- * open up a new line. This routine tries to optimize insertions performed by
- * the "redo", "undo" or "put" commands, so it needs to know when it should
- * stop and defer processing to the "normal" mechanism.
- * '0' and '^' are special, because they can be followed by CTRL-D.
- */
-# define ISSPECIAL(c)   ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^')
-
-# define WHITECHAR(cc) (vim_iswhite(cc) && \
-                        (!enc_utf8 || \
-                         !utf_iscomposing(utf_ptr2char(ml_get_cursor() + 1))))
-
-/*
- * "flags": INSCHAR_FORMAT - force formatting
- *	    INSCHAR_CTRLV  - char typed just after CTRL-V
- *	    INSCHAR_NO_FEX - don't use 'formatexpr'
- *
- *   NOTE: passes the flags value straight through to internal_format() which,
- *	   beside INSCHAR_FORMAT (above), is also looking for these:
- *	    INSCHAR_DO_COM   - format comments
- *	    INSCHAR_COM_LIST - format comments with num list or 2nd line indent
- */
-void 
-insertchar (
-    int c,                                  /* character to insert or NUL */
-    int flags,                              /* INSCHAR_FORMAT, etc. */
-    int second_indent                      /* indent for second line if >= 0 */
-)
-{
-  int textwidth;
-  char_u      *p;
-  int fo_ins_blank;
-
-  textwidth = comp_textwidth(flags & INSCHAR_FORMAT);
-  fo_ins_blank = has_format_option(FO_INS_BLANK);
-
-  /*
-   * Try to break the line in two or more pieces when:
-   * - Always do this if we have been called to do formatting only.
-   * - Always do this when 'formatoptions' has the 'a' flag and the line
-   *   ends in white space.
-   * - Otherwise:
-   *	 - Don't do this if inserting a blank
-   *	 - Don't do this if an existing character is being replaced, unless
-   *	   we're in VREPLACE mode.
-   *	 - Do this if the cursor is not on the line where insert started
-   *	 or - 'formatoptions' doesn't have 'l' or the line was not too long
-   *	       before the insert.
-   *	    - 'formatoptions' doesn't have 'b' or a blank was inserted at or
-   *	      before 'textwidth'
-   */
-  if (textwidth > 0
-      && ((flags & INSCHAR_FORMAT)
-          || (!vim_iswhite(c)
-              && !((State & REPLACE_FLAG)
-                   && !(State & VREPLACE_FLAG)
-                   && *ml_get_cursor() != NUL)
-              && (curwin->w_cursor.lnum != Insstart.lnum
-                  || ((!has_format_option(FO_INS_LONG)
-                       || Insstart_textlen <= (colnr_T)textwidth)
-                      && (!fo_ins_blank
-                          || Insstart_blank_vcol <= (colnr_T)textwidth
-                          )))))) {
-    /* Format with 'formatexpr' when it's set.  Use internal formatting
-     * when 'formatexpr' isn't set or it returns non-zero. */
-    int do_internal = TRUE;
-
-    if (*curbuf->b_p_fex != NUL && (flags & INSCHAR_NO_FEX) == 0) {
-      do_internal = (fex_format(curwin->w_cursor.lnum, 1L, c) != 0);
-      /* It may be required to save for undo again, e.g. when setline()
-       * was called. */
-      ins_need_undo = TRUE;
-    }
-    if (do_internal)
-      internal_format(textwidth, second_indent, flags, c == NUL, c);
-  }
-
-  if (c == NUL)             /* only formatting was wanted */
-    return;
-
-  /* Check whether this character should end a comment. */
-  if (did_ai && (int)c == end_comment_pending) {
-    char_u  *line;
-    char_u lead_end[COM_MAX_LEN];           /* end-comment string */
-    int middle_len, end_len;
-    int i;
-
-    /*
-     * Need to remove existing (middle) comment leader and insert end
-     * comment leader.  First, check what comment leader we can find.
-     */
-    i = get_leader_len(line = ml_get_curline(), &p, FALSE, TRUE);
-    if (i > 0 && vim_strchr(p, COM_MIDDLE) != NULL) {   /* Just checking */
-      /* Skip middle-comment string */
-      while (*p && p[-1] != ':')        /* find end of middle flags */
-        ++p;
-      middle_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
-      /* Don't count trailing white space for middle_len */
-      while (middle_len > 0 && vim_iswhite(lead_end[middle_len - 1]))
-        --middle_len;
-
-      /* Find the end-comment string */
-      while (*p && p[-1] != ':')        /* find end of end flags */
-        ++p;
-      end_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
-
-      /* Skip white space before the cursor */
-      i = curwin->w_cursor.col;
-      while (--i >= 0 && vim_iswhite(line[i]))
-        ;
-      i++;
-
-      /* Skip to before the middle leader */
-      i -= middle_len;
-
-      /* Check some expected things before we go on */
-      if (i >= 0 && lead_end[end_len - 1] == end_comment_pending) {
-        /* Backspace over all the stuff we want to replace */
-        backspace_until_column(i);
-
-        /*
-         * Insert the end-comment string, except for the last
-         * character, which will get inserted as normal later.
-         */
-        ins_bytes_len(lead_end, end_len - 1);
-      }
-    }
-  }
-  end_comment_pending = NUL;
-
-  did_ai = FALSE;
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-
-  /*
-   * If there's any pending input, grab up to INPUT_BUFLEN at once.
-   * This speeds up normal text input considerably.
-   * Don't do this when 'cindent' or 'indentexpr' is set, because we might
-   * need to re-indent at a ':', or any other character (but not what
-   * 'paste' is set)..
-   * Don't do this when there an InsertCharPre autocommand is defined,
-   * because we need to fire the event for every character.
-   */
-#ifdef USE_ON_FLY_SCROLL
-  dont_scroll = FALSE;                  /* allow scrolling here */
-#endif
-
-  if (       !ISSPECIAL(c)
-             && (!has_mbyte || (*mb_char2len)(c) == 1)
-             && vpeekc() != NUL
-             && !(State & REPLACE_FLAG)
-             && !cindent_on()
-             && !p_ri
-             && !has_insertcharpre()
-             ) {
-#define INPUT_BUFLEN 100
-    char_u buf[INPUT_BUFLEN + 1];
-    int i;
-    colnr_T virtcol = 0;
-
-    buf[0] = c;
-    i = 1;
-    if (textwidth > 0)
-      virtcol = get_nolist_virtcol();
-    /*
-     * Stop the string when:
-     * - no more chars available
-     * - finding a special character (command key)
-     * - buffer is full
-     * - running into the 'textwidth' boundary
-     * - need to check for abbreviation: A non-word char after a word-char
-     */
-    while (    (c = vpeekc()) != NUL
-               && !ISSPECIAL(c)
-               && (!has_mbyte || MB_BYTE2LEN_CHECK(c) == 1)
-               && i < INPUT_BUFLEN
-               && (textwidth == 0
-                   || (virtcol += byte2cells(buf[i - 1])) < (colnr_T)textwidth)
-               && !(!no_abbr && !vim_iswordc(c) && vim_iswordc(buf[i - 1]))) {
-      c = vgetc();
-      if (p_hkmap && KeyTyped)
-        c = hkmap(c);                       /* Hebrew mode mapping */
-      if (p_fkmap && KeyTyped)
-        c = fkmap(c);                       /* Farsi mode mapping */
-      buf[i++] = c;
-    }
-
-    do_digraph(-1);                     /* clear digraphs */
-    do_digraph(buf[i-1]);               /* may be the start of a digraph */
-    buf[i] = NUL;
-    ins_str(buf);
-    if (flags & INSCHAR_CTRLV) {
-      redo_literal(*buf);
-      i = 1;
-    } else
-      i = 0;
-    if (buf[i] != NUL)
-      AppendToRedobuffLit(buf + i, -1);
-  } else {
-    int cc;
-
-    if (has_mbyte && (cc = (*mb_char2len)(c)) > 1) {
-      char_u buf[MB_MAXBYTES + 1];
-
-      (*mb_char2bytes)(c, buf);
-      buf[cc] = NUL;
-      ins_char_bytes(buf, cc);
-      AppendCharToRedobuff(c);
-    } else {
-      ins_char(c);
-      if (flags & INSCHAR_CTRLV)
-        redo_literal(c);
-      else
-        AppendCharToRedobuff(c);
-    }
-  }
-}
-
-/*
- * Format text at the current insert position.
- *
- * If the INSCHAR_COM_LIST flag is present, then the value of second_indent
- * will be the comment leader length sent to open_line().
- */
-static void 
-internal_format (
-    int textwidth,
-    int second_indent,
-    int flags,
-    int format_only,
-    int c             /* character to be inserted (can be NUL) */
-)
-{
-  int cc;
-  int save_char = NUL;
-  int haveto_redraw = FALSE;
-  int fo_ins_blank = has_format_option(FO_INS_BLANK);
-  int fo_multibyte = has_format_option(FO_MBYTE_BREAK);
-  int fo_white_par = has_format_option(FO_WHITE_PAR);
-  int first_line = TRUE;
-  colnr_T leader_len;
-  int no_leader = FALSE;
-  int do_comments = (flags & INSCHAR_DO_COM);
-
-  /*
-   * When 'ai' is off we don't want a space under the cursor to be
-   * deleted.  Replace it with an 'x' temporarily.
-   */
-  if (!curbuf->b_p_ai
-      && !(State & VREPLACE_FLAG)
-      ) {
-    cc = gchar_cursor();
-    if (vim_iswhite(cc)) {
-      save_char = cc;
-      pchar_cursor('x');
-    }
-  }
-
-  /*
-   * Repeat breaking lines, until the current line is not too long.
-   */
-  while (!got_int) {
-    int startcol;                       /* Cursor column at entry */
-    int wantcol;                        /* column at textwidth border */
-    int foundcol;                       /* column for start of spaces */
-    int end_foundcol = 0;               /* column for start of word */
-    colnr_T len;
-    colnr_T virtcol;
-    int orig_col = 0;
-    char_u  *saved_text = NULL;
-    colnr_T col;
-    colnr_T end_col;
-
-    virtcol = get_nolist_virtcol()
-              + char2cells(c != NUL ? c : gchar_cursor());
-    if (virtcol <= (colnr_T)textwidth)
-      break;
-
-    if (no_leader)
-      do_comments = FALSE;
-    else if (!(flags & INSCHAR_FORMAT)
-             && has_format_option(FO_WRAP_COMS))
-      do_comments = TRUE;
-
-    /* Don't break until after the comment leader */
-    if (do_comments)
-      leader_len = get_leader_len(ml_get_curline(), NULL, FALSE, TRUE);
-    else
-      leader_len = 0;
-
-    /* If the line doesn't start with a comment leader, then don't
-     * start one in a following broken line.  Avoids that a %word
-     * moved to the start of the next line causes all following lines
-     * to start with %. */
-    if (leader_len == 0)
-      no_leader = TRUE;
-    if (!(flags & INSCHAR_FORMAT)
-        && leader_len == 0
-        && !has_format_option(FO_WRAP))
-
-      break;
-    if ((startcol = curwin->w_cursor.col) == 0)
-      break;
-
-    /* find column of textwidth border */
-    coladvance((colnr_T)textwidth);
-    wantcol = curwin->w_cursor.col;
-
-    curwin->w_cursor.col = startcol;
-    foundcol = 0;
-
-    /*
-     * Find position to break at.
-     * Stop at first entered white when 'formatoptions' has 'v'
-     */
-    while ((!fo_ins_blank && !has_format_option(FO_INS_VI))
-           || (flags & INSCHAR_FORMAT)
-           || curwin->w_cursor.lnum != Insstart.lnum
-           || curwin->w_cursor.col >= Insstart.col) {
-      if (curwin->w_cursor.col == startcol && c != NUL)
-        cc = c;
-      else
-        cc = gchar_cursor();
-      if (WHITECHAR(cc)) {
-        /* remember position of blank just before text */
-        end_col = curwin->w_cursor.col;
-
-        /* find start of sequence of blanks */
-        while (curwin->w_cursor.col > 0 && WHITECHAR(cc)) {
-          dec_cursor();
-          cc = gchar_cursor();
-        }
-        if (curwin->w_cursor.col == 0 && WHITECHAR(cc))
-          break;                        /* only spaces in front of text */
-        /* Don't break until after the comment leader */
-        if (curwin->w_cursor.col < leader_len)
-          break;
-        if (has_format_option(FO_ONE_LETTER)) {
-          /* do not break after one-letter words */
-          if (curwin->w_cursor.col == 0)
-            break;              /* one-letter word at begin */
-          /* do not break "#a b" when 'tw' is 2 */
-          if (curwin->w_cursor.col <= leader_len)
-            break;
-          col = curwin->w_cursor.col;
-          dec_cursor();
-          cc = gchar_cursor();
-
-          if (WHITECHAR(cc))
-            continue;                   /* one-letter, continue */
-          curwin->w_cursor.col = col;
-        }
-
-        inc_cursor();
-
-        end_foundcol = end_col + 1;
-        foundcol = curwin->w_cursor.col;
-        if (curwin->w_cursor.col <= (colnr_T)wantcol)
-          break;
-      } else if (cc >= 0x100 && fo_multibyte) {
-        /* Break after or before a multi-byte character. */
-        if (curwin->w_cursor.col != startcol) {
-          /* Don't break until after the comment leader */
-          if (curwin->w_cursor.col < leader_len)
-            break;
-          col = curwin->w_cursor.col;
-          inc_cursor();
-          /* Don't change end_foundcol if already set. */
-          if (foundcol != curwin->w_cursor.col) {
-            foundcol = curwin->w_cursor.col;
-            end_foundcol = foundcol;
-            if (curwin->w_cursor.col <= (colnr_T)wantcol)
-              break;
-          }
-          curwin->w_cursor.col = col;
-        }
-
-        if (curwin->w_cursor.col == 0)
-          break;
-
-        col = curwin->w_cursor.col;
-
-        dec_cursor();
-        cc = gchar_cursor();
-
-        if (WHITECHAR(cc))
-          continue;                     /* break with space */
-        /* Don't break until after the comment leader */
-        if (curwin->w_cursor.col < leader_len)
-          break;
-
-        curwin->w_cursor.col = col;
-
-        foundcol = curwin->w_cursor.col;
-        end_foundcol = foundcol;
-        if (curwin->w_cursor.col <= (colnr_T)wantcol)
-          break;
-      }
-      if (curwin->w_cursor.col == 0)
-        break;
-      dec_cursor();
-    }
-
-    if (foundcol == 0) {                /* no spaces, cannot break line */
-      curwin->w_cursor.col = startcol;
-      break;
-    }
-
-    /* Going to break the line, remove any "$" now. */
-    undisplay_dollar();
-
-    /*
-     * Offset between cursor position and line break is used by replace
-     * stack functions.  VREPLACE does not use this, and backspaces
-     * over the text instead.
-     */
-    if (State & VREPLACE_FLAG)
-      orig_col = startcol;              /* Will start backspacing from here */
-    else
-      replace_offset = startcol - end_foundcol;
-
-    /*
-     * adjust startcol for spaces that will be deleted and
-     * characters that will remain on top line
-     */
-    curwin->w_cursor.col = foundcol;
-    while ((cc = gchar_cursor(), WHITECHAR(cc))
-           && (!fo_white_par || curwin->w_cursor.col < startcol))
-      inc_cursor();
-    startcol -= curwin->w_cursor.col;
-    if (startcol < 0)
-      startcol = 0;
-
-    if (State & VREPLACE_FLAG) {
-      /*
-       * In VREPLACE mode, we will backspace over the text to be
-       * wrapped, so save a copy now to put on the next line.
-       */
-      saved_text = vim_strsave(ml_get_cursor());
-      curwin->w_cursor.col = orig_col;
-      if (saved_text == NULL)
-        break;          /* Can't do it, out of memory */
-      saved_text[startcol] = NUL;
-
-      /* Backspace over characters that will move to the next line */
-      if (!fo_white_par)
-        backspace_until_column(foundcol);
-    } else {
-      /* put cursor after pos. to break line */
-      if (!fo_white_par)
-        curwin->w_cursor.col = foundcol;
-    }
-
-    /*
-     * Split the line just before the margin.
-     * Only insert/delete lines, but don't really redraw the window.
-     */
-    open_line(FORWARD, OPENLINE_DELSPACES + OPENLINE_MARKFIX
-        + (fo_white_par ? OPENLINE_KEEPTRAIL : 0)
-        + (do_comments ? OPENLINE_DO_COM : 0)
-        + ((flags & INSCHAR_COM_LIST) ? OPENLINE_COM_LIST : 0)
-        , ((flags & INSCHAR_COM_LIST) ? second_indent : old_indent));
-    if (!(flags & INSCHAR_COM_LIST))
-      old_indent = 0;
-
-    replace_offset = 0;
-    if (first_line) {
-      if (!(flags & INSCHAR_COM_LIST)) {
-        /*
-         * This section is for auto-wrap of numeric lists.  When not
-         * in insert mode (i.e. format_lines()), the INSCHAR_COM_LIST
-         * flag will be set and open_line() will handle it (as seen
-         * above).  The code here (and in get_number_indent()) will
-         * recognize comments if needed...
-         */
-        if (second_indent < 0 && has_format_option(FO_Q_NUMBER))
-          second_indent =
-            get_number_indent(curwin->w_cursor.lnum - 1);
-        if (second_indent >= 0) {
-          if (State & VREPLACE_FLAG)
-            change_indent(INDENT_SET, second_indent,
-                FALSE, NUL, TRUE);
-          else if (leader_len > 0 && second_indent - leader_len > 0) {
-            int i;
-            int padding = second_indent - leader_len;
-
-            /* We started at the first_line of a numbered list
-             * that has a comment.  the open_line() function has
-             * inserted the proper comment leader and positioned
-             * the cursor at the end of the split line.  Now we
-             * add the additional whitespace needed after the
-             * comment leader for the numbered list.  */
-            for (i = 0; i < padding; i++)
-              ins_str((char_u *)" ");
-            changed_bytes(curwin->w_cursor.lnum, leader_len);
-          } else {
-            (void)set_indent(second_indent, SIN_CHANGED);
-          }
-        }
-      }
-      first_line = FALSE;
-    }
-
-    if (State & VREPLACE_FLAG) {
-      /*
-       * In VREPLACE mode we have backspaced over the text to be
-       * moved, now we re-insert it into the new line.
-       */
-      ins_bytes(saved_text);
-      free(saved_text);
-    } else {
-      /*
-       * Check if cursor is not past the NUL off the line, cindent
-       * may have added or removed indent.
-       */
-      curwin->w_cursor.col += startcol;
-      len = (colnr_T)STRLEN(ml_get_curline());
-      if (curwin->w_cursor.col > len)
-        curwin->w_cursor.col = len;
-    }
-
-    haveto_redraw = TRUE;
-    can_cindent = TRUE;
-    /* moved the cursor, don't autoindent or cindent now */
-    did_ai = FALSE;
-    did_si = FALSE;
-    can_si = FALSE;
-    can_si_back = FALSE;
-    line_breakcheck();
-  }
-
-  if (save_char != NUL)                 /* put back space after cursor */
-    pchar_cursor(save_char);
-
-  if (!format_only && haveto_redraw) {
-    update_topline();
-    redraw_curbuf_later(VALID);
-  }
-}
-
-/*
- * Called after inserting or deleting text: When 'formatoptions' includes the
- * 'a' flag format from the current line until the end of the paragraph.
- * Keep the cursor at the same position relative to the text.
- * The caller must have saved the cursor line for undo, following ones will be
- * saved here.
- */
-void 
-auto_format (
-    int trailblank,                 /* when TRUE also format with trailing blank */
-    int prev_line                  /* may start in previous line */
-)
-{
-  pos_T pos;
-  colnr_T len;
-  char_u      *old;
-  char_u      *new, *pnew;
-  int wasatend;
-  int cc;
-
-  if (!has_format_option(FO_AUTO))
-    return;
-
-  pos = curwin->w_cursor;
-  old = ml_get_curline();
-
-  /* may remove added space */
-  check_auto_format(FALSE);
-
-  /* Don't format in Insert mode when the cursor is on a trailing blank, the
-   * user might insert normal text next.  Also skip formatting when "1" is
-   * in 'formatoptions' and there is a single character before the cursor.
-   * Otherwise the line would be broken and when typing another non-white
-   * next they are not joined back together. */
-  wasatend = (pos.col == (colnr_T)STRLEN(old));
-  if (*old != NUL && !trailblank && wasatend) {
-    dec_cursor();
-    cc = gchar_cursor();
-    if (!WHITECHAR(cc) && curwin->w_cursor.col > 0
-        && has_format_option(FO_ONE_LETTER))
-      dec_cursor();
-    cc = gchar_cursor();
-    if (WHITECHAR(cc)) {
-      curwin->w_cursor = pos;
-      return;
-    }
-    curwin->w_cursor = pos;
-  }
-
-  /* With the 'c' flag in 'formatoptions' and 't' missing: only format
-   * comments. */
-  if (has_format_option(FO_WRAP_COMS) && !has_format_option(FO_WRAP)
-      && get_leader_len(old, NULL, FALSE, TRUE) == 0)
-    return;
-
-  /*
-   * May start formatting in a previous line, so that after "x" a word is
-   * moved to the previous line if it fits there now.  Only when this is not
-   * the start of a paragraph.
-   */
-  if (prev_line && !paragraph_start(curwin->w_cursor.lnum)) {
-    --curwin->w_cursor.lnum;
-    if (u_save_cursor() == FAIL)
-      return;
-  }
-
-  /*
-   * Do the formatting and restore the cursor position.  "saved_cursor" will
-   * be adjusted for the text formatting.
-   */
-  saved_cursor = pos;
-  format_lines((linenr_T)-1, FALSE);
-  curwin->w_cursor = saved_cursor;
-  saved_cursor.lnum = 0;
-
-  if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) {
-    /* "cannot happen" */
-    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
-    coladvance((colnr_T)MAXCOL);
-  } else
-    check_cursor_col();
-
-  /* Insert mode: If the cursor is now after the end of the line while it
-   * previously wasn't, the line was broken.  Because of the rule above we
-   * need to add a space when 'w' is in 'formatoptions' to keep a paragraph
-   * formatted. */
-  if (!wasatend && has_format_option(FO_WHITE_PAR)) {
-    new = ml_get_curline();
-    len = (colnr_T)STRLEN(new);
-    if (curwin->w_cursor.col == len) {
-      pnew = vim_strnsave(new, len + 2);
-      pnew[len] = ' ';
-      pnew[len + 1] = NUL;
-      ml_replace(curwin->w_cursor.lnum, pnew, FALSE);
-      /* remove the space later */
-      did_add_space = TRUE;
-    } else
-      /* may remove added space */
-      check_auto_format(FALSE);
-  }
-
-  check_cursor();
-}
-
-/*
- * When an extra space was added to continue a paragraph for auto-formatting,
- * delete it now.  The space must be under the cursor, just after the insert
- * position.
- */
-static void 
-check_auto_format (
-    int end_insert                     /* TRUE when ending Insert mode */
-)
-{
-  int c = ' ';
-  int cc;
-
-  if (did_add_space) {
-    cc = gchar_cursor();
-    if (!WHITECHAR(cc))
-      /* Somehow the space was removed already. */
-      did_add_space = FALSE;
-    else {
-      if (!end_insert) {
-        inc_cursor();
-        c = gchar_cursor();
-        dec_cursor();
-      }
-      if (c != NUL) {
-        /* The space is no longer at the end of the line, delete it. */
-        del_char(FALSE);
-        did_add_space = FALSE;
-      }
-    }
-  }
-}
-
-/*
- * Find out textwidth to be used for formatting:
- *	if 'textwidth' option is set, use it
- *	else if 'wrapmargin' option is set, use W_WIDTH(curwin) - 'wrapmargin'
- *	if invalid value, use 0.
- *	Set default to window width (maximum 79) for "gq" operator.
- */
-int 
-comp_textwidth (
-    int ff                 /* force formatting (for "gq" command) */
-)
-{
-  int textwidth;
-
-  textwidth = curbuf->b_p_tw;
-  if (textwidth == 0 && curbuf->b_p_wm) {
-    /* The width is the window width minus 'wrapmargin' minus all the
-     * things that add to the margin. */
-    textwidth = W_WIDTH(curwin) - curbuf->b_p_wm;
-    if (cmdwin_type != 0)
-      textwidth -= 1;
-    textwidth -= curwin->w_p_fdc;
-
-    if (curwin->w_buffer->b_signlist != NULL) {
-        textwidth -= 1;
-    }
-
-    if (curwin->w_p_nu || curwin->w_p_rnu)
-      textwidth -= 8;
-  }
-  if (textwidth < 0)
-    textwidth = 0;
-  if (ff && textwidth == 0) {
-    textwidth = W_WIDTH(curwin) - 1;
-    if (textwidth > 79)
-      textwidth = 79;
-  }
-  return textwidth;
-}
-
-/*
- * Put a character in the redo buffer, for when just after a CTRL-V.
- */
-static void redo_literal(int c)
-{
-  char_u buf[10];
-
-  /* Only digits need special treatment.  Translate them into a string of
-   * three digits. */
-  if (VIM_ISDIGIT(c)) {
-    vim_snprintf((char *)buf, sizeof(buf), "%03d", c);
-    AppendToRedobuff(buf);
-  } else
-    AppendCharToRedobuff(c);
-}
-
-/*
- * start_arrow() is called when an arrow key is used in insert mode.
- * For undo/redo it resembles hitting the <ESC> key.
- */
-static void 
-start_arrow (
-    pos_T *end_insert_pos           /* can be NULL */
-)
-{
-  if (!arrow_used) {        /* something has been inserted */
-    AppendToRedobuff(ESC_STR);
-    stop_insert(end_insert_pos, FALSE, FALSE);
-    arrow_used = TRUE;          /* this means we stopped the current insert */
-  }
-  check_spell_redraw();
-}
-
-/*
- * If we skipped highlighting word at cursor, do it now.
- * It may be skipped again, thus reset spell_redraw_lnum first.
- */
-static void check_spell_redraw(void)
-{
-  if (spell_redraw_lnum != 0) {
-    linenr_T lnum = spell_redraw_lnum;
-
-    spell_redraw_lnum = 0;
-    redrawWinline(lnum, FALSE);
-  }
-}
-
-/*
- * Called when starting CTRL_X_SPELL mode: Move backwards to a previous badly
- * spelled word, if there is one.
- */
-static void spell_back_to_badword(void)
-{
-  pos_T tpos = curwin->w_cursor;
-
-  spell_bad_len = spell_move_to(curwin, BACKWARD, TRUE, TRUE, NULL);
-  if (curwin->w_cursor.col != tpos.col)
-    start_arrow(&tpos);
-}
-
-/*
- * stop_arrow() is called before a change is made in insert mode.
- * If an arrow key has been used, start a new insertion.
- * Returns FAIL if undo is impossible, shouldn't insert then.
- */
-int stop_arrow(void)
-{
-  if (arrow_used) {
-    if (u_save_cursor() == OK) {
-      arrow_used = FALSE;
-      ins_need_undo = FALSE;
-    }
-    Insstart = curwin->w_cursor;        /* new insertion starts here */
-    Insstart_textlen = (colnr_T)linetabsize(ml_get_curline());
-    ai_col = 0;
-    if (State & VREPLACE_FLAG) {
-      orig_line_count = curbuf->b_ml.ml_line_count;
-      vr_lines_changed = 1;
-    }
-    ResetRedobuff();
-    AppendToRedobuff((char_u *)"1i");       /* pretend we start an insertion */
-    new_insert_skip = 2;
-  } else if (ins_need_undo) {
-    if (u_save_cursor() == OK)
-      ins_need_undo = FALSE;
-  }
-
-  /* Always open fold at the cursor line when inserting something. */
-  foldOpenCursor();
-
-  return arrow_used || ins_need_undo ? FAIL : OK;
-}
-
-/*
- * Do a few things to stop inserting.
- * "end_insert_pos" is where insert ended.  It is NULL when we already jumped
- * to another window/buffer.
- */
-static void 
-stop_insert (
-    pos_T *end_insert_pos,
-    int esc,                                /* called by ins_esc() */
-    int nomove                             /* <c-\><c-o>, don't move cursor */
-)
-{
-  int cc;
-  char_u      *ptr;
-
-  stop_redo_ins();
-  replace_flush();              /* abandon replace stack */
-
-  /*
-   * Save the inserted text for later redo with ^@ and CTRL-A.
-   * Don't do it when "restart_edit" was set and nothing was inserted,
-   * otherwise CTRL-O w and then <Left> will clear "last_insert".
-   */
-  ptr = get_inserted();
-  if (did_restart_edit == 0 || (ptr != NULL
-                                && (int)STRLEN(ptr) > new_insert_skip)) {
-    free(last_insert);
-    last_insert = ptr;
-    last_insert_skip = new_insert_skip;
-  } else
-    free(ptr);
-
-  if (!arrow_used && end_insert_pos != NULL) {
-    /* Auto-format now.  It may seem strange to do this when stopping an
-     * insertion (or moving the cursor), but it's required when appending
-     * a line and having it end in a space.  But only do it when something
-     * was actually inserted, otherwise undo won't work. */
-    if (!ins_need_undo && has_format_option(FO_AUTO)) {
-      pos_T tpos = curwin->w_cursor;
-
-      /* When the cursor is at the end of the line after a space the
-       * formatting will move it to the following word.  Avoid that by
-       * moving the cursor onto the space. */
-      cc = 'x';
-      if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL) {
-        dec_cursor();
-        cc = gchar_cursor();
-        if (!vim_iswhite(cc))
-          curwin->w_cursor = tpos;
-      }
-
-      auto_format(TRUE, FALSE);
-
-      if (vim_iswhite(cc)) {
-        if (gchar_cursor() != NUL)
-          inc_cursor();
-        /* If the cursor is still at the same character, also keep
-         * the "coladd". */
-        if (gchar_cursor() == NUL
-            && curwin->w_cursor.lnum == tpos.lnum
-            && curwin->w_cursor.col == tpos.col)
-          curwin->w_cursor.coladd = tpos.coladd;
-      }
-    }
-
-    /* If a space was inserted for auto-formatting, remove it now. */
-    check_auto_format(TRUE);
-
-    /* If we just did an auto-indent, remove the white space from the end
-     * of the line, and put the cursor back.
-     * Do this when ESC was used or moving the cursor up/down.
-     * Check for the old position still being valid, just in case the text
-     * got changed unexpectedly. */
-    if (!nomove && did_ai && (esc || (vim_strchr(p_cpo, CPO_INDENT) == NULL
-                                      && curwin->w_cursor.lnum !=
-                                      end_insert_pos->lnum))
-        && end_insert_pos->lnum <= curbuf->b_ml.ml_line_count) {
-      pos_T tpos = curwin->w_cursor;
-
-      curwin->w_cursor = *end_insert_pos;
-      check_cursor_col();        /* make sure it is not past the line */
-      for (;; ) {
-        if (gchar_cursor() == NUL && curwin->w_cursor.col > 0)
-          --curwin->w_cursor.col;
-        cc = gchar_cursor();
-        if (!vim_iswhite(cc))
-          break;
-        if (del_char(TRUE) == FAIL)
-          break;            /* should not happen */
-      }
-      if (curwin->w_cursor.lnum != tpos.lnum)
-        curwin->w_cursor = tpos;
-      else if (cc != NUL)
-        ++curwin->w_cursor.col;         /* put cursor back on the NUL */
-
-      /* <C-S-Right> may have started Visual mode, adjust the position for
-       * deleted characters. */
-      if (VIsual_active && VIsual.lnum == curwin->w_cursor.lnum) {
-        int len = (int)STRLEN(ml_get_curline());
-
-        if (VIsual.col > len) {
-          VIsual.col = len;
-          VIsual.coladd = 0;
-        }
-      }
-    }
-  }
-  did_ai = FALSE;
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-
-  /* Set '[ and '] to the inserted text.  When end_insert_pos is NULL we are
-   * now in a different buffer. */
-  if (end_insert_pos != NULL) {
-    curbuf->b_op_start = Insstart;
-    curbuf->b_op_start_orig = Insstart_orig;
-    curbuf->b_op_end = *end_insert_pos;
-  }
-}
-
-/*
- * Set the last inserted text to a single character.
- * Used for the replace command.
- */
-void set_last_insert(int c)
-{
-  char_u      *s;
-
-  free(last_insert);
-  last_insert = xmalloc(MB_MAXBYTES * 3 + 5);
-  s = last_insert;
-  /* Use the CTRL-V only when entering a special char */
-  if (c < ' ' || c == DEL)
-    *s++ = Ctrl_V;
-  s = add_char2buf(c, s);
-  *s++ = ESC;
-  *s++ = NUL;
-  last_insert_skip = 0;
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void free_last_insert(void)
-{
-  free(last_insert);
-  last_insert = NULL;
-  free(compl_orig_text);
-  compl_orig_text = NULL;
-}
-
-#endif
-
-/*
- * Add character "c" to buffer "s".  Escape the special meaning of K_SPECIAL
- * and CSI.  Handle multi-byte characters.
- * Returns a pointer to after the added bytes.
- */
-char_u *add_char2buf(int c, char_u *s)
-{
-  char_u temp[MB_MAXBYTES + 1];
-  int i;
-  int len;
-
-  len = (*mb_char2bytes)(c, temp);
-  for (i = 0; i < len; ++i) {
-    c = temp[i];
-    /* Need to escape K_SPECIAL and CSI like in the typeahead buffer. */
-    if (c == K_SPECIAL) {
-      *s++ = K_SPECIAL;
-      *s++ = KS_SPECIAL;
-      *s++ = KE_FILLER;
-    } else
-      *s++ = c;
-  }
-  return s;
-}
-
-/*
- * move cursor to start of line
- * if flags & BL_WHITE	move to first non-white
- * if flags & BL_SOL	move to first non-white if startofline is set,
- *			    otherwise keep "curswant" column
- * if flags & BL_FIX	don't leave the cursor on a NUL.
- */
-void beginline(int flags)
-{
-  if ((flags & BL_SOL) && !p_sol)
-    coladvance(curwin->w_curswant);
-  else {
-    curwin->w_cursor.col = 0;
-    curwin->w_cursor.coladd = 0;
-
-    if (flags & (BL_WHITE | BL_SOL)) {
-      char_u  *ptr;
-
-      for (ptr = ml_get_curline(); vim_iswhite(*ptr)
-           && !((flags & BL_FIX) && ptr[1] == NUL); ++ptr)
-        ++curwin->w_cursor.col;
-    }
-    curwin->w_set_curswant = TRUE;
-  }
-}
-
-/*
- * oneright oneleft cursor_down cursor_up
- *
- * Move one char {right,left,down,up}.
- * Doesn't move onto the NUL past the end of the line, unless it is allowed.
- * Return OK when successful, FAIL when we hit a line of file boundary.
- */
-
-int oneright(void)
-{
-  char_u      *ptr;
-  int l;
-
-  if (virtual_active()) {
-    pos_T prevpos = curwin->w_cursor;
-
-    /* Adjust for multi-wide char (excluding TAB) */
-    ptr = ml_get_cursor();
-    coladvance(getviscol() + ((*ptr != TAB && vim_isprintc(
-                                   (*mb_ptr2char)(ptr)
-                                   ))
-                              ? ptr2cells(ptr) : 1));
-    curwin->w_set_curswant = TRUE;
-    /* Return OK if the cursor moved, FAIL otherwise (at window edge). */
-    return (prevpos.col != curwin->w_cursor.col
-            || prevpos.coladd != curwin->w_cursor.coladd) ? OK : FAIL;
-  }
-
-  ptr = ml_get_cursor();
-  if (*ptr == NUL)
-    return FAIL;            /* already at the very end */
-
-  if (has_mbyte)
-    l = (*mb_ptr2len)(ptr);
-  else
-    l = 1;
-
-  /* move "l" bytes right, but don't end up on the NUL, unless 'virtualedit'
-   * contains "onemore". */
-  if (ptr[l] == NUL
-      && (ve_flags & VE_ONEMORE) == 0
-      )
-    return FAIL;
-  curwin->w_cursor.col += l;
-
-  curwin->w_set_curswant = TRUE;
-  return OK;
-}
-
-int oneleft(void)
-{
-  if (virtual_active()) {
-    int width;
-    int v = getviscol();
-
-    if (v == 0)
-      return FAIL;
-
-    /* We might get stuck on 'showbreak', skip over it. */
-    width = 1;
-    for (;; ) {
-      coladvance(v - width);
-      /* getviscol() is slow, skip it when 'showbreak' is empty and
-       * there are no multi-byte characters */
-      if ((*p_sbr == NUL
-           && !has_mbyte
-           ) || getviscol() < v)
-        break;
-      ++width;
-    }
-
-    if (curwin->w_cursor.coladd == 1) {
-      char_u *ptr;
-
-      /* Adjust for multi-wide char (not a TAB) */
-      ptr = ml_get_cursor();
-      if (*ptr != TAB && vim_isprintc(
-              (*mb_ptr2char)(ptr)
-              ) && ptr2cells(ptr) > 1)
-        curwin->w_cursor.coladd = 0;
-    }
-
-    curwin->w_set_curswant = TRUE;
-    return OK;
-  }
-
-  if (curwin->w_cursor.col == 0)
-    return FAIL;
-
-  curwin->w_set_curswant = TRUE;
-  --curwin->w_cursor.col;
-
-  /* if the character on the left of the current cursor is a multi-byte
-   * character, move to its first byte */
-  if (has_mbyte)
-    mb_adjust_cursor();
-  return OK;
-}
-
-int 
-cursor_up (
-    long n,
-    int upd_topline                    /* When TRUE: update topline */
-)
-{
-  linenr_T lnum;
-
-  if (n > 0) {
-    lnum = curwin->w_cursor.lnum;
-    /* This fails if the cursor is already in the first line or the count
-     * is larger than the line number and '-' is in 'cpoptions' */
-    if (lnum <= 1 || (n >= lnum && vim_strchr(p_cpo, CPO_MINUS) != NULL))
-      return FAIL;
-    if (n >= lnum)
-      lnum = 1;
-    else if (hasAnyFolding(curwin)) {
-      /*
-       * Count each sequence of folded lines as one logical line.
-       */
-      /* go to the start of the current fold */
-      (void)hasFolding(lnum, &lnum, NULL);
-
-      while (n--) {
-        /* move up one line */
-        --lnum;
-        if (lnum <= 1)
-          break;
-        /* If we entered a fold, move to the beginning, unless in
-         * Insert mode or when 'foldopen' contains "all": it will open
-         * in a moment. */
-        if (n > 0 || !((State & INSERT) || (fdo_flags & FDO_ALL)))
-          (void)hasFolding(lnum, &lnum, NULL);
-      }
-      if (lnum < 1)
-        lnum = 1;
-    } else
-      lnum -= n;
-    curwin->w_cursor.lnum = lnum;
-  }
-
-  /* try to advance to the column we want to be at */
-  coladvance(curwin->w_curswant);
-
-  if (upd_topline)
-    update_topline();           /* make sure curwin->w_topline is valid */
-
-  return OK;
-}
-
-/*
- * Cursor down a number of logical lines.
- */
-int 
-cursor_down (
-    long n,
-    int upd_topline                    /* When TRUE: update topline */
-)
-{
-  linenr_T lnum;
-
-  if (n > 0) {
-    lnum = curwin->w_cursor.lnum;
-    /* Move to last line of fold, will fail if it's the end-of-file. */
-    (void)hasFolding(lnum, NULL, &lnum);
-    /* This fails if the cursor is already in the last line or would move
-     * beyond the last line and '-' is in 'cpoptions' */
-    if (lnum >= curbuf->b_ml.ml_line_count
-        || (lnum + n > curbuf->b_ml.ml_line_count
-            && vim_strchr(p_cpo, CPO_MINUS) != NULL))
-      return FAIL;
-    if (lnum + n >= curbuf->b_ml.ml_line_count)
-      lnum = curbuf->b_ml.ml_line_count;
-    else if (hasAnyFolding(curwin)) {
-      linenr_T last;
-
-      /* count each sequence of folded lines as one logical line */
-      while (n--) {
-        if (hasFolding(lnum, NULL, &last))
-          lnum = last + 1;
-        else
-          ++lnum;
-        if (lnum >= curbuf->b_ml.ml_line_count)
-          break;
-      }
-      if (lnum > curbuf->b_ml.ml_line_count)
-        lnum = curbuf->b_ml.ml_line_count;
-    } else
-      lnum += n;
-    curwin->w_cursor.lnum = lnum;
-  }
-
-  /* try to advance to the column we want to be at */
-  coladvance(curwin->w_curswant);
-
-  if (upd_topline)
-    update_topline();           /* make sure curwin->w_topline is valid */
-
-  return OK;
-}
-
-/*
- * Stuff the last inserted text in the read buffer.
- * Last_insert actually is a copy of the redo buffer, so we
- * first have to remove the command.
- */
-int 
-stuff_inserted (
-    int c,                  /* Command character to be inserted */
-    long count,             /* Repeat this many times */
-    int no_esc             /* Don't add an ESC at the end */
-)
-{
-  char_u      *esc_ptr;
-  char_u      *ptr;
-  char_u      *last_ptr;
-  char_u last = NUL;
-
-  ptr = get_last_insert();
-  if (ptr == NULL) {
-    EMSG(_(e_noinstext));
-    return FAIL;
-  }
-
-  /* may want to stuff the command character, to start Insert mode */
-  if (c != NUL)
-    stuffcharReadbuff(c);
-  if ((esc_ptr = (char_u *)vim_strrchr(ptr, ESC)) != NULL)
-    *esc_ptr = NUL;         /* remove the ESC */
-
-  /* when the last char is either "0" or "^" it will be quoted if no ESC
-   * comes after it OR if it will inserted more than once and "ptr"
-   * starts with ^D.	-- Acevedo
-   */
-  last_ptr = (esc_ptr ? esc_ptr : ptr + STRLEN(ptr)) - 1;
-  if (last_ptr >= ptr && (*last_ptr == '0' || *last_ptr == '^')
-      && (no_esc || (*ptr == Ctrl_D && count > 1))) {
-    last = *last_ptr;
-    *last_ptr = NUL;
-  }
-
-  do {
-    stuffReadbuff(ptr);
-    /* a trailing "0" is inserted as "<C-V>048", "^" as "<C-V>^" */
-    if (last)
-      stuffReadbuff((char_u *)(last == '0'
-                               ? IF_EB("\026\060\064\070", CTRL_V_STR "xf0")
-                               : IF_EB("\026^", CTRL_V_STR "^")));
-  } while (--count > 0);
-
-  if (last)
-    *last_ptr = last;
-
-  if (esc_ptr != NULL)
-    *esc_ptr = ESC;         /* put the ESC back */
-
-  /* may want to stuff a trailing ESC, to get out of Insert mode */
-  if (!no_esc)
-    stuffcharReadbuff(ESC);
-
-  return OK;
-}
-
-char_u *get_last_insert(void)
-{
-  if (last_insert == NULL)
-    return NULL;
-  return last_insert + last_insert_skip;
-}
-
-/*
- * Get last inserted string, and remove trailing <Esc>.
- * Returns pointer to allocated memory (must be freed) or NULL.
- */
-char_u *get_last_insert_save(void)
-{
-  char_u      *s;
-  int len;
-
-  if (last_insert == NULL)
-    return NULL;
-  s = vim_strsave(last_insert + last_insert_skip);
-  if (s != NULL) {
-    len = (int)STRLEN(s);
-    if (len > 0 && s[len - 1] == ESC)           /* remove trailing ESC */
-      s[len - 1] = NUL;
-  }
-  return s;
-}
-
-/*
- * Check the word in front of the cursor for an abbreviation.
- * Called when the non-id character "c" has been entered.
- * When an abbreviation is recognized it is removed from the text and
- * the replacement string is inserted in typebuf.tb_buf[], followed by "c".
- */
-static int echeck_abbr(int c)
-{
-  /* Don't check for abbreviation in paste mode, when disabled and just
-   * after moving around with cursor keys. */
-  if (p_paste || no_abbr || arrow_used)
-    return FALSE;
-
-  return check_abbr(c, ml_get_curline(), curwin->w_cursor.col,
-      curwin->w_cursor.lnum == Insstart.lnum ? Insstart.col : 0);
-}
-
-/*
- * replace-stack functions
- *
- * When replacing characters, the replaced characters are remembered for each
- * new character.  This is used to re-insert the old text when backspacing.
- *
- * There is a NUL headed list of characters for each character that is
- * currently in the file after the insertion point.  When BS is used, one NUL
- * headed list is put back for the deleted character.
- *
- * For a newline, there are two NUL headed lists.  One contains the characters
- * that the NL replaced.  The extra one stores the characters after the cursor
- * that were deleted (always white space).
- *
- * Replace_offset is normally 0, in which case replace_push will add a new
- * character at the end of the stack.  If replace_offset is not 0, that many
- * characters will be left on the stack above the newly inserted character.
- */
-
-static char_u   *replace_stack = NULL;
-static ssize_t replace_stack_nr = 0;           /* next entry in replace stack */
-static ssize_t replace_stack_len = 0;          /* max. number of entries */
-
-void 
-replace_push (
-    int c              /* character that is replaced (NUL is none) */
-)
-{
-  if (replace_stack_nr < replace_offset)        /* nothing to do */
-    return;
-
-  // TODO(philix): use xrealloc in replace_push()
-  if (replace_stack_len <= replace_stack_nr) {
-    replace_stack_len += 50;
-    void *aux = xmalloc(replace_stack_len);
-    if (replace_stack != NULL) {
-      memmove(aux, replace_stack, replace_stack_nr);
-      free(replace_stack);
-    }
-    replace_stack = aux;
-  }
-  char_u *p = replace_stack + replace_stack_nr - replace_offset;
-  if (replace_offset)
-    memmove(p + 1, p, replace_offset);
-  *p = (char_u)c;
-  ++replace_stack_nr;
-}
-
-/*
- * Push a character onto the replace stack.  Handles a multi-byte character in
- * reverse byte order, so that the first byte is popped off first.
- * Return the number of bytes done (includes composing characters).
- */
-int replace_push_mb(char_u *p)
-{
-  int l = (*mb_ptr2len)(p);
-  int j;
-
-  for (j = l - 1; j >= 0; --j)
-    replace_push(p[j]);
-  return l;
-}
-
-/*
- * Pop one item from the replace stack.
- * return -1 if stack empty
- * return replaced character or NUL otherwise
- */
-static int replace_pop(void)
-{
-  if (replace_stack_nr == 0)
-    return -1;
-  return (int)replace_stack[--replace_stack_nr];
-}
-
-/*
- * Join the top two items on the replace stack.  This removes to "off"'th NUL
- * encountered.
- */
-static void 
-replace_join (
-    int off                /* offset for which NUL to remove */
-)
-{
-  int i;
-
-  for (i = replace_stack_nr; --i >= 0; )
-    if (replace_stack[i] == NUL && off-- <= 0) {
-      --replace_stack_nr;
-      memmove(replace_stack + i, replace_stack + i + 1,
-          (size_t)(replace_stack_nr - i));
-      return;
-    }
-}
-
-/*
- * Pop bytes from the replace stack until a NUL is found, and insert them
- * before the cursor.  Can only be used in REPLACE or VREPLACE mode.
- */
-static void replace_pop_ins(void)
-{
-  int cc;
-  int oldState = State;
-
-  State = NORMAL;                       /* don't want REPLACE here */
-  while ((cc = replace_pop()) > 0) {
-    mb_replace_pop_ins(cc);
-    dec_cursor();
-  }
-  State = oldState;
-}
-
-/*
- * Insert bytes popped from the replace stack. "cc" is the first byte.  If it
- * indicates a multi-byte char, pop the other bytes too.
- */
-static void mb_replace_pop_ins(int cc)
-{
-  int n;
-  char_u buf[MB_MAXBYTES + 1];
-  int i;
-  int c;
-
-  if (has_mbyte && (n = MB_BYTE2LEN(cc)) > 1) {
-    buf[0] = cc;
-    for (i = 1; i < n; ++i)
-      buf[i] = replace_pop();
-    ins_bytes_len(buf, n);
-  } else
-    ins_char(cc);
-
-  if (enc_utf8)
-    /* Handle composing chars. */
-    for (;; ) {
-      c = replace_pop();
-      if (c == -1)                  /* stack empty */
-        break;
-      if ((n = MB_BYTE2LEN(c)) == 1) {
-        /* Not a multi-byte char, put it back. */
-        replace_push(c);
-        break;
-      } else {
-        buf[0] = c;
-        for (i = 1; i < n; ++i)
-          buf[i] = replace_pop();
-        if (utf_iscomposing(utf_ptr2char(buf)))
-          ins_bytes_len(buf, n);
-        else {
-          /* Not a composing char, put it back. */
-          for (i = n - 1; i >= 0; --i)
-            replace_push(buf[i]);
-          break;
-        }
-      }
-    }
-}
-
-/*
- * make the replace stack empty
- * (called when exiting replace mode)
- */
-static void replace_flush(void)
-{
-  free(replace_stack);
-  replace_stack = NULL;
-  replace_stack_len = 0;
-  replace_stack_nr = 0;
-}
-
-/*
- * Handle doing a BS for one character.
- * cc < 0: replace stack empty, just move cursor
- * cc == 0: character was inserted, delete it
- * cc > 0: character was replaced, put cc (first byte of original char) back
- * and check for more characters to be put back
- * When "limit_col" is >= 0, don't delete before this column.  Matters when
- * using composing characters, use del_char_after_col() instead of del_char().
- */
-static void replace_do_bs(int limit_col)
-{
-  int cc;
-  int orig_len = 0;
-  int ins_len;
-  int orig_vcols = 0;
-  colnr_T start_vcol;
-  char_u      *p;
-  int i;
-  int vcol;
-
-  cc = replace_pop();
-  if (cc > 0) {
-    if (State & VREPLACE_FLAG) {
-      /* Get the number of screen cells used by the character we are
-       * going to delete. */
-      getvcol(curwin, &curwin->w_cursor, NULL, &start_vcol, NULL);
-      orig_vcols = chartabsize(ml_get_cursor(), start_vcol);
-    }
-    if (has_mbyte) {
-      (void)del_char_after_col(limit_col);
-      if (State & VREPLACE_FLAG)
-        orig_len = (int)STRLEN(ml_get_cursor());
-      replace_push(cc);
-    } else {
-      pchar_cursor(cc);
-      if (State & VREPLACE_FLAG)
-        orig_len = (int)STRLEN(ml_get_cursor()) - 1;
-    }
-    replace_pop_ins();
-
-    if (State & VREPLACE_FLAG) {
-      /* Get the number of screen cells used by the inserted characters */
-      p = ml_get_cursor();
-      ins_len = (int)STRLEN(p) - orig_len;
-      vcol = start_vcol;
-      for (i = 0; i < ins_len; ++i) {
-        vcol += chartabsize(p + i, vcol);
-        i += (*mb_ptr2len)(p) - 1;
-      }
-      vcol -= start_vcol;
-
-      /* Delete spaces that were inserted after the cursor to keep the
-       * text aligned. */
-      curwin->w_cursor.col += ins_len;
-      while (vcol > orig_vcols && gchar_cursor() == ' ') {
-        del_char(FALSE);
-        ++orig_vcols;
-      }
-      curwin->w_cursor.col -= ins_len;
-    }
-
-    /* mark the buffer as changed and prepare for displaying */
-    changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
-  } else if (cc == 0)
-    (void)del_char_after_col(limit_col);
-}
-
-/*
- * Return TRUE if C-indenting is on.
- */
-static int cindent_on(void) {
-  return !p_paste && (curbuf->b_p_cin
-                      || *curbuf->b_p_inde != NUL
-                      );
-}
-
-/*
- * Re-indent the current line, based on the current contents of it and the
- * surrounding lines. Fixing the cursor position seems really easy -- I'm very
- * confused what all the part that handles Control-T is doing that I'm not.
- * "get_the_indent" should be get_c_indent, get_expr_indent or get_lisp_indent.
- */
-
-void fixthisline(get_the_indent)
-int (*get_the_indent)(void);
-{
-  change_indent(INDENT_SET, get_the_indent(), FALSE, 0, TRUE);
-  if (linewhite(curwin->w_cursor.lnum))
-    did_ai = TRUE;          /* delete the indent if the line stays empty */
-}
-
-void fix_indent(void) {
-  if (p_paste)
-    return;
-  if (curbuf->b_p_lisp && curbuf->b_p_ai)
-    fixthisline(get_lisp_indent);
-  else if (cindent_on())
-    do_c_expr_indent();
-}
-
-/*
- * return TRUE if 'cinkeys' contains the key "keytyped",
- * when == '*':	    Only if key is preceded with '*'	(indent before insert)
- * when == '!':	    Only if key is preceded with '!'	(don't insert)
- * when == ' ':	    Only if key is not preceded with '*'(indent afterwards)
- *
- * "keytyped" can have a few special values:
- * KEY_OPEN_FORW
- * KEY_OPEN_BACK
- * KEY_COMPLETE	    just finished completion.
- *
- * If line_is_empty is TRUE accept keys with '0' before them.
- */
-int in_cinkeys(int keytyped, int when, int line_is_empty)
-{
-  char_u      *look;
-  int try_match;
-  int try_match_word;
-  char_u      *p;
-  char_u      *line;
-  int icase;
-  int i;
-
-  if (keytyped == NUL)
-    /* Can happen with CTRL-Y and CTRL-E on a short line. */
-    return FALSE;
-
-  if (*curbuf->b_p_inde != NUL)
-    look = curbuf->b_p_indk;            /* 'indentexpr' set: use 'indentkeys' */
-  else
-    look = curbuf->b_p_cink;            /* 'indentexpr' empty: use 'cinkeys' */
-  while (*look) {
-    /*
-     * Find out if we want to try a match with this key, depending on
-     * 'when' and a '*' or '!' before the key.
-     */
-    switch (when) {
-    case '*': try_match = (*look == '*'); break;
-    case '!': try_match = (*look == '!'); break;
-    default: try_match = (*look != '*'); break;
-    }
-    if (*look == '*' || *look == '!')
-      ++look;
-
-    /*
-     * If there is a '0', only accept a match if the line is empty.
-     * But may still match when typing last char of a word.
-     */
-    if (*look == '0') {
-      try_match_word = try_match;
-      if (!line_is_empty)
-        try_match = FALSE;
-      ++look;
-    } else
-      try_match_word = FALSE;
-
-    /*
-     * does it look like a control character?
-     */
-    if (*look == '^'
-        && look[1] >= '?' && look[1] <= '_'
-        ) {
-      if (try_match && keytyped == Ctrl_chr(look[1]))
-        return TRUE;
-      look += 2;
-    }
-    /*
-     * 'o' means "o" command, open forward.
-     * 'O' means "O" command, open backward.
-     */
-    else if (*look == 'o') {
-      if (try_match && keytyped == KEY_OPEN_FORW)
-        return TRUE;
-      ++look;
-    } else if (*look == 'O') {
-      if (try_match && keytyped == KEY_OPEN_BACK)
-        return TRUE;
-      ++look;
-    }
-    /*
-     * 'e' means to check for "else" at start of line and just before the
-     * cursor.
-     */
-    else if (*look == 'e') {
-      if (try_match && keytyped == 'e' && curwin->w_cursor.col >= 4) {
-        p = ml_get_curline();
-        if (skipwhite(p) == p + curwin->w_cursor.col - 4 &&
-            STRNCMP(p + curwin->w_cursor.col - 4, "else", 4) == 0)
-          return TRUE;
-      }
-      ++look;
-    }
-    /*
-     * ':' only causes an indent if it is at the end of a label or case
-     * statement, or when it was before typing the ':' (to fix
-     * class::method for C++).
-     */
-    else if (*look == ':') {
-      if (try_match && keytyped == ':') {
-        p = ml_get_curline();
-        if (cin_iscase(p, FALSE) || cin_isscopedecl(p) || cin_islabel())
-          return TRUE;
-        /* Need to get the line again after cin_islabel(). */
-        p = ml_get_curline();
-        if (curwin->w_cursor.col > 2
-            && p[curwin->w_cursor.col - 1] == ':'
-            && p[curwin->w_cursor.col - 2] == ':') {
-          p[curwin->w_cursor.col - 1] = ' ';
-          i = (cin_iscase(p, FALSE) || cin_isscopedecl(p)
-               || cin_islabel());
-          p = ml_get_curline();
-          p[curwin->w_cursor.col - 1] = ':';
-          if (i)
-            return TRUE;
-        }
-      }
-      ++look;
-    }
-    /*
-     * Is it a key in <>, maybe?
-     */
-    else if (*look == '<') {
-      if (try_match) {
-        /*
-         * make up some named keys <o>, <O>, <e>, <0>, <>>, <<>, <*>,
-         * <:> and <!> so that people can re-indent on o, O, e, 0, <,
-         * >, *, : and ! keys if they really really want to.
-         */
-        if (vim_strchr((char_u *)"<>!*oOe0:", look[1]) != NULL
-            && keytyped == look[1])
-          return TRUE;
-
-        if (keytyped == get_special_key_code(look + 1))
-          return TRUE;
-      }
-      while (*look && *look != '>')
-        look++;
-      while (*look == '>')
-        look++;
-    }
-    /*
-     * Is it a word: "=word"?
-     */
-    else if (*look == '=' && look[1] != ',' && look[1] != NUL) {
-      ++look;
-      if (*look == '~') {
-        icase = TRUE;
-        ++look;
-      } else
-        icase = FALSE;
-      p = vim_strchr(look, ',');
-      if (p == NULL)
-        p = look + STRLEN(look);
-      if ((try_match || try_match_word)
-          && curwin->w_cursor.col >= (colnr_T)(p - look)) {
-        int match = FALSE;
-
-        if (keytyped == KEY_COMPLETE) {
-          char_u      *s;
-
-          /* Just completed a word, check if it starts with "look".
-           * search back for the start of a word. */
-          line = ml_get_curline();
-          if (has_mbyte) {
-            char_u  *n;
-
-            for (s = line + curwin->w_cursor.col; s > line; s = n) {
-              n = mb_prevptr(line, s);
-              if (!vim_iswordp(n))
-                break;
-            }
-          } else
-            for (s = line + curwin->w_cursor.col; s > line; --s)
-              if (!vim_iswordc(s[-1]))
-                break;
-          if (s + (p - look) <= line + curwin->w_cursor.col
-              && (icase
-                  ? MB_STRNICMP(s, look, p - look)
-                  : STRNCMP(s, look, p - look)) == 0)
-            match = TRUE;
-        } else
-        /* TODO: multi-byte */
-        if (keytyped == (int)p[-1] || (icase && keytyped < 256
-                                       && TOLOWER_LOC(keytyped) ==
-                                       TOLOWER_LOC((int)p[-1]))) {
-          line = ml_get_cursor();
-          if ((curwin->w_cursor.col == (colnr_T)(p - look)
-               || !vim_iswordc(line[-(p - look) - 1]))
-              && (icase
-                  ? MB_STRNICMP(line - (p - look), look, p - look)
-                  : STRNCMP(line - (p - look), look, p - look))
-              == 0)
-            match = TRUE;
-        }
-        if (match && try_match_word && !try_match) {
-          /* "0=word": Check if there are only blanks before the
-           * word. */
-          line = ml_get_curline();
-          if ((int)(skipwhite(line) - line) !=
-              (int)(curwin->w_cursor.col - (p - look)))
-            match = FALSE;
-        }
-        if (match)
-          return TRUE;
-      }
-      look = p;
-    }
-    /*
-     * ok, it's a boring generic character.
-     */
-    else {
-      if (try_match && *look == keytyped)
-        return TRUE;
-      ++look;
-    }
-
-    /*
-     * Skip over ", ".
-     */
-    look = skip_to_option_part(look);
-  }
-  return FALSE;
-}
-
-/*
- * Map Hebrew keyboard when in hkmap mode.
- */
-int hkmap(int c)
-{
-  if (p_hkmapp) {   /* phonetic mapping, by Ilya Dogolazky */
-    enum {hALEF=0, BET, GIMEL, DALET, HEI, VAV, ZAIN, HET, TET, IUD,
-          KAFsofit, hKAF, LAMED, MEMsofit, MEM, NUNsofit, NUN, SAMEH, AIN,
-          PEIsofit, PEI, ZADIsofit, ZADI, KOF, RESH, hSHIN, TAV};
-    static char_u map[26] =
-    {(char_u)hALEF /*a*/, (char_u)BET /*b*/, (char_u)hKAF /*c*/,
-     (char_u)DALET /*d*/, (char_u)-1 /*e*/, (char_u)PEIsofit /*f*/,
-     (char_u)GIMEL /*g*/, (char_u)HEI /*h*/, (char_u)IUD /*i*/,
-     (char_u)HET /*j*/, (char_u)KOF /*k*/, (char_u)LAMED /*l*/,
-     (char_u)MEM /*m*/, (char_u)NUN /*n*/, (char_u)SAMEH /*o*/,
-     (char_u)PEI /*p*/, (char_u)-1 /*q*/, (char_u)RESH /*r*/,
-     (char_u)ZAIN /*s*/, (char_u)TAV /*t*/, (char_u)TET /*u*/,
-     (char_u)VAV /*v*/, (char_u)hSHIN /*w*/, (char_u)-1 /*x*/,
-     (char_u)AIN /*y*/, (char_u)ZADI /*z*/};
-
-    if (c == 'N' || c == 'M' || c == 'P' || c == 'C' || c == 'Z')
-      return (int)(map[CharOrd(c)] - 1 + p_aleph);
-    /* '-1'='sofit' */
-    else if (c == 'x')
-      return 'X';
-    else if (c == 'q')
-      return '\'';       /* {geresh}={'} */
-    else if (c == 246)
-      return ' ';        /* \"o --> ' ' for a german keyboard */
-    else if (c == 228)
-      return ' ';        /* \"a --> ' '      -- / --	       */
-    else if (c == 252)
-      return ' ';        /* \"u --> ' '      -- / --	       */
-    /* NOTE: islower() does not do the right thing for us on Linux so we
-     * do this the same was as 5.7 and previous, so it works correctly on
-     * all systems.  Specifically, the e.g. Delete and Arrow keys are
-     * munged and won't work if e.g. searching for Hebrew text.
-     */
-    else if (c >= 'a' && c <= 'z')
-      return (int)(map[CharOrdLow(c)] + p_aleph);
-    else
-      return c;
-  } else {
-    switch (c) {
-    case '`':   return ';';
-    case '/':   return '.';
-    case '\'':  return ',';
-    case 'q':   return '/';
-    case 'w':   return '\'';
-
-    /* Hebrew letters - set offset from 'a' */
-    case ',':   c = '{'; break;
-    case '.':   c = 'v'; break;
-    case ';':   c = 't'; break;
-    default: {
-      static char str[] = "zqbcxlsjphmkwonu ydafe rig";
-
-      if (c < 'a' || c > 'z')
-        return c;
-      c = str[CharOrdLow(c)];
-      break;
-    }
-    }
-
-    return (int)(CharOrdLow(c) + p_aleph);
-  }
-}
-
-static void ins_reg(void)
-{
-  int need_redraw = FALSE;
-  int regname;
-  int literally = 0;
-  int vis_active = VIsual_active;
-
-  /*
-   * If we are going to wait for a character, show a '"'.
-   */
-  pc_status = PC_STATUS_UNSET;
-  if (redrawing() && !char_avail()) {
-    /* may need to redraw when no more chars available now */
-    ins_redraw(FALSE);
-
-    edit_putchar('"', TRUE);
-    add_to_showcmd_c(Ctrl_R);
-  }
-
-#ifdef USE_ON_FLY_SCROLL
-  dont_scroll = TRUE;           /* disallow scrolling here */
-#endif
-
-  /*
-   * Don't map the register name. This also prevents the mode message to be
-   * deleted when ESC is hit.
-   */
-  ++no_mapping;
-  regname = plain_vgetc();
-  LANGMAP_ADJUST(regname, TRUE);
-  if (regname == Ctrl_R || regname == Ctrl_O || regname == Ctrl_P) {
-    /* Get a third key for literal register insertion */
-    literally = regname;
-    add_to_showcmd_c(literally);
-    regname = plain_vgetc();
-    LANGMAP_ADJUST(regname, TRUE);
-  }
-  --no_mapping;
-
-  /* Don't call u_sync() while typing the expression or giving an error
-   * message for it. Only call it explicitly. */
-  ++no_u_sync;
-  if (regname == '=') {
-# ifdef USE_IM_CONTROL
-    int im_on = im_get_status();
-# endif
-    /* Sync undo when evaluating the expression calls setline() or
-     * append(), so that it can be undone separately. */
-    u_sync_once = 2;
-
-    regname = get_expr_register();
-# ifdef USE_IM_CONTROL
-    /* Restore the Input Method. */
-    if (im_on)
-      im_set_active(TRUE);
-# endif
-  }
-  if (regname == NUL || !valid_yank_reg(regname, FALSE)) {
-    vim_beep();
-    need_redraw = TRUE;         /* remove the '"' */
-  } else {
-    if (literally == Ctrl_O || literally == Ctrl_P) {
-      /* Append the command to the redo buffer. */
-      AppendCharToRedobuff(Ctrl_R);
-      AppendCharToRedobuff(literally);
-      AppendCharToRedobuff(regname);
-
-      do_put(regname, BACKWARD, 1L,
-          (literally == Ctrl_P ? PUT_FIXINDENT : 0) | PUT_CURSEND);
-    } else if (insert_reg(regname, literally) == FAIL) {
-      vim_beep();
-      need_redraw = TRUE;       /* remove the '"' */
-    } else if (stop_insert_mode)
-      /* When the '=' register was used and a function was invoked that
-       * did ":stopinsert" then stuff_empty() returns FALSE but we won't
-       * insert anything, need to remove the '"' */
-      need_redraw = TRUE;
-
-  }
-  --no_u_sync;
-  if (u_sync_once == 1)
-    ins_need_undo = TRUE;
-  u_sync_once = 0;
-  clear_showcmd();
-
-  /* If the inserted register is empty, we need to remove the '"' */
-  if (need_redraw || stuff_empty())
-    edit_unputchar();
-
-  /* Disallow starting Visual mode here, would get a weird mode. */
-  if (!vis_active && VIsual_active)
-    end_visual_mode();
-}
-
-/*
- * CTRL-G commands in Insert mode.
- */
-static void ins_ctrl_g(void)
-{
-  int c;
-
-  /* Right after CTRL-X the cursor will be after the ruler. */
-  setcursor();
-
-  /*
-   * Don't map the second key. This also prevents the mode message to be
-   * deleted when ESC is hit.
-   */
-  ++no_mapping;
-  c = plain_vgetc();
-  --no_mapping;
-  switch (c) {
-  /* CTRL-G k and CTRL-G <Up>: cursor up to Insstart.col */
-  case K_UP:
-  case Ctrl_K:
-  case 'k': ins_up(TRUE);
-    break;
-
-  /* CTRL-G j and CTRL-G <Down>: cursor down to Insstart.col */
-  case K_DOWN:
-  case Ctrl_J:
-  case 'j': ins_down(TRUE);
-    break;
-
-  /* CTRL-G u: start new undoable edit */
-  case 'u': u_sync(TRUE);
-    ins_need_undo = TRUE;
-
-    /* Need to reset Insstart, esp. because a BS that joins
-     * a line to the previous one must save for undo. */
-    update_Insstart_orig = false;
-    Insstart = curwin->w_cursor;
-    break;
-
-  /* Unknown CTRL-G command, reserved for future expansion. */
-  default:  vim_beep();
-  }
-}
-
-/*
- * CTRL-^ in Insert mode.
- */
-static void ins_ctrl_hat(void)
-{
-  if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE)) {
-    /* ":lmap" mappings exists, Toggle use of ":lmap" mappings. */
-    if (State & LANGMAP) {
-      curbuf->b_p_iminsert = B_IMODE_NONE;
-      State &= ~LANGMAP;
-    } else {
-      curbuf->b_p_iminsert = B_IMODE_LMAP;
-      State |= LANGMAP;
-#ifdef USE_IM_CONTROL
-      im_set_active(FALSE);
-#endif
-    }
-  }
-#ifdef USE_IM_CONTROL
-  else {
-    /* There are no ":lmap" mappings, toggle IM */
-    if (im_get_status()) {
-      curbuf->b_p_iminsert = B_IMODE_NONE;
-      im_set_active(FALSE);
-    } else {
-      curbuf->b_p_iminsert = B_IMODE_IM;
-      State &= ~LANGMAP;
-      im_set_active(TRUE);
-    }
-  }
-#endif
-  set_iminsert_global();
-  showmode();
-  /* Show/unshow value of 'keymap' in status lines. */
-  status_redraw_curbuf();
-}
-
-/*
- * Handle ESC in insert mode.
- * Returns TRUE when leaving insert mode, FALSE when going to repeat the
- * insert.
- */
-static int 
-ins_esc (
-    long *count,
-    int cmdchar,
-    int nomove                 /* don't move cursor */
-)
-{
-  int temp;
-  static int disabled_redraw = FALSE;
-
-  check_spell_redraw();
-
-  temp = curwin->w_cursor.col;
-  if (disabled_redraw) {
-    --RedrawingDisabled;
-    disabled_redraw = FALSE;
-  }
-  if (!arrow_used) {
-    /*
-     * Don't append the ESC for "r<CR>" and "grx".
-     * When 'insertmode' is set only CTRL-L stops Insert mode.  Needed for
-     * when "count" is non-zero.
-     */
-    if (cmdchar != 'r' && cmdchar != 'v')
-      AppendToRedobuff(p_im ? (char_u *)"\014" : ESC_STR);
-
-    /*
-     * Repeating insert may take a long time.  Check for
-     * interrupt now and then.
-     */
-    if (*count > 0) {
-      line_breakcheck();
-      if (got_int)
-        *count = 0;
-    }
-
-    if (--*count > 0) {         /* repeat what was typed */
-      /* Vi repeats the insert without replacing characters. */
-      if (vim_strchr(p_cpo, CPO_REPLCNT) != NULL)
-        State &= ~REPLACE_FLAG;
-
-      (void)start_redo_ins();
-      if (cmdchar == 'r' || cmdchar == 'v')
-        stuffReadbuff(ESC_STR);         /* no ESC in redo buffer */
-      ++RedrawingDisabled;
-      disabled_redraw = TRUE;
-      return FALSE;             /* repeat the insert */
-    }
-    stop_insert(&curwin->w_cursor, TRUE, nomove);
-    undisplay_dollar();
-  }
-
-  /* When an autoindent was removed, curswant stays after the
-   * indent */
-  if (restart_edit == NUL && (colnr_T)temp == curwin->w_cursor.col)
-    curwin->w_set_curswant = TRUE;
-
-  /* Remember the last Insert position in the '^ mark. */
-  if (!cmdmod.keepjumps)
-    curbuf->b_last_insert = curwin->w_cursor;
-
-  /*
-   * The cursor should end up on the last inserted character.
-   * Don't do it for CTRL-O, unless past the end of the line.
-   */
-  if (!nomove
-      && (curwin->w_cursor.col != 0
-          || curwin->w_cursor.coladd > 0
-          )
-      && (restart_edit == NUL
-          || (gchar_cursor() == NUL
-              && !VIsual_active
-              ))
-      && !revins_on
-      ) {
-    if (curwin->w_cursor.coladd > 0 || ve_flags == VE_ALL) {
-      oneleft();
-      if (restart_edit != NUL)
-        ++curwin->w_cursor.coladd;
-    } else {
-      --curwin->w_cursor.col;
-      /* Correct cursor for multi-byte character. */
-      if (has_mbyte)
-        mb_adjust_cursor();
-    }
-  }
-
-#ifdef USE_IM_CONTROL
-  /* Disable IM to allow typing English directly for Normal mode commands.
-   * When ":lmap" is enabled don't change 'iminsert' (IM can be enabled as
-   * well). */
-  if (!(State & LANGMAP))
-    im_save_status(&curbuf->b_p_iminsert);
-  im_set_active(FALSE);
-#endif
-
-  State = NORMAL;
-  /* need to position cursor again (e.g. when on a TAB ) */
-  changed_cline_bef_curs();
-
-  setmouse();
-  ui_cursor_shape();            /* may show different cursor shape */
-
-  /*
-   * When recording or for CTRL-O, need to display the new mode.
-   * Otherwise remove the mode message.
-   */
-  if (Recording || restart_edit != NUL)
-    showmode();
-  else if (p_smd)
-    MSG("");
-
-  return TRUE;              /* exit Insert mode */
-}
-
-/*
- * Toggle language: hkmap and revins_on.
- * Move to end of reverse inserted text.
- */
-static void ins_ctrl_(void)
-{
-  if (revins_on && revins_chars && revins_scol >= 0) {
-    while (gchar_cursor() != NUL && revins_chars--)
-      ++curwin->w_cursor.col;
-  }
-  p_ri = !p_ri;
-  revins_on = (State == INSERT && p_ri);
-  if (revins_on) {
-    revins_scol = curwin->w_cursor.col;
-    revins_legal++;
-    revins_chars = 0;
-    undisplay_dollar();
-  } else
-    revins_scol = -1;
-  if (p_altkeymap) {
-    /*
-     * to be consistent also for redo command, using '.'
-     * set arrow_used to true and stop it - causing to redo
-     * characters entered in one mode (normal/reverse insert).
-     */
-    arrow_used = TRUE;
-    (void)stop_arrow();
-    p_fkmap = curwin->w_p_rl ^ p_ri;
-    if (p_fkmap && p_ri)
-      State = INSERT;
-  } else
-    p_hkmap = curwin->w_p_rl ^ p_ri;        /* be consistent! */
-  showmode();
-}
-
-/*
- * If 'keymodel' contains "startsel", may start selection.
- * Returns TRUE when a CTRL-O and other keys stuffed.
- */
-static int ins_start_select(int c)
-{
-  if (km_startsel)
-    switch (c) {
-    case K_KHOME:
-    case K_KEND:
-    case K_PAGEUP:
-    case K_KPAGEUP:
-    case K_PAGEDOWN:
-    case K_KPAGEDOWN:
-      if (!(mod_mask & MOD_MASK_SHIFT))
-        break;
-    /* FALLTHROUGH */
-    case K_S_LEFT:
-    case K_S_RIGHT:
-    case K_S_UP:
-    case K_S_DOWN:
-    case K_S_END:
-    case K_S_HOME:
-      /* Start selection right away, the cursor can move with
-       * CTRL-O when beyond the end of the line. */
-      start_selection();
-
-      /* Execute the key in (insert) Select mode. */
-      stuffcharReadbuff(Ctrl_O);
-      if (mod_mask) {
-        char_u buf[4];
-
-        buf[0] = K_SPECIAL;
-        buf[1] = KS_MODIFIER;
-        buf[2] = mod_mask;
-        buf[3] = NUL;
-        stuffReadbuff(buf);
-      }
-      stuffcharReadbuff(c);
-      return TRUE;
-    }
-  return FALSE;
-}
-
-/*
- * <Insert> key in Insert mode: toggle insert/replace mode.
- */
-static void ins_insert(int replaceState)
-{
-  if (p_fkmap && p_ri) {
-    beep_flush();
-    EMSG(farsi_text_3);         /* encoded in Farsi */
-    return;
-  }
-
-  set_vim_var_string(VV_INSERTMODE,
-      (char_u *)((State & REPLACE_FLAG) ? "i" :
-                 replaceState == VREPLACE ? "v" :
-                 "r"), 1);
-  apply_autocmds(EVENT_INSERTCHANGE, NULL, NULL, FALSE, curbuf);
-  if (State & REPLACE_FLAG)
-    State = INSERT | (State & LANGMAP);
-  else
-    State = replaceState | (State & LANGMAP);
-  AppendCharToRedobuff(K_INS);
-  showmode();
-  ui_cursor_shape();            /* may show different cursor shape */
-}
-
-/*
- * Pressed CTRL-O in Insert mode.
- */
-static void ins_ctrl_o(void)
-{
-  if (State & VREPLACE_FLAG)
-    restart_edit = 'V';
-  else if (State & REPLACE_FLAG)
-    restart_edit = 'R';
-  else
-    restart_edit = 'I';
-  if (virtual_active())
-    ins_at_eol = FALSE;         /* cursor always keeps its column */
-  else
-    ins_at_eol = (gchar_cursor() == NUL);
-}
-
-/*
- * If the cursor is on an indent, ^T/^D insert/delete one
- * shiftwidth.	Otherwise ^T/^D behave like a "<<" or ">>".
- * Always round the indent to 'shiftwidth', this is compatible
- * with vi.  But vi only supports ^T and ^D after an
- * autoindent, we support it everywhere.
- */
-static void ins_shift(int c, int lastc)
-{
-  if (stop_arrow() == FAIL)
-    return;
-  AppendCharToRedobuff(c);
-
-  /*
-   * 0^D and ^^D: remove all indent.
-   */
-  if (c == Ctrl_D && (lastc == '0' || lastc == '^')
-      && curwin->w_cursor.col > 0) {
-    --curwin->w_cursor.col;
-    (void)del_char(FALSE);              /* delete the '^' or '0' */
-    /* In Replace mode, restore the characters that '^' or '0' replaced. */
-    if (State & REPLACE_FLAG)
-      replace_pop_ins();
-    if (lastc == '^')
-      old_indent = get_indent();        /* remember curr. indent */
-    change_indent(INDENT_SET, 0, TRUE, 0, TRUE);
-  } else
-    change_indent(c == Ctrl_D ? INDENT_DEC : INDENT_INC, 0, TRUE, 0, TRUE);
-
-  if (did_ai && *skipwhite(ml_get_curline()) != NUL)
-    did_ai = FALSE;
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-  can_cindent = FALSE;          /* no cindenting after ^D or ^T */
-}
-
-static void ins_del(void)
-{
-  int temp;
-
-  if (stop_arrow() == FAIL)
-    return;
-  if (gchar_cursor() == NUL) {          /* delete newline */
-    temp = curwin->w_cursor.col;
-    if (!can_bs(BS_EOL)                 /* only if "eol" included */
-        || do_join(2, FALSE, TRUE, FALSE) == FAIL)
-      vim_beep();
-    else
-      curwin->w_cursor.col = temp;
-  } else if (del_char(FALSE) == FAIL)   /* delete char under cursor */
-    vim_beep();
-  did_ai = FALSE;
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-  AppendCharToRedobuff(K_DEL);
-}
-
-static void ins_bs_one(colnr_T *vcolp);
-
-/*
- * Delete one character for ins_bs().
- */
-static void ins_bs_one(colnr_T *vcolp)
-{
-  dec_cursor();
-  getvcol(curwin, &curwin->w_cursor, vcolp, NULL, NULL);
-  if (State & REPLACE_FLAG) {
-    /* Don't delete characters before the insert point when in
-     * Replace mode */
-    if (curwin->w_cursor.lnum != Insstart.lnum
-        || curwin->w_cursor.col >= Insstart.col)
-      replace_do_bs(-1);
-  } else
-    (void)del_char(FALSE);
-}
-
-/*
- * Handle Backspace, delete-word and delete-line in Insert mode.
- * Return TRUE when backspace was actually used.
- */
-static int ins_bs(int c, int mode, int *inserted_space_p)
-{
-  linenr_T lnum;
-  int cc;
-  int temp = 0;                     /* init for GCC */
-  colnr_T save_col;
-  colnr_T mincol;
-  int did_backspace = FALSE;
-  int in_indent;
-  int oldState;
-  int cpc[MAX_MCO];                 /* composing characters */
-
-  /*
-   * can't delete anything in an empty file
-   * can't backup past first character in buffer
-   * can't backup past starting point unless 'backspace' > 1
-   * can backup to a previous line if 'backspace' == 0
-   */
-  if (       bufempty()
-             || (
-               !revins_on &&
-               ((curwin->w_cursor.lnum == 1 && curwin->w_cursor.col == 0)
-                || (!can_bs(BS_START)
-                    && (arrow_used
-                        || (curwin->w_cursor.lnum == Insstart_orig.lnum
-                            && curwin->w_cursor.col <= Insstart_orig.col)))
-                || (!can_bs(BS_INDENT) && !arrow_used && ai_col > 0
-                    && curwin->w_cursor.col <= ai_col)
-                || (!can_bs(BS_EOL) && curwin->w_cursor.col == 0)))) {
-    vim_beep();
-    return FALSE;
-  }
-
-  if (stop_arrow() == FAIL)
-    return FALSE;
-  in_indent = inindent(0);
-  if (in_indent)
-    can_cindent = FALSE;
-  end_comment_pending = NUL;    /* After BS, don't auto-end comment */
-  if (revins_on)            /* put cursor after last inserted char */
-    inc_cursor();
-
-  /* Virtualedit:
-   *	BACKSPACE_CHAR eats a virtual space
-   *	BACKSPACE_WORD eats all coladd
-   *	BACKSPACE_LINE eats all coladd and keeps going
-   */
-  if (curwin->w_cursor.coladd > 0) {
-    if (mode == BACKSPACE_CHAR) {
-      --curwin->w_cursor.coladd;
-      return TRUE;
-    }
-    if (mode == BACKSPACE_WORD) {
-      curwin->w_cursor.coladd = 0;
-      return TRUE;
-    }
-    curwin->w_cursor.coladd = 0;
-  }
-
-  /*
-   * delete newline!
-   */
-  if (curwin->w_cursor.col == 0) {
-    lnum = Insstart_orig.lnum;
-    if (curwin->w_cursor.lnum == lnum || revins_on) {
-      if (u_save((linenr_T)(curwin->w_cursor.lnum - 2),
-              (linenr_T)(curwin->w_cursor.lnum + 1)) == FAIL) {
-        return FALSE;
-      }
-      --Insstart_orig.lnum;
-      Insstart_orig.col = MAXCOL;
-    }
-    /*
-     * In replace mode:
-     * cc < 0: NL was inserted, delete it
-     * cc >= 0: NL was replaced, put original characters back
-     */
-    cc = -1;
-    if (State & REPLACE_FLAG)
-      cc = replace_pop();           /* returns -1 if NL was inserted */
-    /*
-     * In replace mode, in the line we started replacing, we only move the
-     * cursor.
-     */
-    if ((State & REPLACE_FLAG) && curwin->w_cursor.lnum <= lnum) {
-      dec_cursor();
-    } else {
-      if (!(State & VREPLACE_FLAG)
-          || curwin->w_cursor.lnum > orig_line_count) {
-        temp = gchar_cursor();          /* remember current char */
-        --curwin->w_cursor.lnum;
-
-        /* When "aw" is in 'formatoptions' we must delete the space at
-         * the end of the line, otherwise the line will be broken
-         * again when auto-formatting. */
-        if (has_format_option(FO_AUTO)
-            && has_format_option(FO_WHITE_PAR)) {
-          char_u  *ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum,
-              TRUE);
-          int len;
-
-          len = (int)STRLEN(ptr);
-          if (len > 0 && ptr[len - 1] == ' ')
-            ptr[len - 1] = NUL;
-        }
-
-        (void)do_join(2, FALSE, FALSE, FALSE);
-        if (temp == NUL && gchar_cursor() != NUL)
-          inc_cursor();
-      } else
-        dec_cursor();
-
-      /*
-       * In REPLACE mode we have to put back the text that was replaced
-       * by the NL. On the replace stack is first a NUL-terminated
-       * sequence of characters that were deleted and then the
-       * characters that NL replaced.
-       */
-      if (State & REPLACE_FLAG) {
-        /*
-         * Do the next ins_char() in NORMAL state, to
-         * prevent ins_char() from replacing characters and
-         * avoiding showmatch().
-         */
-        oldState = State;
-        State = NORMAL;
-        /*
-         * restore characters (blanks) deleted after cursor
-         */
-        while (cc > 0) {
-          save_col = curwin->w_cursor.col;
-          mb_replace_pop_ins(cc);
-          curwin->w_cursor.col = save_col;
-          cc = replace_pop();
-        }
-        /* restore the characters that NL replaced */
-        replace_pop_ins();
-        State = oldState;
-      }
-    }
-    did_ai = FALSE;
-  } else {
-    /*
-     * Delete character(s) before the cursor.
-     */
-    if (revins_on)              /* put cursor on last inserted char */
-      dec_cursor();
-    mincol = 0;
-    /* keep indent */
-    if (mode == BACKSPACE_LINE
-        && (curbuf->b_p_ai
-            || cindent_on()
-            )
-        && !revins_on
-        ) {
-      save_col = curwin->w_cursor.col;
-      beginline(BL_WHITE);
-      if (curwin->w_cursor.col < save_col)
-        mincol = curwin->w_cursor.col;
-      curwin->w_cursor.col = save_col;
-    }
-
-    /*
-     * Handle deleting one 'shiftwidth' or 'softtabstop'.
-     */
-    if (       mode == BACKSPACE_CHAR
-               && ((p_sta && in_indent)
-                   || (get_sts_value() != 0
-                       && curwin->w_cursor.col > 0
-                       && (*(ml_get_cursor() - 1) == TAB
-                           || (*(ml_get_cursor() - 1) == ' '
-                               && (!*inserted_space_p
-                                   || arrow_used)))))) {
-      int ts;
-      colnr_T vcol;
-      colnr_T want_vcol;
-      colnr_T start_vcol;
-
-      *inserted_space_p = FALSE;
-      if (p_sta && in_indent)
-        ts = (int)get_sw_value(curbuf);
-      else
-        ts = (int)get_sts_value();
-      /* Compute the virtual column where we want to be.  Since
-       * 'showbreak' may get in the way, need to get the last column of
-       * the previous character. */
-      getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
-      start_vcol = vcol;
-      dec_cursor();
-      getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol);
-      inc_cursor();
-      want_vcol = (want_vcol / ts) * ts;
-
-      /* delete characters until we are at or before want_vcol */
-      while (vcol > want_vcol
-             && (cc = *(ml_get_cursor() - 1), vim_iswhite(cc)))
-        ins_bs_one(&vcol);
-
-      /* insert extra spaces until we are at want_vcol */
-      while (vcol < want_vcol) {
-        /* Remember the first char we inserted */
-        if (curwin->w_cursor.lnum == Insstart_orig.lnum
-            && curwin->w_cursor.col < Insstart_orig.col) {
-          Insstart_orig.col = curwin->w_cursor.col;
-        }
-
-        if (State & VREPLACE_FLAG)
-          ins_char(' ');
-        else {
-          ins_str((char_u *)" ");
-          if ((State & REPLACE_FLAG))
-            replace_push(NUL);
-        }
-        getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
-      }
-
-      /* If we are now back where we started delete one character.  Can
-       * happen when using 'sts' and 'linebreak'. */
-      if (vcol >= start_vcol)
-        ins_bs_one(&vcol);
-    }
-    /*
-     * Delete upto starting point, start of line or previous word.
-     */
-    else do {
-        if (!revins_on)     /* put cursor on char to be deleted */
-          dec_cursor();
-
-        /* start of word? */
-        if (mode == BACKSPACE_WORD && !vim_isspace(gchar_cursor())) {
-          mode = BACKSPACE_WORD_NOT_SPACE;
-          temp = vim_iswordc(gchar_cursor());
-        }
-        /* end of word? */
-        else if (mode == BACKSPACE_WORD_NOT_SPACE
-                 && (vim_isspace(cc = gchar_cursor())
-                     || vim_iswordc(cc) != temp)) {
-          if (!revins_on)
-            inc_cursor();
-          else if (State & REPLACE_FLAG)
-            dec_cursor();
-          break;
-        }
-        if (State & REPLACE_FLAG)
-          replace_do_bs(-1);
-        else {
-          if (enc_utf8 && p_deco)
-            (void)utfc_ptr2char(ml_get_cursor(), cpc);
-          (void)del_char(FALSE);
-          /*
-           * If there are combining characters and 'delcombine' is set
-           * move the cursor back.  Don't back up before the base
-           * character.
-           */
-          if (enc_utf8 && p_deco && cpc[0] != NUL)
-            inc_cursor();
-          if (revins_chars) {
-            revins_chars--;
-            revins_legal++;
-          }
-          if (revins_on && gchar_cursor() == NUL)
-            break;
-        }
-        /* Just a single backspace?: */
-        if (mode == BACKSPACE_CHAR)
-          break;
-      } while (
-        revins_on ||
-        (curwin->w_cursor.col > mincol
-         && (curwin->w_cursor.lnum != Insstart_orig.lnum
-             || curwin->w_cursor.col != Insstart_orig.col)));
-    did_backspace = TRUE;
-  }
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-  if (curwin->w_cursor.col <= 1)
-    did_ai = FALSE;
-  /*
-   * It's a little strange to put backspaces into the redo
-   * buffer, but it makes auto-indent a lot easier to deal
-   * with.
-   */
-  AppendCharToRedobuff(c);
-
-  /* If deleted before the insertion point, adjust it */
-  if (curwin->w_cursor.lnum == Insstart_orig.lnum
-      && curwin->w_cursor.col < Insstart_orig.col) {
-    Insstart_orig.col = curwin->w_cursor.col;
-  }
-
-  /* vi behaviour: the cursor moves backward but the character that
-   *		     was there remains visible
-   * Vim behaviour: the cursor moves backward and the character that
-   *		      was there is erased from the screen.
-   * We can emulate the vi behaviour by pretending there is a dollar
-   * displayed even when there isn't.
-   *  --pkv Sun Jan 19 01:56:40 EST 2003 */
-  if (vim_strchr(p_cpo, CPO_BACKSPACE) != NULL && dollar_vcol == -1)
-    dollar_vcol = curwin->w_virtcol;
-
-  /* When deleting a char the cursor line must never be in a closed fold.
-   * E.g., when 'foldmethod' is indent and deleting the first non-white
-   * char before a Tab. */
-  if (did_backspace)
-    foldOpenCursor();
-
-  return did_backspace;
-}
-
-static void ins_mouse(int c)
-{
-  pos_T tpos;
-  win_T       *old_curwin = curwin;
-
-  if (!mouse_has(MOUSE_INSERT))
-    return;
-
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (do_mouse(NULL, c, BACKWARD, 1L, 0)) {
-    win_T   *new_curwin = curwin;
-
-    if (curwin != old_curwin && win_valid(old_curwin)) {
-      /* Mouse took us to another window.  We need to go back to the
-       * previous one to stop insert there properly. */
-      curwin = old_curwin;
-      curbuf = curwin->w_buffer;
-    }
-    start_arrow(curwin == old_curwin ? &tpos : NULL);
-    if (curwin != new_curwin && win_valid(new_curwin)) {
-      curwin = new_curwin;
-      curbuf = curwin->w_buffer;
-    }
-    can_cindent = TRUE;
-  }
-
-  /* redraw status lines (in case another window became active) */
-  redraw_statuslines();
-}
-
-static void ins_mousescroll(int dir)
-{
-  pos_T tpos;
-  win_T       *old_curwin = curwin;
-  int did_scroll = FALSE;
-
-  tpos = curwin->w_cursor;
-
-  if (mouse_row >= 0 && mouse_col >= 0) {
-    int row, col;
-
-    row = mouse_row;
-    col = mouse_col;
-
-    /* find the window at the pointer coordinates */
-    curwin = mouse_find_win(&row, &col);
-    curbuf = curwin->w_buffer;
-  }
-  if (curwin == old_curwin)
-    undisplay_dollar();
-
-  /* Don't scroll the window in which completion is being done. */
-  if (!pum_visible()
-      || curwin != old_curwin
-      ) {
-    if (dir == MSCR_DOWN || dir == MSCR_UP) {
-      if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
-        scroll_redraw(dir,
-            (long)(curwin->w_botline - curwin->w_topline));
-      else
-        scroll_redraw(dir, 3L);
-    }
-    did_scroll = TRUE;
-  }
-
-  curwin->w_redr_status = TRUE;
-
-  curwin = old_curwin;
-  curbuf = curwin->w_buffer;
-
-  /* The popup menu may overlay the window, need to redraw it.
-   * TODO: Would be more efficient to only redraw the windows that are
-   * overlapped by the popup menu. */
-  if (pum_visible() && did_scroll) {
-    redraw_all_later(NOT_VALID);
-    ins_compl_show_pum();
-  }
-
-  if (!equalpos(curwin->w_cursor, tpos)) {
-    start_arrow(&tpos);
-    can_cindent = TRUE;
-  }
-}
-
-
-
-static void ins_left(void)
-{
-  pos_T tpos;
-
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (oneleft() == OK) {
-    start_arrow(&tpos);
-    /* If exit reversed string, position is fixed */
-    if (revins_scol != -1 && (int)curwin->w_cursor.col >= revins_scol)
-      revins_legal++;
-    revins_chars++;
-  }
-  /*
-   * if 'whichwrap' set for cursor in insert mode may go to
-   * previous line
-   */
-  else if (vim_strchr(p_ww, '[') != NULL && curwin->w_cursor.lnum > 1) {
-    start_arrow(&tpos);
-    --(curwin->w_cursor.lnum);
-    coladvance((colnr_T)MAXCOL);
-    curwin->w_set_curswant = TRUE;      /* so we stay at the end */
-  } else
-    vim_beep();
-}
-
-static void ins_home(int c)
-{
-  pos_T tpos;
-
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (c == K_C_HOME)
-    curwin->w_cursor.lnum = 1;
-  curwin->w_cursor.col = 0;
-  curwin->w_cursor.coladd = 0;
-  curwin->w_curswant = 0;
-  start_arrow(&tpos);
-}
-
-static void ins_end(int c)
-{
-  pos_T tpos;
-
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (c == K_C_END)
-    curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
-  coladvance((colnr_T)MAXCOL);
-  curwin->w_curswant = MAXCOL;
-
-  start_arrow(&tpos);
-}
-
-static void ins_s_left(void)
-{
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  if (curwin->w_cursor.lnum > 1 || curwin->w_cursor.col > 0) {
-    start_arrow(&curwin->w_cursor);
-    (void)bck_word(1L, FALSE, FALSE);
-    curwin->w_set_curswant = TRUE;
-  } else
-    vim_beep();
-}
-
-static void ins_right(void)
-{
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  if (gchar_cursor() != NUL
-      || virtual_active()
-      ) {
-    start_arrow(&curwin->w_cursor);
-    curwin->w_set_curswant = TRUE;
-    if (virtual_active())
-      oneright();
-    else {
-      if (has_mbyte)
-        curwin->w_cursor.col += (*mb_ptr2len)(ml_get_cursor());
-      else
-        ++curwin->w_cursor.col;
-    }
-
-    revins_legal++;
-    if (revins_chars)
-      revins_chars--;
-  }
-  /* if 'whichwrap' set for cursor in insert mode, may move the
-   * cursor to the next line */
-  else if (vim_strchr(p_ww, ']') != NULL
-           && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) {
-    start_arrow(&curwin->w_cursor);
-    curwin->w_set_curswant = TRUE;
-    ++curwin->w_cursor.lnum;
-    curwin->w_cursor.col = 0;
-  } else
-    vim_beep();
-}
-
-static void ins_s_right(void)
-{
-  if ((fdo_flags & FDO_HOR) && KeyTyped)
-    foldOpenCursor();
-  undisplay_dollar();
-  if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
-      || gchar_cursor() != NUL) {
-    start_arrow(&curwin->w_cursor);
-    (void)fwd_word(1L, FALSE, 0);
-    curwin->w_set_curswant = TRUE;
-  } else
-    vim_beep();
-}
-
-static void 
-ins_up (
-    int startcol                   /* when TRUE move to Insstart.col */
-)
-{
-  pos_T tpos;
-  linenr_T old_topline = curwin->w_topline;
-  int old_topfill = curwin->w_topfill;
-
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (cursor_up(1L, TRUE) == OK) {
-    if (startcol)
-      coladvance(getvcol_nolist(&Insstart));
-    if (old_topline != curwin->w_topline
-        || old_topfill != curwin->w_topfill
-        )
-      redraw_later(VALID);
-    start_arrow(&tpos);
-    can_cindent = TRUE;
-  } else
-    vim_beep();
-}
-
-static void ins_pageup(void)
-{
-  pos_T tpos;
-
-  undisplay_dollar();
-
-  if (mod_mask & MOD_MASK_CTRL) {
-    /* <C-PageUp>: tab page back */
-    if (first_tabpage->tp_next != NULL) {
-      start_arrow(&curwin->w_cursor);
-      goto_tabpage(-1);
-    }
-    return;
-  }
-
-  tpos = curwin->w_cursor;
-  if (onepage(BACKWARD, 1L) == OK) {
-    start_arrow(&tpos);
-    can_cindent = TRUE;
-  } else
-    vim_beep();
-}
-
-static void 
-ins_down (
-    int startcol                   /* when TRUE move to Insstart.col */
-)
-{
-  pos_T tpos;
-  linenr_T old_topline = curwin->w_topline;
-  int old_topfill = curwin->w_topfill;
-
-  undisplay_dollar();
-  tpos = curwin->w_cursor;
-  if (cursor_down(1L, TRUE) == OK) {
-    if (startcol)
-      coladvance(getvcol_nolist(&Insstart));
-    if (old_topline != curwin->w_topline
-        || old_topfill != curwin->w_topfill
-        )
-      redraw_later(VALID);
-    start_arrow(&tpos);
-    can_cindent = TRUE;
-  } else
-    vim_beep();
-}
-
-static void ins_pagedown(void)
-{
-  pos_T tpos;
-
-  undisplay_dollar();
-
-  if (mod_mask & MOD_MASK_CTRL) {
-    /* <C-PageDown>: tab page forward */
-    if (first_tabpage->tp_next != NULL) {
-      start_arrow(&curwin->w_cursor);
-      goto_tabpage(0);
-    }
-    return;
-  }
-
-  tpos = curwin->w_cursor;
-  if (onepage(FORWARD, 1L) == OK) {
-    start_arrow(&tpos);
-    can_cindent = TRUE;
-  } else
-    vim_beep();
-}
-
-/*
- * Handle TAB in Insert or Replace mode.
- * Return TRUE when the TAB needs to be inserted like a normal character.
- */
-static int ins_tab(void)
-{
-  int ind;
-  int i;
-  int temp;
-
-  if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum)
-    Insstart_blank_vcol = get_nolist_virtcol();
-  if (echeck_abbr(TAB + ABBR_OFF))
-    return FALSE;
-
-  ind = inindent(0);
-  if (ind)
-    can_cindent = FALSE;
-
-  /*
-   * When nothing special, insert TAB like a normal character
-   */
-  if (!curbuf->b_p_et
-      && !(p_sta && ind && curbuf->b_p_ts != get_sw_value(curbuf))
-      && get_sts_value() == 0)
-    return TRUE;
-
-  if (stop_arrow() == FAIL)
-    return TRUE;
-
-  did_ai = FALSE;
-  did_si = FALSE;
-  can_si = FALSE;
-  can_si_back = FALSE;
-  AppendToRedobuff((char_u *)"\t");
-
-  if (p_sta && ind)             /* insert tab in indent, use 'shiftwidth' */
-    temp = (int)get_sw_value(curbuf);
-  else if (curbuf->b_p_sts != 0)   /* use 'softtabstop' when set */
-    temp = (int)get_sts_value();
-  else                          /* otherwise use 'tabstop' */
-    temp = (int)curbuf->b_p_ts;
-  temp -= get_nolist_virtcol() % temp;
-
-  /*
-   * Insert the first space with ins_char().	It will delete one char in
-   * replace mode.  Insert the rest with ins_str(); it will not delete any
-   * chars.  For VREPLACE mode, we use ins_char() for all characters.
-   */
-  ins_char(' ');
-  while (--temp > 0) {
-    if (State & VREPLACE_FLAG)
-      ins_char(' ');
-    else {
-      ins_str((char_u *)" ");
-      if (State & REPLACE_FLAG)             /* no char replaced */
-        replace_push(NUL);
-    }
-  }
-
-  /*
-   * When 'expandtab' not set: Replace spaces by TABs where possible.
-   */
-  if (!curbuf->b_p_et && (get_sts_value() || (p_sta && ind))) {
-    char_u          *ptr;
-    char_u          *saved_line = NULL;         /* init for GCC */
-    pos_T pos;
-    pos_T fpos;
-    pos_T           *cursor;
-    colnr_T want_vcol, vcol;
-    int change_col = -1;
-    int save_list = curwin->w_p_list;
-
-    /*
-     * Get the current line.  For VREPLACE mode, don't make real changes
-     * yet, just work on a copy of the line.
-     */
-    if (State & VREPLACE_FLAG) {
-      pos = curwin->w_cursor;
-      cursor = &pos;
-      saved_line = vim_strsave(ml_get_curline());
-      if (saved_line == NULL)
-        return FALSE;
-      ptr = saved_line + pos.col;
-    } else {
-      ptr = ml_get_cursor();
-      cursor = &curwin->w_cursor;
-    }
-
-    /* When 'L' is not in 'cpoptions' a tab always takes up 'ts' spaces. */
-    if (vim_strchr(p_cpo, CPO_LISTWM) == NULL)
-      curwin->w_p_list = FALSE;
-
-    /* Find first white before the cursor */
-    fpos = curwin->w_cursor;
-    while (fpos.col > 0 && vim_iswhite(ptr[-1])) {
-      --fpos.col;
-      --ptr;
-    }
-
-    /* In Replace mode, don't change characters before the insert point. */
-    if ((State & REPLACE_FLAG)
-        && fpos.lnum == Insstart.lnum
-        && fpos.col < Insstart.col) {
-      ptr += Insstart.col - fpos.col;
-      fpos.col = Insstart.col;
-    }
-
-    /* compute virtual column numbers of first white and cursor */
-    getvcol(curwin, &fpos, &vcol, NULL, NULL);
-    getvcol(curwin, cursor, &want_vcol, NULL, NULL);
-
-    /* Use as many TABs as possible.  Beware of 'showbreak' and
-     * 'linebreak' adding extra virtual columns. */
-    while (vim_iswhite(*ptr)) {
-      i = lbr_chartabsize((char_u *)"\t", vcol);
-      if (vcol + i > want_vcol)
-        break;
-      if (*ptr != TAB) {
-        *ptr = TAB;
-        if (change_col < 0) {
-          change_col = fpos.col;            /* Column of first change */
-          /* May have to adjust Insstart */
-          if (fpos.lnum == Insstart.lnum && fpos.col < Insstart.col)
-            Insstart.col = fpos.col;
-        }
-      }
-      ++fpos.col;
-      ++ptr;
-      vcol += i;
-    }
-
-    if (change_col >= 0) {
-      int repl_off = 0;
-
-      /* Skip over the spaces we need. */
-      while (vcol < want_vcol && *ptr == ' ') {
-        vcol += lbr_chartabsize(ptr, vcol);
-        ++ptr;
-        ++repl_off;
-      }
-      if (vcol > want_vcol) {
-        /* Must have a char with 'showbreak' just before it. */
-        --ptr;
-        --repl_off;
-      }
-      fpos.col += repl_off;
-
-      /* Delete following spaces. */
-      i = cursor->col - fpos.col;
-      if (i > 0) {
-        STRMOVE(ptr, ptr + i);
-        /* correct replace stack. */
-        if ((State & REPLACE_FLAG)
-            && !(State & VREPLACE_FLAG)
-            )
-          for (temp = i; --temp >= 0; )
-            replace_join(repl_off);
-      }
-      cursor->col -= i;
-
-      /*
-       * In VREPLACE mode, we haven't changed anything yet.  Do it now by
-       * backspacing over the changed spacing and then inserting the new
-       * spacing.
-       */
-      if (State & VREPLACE_FLAG) {
-        /* Backspace from real cursor to change_col */
-        backspace_until_column(change_col);
-
-        /* Insert each char in saved_line from changed_col to
-         * ptr-cursor */
-        ins_bytes_len(saved_line + change_col,
-            cursor->col - change_col);
-      }
-    }
-
-    if (State & VREPLACE_FLAG)
-      free(saved_line);
-    curwin->w_p_list = save_list;
-  }
-
-  return FALSE;
-}
-
-/*
- * Handle CR or NL in insert mode.
- * Return TRUE when out of memory or can't undo.
- */
-static int ins_eol(int c)
-{
-  int i;
-
-  if (echeck_abbr(c + ABBR_OFF))
-    return FALSE;
-  if (stop_arrow() == FAIL)
-    return TRUE;
-  undisplay_dollar();
-
-  /*
-   * Strange Vi behaviour: In Replace mode, typing a NL will not delete the
-   * character under the cursor.  Only push a NUL on the replace stack,
-   * nothing to put back when the NL is deleted.
-   */
-  if ((State & REPLACE_FLAG)
-      && !(State & VREPLACE_FLAG)
-      )
-    replace_push(NUL);
-
-  /*
-   * In VREPLACE mode, a NL replaces the rest of the line, and starts
-   * replacing the next line, so we push all of the characters left on the
-   * line onto the replace stack.  This is not done here though, it is done
-   * in open_line().
-   */
-
-  /* Put cursor on NUL if on the last char and coladd is 1 (happens after
-   * CTRL-O). */
-  if (virtual_active() && curwin->w_cursor.coladd > 0)
-    coladvance(getviscol());
-
-  if (p_altkeymap && p_fkmap)
-    fkmap(NL);
-  /* NL in reverse insert will always start in the end of
-   * current line. */
-  if (revins_on)
-    curwin->w_cursor.col += (colnr_T)STRLEN(ml_get_cursor());
-
-  AppendToRedobuff(NL_STR);
-  i = open_line(FORWARD,
-      has_format_option(FO_RET_COMS) ? OPENLINE_DO_COM :
-      0, old_indent);
-  old_indent = 0;
-  can_cindent = TRUE;
-  /* When inserting a line the cursor line must never be in a closed fold. */
-  foldOpenCursor();
-
-  return !i;
-}
-
-/*
- * Handle digraph in insert mode.
- * Returns character still to be inserted, or NUL when nothing remaining to be
- * done.
- */
-static int ins_digraph(void)
-{
-  int c;
-  int cc;
-  int did_putchar = FALSE;
-
-  pc_status = PC_STATUS_UNSET;
-  if (redrawing() && !char_avail()) {
-    /* may need to redraw when no more chars available now */
-    ins_redraw(FALSE);
-
-    edit_putchar('?', TRUE);
-    did_putchar = TRUE;
-    add_to_showcmd_c(Ctrl_K);
-  }
-
-#ifdef USE_ON_FLY_SCROLL
-  dont_scroll = TRUE;           /* disallow scrolling here */
-#endif
-
-  /* don't map the digraph chars. This also prevents the
-   * mode message to be deleted when ESC is hit */
-  ++no_mapping;
-  ++allow_keys;
-  c = plain_vgetc();
-  --no_mapping;
-  --allow_keys;
-  if (did_putchar)
-    /* when the line fits in 'columns' the '?' is at the start of the next
-     * line and will not be removed by the redraw */
-    edit_unputchar();
-
-  if (IS_SPECIAL(c) || mod_mask) {          /* special key */
-    clear_showcmd();
-    insert_special(c, TRUE, FALSE);
-    return NUL;
-  }
-  if (c != ESC) {
-    did_putchar = FALSE;
-    if (redrawing() && !char_avail()) {
-      /* may need to redraw when no more chars available now */
-      ins_redraw(FALSE);
-
-      if (char2cells(c) == 1) {
-        ins_redraw(FALSE);
-        edit_putchar(c, TRUE);
-        did_putchar = TRUE;
-      }
-      add_to_showcmd_c(c);
-    }
-    ++no_mapping;
-    ++allow_keys;
-    cc = plain_vgetc();
-    --no_mapping;
-    --allow_keys;
-    if (did_putchar)
-      /* when the line fits in 'columns' the '?' is at the start of the
-       * next line and will not be removed by a redraw */
-      edit_unputchar();
-    if (cc != ESC) {
-      AppendToRedobuff((char_u *)CTRL_V_STR);
-      c = getdigraph(c, cc, TRUE);
-      clear_showcmd();
-      return c;
-    }
-  }
-  clear_showcmd();
-  return NUL;
-}
-
-/*
- * Handle CTRL-E and CTRL-Y in Insert mode: copy char from other line.
- * Returns the char to be inserted, or NUL if none found.
- */
-int ins_copychar(linenr_T lnum)
-{
-  int c;
-  int temp;
-  char_u  *ptr, *prev_ptr;
-
-  if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) {
-    vim_beep();
-    return NUL;
-  }
-
-  /* try to advance to the cursor column */
-  temp = 0;
-  ptr = ml_get(lnum);
-  prev_ptr = ptr;
-  validate_virtcol();
-  while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL) {
-    prev_ptr = ptr;
-    temp += lbr_chartabsize_adv(&ptr, (colnr_T)temp);
-  }
-  if ((colnr_T)temp > curwin->w_virtcol)
-    ptr = prev_ptr;
-
-  c = (*mb_ptr2char)(ptr);
-  if (c == NUL)
-    vim_beep();
-  return c;
-}
-
-/*
- * CTRL-Y or CTRL-E typed in Insert mode.
- */
-static int ins_ctrl_ey(int tc)
-{
-  int c = tc;
-
-  if (ctrl_x_mode == CTRL_X_SCROLL) {
-    if (c == Ctrl_Y)
-      scrolldown_clamp();
-    else
-      scrollup_clamp();
-    redraw_later(VALID);
-  } else {
-    c = ins_copychar(curwin->w_cursor.lnum + (c == Ctrl_Y ? -1 : 1));
-    if (c != NUL) {
-      long tw_save;
-
-      /* The character must be taken literally, insert like it
-       * was typed after a CTRL-V, and pretend 'textwidth'
-       * wasn't set.  Digits, 'o' and 'x' are special after a
-       * CTRL-V, don't use it for these. */
-      if (c < 256 && !isalnum(c))
-        AppendToRedobuff((char_u *)CTRL_V_STR);         /* CTRL-V */
-      tw_save = curbuf->b_p_tw;
-      curbuf->b_p_tw = -1;
-      insert_special(c, TRUE, FALSE);
-      curbuf->b_p_tw = tw_save;
-      revins_chars++;
-      revins_legal++;
-      c = Ctrl_V;       /* pretend CTRL-V is last character */
-      auto_format(FALSE, TRUE);
-    }
-  }
-  return c;
-}
-
-/*
- * Try to do some very smart auto-indenting.
- * Used when inserting a "normal" character.
- */
-static void ins_try_si(int c)
-{
-  pos_T       *pos, old_pos;
-  char_u      *ptr;
-  int i;
-  int temp;
-
-  /*
-   * do some very smart indenting when entering '{' or '}'
-   */
-  if (((did_si || can_si_back) && c == '{') || (can_si && c == '}')) {
-    /*
-     * for '}' set indent equal to indent of line containing matching '{'
-     */
-    if (c == '}' && (pos = findmatch(NULL, '{')) != NULL) {
-      old_pos = curwin->w_cursor;
-      /*
-       * If the matching '{' has a ')' immediately before it (ignoring
-       * white-space), then line up with the start of the line
-       * containing the matching '(' if there is one.  This handles the
-       * case where an "if (..\n..) {" statement continues over multiple
-       * lines -- webb
-       */
-      ptr = ml_get(pos->lnum);
-      i = pos->col;
-      if (i > 0)                /* skip blanks before '{' */
-        while (--i > 0 && vim_iswhite(ptr[i]))
-          ;
-      curwin->w_cursor.lnum = pos->lnum;
-      curwin->w_cursor.col = i;
-      if (ptr[i] == ')' && (pos = findmatch(NULL, '(')) != NULL)
-        curwin->w_cursor = *pos;
-      i = get_indent();
-      curwin->w_cursor = old_pos;
-      if (State & VREPLACE_FLAG)
-        change_indent(INDENT_SET, i, FALSE, NUL, TRUE);
-      else
-        (void)set_indent(i, SIN_CHANGED);
-    } else if (curwin->w_cursor.col > 0) {
-      /*
-       * when inserting '{' after "O" reduce indent, but not
-       * more than indent of previous line
-       */
-      temp = TRUE;
-      if (c == '{' && can_si_back && curwin->w_cursor.lnum > 1) {
-        old_pos = curwin->w_cursor;
-        i = get_indent();
-        while (curwin->w_cursor.lnum > 1) {
-          ptr = skipwhite(ml_get(--(curwin->w_cursor.lnum)));
-
-          /* ignore empty lines and lines starting with '#'. */
-          if (*ptr != '#' && *ptr != NUL)
-            break;
-        }
-        if (get_indent() >= i)
-          temp = FALSE;
-        curwin->w_cursor = old_pos;
-      }
-      if (temp)
-        shift_line(TRUE, FALSE, 1, TRUE);
-    }
-  }
-
-  /*
-   * set indent of '#' always to 0
-   */
-  if (curwin->w_cursor.col > 0 && can_si && c == '#') {
-    /* remember current indent for next line */
-    old_indent = get_indent();
-    (void)set_indent(0, SIN_CHANGED);
-  }
-
-  /* Adjust ai_col, the char at this position can be deleted. */
-  if (ai_col > curwin->w_cursor.col)
-    ai_col = curwin->w_cursor.col;
-}
-
-/*
- * Get the value that w_virtcol would have when 'list' is off.
- * Unless 'cpo' contains the 'L' flag.
- */
-static colnr_T get_nolist_virtcol(void)
-{
-  if (curwin->w_p_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL)
-    return getvcol_nolist(&curwin->w_cursor);
-  validate_virtcol();
-  return curwin->w_virtcol;
-}
-
-/*
- * Handle the InsertCharPre autocommand.
- * "c" is the character that was typed.
- * Return a pointer to allocated memory with the replacement string.
- * Return NULL to continue inserting "c".
- */
-static char_u *do_insert_char_pre(int c)
-{
-  char_u      *res;
-  char_u buf[MB_MAXBYTES + 1];
-
-  /* Return quickly when there is nothing to do. */
-  if (!has_insertcharpre())
-    return NULL;
-
-  if (has_mbyte)
-    buf[(*mb_char2bytes)(c, buf)] = NUL;
-  else {
-    buf[0] = c;
-    buf[1] = NUL;
-  }
-
-  /* Lock the text to avoid weird things from happening. */
-  ++textlock;
-  set_vim_var_string(VV_CHAR, buf, -1);    /* set v:char */
-
-  res = NULL;
-  if (apply_autocmds(EVENT_INSERTCHARPRE, NULL, NULL, FALSE, curbuf)) {
-    /* Get the value of v:char.  It may be empty or more than one
-     * character.  Only use it when changed, otherwise continue with the
-     * original character to avoid breaking autoindent. */
-    if (STRCMP(buf, get_vim_var_str(VV_CHAR)) != 0)
-      res = vim_strsave(get_vim_var_str(VV_CHAR));
-  }
-
-  set_vim_var_string(VV_CHAR, NULL, -1);    /* clear v:char */
-  --textlock;
-
-  return res;
-}