--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -661,221 +661,6 @@ sortend:
 }
 
 /*
- * ":retab".
- */
-    void
-ex_retab(exarg_T *eap)
-{
-    linenr_T	lnum;
-    int		got_tab = FALSE;
-    long	num_spaces = 0;
-    long	num_tabs;
-    long	len;
-    long	col;
-    long	vcol;
-    long	start_col = 0;		/* For start of white-space string */
-    long	start_vcol = 0;		/* For start of white-space string */
-    long	old_len;
-    char_u	*ptr;
-    char_u	*new_line = (char_u *)1;    /* init to non-NULL */
-    int		did_undo;		/* called u_save for current line */
-#ifdef FEAT_VARTABS
-    int		*new_vts_array = NULL;
-    char_u	*new_ts_str;		/* string value of tab argument */
-#else
-    int		temp;
-    int		new_ts;
-#endif
-    int		save_list;
-    linenr_T	first_line = 0;		/* first changed line */
-    linenr_T	last_line = 0;		/* last changed line */
-
-    save_list = curwin->w_p_list;
-    curwin->w_p_list = 0;	    /* don't want list mode here */
-
-#ifdef FEAT_VARTABS
-    new_ts_str = eap->arg;
-    if (!tabstop_set(eap->arg, &new_vts_array))
-	return;
-    while (vim_isdigit(*(eap->arg)) || *(eap->arg) == ',')
-	++(eap->arg);
-
-    // This ensures that either new_vts_array and new_ts_str are freshly
-    // allocated, or new_vts_array points to an existing array and new_ts_str
-    // is null.
-    if (new_vts_array == NULL)
-    {
-	new_vts_array = curbuf->b_p_vts_array;
-	new_ts_str = NULL;
-    }
-    else
-	new_ts_str = vim_strnsave(new_ts_str, eap->arg - new_ts_str);
-#else
-    new_ts = getdigits(&(eap->arg));
-    if (new_ts < 0)
-    {
-	emsg(_(e_positive));
-	return;
-    }
-    if (new_ts == 0)
-	new_ts = curbuf->b_p_ts;
-#endif
-    for (lnum = eap->line1; !got_int && lnum <= eap->line2; ++lnum)
-    {
-	ptr = ml_get(lnum);
-	col = 0;
-	vcol = 0;
-	did_undo = FALSE;
-	for (;;)
-	{
-	    if (VIM_ISWHITE(ptr[col]))
-	    {
-		if (!got_tab && num_spaces == 0)
-		{
-		    /* First consecutive white-space */
-		    start_vcol = vcol;
-		    start_col = col;
-		}
-		if (ptr[col] == ' ')
-		    num_spaces++;
-		else
-		    got_tab = TRUE;
-	    }
-	    else
-	    {
-		if (got_tab || (eap->forceit && num_spaces > 1))
-		{
-		    /* Retabulate this string of white-space */
-
-		    /* len is virtual length of white string */
-		    len = num_spaces = vcol - start_vcol;
-		    num_tabs = 0;
-		    if (!curbuf->b_p_et)
-		    {
-#ifdef FEAT_VARTABS
-			int t, s;
-
-			tabstop_fromto(start_vcol, vcol,
-					curbuf->b_p_ts, new_vts_array, &t, &s);
-			num_tabs = t;
-			num_spaces = s;
-#else
-			temp = new_ts - (start_vcol % new_ts);
-			if (num_spaces >= temp)
-			{
-			    num_spaces -= temp;
-			    num_tabs++;
-			}
-			num_tabs += num_spaces / new_ts;
-			num_spaces -= (num_spaces / new_ts) * new_ts;
-#endif
-		    }
-		    if (curbuf->b_p_et || got_tab ||
-					(num_spaces + num_tabs < len))
-		    {
-			if (did_undo == FALSE)
-			{
-			    did_undo = TRUE;
-			    if (u_save((linenr_T)(lnum - 1),
-						(linenr_T)(lnum + 1)) == FAIL)
-			    {
-				new_line = NULL;	/* flag out-of-memory */
-				break;
-			    }
-			}
-
-			/* len is actual number of white characters used */
-			len = num_spaces + num_tabs;
-			old_len = (long)STRLEN(ptr);
-			new_line = alloc(old_len - col + start_col + len + 1);
-			if (new_line == NULL)
-			    break;
-			if (start_col > 0)
-			    mch_memmove(new_line, ptr, (size_t)start_col);
-			mch_memmove(new_line + start_col + len,
-				      ptr + col, (size_t)(old_len - col + 1));
-			ptr = new_line + start_col;
-			for (col = 0; col < len; col++)
-			    ptr[col] = (col < num_tabs) ? '\t' : ' ';
-			ml_replace(lnum, new_line, FALSE);
-			if (first_line == 0)
-			    first_line = lnum;
-			last_line = lnum;
-			ptr = new_line;
-			col = start_col + len;
-		    }
-		}
-		got_tab = FALSE;
-		num_spaces = 0;
-	    }
-	    if (ptr[col] == NUL)
-		break;
-	    vcol += chartabsize(ptr + col, (colnr_T)vcol);
-	    if (has_mbyte)
-		col += (*mb_ptr2len)(ptr + col);
-	    else
-		++col;
-	}
-	if (new_line == NULL)		    /* out of memory */
-	    break;
-	line_breakcheck();
-    }
-    if (got_int)
-	emsg(_(e_interr));
-
-#ifdef FEAT_VARTABS
-    // If a single value was given then it can be considered equal to
-    // either the value of 'tabstop' or the value of 'vartabstop'.
-    if (tabstop_count(curbuf->b_p_vts_array) == 0
-	&& tabstop_count(new_vts_array) == 1
-	&& curbuf->b_p_ts == tabstop_first(new_vts_array))
-	; /* not changed */
-    else if (tabstop_count(curbuf->b_p_vts_array) > 0
-        && tabstop_eq(curbuf->b_p_vts_array, new_vts_array))
-	; /* not changed */
-    else
-	redraw_curbuf_later(NOT_VALID);
-#else
-    if (curbuf->b_p_ts != new_ts)
-	redraw_curbuf_later(NOT_VALID);
-#endif
-    if (first_line != 0)
-	changed_lines(first_line, 0, last_line + 1, 0L);
-
-    curwin->w_p_list = save_list;	/* restore 'list' */
-
-#ifdef FEAT_VARTABS
-    if (new_ts_str != NULL)		/* set the new tabstop */
-    {
-	// If 'vartabstop' is in use or if the value given to retab has more
-	// than one tabstop then update 'vartabstop'.
-	int *old_vts_ary = curbuf->b_p_vts_array;
-
-	if (tabstop_count(old_vts_ary) > 0 || tabstop_count(new_vts_array) > 1)
-	{
-	    set_string_option_direct((char_u *)"vts", -1, new_ts_str,
-							OPT_FREE|OPT_LOCAL, 0);
-	    curbuf->b_p_vts_array = new_vts_array;
-	    vim_free(old_vts_ary);
-	}
-	else
-	{
-	    // 'vartabstop' wasn't in use and a single value was given to
-	    // retab then update 'tabstop'.
-	    curbuf->b_p_ts = tabstop_first(new_vts_array);
-	    vim_free(new_vts_array);
-	}
-	vim_free(new_ts_str);
-    }
-#else
-    curbuf->b_p_ts = new_ts;
-#endif
-    coladvance(curwin->w_curswant);
-
-    u_clearline();
-}
-
-/*
  * :move command - move lines line1-line2 to line dest
  *
  * return FAIL for failure, OK otherwise