text: /* vi:set ts=8 sts=4 sw=4 noet:
   *
   * VIM - Vi IMproved	by Bram Moolenaar
   *
   * Do ":help uganda"  in Vim to read copying and usage conditions.
   * Do ":help credits" in Vim to see a list of people who contributed.
   * See README.txt for an overview of the Vim source code.
   */
  
  /*
   * drawline.c: Functions for drawing window lines on the screen.
   * This is the middle level, drawscreen. is the higher level and screen.c the
   * lower level.
   */
  
  #include "vim.h"
  
  #ifdef FEAT_SYN_HL
  /*
   * Advance **color_cols and return TRUE when there are columns to draw.
   */
      static int
  advance_color_col(int vcol, int **color_cols)
  {
      while (**color_cols >= 0 && vcol > **color_cols)
  	++*color_cols;
      return (**color_cols >= 0);
  }
  #endif
  
  #ifdef FEAT_SYN_HL
  /*
   * Used when 'cursorlineopt' contains "screenline": compute the margins between
   * which the highlighting is used.
   */
      static void
  margin_columns_win(win_T *wp, int *left_col, int *right_col)
  {
      // cache previous calculations depending on w_virtcol
      static int saved_w_virtcol;
      static win_T *prev_wp;
      static int prev_left_col;
      static int prev_right_col;
      static int prev_col_off;
  
      int cur_col_off = win_col_off(wp);
      int	width1;
      int	width2;
  
      if (saved_w_virtcol == wp->w_virtcol
  	    && prev_wp == wp && prev_col_off == cur_col_off)
      {
  	*right_col = prev_right_col;
  	*left_col = prev_left_col;
  	return;
      }
  
      width1 = wp->w_width - cur_col_off;
      width2 = width1 + win_col_off2(wp);
  
      *left_col = 0;
      *right_col = width1;
  
      if (wp->w_virtcol >= (colnr_T)width1)
  	*right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2;
      if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0)
  	*left_col = (wp->w_virtcol - width1) / width2 * width2 + width1;
  
      // cache values
      prev_left_col = *left_col;
      prev_right_col = *right_col;
      prev_wp = wp;
      saved_w_virtcol = wp->w_virtcol;
      prev_col_off = cur_col_off;
  }
  #endif
  
  #ifdef FEAT_SIGNS
  /*
   * Return TRUE if CursorLineSign highlight is to be used.
   */
      static int
  use_cursor_line_sign(win_T *wp, linenr_T lnum)
  {
      return wp->w_p_cul
  	    && lnum == wp->w_cursor.lnum
  	    && (wp->w_p_culopt_flags & CULOPT_NBR);
  }
  
  /*
   * Get information needed to display the sign in line 'lnum' in window 'wp'.
   * If 'nrcol' is TRUE, the sign is going to be displayed in the number column.
   * Otherwise the sign is going to be displayed in the sign column.
   */
      static void
  get_sign_display_info(
  	int		nrcol,
  	win_T		*wp,
  	linenr_T	lnum,
  	sign_attrs_T	*sattr,
  	int		wcr_attr,
  	int		row,
  	int		startrow,
  	int		filler_lines UNUSED,
  	int		filler_todo UNUSED,
  	int		*c_extrap,
  	int		*c_finalp,
  	char_u		*extra,
  	char_u		**pp_extra,
  	int		*n_extrap,
  	int		*char_attrp)
  {
      int	text_sign;
  # ifdef FEAT_SIGN_ICONS
      int	icon_sign;
  # endif
  
      // Draw two cells with the sign value or blank.
      *c_extrap = ' ';
      *c_finalp = NUL;
      if (nrcol)
  	*n_extrap = number_width(wp) + 1;
      else
      {
  	if (use_cursor_line_sign(wp, lnum))
  	    *char_attrp = hl_combine_attr(wcr_attr, HL_ATTR(HLF_CLS));
  	else
  	    *char_attrp = hl_combine_attr(wcr_attr, HL_ATTR(HLF_SC));
  	*n_extrap = 2;
      }
  
      if (row == startrow
  #ifdef FEAT_DIFF
  	    + filler_lines && filler_todo <= 0
  #endif
         )
      {
  	text_sign = (sattr->sat_text != NULL) ? sattr->sat_typenr : 0;
  # ifdef FEAT_SIGN_ICONS
  	icon_sign = (sattr->sat_icon != NULL) ? sattr->sat_typenr : 0;
  	if (gui.in_use && icon_sign != 0)
  	{
  	    // Use the image in this position.
  	    if (nrcol)
  	    {
  		*c_extrap = NUL;
  		sprintf((char *)extra, "%-*c ", number_width(wp), SIGN_BYTE);
  		*pp_extra = extra;
  		*n_extrap = (int)STRLEN(*pp_extra);
  	    }
  	    else
  		*c_extrap = SIGN_BYTE;
  #  ifdef FEAT_NETBEANS_INTG
  	    if (netbeans_active() && (buf_signcount(wp->w_buffer, lnum) > 1))
  	    {
  		if (nrcol)
  		{
  		    *c_extrap = NUL;
  		    sprintf((char *)extra, "%-*c ", number_width(wp),
  							MULTISIGN_BYTE);
  		    *pp_extra = extra;
  		    *n_extrap = (int)STRLEN(*pp_extra);
  		}
  		else
  		    *c_extrap = MULTISIGN_BYTE;
  	    }
  #  endif
  	    *c_finalp = NUL;
  	    *char_attrp = icon_sign;
  	}
  	else
  # endif
  	    if (text_sign != 0)
  	    {
  		*pp_extra = sattr->sat_text;
  		if (*pp_extra != NULL)
  		{
  		    if (nrcol)
  		    {
  			int n, width = number_width(wp) - 2;
  
  			for (n = 0; n < width; n++)
  			    extra[n] = ' ';
  			extra[n] = 0;
  			STRCAT(extra, *pp_extra);
  			STRCAT(extra, " ");
  			*pp_extra = extra;
  		    }
  		    *c_extrap = NUL;
  		    *c_finalp = NUL;
  		    *n_extrap = (int)STRLEN(*pp_extra);
  		}
  
  		if (use_cursor_line_sign(wp, lnum) && sattr->sat_culhl > 0)
  		    *char_attrp = sattr->sat_culhl;
  		else
  		    *char_attrp = sattr->sat_texthl;
  	    }
      }
  }
  #endif
  
  #ifdef FEAT_PROP_POPUP
  static textprop_T	*current_text_props = NULL;
  static buf_T		*current_buf = NULL;
  
      static int
  text_prop_compare(const void *s1, const void *s2)
  {
      int  idx1, idx2;
      proptype_T  *pt1, *pt2;
      colnr_T col1, col2;
  
      idx1 = *(int *)s1;
      idx2 = *(int *)s2;
      pt1 = text_prop_type_by_id(current_buf, current_text_props[idx1].tp_type);
      pt2 = text_prop_type_by_id(current_buf, current_text_props[idx2].tp_type);
      if (pt1 == pt2)
  	return 0;
      if (pt1 == NULL)
  	return -1;
      if (pt2 == NULL)
  	return 1;
      if (pt1->pt_priority != pt2->pt_priority)
  	return pt1->pt_priority > pt2->pt_priority ? 1 : -1;
      col1 = current_text_props[idx1].tp_col;
      col2 = current_text_props[idx2].tp_col;
      return col1 == col2 ? 0 : col1 > col2 ? 1 : -1;
  }
  #endif
  
  /*
   * Display line "lnum" of window 'wp' on the screen.
   * Start at row "startrow", stop when "endrow" is reached.
   * wp->w_virtcol needs to be valid.
   *
   * Return the number of last row the line occupies.
   */
      int
  win_line(
      win_T	*wp,
      linenr_T	lnum,
      int		startrow,
      int		endrow,
      int		nochange UNUSED,	// not updating for changed text
      int		number_only)		// only update the number column
  {
      int		col = 0;		// visual column on screen
      unsigned	off;			// offset in ScreenLines/ScreenAttrs
      int		c = 0;			// init for GCC
      long	vcol = 0;		// virtual column (for tabs)
  #ifdef FEAT_LINEBREAK
      long	vcol_sbr = -1;		// virtual column after showbreak
  #endif
      long	vcol_prev = -1;		// "vcol" of previous character
      char_u	*line;			// current line
      char_u	*ptr;			// current position in "line"
      int		row;			// row in the window, excl w_winrow
      int		screen_row;		// row on the screen, incl w_winrow
  
      char_u	extra[21];		// "%ld " and 'fdc' must fit in here
      int		n_extra = 0;		// number of extra chars
      char_u	*p_extra = NULL;	// string of extra chars, plus NUL
      char_u	*p_extra_free = NULL;   // p_extra needs to be freed
      int		c_extra = NUL;		// extra chars, all the same
      int		c_final = NUL;		// final char, mandatory if set
      int		extra_attr = 0;		// attributes when n_extra != 0
  #if defined(FEAT_LINEBREAK) && defined(FEAT_PROP_POPUP)
      int		in_linebreak = FALSE;	// n_extra set for showing linebreak
  #endif
      static char_u *at_end_str = (char_u *)""; // used for p_extra when
  					// displaying eol at end-of-line
      int		lcs_eol_one = wp->w_lcs_chars.eol; // eol until it's been used
      int		lcs_prec_todo = wp->w_lcs_chars.prec;
  					// prec until it's been used
  
      // saved "extra" items for when draw_state becomes WL_LINE (again)
      int		saved_n_extra = 0;
      char_u	*saved_p_extra = NULL;
      int		saved_c_extra = 0;
      int		saved_c_final = 0;
      int		saved_char_attr = 0;
  
      int		n_attr = 0;		// chars with special attr
      int		saved_attr2 = 0;	// char_attr saved for n_attr
      int		n_attr3 = 0;		// chars with overruling special attr
      int		saved_attr3 = 0;	// char_attr saved for n_attr3
  
      int		n_skip = 0;		// nr of chars to skip for 'nowrap'
  
      int		fromcol = -10;		// start of inverting
      int		tocol = MAXCOL;		// end of inverting
      int		fromcol_prev = -2;	// start of inverting after cursor
      int		noinvcur = FALSE;	// don't invert the cursor
      int		lnum_in_visual_area = FALSE;
      pos_T	pos;
      long	v;
  
      int		char_attr = 0;		// attributes for next character
      int		attr_pri = FALSE;	// char_attr has priority
      int		area_highlighting = FALSE; // Visual or incsearch highlighting
  					   // in this line
      int		vi_attr = 0;		// attributes for Visual and incsearch
  					// highlighting
      int		wcr_attr = 0;		// attributes from 'wincolor'
      int		win_attr = 0;		// background for whole window, except
  					// margins and "~" lines.
      int		area_attr = 0;		// attributes desired by highlighting
      int		search_attr = 0;	// attributes desired by 'hlsearch'
  #ifdef FEAT_SYN_HL
      int		vcol_save_attr = 0;	// saved attr for 'cursorcolumn'
      int		syntax_attr = 0;	// attributes desired by syntax
      int		prev_syntax_col = -1;	// column of prev_syntax_attr
      int		prev_syntax_attr = 0;	// syntax_attr at prev_syntax_col
      int		has_syntax = FALSE;	// this buffer has syntax highl.
      int		save_did_emsg;
      int		draw_color_col = FALSE;	// highlight colorcolumn
      int		*color_cols = NULL;	// pointer to according columns array
  #endif
      int		eol_hl_off = 0;		// 1 if highlighted char after EOL
  #ifdef FEAT_PROP_POPUP
      int		text_prop_count;
      int		text_prop_next = 0;	// next text property to use
      textprop_T	*text_props = NULL;
      int		*text_prop_idxs = NULL;
      int		text_props_active = 0;
      proptype_T  *text_prop_type = NULL;
      int		text_prop_attr = 0;
      int		text_prop_combine = FALSE;
  #endif
  #ifdef FEAT_SPELL
      int		has_spell = FALSE;	// this buffer has spell checking
      int		can_spell;
  # define SPWORDLEN 150
      char_u	nextline[SPWORDLEN * 2];// text with start of the next line
      int		nextlinecol = 0;	// column where nextline[] starts
      int		nextline_idx = 0;	// index in nextline[] where next line
  					// starts
      int		spell_attr = 0;		// attributes desired by spelling
      int		word_end = 0;		// last byte with same spell_attr
      static linenr_T  checked_lnum = 0;	// line number for "checked_col"
      static int	checked_col = 0;	// column in "checked_lnum" up to which
  					// there are no spell errors
      static int	cap_col = -1;		// column to check for Cap word
      static linenr_T capcol_lnum = 0;	// line number where "cap_col" used
      int		cur_checked_col = 0;	// checked column for current line
  #endif
      int		extra_check = 0;	// has extra highlighting
      int		multi_attr = 0;		// attributes desired by multibyte
      int		mb_l = 1;		// multi-byte byte length
      int		mb_c = 0;		// decoded multi-byte character
      int		mb_utf8 = FALSE;	// screen char is UTF-8 char
      int		u8cc[MAX_MCO];		// composing UTF-8 chars
  #if defined(FEAT_DIFF) || defined(FEAT_SIGNS)
      int		filler_lines = 0;	// nr of filler lines to be drawn
      int		filler_todo = 0;	// nr of filler lines still to do + 1
  #endif
  #ifdef FEAT_DIFF
      hlf_T	diff_hlf = (hlf_T)0;	// type of diff highlighting
      int		change_start = MAXCOL;	// first col of changed area
      int		change_end = -1;	// last col of changed area
  #endif
      colnr_T	trailcol = MAXCOL;	// start of trailing spaces
      colnr_T	leadcol = 0;		// start of leading spaces
      int		in_multispace = FALSE;	// in multiple consecutive spaces
      int		multispace_pos = 0;	// position in lcs-multispace string
  #ifdef FEAT_LINEBREAK
      int		need_showbreak = FALSE; // overlong line, skipping first x
  					// chars
  #endif
  #if defined(FEAT_SIGNS) || defined(FEAT_QUICKFIX) \
  	|| defined(FEAT_SYN_HL) || defined(FEAT_DIFF)
  # define LINE_ATTR
      int		line_attr = 0;		// attribute for the whole line
      int		line_attr_save;
  #endif
  #ifdef FEAT_SIGNS
      int		sign_present = FALSE;
      sign_attrs_T sattr;
      int		num_attr = 0;		// attribute for the number column
  #endif
  #ifdef FEAT_ARABIC
      int		prev_c = 0;		// previous Arabic character
      int		prev_c1 = 0;		// first composing char for prev_c
  #endif
  #if defined(LINE_ATTR)
      int		did_line_attr = 0;
  #endif
  #ifdef FEAT_TERMINAL
      int		get_term_attr = FALSE;
  #endif
  #ifdef FEAT_SYN_HL
      int		cul_attr = 0;		// set when 'cursorline' active
  
      // 'cursorlineopt' has "screenline" and cursor is in this line
      int		cul_screenline = FALSE;
  
      // margin columns for the screen line, needed for when 'cursorlineopt'
      // contains "screenline"
      int		left_curline_col = 0;
      int		right_curline_col = 0;
  #endif
  
      // draw_state: items that are drawn in sequence:
  #define WL_START	0		// nothing done yet
  #ifdef FEAT_CMDWIN
  # define WL_CMDLINE	WL_START + 1	// cmdline window column
  #else
  # define WL_CMDLINE	WL_START
  #endif
  #ifdef FEAT_FOLDING
  # define WL_FOLD	WL_CMDLINE + 1	// 'foldcolumn'
  #else
  # define WL_FOLD	WL_CMDLINE
  #endif
  #ifdef FEAT_SIGNS
  # define WL_SIGN	WL_FOLD + 1	// column for signs
  #else
  # define WL_SIGN	WL_FOLD		// column for signs
  #endif
  #define WL_NR		WL_SIGN + 1	// line number
  #ifdef FEAT_LINEBREAK
  # define WL_BRI		WL_NR + 1	// 'breakindent'
  #else
  # define WL_BRI		WL_NR
  #endif
  #if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
  # define WL_SBR		WL_BRI + 1	// 'showbreak' or 'diff'
  #else
  # define WL_SBR		WL_BRI
  #endif
  #define WL_LINE		WL_SBR + 1	// text in the line
      int		draw_state = WL_START;	// what to draw next
  #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
      int		feedback_col = 0;
      int		feedback_old_attr = -1;
  #endif
      int		screen_line_flags = 0;
  
  #if defined(FEAT_CONCEAL) || defined(FEAT_SEARCH_EXTRA)
      int		match_conc	= 0;	// cchar for match functions
      int		on_last_col     = FALSE;
  #endif
  #ifdef FEAT_CONCEAL
      int		syntax_flags	= 0;
      int		syntax_seqnr	= 0;
      int		prev_syntax_id	= 0;
      int		conceal_attr	= HL_ATTR(HLF_CONCEAL);
      int		is_concealing	= FALSE;
      int		boguscols	= 0;	// nonexistent columns added to force
  					// wrapping
      int		vcol_off	= 0;	// offset for concealed characters
      int		did_wcol	= FALSE;
      int		old_boguscols   = 0;
  # define VCOL_HLC (vcol - vcol_off)
  # define FIX_FOR_BOGUSCOLS \
      { \
  	n_extra += vcol_off; \
  	vcol -= vcol_off; \
  	vcol_off = 0; \
  	col -= boguscols; \
  	old_boguscols = boguscols; \
  	boguscols = 0; \
      }
  #else
  # define VCOL_HLC (vcol)
  #endif
  
      if (startrow > endrow)		// past the end already!
  	return startrow;
  
      row = startrow;
      screen_row = row + W_WINROW(wp);
  
      if (!number_only)
      {
  	// To speed up the loop below, set extra_check when there is linebreak,
  	// trailing white space and/or syntax processing to be done.
  #ifdef FEAT_LINEBREAK
  	extra_check = wp->w_p_lbr;
  #endif
  #ifdef FEAT_SYN_HL
  	if (syntax_present(wp) && !wp->w_s->b_syn_error
  # ifdef SYN_TIME_LIMIT
  		&& !wp->w_s->b_syn_slow
  # endif
  	   )
  	{
  	    // Prepare for syntax highlighting in this line.  When there is an
  	    // error, stop syntax highlighting.
  	    save_did_emsg = did_emsg;
  	    did_emsg = FALSE;
  	    syntax_start(wp, lnum);
  	    if (did_emsg)
  		wp->w_s->b_syn_error = TRUE;
  	    else
  	    {
  		did_emsg = save_did_emsg;
  #ifdef SYN_TIME_LIMIT
  		if (!wp->w_s->b_syn_slow)
  #endif
  		{
  		    has_syntax = TRUE;
  		    extra_check = TRUE;
  		}
  	    }
  	}
  
  	// Check for columns to display for 'colorcolumn'.
  	color_cols = wp->w_p_cc_cols;
  	if (color_cols != NULL)
  	    draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
  #endif
  
  #ifdef FEAT_TERMINAL
  	if (term_show_buffer(wp->w_buffer))
  	{
  	    extra_check = TRUE;
  	    get_term_attr = TRUE;
  	    win_attr = term_get_attr(wp, lnum, -1);
  	}
  #endif
  
  #ifdef FEAT_SPELL
  	if (wp->w_p_spell
  		&& *wp->w_s->b_p_spl != NUL
  		&& wp->w_s->b_langp.ga_len > 0
  		&& *(char **)(wp->w_s->b_langp.ga_data) != NULL)
  	{
  	    // Prepare for spell checking.
  	    has_spell = TRUE;
  	    extra_check = TRUE;
  
  	    // Get the start of the next line, so that words that wrap to the
  	    // next line are found too: "et<line-break>al.".
  	    // Trick: skip a few chars for C/shell/Vim comments
  	    nextline[SPWORDLEN] = NUL;
  	    if (lnum < wp->w_buffer->b_ml.ml_line_count)
  	    {
  		line = ml_get_buf(wp->w_buffer, lnum + 1, FALSE);
  		spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN);
  	    }
  
  	    // When a word wrapped from the previous line the start of the
  	    // current line is valid.
  	    if (lnum == checked_lnum)
  		cur_checked_col = checked_col;
  	    checked_lnum = 0;
  
  	    // When there was a sentence end in the previous line may require a
  	    // word starting with capital in this line.  In line 1 always check
  	    // the first word.
  	    if (lnum != capcol_lnum)
  		cap_col = -1;
  	    if (lnum == 1)
  		cap_col = 0;
  	    capcol_lnum = 0;
  	}
  #endif
  
  	// handle Visual active in this window
  	if (VIsual_active && wp->w_buffer == curwin->w_buffer)
  	{
  	    pos_T	*top, *bot;
  
  	    if (LTOREQ_POS(curwin->w_cursor, VIsual))
  	    {
  		// Visual is after curwin->w_cursor
  		top = &curwin->w_cursor;
  		bot = &VIsual;
  	    }
  	    else
  	    {
  		// Visual is before curwin->w_cursor
  		top = &VIsual;
  		bot = &curwin->w_cursor;
  	    }
  	    lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum);
  	    if (VIsual_mode == Ctrl_V)
  	    {
  		// block mode
  		if (lnum_in_visual_area)
  		{
  		    fromcol = wp->w_old_cursor_fcol;
  		    tocol = wp->w_old_cursor_lcol;
  		}
  	    }
  	    else
  	    {
  		// non-block mode
  		if (lnum > top->lnum && lnum <= bot->lnum)
  		    fromcol = 0;
  		else if (lnum == top->lnum)
  		{
  		    if (VIsual_mode == 'V')	// linewise
  			fromcol = 0;
  		    else
  		    {
  			getvvcol(wp, top, (colnr_T *)&fromcol, NULL, NULL);
  			if (gchar_pos(top) == NUL)
  			    tocol = fromcol + 1;
  		    }
  		}
  		if (VIsual_mode != 'V' && lnum == bot->lnum)
  		{
  		    if (*p_sel == 'e' && bot->col == 0 && bot->coladd == 0)
  		    {
  			fromcol = -10;
  			tocol = MAXCOL;
  		    }
  		    else if (bot->col == MAXCOL)
  			tocol = MAXCOL;
  		    else
  		    {
  			pos = *bot;
  			if (*p_sel == 'e')
  			    getvvcol(wp, &pos, (colnr_T *)&tocol, NULL, NULL);
  			else
  			{
  			    getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&tocol);
  			    ++tocol;
  			}
  		    }
  		}
  	    }
  
  	    // Check if the character under the cursor should not be inverted
  	    if (!highlight_match && lnum == curwin->w_cursor.lnum
  								&& wp == curwin
  #ifdef FEAT_GUI
  		    && !gui.in_use
  #endif
  		    )
  		noinvcur = TRUE;
  
  	    // if inverting in this line set area_highlighting
  	    if (fromcol >= 0)
  	    {
  		area_highlighting = TRUE;
  		vi_attr = HL_ATTR(HLF_V);
  #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
  		if ((clip_star.available && !clip_star.owned
  						      && clip_isautosel_star())
  			|| (clip_plus.available && !clip_plus.owned
  						     && clip_isautosel_plus()))
  		    vi_attr = HL_ATTR(HLF_VNC);
  #endif
  	    }
  	}
  
  	// handle 'incsearch' and ":s///c" highlighting
  	else if (highlight_match
  		&& wp == curwin
  		&& lnum >= curwin->w_cursor.lnum
  		&& lnum <= curwin->w_cursor.lnum + search_match_lines)
  	{
  	    if (lnum == curwin->w_cursor.lnum)
  		getvcol(curwin, &(curwin->w_cursor),
  					      (colnr_T *)&fromcol, NULL, NULL);
  	    else
  		fromcol = 0;
  	    if (lnum == curwin->w_cursor.lnum + search_match_lines)
  	    {
  		pos.lnum = lnum;
  		pos.col = search_match_endcol;
  		getvcol(curwin, &pos, (colnr_T *)&tocol, NULL, NULL);
  	    }
  	    else
  		tocol = MAXCOL;
  	    // do at least one character; happens when past end of line
  	    if (fromcol == tocol && search_match_endcol)
  		tocol = fromcol + 1;
  	    area_highlighting = TRUE;
  	    vi_attr = HL_ATTR(HLF_I);
  	}
      }
  
  #ifdef FEAT_DIFF
      filler_lines = diff_check(wp, lnum);
      if (filler_lines < 0)
      {
  	if (filler_lines == -1)
  	{
  	    if (diff_find_change(wp, lnum, &change_start, &change_end))
  		diff_hlf = HLF_ADD;	// added line
  	    else if (change_start == 0)
  		diff_hlf = HLF_TXD;	// changed text
  	    else
  		diff_hlf = HLF_CHD;	// changed line
  	}
  	else
  	    diff_hlf = HLF_ADD;		// added line
  	filler_lines = 0;
  	area_highlighting = TRUE;
      }
      if (lnum == wp->w_topline)
  	filler_lines = wp->w_topfill;
      filler_todo = filler_lines;
  #endif
  
  #ifdef FEAT_SIGNS
      sign_present = buf_get_signattrs(wp, lnum, &sattr);
      if (sign_present)
  	num_attr = sattr.sat_numhl;
  #endif
  
  #ifdef LINE_ATTR
  # ifdef FEAT_SIGNS
      // If this line has a sign with line highlighting set line_attr.
      if (sign_present)
  	line_attr = sattr.sat_linehl;
  # endif
  # if defined(FEAT_QUICKFIX)
      // Highlight the current line in the quickfix window.
      if (bt_quickfix(wp->w_buffer) && qf_current_entry(wp) == lnum)
  	line_attr = HL_ATTR(HLF_QFL);
  # endif
      if (line_attr != 0)
  	area_highlighting = TRUE;
  #endif
  
      line = ml_get_buf(wp->w_buffer, lnum, FALSE);
      ptr = line;
  
  #ifdef FEAT_SPELL
      if (has_spell && !number_only)
      {
  	// For checking first word with a capital skip white space.
  	if (cap_col == 0)
  	    cap_col = getwhitecols(line);
  
  	// To be able to spell-check over line boundaries copy the end of the
  	// current line into nextline[].  Above the start of the next line was
  	// copied to nextline[SPWORDLEN].
  	if (nextline[SPWORDLEN] == NUL)
  	{
  	    // No next line or it is empty.
  	    nextlinecol = MAXCOL;
  	    nextline_idx = 0;
  	}
  	else
  	{
  	    v = (long)STRLEN(line);
  	    if (v < SPWORDLEN)
  	    {
  		// Short line, use it completely and append the start of the
  		// next line.
  		nextlinecol = 0;
  		mch_memmove(nextline, line, (size_t)v);
  		STRMOVE(nextline + v, nextline + SPWORDLEN);
  		nextline_idx = v + 1;
  	    }
  	    else
  	    {
  		// Long line, use only the last SPWORDLEN bytes.
  		nextlinecol = v - SPWORDLEN;
  		mch_memmove(nextline, line + nextlinecol, SPWORDLEN);
  		nextline_idx = SPWORDLEN + 1;
  	    }
  	}
      }
  #endif
  
      if (wp->w_p_list)
      {
  	if (wp->w_lcs_chars.space
  		|| wp->w_lcs_chars.multispace != NULL
  		|| wp->w_lcs_chars.trail
  		|| wp->w_lcs_chars.lead
  		|| wp->w_lcs_chars.nbsp)
  	    extra_check = TRUE;
  
  	// find start of trailing whitespace
  	if (wp->w_lcs_chars.trail)
  	{
  	    trailcol = (colnr_T)STRLEN(ptr);
  	    while (trailcol > (colnr_T)0 && VIM_ISWHITE(ptr[trailcol - 1]))
  		--trailcol;
  	    trailcol += (colnr_T) (ptr - line);
  	}
  	// find end of leading whitespace
  	if (wp->w_lcs_chars.lead)
  	{
  	    leadcol = 0;
  	    while (VIM_ISWHITE(ptr[leadcol]))
  		++leadcol;
  	    if (ptr[leadcol] == NUL)
  		// in a line full of spaces all of them are treated as trailing
  		leadcol = (colnr_T)0;
  	    else
  		// keep track of the first column not filled with spaces
  		leadcol += (colnr_T) (ptr - line) + 1;
  	}
      }
  
      wcr_attr = get_wcr_attr(wp);
      if (wcr_attr != 0)
      {
  	win_attr = wcr_attr;
  	area_highlighting = TRUE;
      }
  
  #ifdef FEAT_PROP_POPUP
      if (WIN_IS_POPUP(wp))
  	screen_line_flags |= SLF_POPUP;
  #endif
  
      // 'nowrap' or 'wrap' and a single line that doesn't fit: Advance to the
      // first character to be displayed.
      if (wp->w_p_wrap)
  	v = wp->w_skipcol;
      else
  	v = wp->w_leftcol;
      if (v > 0 && !number_only)
      {
  	char_u	*prev_ptr = ptr;
  
  	while (vcol < v && *ptr != NUL)
  	{
  	    c = win_lbr_chartabsize(wp, line, ptr, (colnr_T)vcol, NULL);
  	    vcol += c;
  	    prev_ptr = ptr;
  	    MB_PTR_ADV(ptr);
  	}
  
  	// When:
  	// - 'cuc' is set, or
  	// - 'colorcolumn' is set, or
  	// - 'virtualedit' is set, or
  	// - the visual mode is active,
  	// the end of the line may be before the start of the displayed part.
  	if (vcol < v && (
  #ifdef FEAT_SYN_HL
  	     wp->w_p_cuc || draw_color_col ||
  #endif
  	     virtual_active() ||
  	     (VIsual_active && wp->w_buffer == curwin->w_buffer)))
  	    vcol = v;
  
  	// Handle a character that's not completely on the screen: Put ptr at
  	// that character but skip the first few screen characters.
  	if (vcol > v)
  	{
  	    vcol -= c;
  	    ptr = prev_ptr;
  	    // If the character fits on the screen, don't need to skip it.
  	    // Except for a TAB.
  	    if (( (*mb_ptr2cells)(ptr) >= c || *ptr == TAB) && col == 0)
  	       n_skip = v - vcol;
  	}
  
  	// Adjust for when the inverted text is before the screen,
  	// and when the start of the inverted text is before the screen.
  	if (tocol <= vcol)
  	    fromcol = 0;
  	else if (fromcol >= 0 && fromcol < vcol)
  	    fromcol = vcol;
  
  #ifdef FEAT_LINEBREAK
  	// When w_skipcol is non-zero, first line needs 'showbreak'
  	if (wp->w_p_wrap)
  	    need_showbreak = TRUE;
  #endif
  #ifdef FEAT_SPELL
  	// When spell checking a word we need to figure out the start of the
  	// word and if it's badly spelled or not.
  	if (has_spell)
  	{
  	    int		len;
  	    colnr_T	linecol = (colnr_T)(ptr - line);
  	    hlf_T	spell_hlf = HLF_COUNT;
  
  	    pos = wp->w_cursor;
  	    wp->w_cursor.lnum = lnum;
  	    wp->w_cursor.col = linecol;
  	    len = spell_move_to(wp, FORWARD, TRUE, TRUE, &spell_hlf);
  
  	    // spell_move_to() may call ml_get() and make "line" invalid
  	    line = ml_get_buf(wp->w_buffer, lnum, FALSE);
  	    ptr = line + linecol;
  
  	    if (len == 0 || (int)wp->w_cursor.col > ptr - line)
  	    {
  		// no bad word found at line start, don't check until end of a
  		// word
  		spell_hlf = HLF_COUNT;
  		word_end = (int)(spell_to_word_end(ptr, wp) - line + 1);
  	    }
  	    else
  	    {
  		// bad word found, use attributes until end of word
  		word_end = wp->w_cursor.col + len + 1;
  
  		// Turn index into actual attributes.
  		if (spell_hlf != HLF_COUNT)
  		    spell_attr = highlight_attr[spell_hlf];
  	    }
  	    wp->w_cursor = pos;
  
  # ifdef FEAT_SYN_HL
  	    // Need to restart syntax highlighting for this line.
  	    if (has_syntax)
  		syntax_start(wp, lnum);
  # endif
  	}
  #endif
      }
  
      // Correct highlighting for cursor that can't be disabled.
      // Avoids having to check this for each character.
      if (fromcol >= 0)
      {
  	if (noinvcur)
  	{
  	    if ((colnr_T)fromcol == wp->w_virtcol)
  	    {
  		// highlighting starts at cursor, let it start just after the
  		// cursor
  		fromcol_prev = fromcol;
  		fromcol = -1;
  	    }
  	    else if ((colnr_T)fromcol < wp->w_virtcol)
  		// restart highlighting after the cursor
  		fromcol_prev = wp->w_virtcol;
  	}
  	if (fromcol >= tocol)
  	    fromcol = -1;
      }
  
  #ifdef FEAT_SEARCH_EXTRA
      if (!number_only)
      {
  	v = (long)(ptr - line);
  	area_highlighting |= prepare_search_hl_line(wp, lnum, (colnr_T)v,
  					      &line, &screen_search_hl,
  					      &search_attr);
  	ptr = line + v; // "line" may have been updated
      }
  #endif
  
  #ifdef FEAT_SYN_HL
      // Cursor line highlighting for 'cursorline' in the current window.
      if (wp->w_p_cul && lnum == wp->w_cursor.lnum)
      {
  	// Do not show the cursor line in the text when Visual mode is active,
  	// because it's not clear what is selected then.  Do update
  	// w_last_cursorline.
  	if (!(wp == curwin && VIsual_active)
  					 && wp->w_p_culopt_flags != CULOPT_NBR)
  	{
  	    cul_screenline = (wp->w_p_wrap
  				   && (wp->w_p_culopt_flags & CULOPT_SCRLINE));
  
  	    // Only set line_attr here when "screenline" is not present in
  	    // 'cursorlineopt'.  Otherwise it's done later.
  	    if (!cul_screenline)
  	    {
  		cul_attr = HL_ATTR(HLF_CUL);
  # ifdef FEAT_SIGNS
  		// Combine the 'cursorline' and sign highlighting, depending on
  		// the sign priority.
  		if (sign_present && sattr.sat_linehl > 0)
  		{
  		    if (sattr.sat_priority >= 100)
  			line_attr = hl_combine_attr(cul_attr, line_attr);
  		    else
  			line_attr = hl_combine_attr(line_attr, cul_attr);
  		}
  		else
  # endif
  		    line_attr = cul_attr;
  		wp->w_last_cursorline = wp->w_cursor.lnum;
  	    }
  	    else
  	    {
  		line_attr_save = line_attr;
  		wp->w_last_cursorline = 0;
  		margin_columns_win(wp, &left_curline_col, &right_curline_col);
  	    }
  	    area_highlighting = TRUE;
  	}
  	else
  	    wp->w_last_cursorline = wp->w_cursor.lnum;
      }
  #endif
  
  #ifdef FEAT_PROP_POPUP
      {
  	char_u *prop_start;
  
  	text_prop_count = get_text_props(wp->w_buffer, lnum,
  							   &prop_start, FALSE);
  	if (text_prop_count > 0)
  	{
  	    // Make a copy of the properties, so that they are properly
  	    // aligned.
  	    text_props = ALLOC_MULT(textprop_T, text_prop_count);
  	    if (text_props != NULL)
  		mch_memmove(text_props, prop_start,
  					 text_prop_count * sizeof(textprop_T));
  
  	    // Allocate an array for the indexes.
  	    text_prop_idxs = ALLOC_MULT(int, text_prop_count);
  	    area_highlighting = TRUE;
  	    extra_check = TRUE;
  	}
      }
  #endif
  
      off = (unsigned)(current_ScreenLine - ScreenLines);
      col = 0;
  
  #ifdef FEAT_RIGHTLEFT
      if (wp->w_p_rl)
      {
  	// Rightleft window: process the text in the normal direction, but put
  	// it in current_ScreenLine[] from right to left.  Start at the
  	// rightmost column of the window.
  	col = wp->w_width - 1;
  	off += col;
  	screen_line_flags |= SLF_RIGHTLEFT;
      }
  #endif
  
      // Repeat for the whole displayed line.
      for (;;)
      {
  #if defined(FEAT_CONCEAL) || defined(FEAT_SEARCH_EXTRA)
  	int has_match_conc = 0;	// match wants to conceal
  #endif
  #ifdef FEAT_CONCEAL
  	int did_decrement_ptr = FALSE;
  #endif
  	// Skip this quickly when working on the text.
  	if (draw_state != WL_LINE)
  	{
  #ifdef FEAT_SYN_HL
  	    if (cul_screenline)
  	    {
  		cul_attr = 0;
  		line_attr = line_attr_save;
  	    }
  #endif
  
  #ifdef FEAT_CMDWIN
  	    if (draw_state == WL_CMDLINE - 1 && n_extra == 0)
  	    {
  		draw_state = WL_CMDLINE;
  		if (cmdwin_type != 0 && wp == curwin)
  		{
  		    // Draw the cmdline character.
  		    n_extra = 1;
  		    c_extra = cmdwin_type;
  		    c_final = NUL;
  		    char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_AT));
  		}
  	    }
  #endif
  
  #ifdef FEAT_FOLDING
  	    if (draw_state == WL_FOLD - 1 && n_extra == 0)
  	    {
  		int fdc = compute_foldcolumn(wp, 0);
  
  		draw_state = WL_FOLD;
  		if (fdc > 0)
  		{
  		    // Draw the 'foldcolumn'.  Allocate a buffer, "extra" may
  		    // already be in use.
  		    vim_free(p_extra_free);
  		    p_extra_free = alloc(MAX_MCO * fdc + 1);
  		    if (p_extra_free != NULL)
  		    {
  			n_extra = (int)fill_foldcolumn(p_extra_free, wp,
  								  FALSE, lnum);
  			p_extra_free[n_extra] = NUL;
  			p_extra = p_extra_free;
  			c_extra = NUL;
  			c_final = NUL;
  			if (use_cursor_line_sign(wp, lnum))
  			    char_attr =
  				   hl_combine_attr(wcr_attr, HL_ATTR(HLF_CLF));
  			else
  			    char_attr =
  				    hl_combine_attr(wcr_attr, HL_ATTR(HLF_FC));
  		    }
  		}
  	    }
  #endif
  
  #ifdef FEAT_SIGNS
  	    if (draw_state == WL_SIGN - 1 && n_extra == 0)
  	    {
  		draw_state = WL_SIGN;
  		// Show the sign column when there are any signs in this
  		// buffer or when using Netbeans.
  		if (signcolumn_on(wp))
  		    get_sign_display_info(FALSE, wp, lnum, &sattr, wcr_attr,
  			    row, startrow, filler_lines, filler_todo, &c_extra,
  			    &c_final, extra, &p_extra, &n_extra, &char_attr);
  	    }
  #endif
  
  	    if (draw_state == WL_NR - 1 && n_extra == 0)
  	    {
  		draw_state = WL_NR;
  		// Display the absolute or relative line number. After the
  		// first fill with blanks when the 'n' flag isn't in 'cpo'
  		if ((wp->w_p_nu || wp->w_p_rnu)
  			&& (row == startrow
  #ifdef FEAT_DIFF
  			    + filler_lines
  #endif
  			    || vim_strchr(p_cpo, CPO_NUMCOL) == NULL))
  		{
  #ifdef FEAT_SIGNS
  		    // If 'signcolumn' is set to 'number' and a sign is present
  		    // in 'lnum', then display the sign instead of the line
  		    // number.
  		    if ((*wp->w_p_scl == 'n' && *(wp->w_p_scl + 1) == 'u')
  			    && sign_present)
  			get_sign_display_info(TRUE, wp, lnum, &sattr, wcr_attr,
  				row, startrow, filler_lines, filler_todo,
  				&c_extra, &c_final, extra, &p_extra, &n_extra,
  				&char_attr);
  		    else
  #endif
  		    {
  		      // Draw the line number (empty space after wrapping).
  		      if (row == startrow
  #ifdef FEAT_DIFF
  			    + filler_lines
  #endif
  			    )
  		      {
  			long num;
  			char *fmt = "%*ld ";
  
  			if (wp->w_p_nu && !wp->w_p_rnu)
  			    // 'number' + 'norelativenumber'
  			    num = (long)lnum;
  			else
  			{
  			    // 'relativenumber', don't use negative numbers
  			    num = labs((long)get_cursor_rel_lnum(wp, lnum));
  			    if (num == 0 && wp->w_p_nu && wp->w_p_rnu)
  			    {
  				// 'number' + 'relativenumber'
  				num = lnum;
  				fmt = "%-*ld ";
  			    }
  			}
  
  			sprintf((char *)extra, fmt,
  						number_width(wp), num);
  			if (wp->w_skipcol > 0)
  			    for (p_extra = extra; *p_extra == ' '; ++p_extra)
  				*p_extra = '-';
  #ifdef FEAT_RIGHTLEFT
  			if (wp->w_p_rl)		    // reverse line numbers
  			{
  			    char_u	*p1, *p2;
  			    int		t;
  
  			    // like rl_mirror(), but keep the space at the end
  			    p2 = skipwhite(extra);
  			    p2 = skiptowhite(p2) - 1;
  			    for (p1 = skipwhite(extra); p1 < p2; ++p1, --p2)
  			    {
  				t = *p1;
  				*p1 = *p2;
  				*p2 = t;
  			    }
  			}
  #endif
  			p_extra = extra;
  			c_extra = NUL;
  			c_final = NUL;
  		      }
  		      else
  		      {
  			c_extra = ' ';
  			c_final = NUL;
  		      }
  		      n_extra = number_width(wp) + 1;
  		      char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_N));
  #ifdef FEAT_SYN_HL
  		      // When 'cursorline' is set highlight the line number of
  		      // the current line differently.
  		      // When 'cursorlineopt' has "screenline" only highlight
  		      // the line number itself.
  		      // TODO: Can we use CursorLine instead of CursorLineNr
  		      // when CursorLineNr isn't set?
  		      if (wp->w_p_cul
  			      && lnum == wp->w_cursor.lnum
  			      && (wp->w_p_culopt_flags & CULOPT_NBR)
  			      && (row == startrow
  				  || wp->w_p_culopt_flags & CULOPT_LINE))
  			char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_CLN));
  #endif
  		      if (wp->w_p_rnu && lnum < wp->w_cursor.lnum
  						      && HL_ATTR(HLF_LNA) != 0)
  			  // Use LineNrAbove
  			  char_attr = hl_combine_attr(wcr_attr,
  							     HL_ATTR(HLF_LNA));
  		      if (wp->w_p_rnu && lnum > wp->w_cursor.lnum
  						      && HL_ATTR(HLF_LNB) != 0)
  			  // Use LineNrBelow
  			  char_attr = hl_combine_attr(wcr_attr,
  							     HL_ATTR(HLF_LNB));
  		    }
  #ifdef FEAT_SIGNS
  		    if (num_attr)
  			char_attr = num_attr;
  #endif
  		}
  	    }
  
  #ifdef FEAT_LINEBREAK
  	    if (wp->w_briopt_sbr && draw_state == WL_BRI - 1
  			    && n_extra == 0 && *get_showbreak_value(wp) != NUL)
  		// draw indent after showbreak value
  		draw_state = WL_BRI;
  	    else if (wp->w_briopt_sbr && draw_state == WL_SBR && n_extra == 0)
  		// After the showbreak, draw the breakindent
  		draw_state = WL_BRI - 1;
  
  	    // draw 'breakindent': indent wrapped text accordingly
  	    if (draw_state == WL_BRI - 1 && n_extra == 0)
  	    {
  		draw_state = WL_BRI;
  		// if need_showbreak is set, breakindent also applies
  		if (wp->w_p_bri && n_extra == 0
  					 && (row != startrow || need_showbreak)
  # ifdef FEAT_DIFF
  			&& filler_lines == 0
  # endif
  		   )
  		{
  		    char_attr = 0;
  # ifdef FEAT_DIFF
  		    if (diff_hlf != (hlf_T)0)
  			char_attr = HL_ATTR(diff_hlf);
  # endif
  		    p_extra = NULL;
  		    c_extra = ' ';
  		    c_final = NUL;
  		    n_extra = get_breakindent_win(wp,
  				       ml_get_buf(wp->w_buffer, lnum, FALSE));
  		    if (row == startrow)
  		    {
  			n_extra -= win_col_off2(wp);
  			if (n_extra < 0)
  			    n_extra = 0;
  		    }
  		    if (wp->w_skipcol > 0 && wp->w_p_wrap && wp->w_briopt_sbr)
  			need_showbreak = FALSE;
  		    // Correct end of highlighted area for 'breakindent',
  		    // required when 'linebreak' is also set.
  		    if (tocol == vcol)
  			tocol += n_extra;
  		}
  	    }
  #endif
  
  #if defined(FEAT_LINEBREAK) || defined(FEAT_DIFF)
  	    if (draw_state == WL_SBR - 1 && n_extra == 0)
  	    {
  		char_u *sbr;
  
  		draw_state = WL_SBR;
  # ifdef FEAT_DIFF
  		if (filler_todo > 0)
  		{
  		    // Draw "deleted" diff line(s).
  		    if (char2cells(fill_diff) > 1)
  		    {
  			c_extra = '-';
  			c_final = NUL;
  		    }
  		    else
  		    {
  			c_extra = fill_diff;
  			c_final = NUL;
  		    }
  #  ifdef FEAT_RIGHTLEFT
  		    if (wp->w_p_rl)
  			n_extra = col + 1;
  		    else
  #  endif
  			n_extra = wp->w_width - col;
  		    char_attr = HL_ATTR(HLF_DED);
  		}
  # endif
  # ifdef FEAT_LINEBREAK
  		sbr = get_showbreak_value(wp);
  		if (*sbr != NUL && need_showbreak)
  		{
  		    // Draw 'showbreak' at the start of each broken line.
  		    p_extra = sbr;
  		    c_extra = NUL;
  		    c_final = NUL;
  		    n_extra = (int)STRLEN(sbr);
  		    if (wp->w_skipcol == 0 || !wp->w_p_wrap)
  			need_showbreak = FALSE;
  		    vcol_sbr = vcol + MB_CHARLEN(sbr);
  		    // Correct end of highlighted area for 'showbreak',
  		    // required when 'linebreak' is also set.
  		    if (tocol == vcol)
  			tocol += n_extra;
  		    // combine 'showbreak' with 'wincolor'
  		    char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  #  ifdef FEAT_SYN_HL
  		    // combine 'showbreak' with 'cursorline'
  		    if (cul_attr != 0)
  			char_attr = hl_combine_attr(char_attr, cul_attr);
  #  endif
  		}
  # endif
  	    }
  #endif
  
  	    if (draw_state == WL_LINE - 1 && n_extra == 0)
  	    {
  		draw_state = WL_LINE;
  		if (saved_n_extra)
  		{
  		    // Continue item from end of wrapped line.
  		    n_extra = saved_n_extra;
  		    c_extra = saved_c_extra;
  		    c_final = saved_c_final;
  		    p_extra = saved_p_extra;
  		    char_attr = saved_char_attr;
  		}
  		else
  		    char_attr = win_attr;
  	    }
  	}
  #ifdef FEAT_SYN_HL
  	if (cul_screenline && draw_state == WL_LINE
  		&& vcol >= left_curline_col
  		&& vcol < right_curline_col)
  	{
  	    cul_attr = HL_ATTR(HLF_CUL);
  	    line_attr = cul_attr;
  	}
  #endif
  
  	// When still displaying '$' of change command, stop at cursor.
  	// When only displaying the (relative) line number and that's done,
  	// stop here.
  	if (((dollar_vcol >= 0 && wp == curwin
  		   && lnum == wp->w_cursor.lnum && vcol >= (long)wp->w_virtcol)
  		|| (number_only && draw_state > WL_NR))
  #ifdef FEAT_DIFF
  				   && filler_todo <= 0
  #endif
  		)
  	{
  	    screen_line(screen_row, wp->w_wincol, col, -wp->w_width,
  							    screen_line_flags);
  	    // Pretend we have finished updating the window.  Except when
  	    // 'cursorcolumn' is set.
  #ifdef FEAT_SYN_HL
  	    if (wp->w_p_cuc)
  		row = wp->w_cline_row + wp->w_cline_height;
  	    else
  #endif
  		row = wp->w_height;
  	    break;
  	}
  
  	if (draw_state == WL_LINE && (area_highlighting || extra_check))
  	{
  	    // handle Visual or match highlighting in this line
  	    if (vcol == fromcol
  		    || (has_mbyte && vcol + 1 == fromcol && n_extra == 0
  			&& (*mb_ptr2cells)(ptr) > 1)
  		    || ((int)vcol_prev == fromcol_prev
  			&& vcol_prev < vcol	// not at margin
  			&& vcol < tocol))
  		area_attr = vi_attr;		// start highlighting
  	    else if (area_attr != 0
  		    && (vcol == tocol
  			|| (noinvcur && (colnr_T)vcol == wp->w_virtcol)))
  		area_attr = 0;			// stop highlighting
  
  #ifdef FEAT_SEARCH_EXTRA
  	    if (!n_extra)
  	    {
  		// Check for start/end of 'hlsearch' and other matches.
  		// After end, check for start/end of next match.
  		// When another match, have to check for start again.
  		v = (long)(ptr - line);
  		search_attr = update_search_hl(wp, lnum, (colnr_T)v, &line,
  				      &screen_search_hl, &has_match_conc,
  				      &match_conc, did_line_attr, lcs_eol_one,
  				      &on_last_col);
  		ptr = line + v;  // "line" may have been changed
  
  		// Do not allow a conceal over EOL otherwise EOL will be missed
  		// and bad things happen.
  		if (*ptr == NUL)
  		    has_match_conc = 0;
  	    }
  #endif
  
  #ifdef FEAT_DIFF
  	    if (diff_hlf != (hlf_T)0)
  	    {
  		if (diff_hlf == HLF_CHD && ptr - line >= change_start
  							      && n_extra == 0)
  		    diff_hlf = HLF_TXD;		// changed text
  		if (diff_hlf == HLF_TXD && ptr - line > change_end
  							      && n_extra == 0)
  		    diff_hlf = HLF_CHD;		// changed line
  		line_attr = HL_ATTR(diff_hlf);
  		if (wp->w_p_cul && lnum == wp->w_cursor.lnum
  			&& wp->w_p_culopt_flags != CULOPT_NBR
  			&& (!cul_screenline || (vcol >= left_curline_col
  						&& vcol <= right_curline_col)))
  		    line_attr = hl_combine_attr(
  					  line_attr, HL_ATTR(HLF_CUL));
  	    }
  #endif
  
  #ifdef FEAT_PROP_POPUP
  	    if (text_props != NULL)
  	    {
  		int pi;
  		int bcol = (int)(ptr - line);
  
  		if (n_extra > 0
  # ifdef FEAT_LINEBREAK
  			&& !in_linebreak
  # endif
  			)
  		    --bcol;  // still working on the previous char, e.g. Tab
  
  		// Check if any active property ends.
  		for (pi = 0; pi < text_props_active; ++pi)
  		{
  		    int tpi = text_prop_idxs[pi];
  
  		    if (bcol >= text_props[tpi].tp_col - 1
  						  + text_props[tpi].tp_len)
  		    {
  			if (pi + 1 < text_props_active)
  			    mch_memmove(text_prop_idxs + pi,
  					text_prop_idxs + pi + 1,
  					sizeof(int)
  					 * (text_props_active - (pi + 1)));
  			--text_props_active;
  			--pi;
  # ifdef FEAT_LINEBREAK
  			// not exactly right but should work in most cases
  			if (in_linebreak && syntax_attr == text_prop_attr)
  			    syntax_attr = 0;
  # endif
  		    }
  		}
  
  # ifdef FEAT_LINEBREAK
  		if (n_extra > 0 && in_linebreak)
  		    // not on the next char yet, don't start another prop
  		    --bcol;
  # endif
  		// Add any text property that starts in this column.
  		while (text_prop_next < text_prop_count
  			   && bcol >= text_props[text_prop_next].tp_col - 1)
  		{
  		    if (bcol <= text_props[text_prop_next].tp_col - 1
  					   + text_props[text_prop_next].tp_len)
  			text_prop_idxs[text_props_active++] = text_prop_next;
  		    ++text_prop_next;
  		}
  
  		text_prop_attr = 0;
  		text_prop_combine = FALSE;
  		text_prop_type = NULL;
  		if (text_props_active > 0)
  		{
  		    // Sort the properties on priority and/or starting last.
  		    // Then combine the attributes, highest priority last.
  		    current_text_props = text_props;
  		    current_buf = wp->w_buffer;
  		    qsort((void *)text_prop_idxs, (size_t)text_props_active,
  					       sizeof(int), text_prop_compare);
  
  		    for (pi = 0; pi < text_props_active; ++pi)
  		    {
  			int	    tpi = text_prop_idxs[pi];
  			proptype_T  *pt = text_prop_type_by_id(
  					wp->w_buffer, text_props[tpi].tp_type);
  
  			if (pt != NULL && pt->pt_hl_id > 0)
  			{
  			    int pt_attr = syn_id2attr(pt->pt_hl_id);
  
  			    text_prop_type = pt;
  			    text_prop_attr =
  				      hl_combine_attr(text_prop_attr, pt_attr);
  			    text_prop_combine = pt->pt_flags & PT_FLAG_COMBINE;
  			}
  		    }
  		}
  	    }
  #endif
  
  #ifdef FEAT_SYN_HL
  	    if (extra_check && n_extra == 0)
  	    {
  		syntax_attr = 0;
  # ifdef FEAT_TERMINAL
  		if (get_term_attr)
  		    syntax_attr = term_get_attr(wp, lnum, vcol);
  # endif
  		// Get syntax attribute.
  		if (has_syntax)
  		{
  		    // Get the syntax attribute for the character.  If there
  		    // is an error, disable syntax highlighting.
  		    save_did_emsg = did_emsg;
  		    did_emsg = FALSE;
  
  		    v = (long)(ptr - line);
  		    if (v == prev_syntax_col)
  			// at same column again
  			syntax_attr = prev_syntax_attr;
  		    else
  		    {
  # ifdef FEAT_SPELL
  			can_spell = TRUE;
  # endif
  			syntax_attr = get_syntax_attr((colnr_T)v,
  # ifdef FEAT_SPELL
  						has_spell ? &can_spell :
  # endif
  						NULL, FALSE);
  			prev_syntax_col = v;
  			prev_syntax_attr = syntax_attr;
  		    }
  
  		    if (did_emsg)
  		    {
  			wp->w_s->b_syn_error = TRUE;
  			has_syntax = FALSE;
  			syntax_attr = 0;
  		    }
  		    else
  			did_emsg = save_did_emsg;
  # ifdef SYN_TIME_LIMIT
  		    if (wp->w_s->b_syn_slow)
  			has_syntax = FALSE;
  # endif
  
  		    // Need to get the line again, a multi-line regexp may
  		    // have made it invalid.
  		    line = ml_get_buf(wp->w_buffer, lnum, FALSE);
  		    ptr = line + v;
  # ifdef FEAT_CONCEAL
  		    // no concealing past the end of the line, it interferes
  		    // with line highlighting
  		    if (*ptr == NUL)
  			syntax_flags = 0;
  		    else
  			syntax_flags = get_syntax_info(&syntax_seqnr);
  # endif
  		}
  	    }
  # ifdef FEAT_PROP_POPUP
  	    // Combine text property highlight into syntax highlight.
  	    if (text_prop_type != NULL)
  	    {
  		if (text_prop_combine)
  		    syntax_attr = hl_combine_attr(syntax_attr, text_prop_attr);
  		else
  		    syntax_attr = text_prop_attr;
  	    }
  # endif
  #endif
  
  	    // Decide which of the highlight attributes to use.
  	    attr_pri = TRUE;
  #ifdef LINE_ATTR
  	    if (area_attr != 0)
  	    {
  		char_attr = hl_combine_attr(line_attr, area_attr);
  		if (!highlight_match)
  		    // let search highlight show in Visual area if possible
  		    char_attr = hl_combine_attr(search_attr, char_attr);
  # ifdef FEAT_SYN_HL
  		char_attr = hl_combine_attr(syntax_attr, char_attr);
  # endif
  	    }
  	    else if (search_attr != 0)
  	    {
  		char_attr = hl_combine_attr(line_attr, search_attr);
  # ifdef FEAT_SYN_HL
  		char_attr = hl_combine_attr(syntax_attr, char_attr);
  # endif
  	    }
  	    else if (line_attr != 0 && ((fromcol == -10 && tocol == MAXCOL)
  				|| vcol < fromcol || vcol_prev < fromcol_prev
  				|| vcol >= tocol))
  	    {
  		// Use line_attr when not in the Visual or 'incsearch' area
  		// (area_attr may be 0 when "noinvcur" is set).
  # ifdef FEAT_SYN_HL
  		char_attr = hl_combine_attr(syntax_attr, line_attr);
  # else
  		char_attr = line_attr;
  # endif
  		attr_pri = FALSE;
  	    }
  #else
  	    if (area_attr != 0)
  		char_attr = area_attr;
  	    else if (search_attr != 0)
  		char_attr = search_attr;
  #endif
  	    else
  	    {
  		attr_pri = FALSE;
  #ifdef FEAT_SYN_HL
  		char_attr = syntax_attr;
  #else
  		char_attr = 0;
  #endif
  	    }
  	}
  
  	// combine attribute with 'wincolor'
  	if (win_attr != 0)
  	{
  	    if (char_attr == 0)
  		char_attr = win_attr;
  	    else
  		char_attr = hl_combine_attr(win_attr, char_attr);
  	}
  
  	// Get the next character to put on the screen.
  
  	// The "p_extra" points to the extra stuff that is inserted to
  	// represent special characters (non-printable stuff) and other
  	// things.  When all characters are the same, c_extra is used.
  	// If c_final is set, it will compulsorily be used at the end.
  	// "p_extra" must end in a NUL to avoid mb_ptr2len() reads past
  	// "p_extra[n_extra]".
  	// For the '$' of the 'list' option, n_extra == 1, p_extra == "".
  	if (n_extra > 0)
  	{
  	    if (c_extra != NUL || (n_extra == 1 && c_final != NUL))
  	    {
  		c = (n_extra == 1 && c_final != NUL) ? c_final : c_extra;
  		mb_c = c;	// doesn't handle non-utf-8 multi-byte!
  		if (enc_utf8 && utf_char2len(c) > 1)
  		{
  		    mb_utf8 = TRUE;
  		    u8cc[0] = 0;
  		    c = 0xc0;
  		}
  		else
  		    mb_utf8 = FALSE;
  	    }
  	    else
  	    {
  		c = *p_extra;
  		if (has_mbyte)
  		{
  		    mb_c = c;
  		    if (enc_utf8)
  		    {
  			// If the UTF-8 character is more than one byte:
  			// Decode it into "mb_c".
  			mb_l = utfc_ptr2len(p_extra);
  			mb_utf8 = FALSE;
  			if (mb_l > n_extra)
  			    mb_l = 1;
  			else if (mb_l > 1)
  			{
  			    mb_c = utfc_ptr2char(p_extra, u8cc);
  			    mb_utf8 = TRUE;
  			    c = 0xc0;
  			}
  		    }
  		    else
  		    {
  			// if this is a DBCS character, put it in "mb_c"
  			mb_l = MB_BYTE2LEN(c);
  			if (mb_l >= n_extra)
  			    mb_l = 1;
  			else if (mb_l > 1)
  			    mb_c = (c << 8) + p_extra[1];
  		    }
  		    if (mb_l == 0)  // at the NUL at end-of-line
  			mb_l = 1;
  
  		    // If a double-width char doesn't fit display a '>' in the
  		    // last column.
  		    if ((
  # ifdef FEAT_RIGHTLEFT
  			    wp->w_p_rl ? (col <= 0) :
  # endif
  				    (col >= wp->w_width - 1))
  			    && (*mb_char2cells)(mb_c) == 2)
  		    {
  			c = '>';
  			mb_c = c;
  			mb_l = 1;
  			mb_utf8 = FALSE;
  			multi_attr = HL_ATTR(HLF_AT);
  #ifdef FEAT_SYN_HL
  			if (cul_attr)
  			    multi_attr = hl_combine_attr(multi_attr, cul_attr);
  #endif
  			multi_attr = hl_combine_attr(win_attr, multi_attr);
  
  			// put the pointer back to output the double-width
  			// character at the start of the next line.
  			++n_extra;
  			--p_extra;
  		    }
  		    else
  		    {
  			n_extra -= mb_l - 1;
  			p_extra += mb_l - 1;
  		    }
  		}
  		++p_extra;
  	    }
  	    --n_extra;
  #if defined(FEAT_LINEBREAK) && defined(FEAT_PROP_POPUP)
  	    if (n_extra <= 0)
  		in_linebreak = FALSE;
  #endif
  	}
  	else
  	{
  #ifdef FEAT_LINEBREAK
  	    int c0;
  #endif
  	    VIM_CLEAR(p_extra_free);
  
  	    // Get a character from the line itself.
  	    c = *ptr;
  #ifdef FEAT_LINEBREAK
  	    c0 = *ptr;
  #endif
  	    if (has_mbyte)
  	    {
  		mb_c = c;
  		if (enc_utf8)
  		{
  		    // If the UTF-8 character is more than one byte: Decode it
  		    // into "mb_c".
  		    mb_l = utfc_ptr2len(ptr);
  		    mb_utf8 = FALSE;
  		    if (mb_l > 1)
  		    {
  			mb_c = utfc_ptr2char(ptr, u8cc);
  			// Overlong encoded ASCII or ASCII with composing char
  			// is displayed normally, except a NUL.
  			if (mb_c < 0x80)
  			{
  			    c = mb_c;
  #ifdef FEAT_LINEBREAK
  			    c0 = mb_c;
  #endif
  			}
  			mb_utf8 = TRUE;
  
  			// At start of the line we can have a composing char.
  			// Draw it as a space with a composing char.
  			if (utf_iscomposing(mb_c))
  			{
  			    int i;
  
  			    for (i = Screen_mco - 1; i > 0; --i)
  				u8cc[i] = u8cc[i - 1];
  			    u8cc[0] = mb_c;
  			    mb_c = ' ';
  			}
  		    }
  
  		    if ((mb_l == 1 && c >= 0x80)
  			    || (mb_l >= 1 && mb_c == 0)
  			    || (mb_l > 1 && (!vim_isprintc(mb_c))))
  		    {
  			// Illegal UTF-8 byte: display as <xx>.
  			// Non-BMP character : display as ? or fullwidth ?.
  			transchar_hex(extra, mb_c);
  # ifdef FEAT_RIGHTLEFT
  			if (wp->w_p_rl)		// reverse
  			    rl_mirror(extra);
  # endif
  			p_extra = extra;
  			c = *p_extra;
  			mb_c = mb_ptr2char_adv(&p_extra);
  			mb_utf8 = (c >= 0x80);
  			n_extra = (int)STRLEN(p_extra);
  			c_extra = NUL;
  			c_final = NUL;
  			if (area_attr == 0 && search_attr == 0)
  			{
  			    n_attr = n_extra + 1;
  			    extra_attr = hl_combine_attr(
  						     win_attr, HL_ATTR(HLF_8));
  			    saved_attr2 = char_attr; // save current attr
  			}
  		    }
  		    else if (mb_l == 0)  // at the NUL at end-of-line
  			mb_l = 1;
  #ifdef FEAT_ARABIC
  		    else if (p_arshape && !p_tbidi && ARABIC_CHAR(mb_c))
  		    {
  			// Do Arabic shaping.
  			int	pc, pc1, nc;
  			int	pcc[MAX_MCO];
  
  			// The idea of what is the previous and next
  			// character depends on 'rightleft'.
  			if (wp->w_p_rl)
  			{
  			    pc = prev_c;
  			    pc1 = prev_c1;
  			    nc = utf_ptr2char(ptr + mb_l);
  			    prev_c1 = u8cc[0];
  			}
  			else
  			{
  			    pc = utfc_ptr2char(ptr + mb_l, pcc);
  			    nc = prev_c;
  			    pc1 = pcc[0];
  			}
  			prev_c = mb_c;
  
  			mb_c = arabic_shape(mb_c, &c, &u8cc[0], pc, pc1, nc);
  		    }
  		    else
  			prev_c = mb_c;
  #endif
  		}
  		else	// enc_dbcs
  		{
  		    mb_l = MB_BYTE2LEN(c);
  		    if (mb_l == 0)  // at the NUL at end-of-line
  			mb_l = 1;
  		    else if (mb_l > 1)
  		    {
  			// We assume a second byte below 32 is illegal.
  			// Hopefully this is OK for all double-byte encodings!
  			if (ptr[1] >= 32)
  			    mb_c = (c << 8) + ptr[1];
  			else
  			{
  			    if (ptr[1] == NUL)
  			    {
  				// head byte at end of line
  				mb_l = 1;
  				transchar_nonprint(wp->w_buffer, extra, c);
  			    }
  			    else
  			    {
  				// illegal tail byte
  				mb_l = 2;
  				STRCPY(extra, "XX");
  			    }
  			    p_extra = extra;
  			    n_extra = (int)STRLEN(extra) - 1;
  			    c_extra = NUL;
  			    c_final = NUL;
  			    c = *p_extra++;
  			    if (area_attr == 0 && search_attr == 0)
  			    {
  				n_attr = n_extra + 1;
  				extra_attr = hl_combine_attr(
  						     win_attr, HL_ATTR(HLF_8));
  				saved_attr2 = char_attr; // save current attr
  			    }
  			    mb_c = c;
  			}
  		    }
  		}
  		// If a double-width char doesn't fit display a '>' in the
  		// last column; the character is displayed at the start of the
  		// next line.
  		if ((
  # ifdef FEAT_RIGHTLEFT
  			    wp->w_p_rl ? (col <= 0) :
  # endif
  				(col >= wp->w_width - 1))
  			&& (*mb_char2cells)(mb_c) == 2)
  		{
  		    c = '>';
  		    mb_c = c;
  		    mb_utf8 = FALSE;
  		    mb_l = 1;
  		    multi_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  		    // Put pointer back so that the character will be
  		    // displayed at the start of the next line.
  		    --ptr;
  #ifdef FEAT_CONCEAL
  		    did_decrement_ptr = TRUE;
  #endif
  		}
  		else if (*ptr != NUL)
  		    ptr += mb_l - 1;
  
  		// If a double-width char doesn't fit at the left side display
  		// a '<' in the first column.  Don't do this for unprintable
  		// characters.
  		if (n_skip > 0 && mb_l > 1 && n_extra == 0)
  		{
  		    n_extra = 1;
  		    c_extra = MB_FILLER_CHAR;
  		    c_final = NUL;
  		    c = ' ';
  		    if (area_attr == 0 && search_attr == 0)
  		    {
  			n_attr = n_extra + 1;
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  			saved_attr2 = char_attr; // save current attr
  		    }
  		    mb_c = c;
  		    mb_utf8 = FALSE;
  		    mb_l = 1;
  		}
  
  	    }
  	    ++ptr;
  
  	    if (extra_check)
  	    {
  #ifdef FEAT_SPELL
  		// Check spelling (unless at the end of the line).
  		// Only do this when there is no syntax highlighting, the
  		// @Spell cluster is not used or the current syntax item
  		// contains the @Spell cluster.
  		v = (long)(ptr - line);
  		if (has_spell && v >= word_end && v > cur_checked_col)
  		{
  		    spell_attr = 0;
  		    if (c != 0 && (
  # ifdef FEAT_SYN_HL
  				!has_syntax ||
  # endif
  				can_spell))
  		    {
  			char_u	*prev_ptr, *p;
  			int	len;
  			hlf_T	spell_hlf = HLF_COUNT;
  
  			if (has_mbyte)
  			{
  			    prev_ptr = ptr - mb_l;
  			    v -= mb_l - 1;
  			}
  			else
  			    prev_ptr = ptr - 1;
  
  			// Use nextline[] if possible, it has the start of the
  			// next line concatenated.
  			if ((prev_ptr - line) - nextlinecol >= 0)
  			    p = nextline + (prev_ptr - line) - nextlinecol;
  			else
  			    p = prev_ptr;
  			cap_col -= (int)(prev_ptr - line);
  			len = spell_check(wp, p, &spell_hlf, &cap_col,
  								    nochange);
  			word_end = v + len;
  
  			// In Insert mode only highlight a word that
  			// doesn't touch the cursor.
  			if (spell_hlf != HLF_COUNT
  				&& (State & INSERT) != 0
  				&& wp->w_cursor.lnum == lnum
  				&& wp->w_cursor.col >=
  						    (colnr_T)(prev_ptr - line)
  				&& wp->w_cursor.col < (colnr_T)word_end)
  			{
  			    spell_hlf = HLF_COUNT;
  			    spell_redraw_lnum = lnum;
  			}
  
  			if (spell_hlf == HLF_COUNT && p != prev_ptr
  				       && (p - nextline) + len > nextline_idx)
  			{
  			    // Remember that the good word continues at the
  			    // start of the next line.
  			    checked_lnum = lnum + 1;
  			    checked_col = (int)((p - nextline)
  							 + len - nextline_idx);
  			}
  
  			// Turn index into actual attributes.
  			if (spell_hlf != HLF_COUNT)
  			    spell_attr = highlight_attr[spell_hlf];
  
  			if (cap_col > 0)
  			{
  			    if (p != prev_ptr
  				   && (p - nextline) + cap_col >= nextline_idx)
  			    {
  				// Remember that the word in the next line
  				// must start with a capital.
  				capcol_lnum = lnum + 1;
  				cap_col = (int)((p - nextline) + cap_col
  							       - nextline_idx);
  			    }
  			    else
  				// Compute the actual column.
  				cap_col += (int)(prev_ptr - line);
  			}
  		    }
  		}
  		if (spell_attr != 0)
  		{
  		    if (!attr_pri)
  			char_attr = hl_combine_attr(char_attr, spell_attr);
  		    else
  			char_attr = hl_combine_attr(spell_attr, char_attr);
  		}
  #endif
  #ifdef FEAT_LINEBREAK
  		// Found last space before word: check for line break.
  		if (wp->w_p_lbr && c0 == c
  				  && VIM_ISBREAK(c) && !VIM_ISBREAK((int)*ptr))
  		{
  		    int	    mb_off = has_mbyte ? (*mb_head_off)(line, ptr - 1)
  									   : 0;
  		    char_u  *p = ptr - (mb_off + 1);
  
  		    // TODO: is passing p for start of the line OK?
  		    n_extra = win_lbr_chartabsize(wp, line, p, (colnr_T)vcol,
  								    NULL) - 1;
  
  		    // We have just drawn the showbreak value, no need to add
  		    // space for it again.
  		    if (vcol == vcol_sbr)
  		    {
  			n_extra -= MB_CHARLEN(get_showbreak_value(wp));
  			if (n_extra < 0)
  			    n_extra = 0;
  		    }
  		    if (on_last_col && c != TAB)
  			// Do not continue search/match highlighting over the
  			// line break, but for TABs the highlighting should
  			// include the complete width of the character
  			search_attr = 0;
  
  		    if (c == TAB && n_extra + col > wp->w_width)
  # ifdef FEAT_VARTABS
  			n_extra = tabstop_padding(vcol, wp->w_buffer->b_p_ts,
  					      wp->w_buffer->b_p_vts_array) - 1;
  # else
  			n_extra = (int)wp->w_buffer->b_p_ts
  				       - vcol % (int)wp->w_buffer->b_p_ts - 1;
  # endif
  
  		    c_extra = mb_off > 0 ? MB_FILLER_CHAR : ' ';
  		    c_final = NUL;
  # if defined(FEAT_PROP_POPUP)
  		    if (n_extra > 0 && c != TAB)
  			in_linebreak = TRUE;
  # endif
  		    if (VIM_ISWHITE(c))
  		    {
  # ifdef FEAT_CONCEAL
  			if (c == TAB)
  			    // See "Tab alignment" below.
  			    FIX_FOR_BOGUSCOLS;
  # endif
  			if (!wp->w_p_list)
  			    c = ' ';
  		    }
  		}
  #endif
  
  		in_multispace = c == ' '
  		    && ((ptr > line + 1 && ptr[-2] == ' ') || *ptr == ' ');
  		if (!in_multispace)
  		    multispace_pos = 0;
  
  		// 'list': Change char 160 to 'nbsp' and space to 'space'
  		// setting in 'listchars'.  But not when the character is
  		// followed by a composing character (use mb_l to check that).
  		if (wp->w_p_list
  			&& ((((c == 160 && mb_l == 1)
  			      || (mb_utf8
  				  && ((mb_c == 160 && mb_l == 2)
  				      || (mb_c == 0x202f && mb_l == 3))))
  			     && wp->w_lcs_chars.nbsp)
  			    || (c == ' '
  				&& mb_l == 1
  				&& (wp->w_lcs_chars.space
  				    || (in_multispace
  					&& wp->w_lcs_chars.multispace != NULL))
  				&& ptr - line >= leadcol
  				&& ptr - line <= trailcol)))
  		{
  		    if (in_multispace && wp->w_lcs_chars.multispace != NULL)
  		    {
  			c = wp->w_lcs_chars.multispace[multispace_pos++];
  			if (wp->w_lcs_chars.multispace[multispace_pos] == NUL)
  			    multispace_pos = 0;
  		    }
  		    else
  			c = (c == ' ') ? wp->w_lcs_chars.space
  					: wp->w_lcs_chars.nbsp;
  		    if (area_attr == 0 && search_attr == 0)
  		    {
  			n_attr = 1;
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
  			saved_attr2 = char_attr; // save current attr
  		    }
  		    mb_c = c;
  		    if (enc_utf8 && utf_char2len(c) > 1)
  		    {
  			mb_utf8 = TRUE;
  			u8cc[0] = 0;
  			c = 0xc0;
  		    }
  		    else
  			mb_utf8 = FALSE;
  		}
  
  		if ((trailcol != MAXCOL && ptr > line + trailcol && c == ' ')
  			|| (leadcol != 0 && ptr < line + leadcol && c == ' '))
  		{
  		    c = (ptr > line + trailcol) ? wp->w_lcs_chars.trail
  							: wp->w_lcs_chars.lead;
  		    if (!attr_pri)
  		    {
  			n_attr = 1;
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
  			saved_attr2 = char_attr; // save current attr
  		    }
  		    mb_c = c;
  		    if (enc_utf8 && utf_char2len(c) > 1)
  		    {
  			mb_utf8 = TRUE;
  			u8cc[0] = 0;
  			c = 0xc0;
  		    }
  		    else
  			mb_utf8 = FALSE;
  		}
  	    }
  
  	    // Handling of non-printable characters.
  	    if (!vim_isprintc(c))
  	    {
  		// when getting a character from the file, we may have to
  		// turn it into something else on the way to putting it
  		// into "ScreenLines".
  		if (c == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1))
  		{
  		    int tab_len = 0;
  		    long vcol_adjusted = vcol; // removed showbreak length
  #ifdef FEAT_LINEBREAK
  		    char_u *sbr = get_showbreak_value(wp);
  
  		    // only adjust the tab_len, when at the first column
  		    // after the showbreak value was drawn
  		    if (*sbr != NUL && vcol == vcol_sbr && wp->w_p_wrap)
  			vcol_adjusted = vcol - MB_CHARLEN(sbr);
  #endif
  		    // tab amount depends on current column
  #ifdef FEAT_VARTABS
  		    tab_len = tabstop_padding(vcol_adjusted,
  					      wp->w_buffer->b_p_ts,
  					      wp->w_buffer->b_p_vts_array) - 1;
  #else
  		    tab_len = (int)wp->w_buffer->b_p_ts
  			       - vcol_adjusted % (int)wp->w_buffer->b_p_ts - 1;
  #endif
  
  #ifdef FEAT_LINEBREAK
  		    if (!wp->w_p_lbr || !wp->w_p_list)
  #endif
  			// tab amount depends on current column
  			n_extra = tab_len;
  #ifdef FEAT_LINEBREAK
  		    else
  		    {
  			char_u	*p;
  			int	len;
  			int	i;
  			int	saved_nextra = n_extra;
  
  # ifdef FEAT_CONCEAL
  			if (vcol_off > 0)
  			    // there are characters to conceal
  			    tab_len += vcol_off;
  
  			// boguscols before FIX_FOR_BOGUSCOLS macro from above
  			if (wp->w_p_list && wp->w_lcs_chars.tab1
  							&& old_boguscols > 0
  							&& n_extra > tab_len)
  			    tab_len += n_extra - tab_len;
  # endif
  			// If n_extra > 0, it gives the number of chars, to
  			// use for a tab, else we need to calculate the width
  			// for a tab.
  			len = (tab_len * mb_char2len(wp->w_lcs_chars.tab2));
  			if (wp->w_lcs_chars.tab3)
  			    len += mb_char2len(wp->w_lcs_chars.tab3);
  			if (n_extra > 0)
  			    len += n_extra - tab_len;
  			c = wp->w_lcs_chars.tab1;
  			p = alloc(len + 1);
  			if (p == NULL)
  			    n_extra = 0;
  			else
  			{
  			    vim_memset(p, ' ', len);
  			    p[len] = NUL;
  			    vim_free(p_extra_free);
  			    p_extra_free = p;
  			    for (i = 0; i < tab_len; i++)
  			    {
  				int lcs = wp->w_lcs_chars.tab2;
  
  				if (*p == NUL)
  				{
  				    tab_len = i;
  				    break;
  				}
  
  				// if tab3 is given, use it for the last char
  				if (wp->w_lcs_chars.tab3 && i == tab_len - 1)
  				    lcs = wp->w_lcs_chars.tab3;
  				p += mb_char2bytes(lcs, p);
  				n_extra += mb_char2len(lcs)
  						  - (saved_nextra > 0 ? 1 : 0);
  			    }
  			    p_extra = p_extra_free;
  # ifdef FEAT_CONCEAL
  			    // n_extra will be increased by FIX_FOX_BOGUSCOLS
  			    // macro below, so need to adjust for that here
  			    if (vcol_off > 0)
  				n_extra -= vcol_off;
  # endif
  			}
  		    }
  #endif
  #ifdef FEAT_CONCEAL
  		    {
  			int vc_saved = vcol_off;
  
  			// Tab alignment should be identical regardless of
  			// 'conceallevel' value. So tab compensates of all
  			// previous concealed characters, and thus resets
  			// vcol_off and boguscols accumulated so far in the
  			// line. Note that the tab can be longer than
  			// 'tabstop' when there are concealed characters.
  			FIX_FOR_BOGUSCOLS;
  
  			// Make sure, the highlighting for the tab char will be
  			// correctly set further below (effectively reverts the
  			// FIX_FOR_BOGSUCOLS macro).
  			if (n_extra == tab_len + vc_saved && wp->w_p_list
  						&& wp->w_lcs_chars.tab1)
  			    tab_len += vc_saved;
  		    }
  #endif
  		    mb_utf8 = FALSE;	// don't draw as UTF-8
  		    if (wp->w_p_list)
  		    {
  			c = (n_extra == 0 && wp->w_lcs_chars.tab3)
  							? wp->w_lcs_chars.tab3
  							: wp->w_lcs_chars.tab1;
  #ifdef FEAT_LINEBREAK
  			if (wp->w_p_lbr)
  			    c_extra = NUL; // using p_extra from above
  			else
  #endif
  			    c_extra = wp->w_lcs_chars.tab2;
  			c_final = wp->w_lcs_chars.tab3;
  			n_attr = tab_len + 1;
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
  			saved_attr2 = char_attr; // save current attr
  			mb_c = c;
  			if (enc_utf8 && utf_char2len(c) > 1)
  			{
  			    mb_utf8 = TRUE;
  			    u8cc[0] = 0;
  			    c = 0xc0;
  			}
  		    }
  		    else
  		    {
  			c_final = NUL;
  			c_extra = ' ';
  			c = ' ';
  		    }
  		}
  		else if (c == NUL
  			&& (wp->w_p_list
  			    || ((fromcol >= 0 || fromcol_prev >= 0)
  				&& tocol > vcol
  				&& VIsual_mode != Ctrl_V
  				&& (
  # ifdef FEAT_RIGHTLEFT
  				    wp->w_p_rl ? (col >= 0) :
  # endif
  				    (col < wp->w_width))
  				&& !(noinvcur
  				    && lnum == wp->w_cursor.lnum
  				    && (colnr_T)vcol == wp->w_virtcol)))
  			&& lcs_eol_one > 0)
  		{
  		    // Display a '$' after the line or highlight an extra
  		    // character if the line break is included.
  #if defined(FEAT_DIFF) || defined(LINE_ATTR)
  		    // For a diff line the highlighting continues after the
  		    // "$".
  		    if (
  # ifdef FEAT_DIFF
  			    diff_hlf == (hlf_T)0
  #  ifdef LINE_ATTR
  			    &&
  #  endif
  # endif
  # ifdef LINE_ATTR
  			    line_attr == 0
  # endif
  		       )
  #endif
  		    {
  			// In virtualedit, visual selections may extend
  			// beyond end of line.
  			if (area_highlighting && virtual_active()
  				&& tocol != MAXCOL && vcol < tocol)
  			    n_extra = 0;
  			else
  			{
  			    p_extra = at_end_str;
  			    n_extra = 1;
  			    c_extra = NUL;
  			    c_final = NUL;
  			}
  		    }
  		    if (wp->w_p_list && wp->w_lcs_chars.eol > 0)
  			c = wp->w_lcs_chars.eol;
  		    else
  			c = ' ';
  		    lcs_eol_one = -1;
  		    --ptr;	    // put it back at the NUL
  		    if (!attr_pri)
  		    {
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  			n_attr = 1;
  		    }
  		    mb_c = c;
  		    if (enc_utf8 && utf_char2len(c) > 1)
  		    {
  			mb_utf8 = TRUE;
  			u8cc[0] = 0;
  			c = 0xc0;
  		    }
  		    else
  			mb_utf8 = FALSE;	// don't draw as UTF-8
  		}
  		else if (c != NUL)
  		{
  		    p_extra = transchar_buf(wp->w_buffer, c);
  		    if (n_extra == 0)
  			n_extra = byte2cells(c) - 1;
  #ifdef FEAT_RIGHTLEFT
  		    if ((dy_flags & DY_UHEX) && wp->w_p_rl)
  			rl_mirror(p_extra);	// reverse "<12>"
  #endif
  		    c_extra = NUL;
  		    c_final = NUL;
  #ifdef FEAT_LINEBREAK
  		    if (wp->w_p_lbr)
  		    {
  			char_u *p;
  
  			c = *p_extra;
  			p = alloc(n_extra + 1);
  			vim_memset(p, ' ', n_extra);
  			STRNCPY(p, p_extra + 1, STRLEN(p_extra) - 1);
  			p[n_extra] = NUL;
  			vim_free(p_extra_free);
  			p_extra_free = p_extra = p;
  		    }
  		    else
  #endif
  		    {
  			n_extra = byte2cells(c) - 1;
  			c = *p_extra++;
  		    }
  		    if (!attr_pri)
  		    {
  			n_attr = n_extra + 1;
  			extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_8));
  			saved_attr2 = char_attr; // save current attr
  		    }
  		    mb_utf8 = FALSE;	// don't draw as UTF-8
  		}
  		else if (VIsual_active
  			 && (VIsual_mode == Ctrl_V
  			     || VIsual_mode == 'v')
  			 && virtual_active()
  			 && tocol != MAXCOL
  			 && vcol < tocol
  			 && (
  #ifdef FEAT_RIGHTLEFT
  			    wp->w_p_rl ? (col >= 0) :
  #endif
  			    (col < wp->w_width)))
  		{
  		    c = ' ';
  		    --ptr;	    // put it back at the NUL
  		}
  #if defined(LINE_ATTR)
  		else if ((
  # ifdef FEAT_DIFF
  			    diff_hlf != (hlf_T)0 ||
  # endif
  # ifdef FEAT_TERMINAL
  			    win_attr != 0 ||
  # endif
  			    line_attr != 0
  			) && (
  # ifdef FEAT_RIGHTLEFT
  			    wp->w_p_rl ? (col >= 0) :
  # endif
  			    (col
  # ifdef FEAT_CONCEAL
  				- boguscols
  # endif
  					    < wp->w_width)))
  		{
  		    // Highlight until the right side of the window
  		    c = ' ';
  		    --ptr;	    // put it back at the NUL
  
  		    // Remember we do the char for line highlighting.
  		    ++did_line_attr;
  
  		    // don't do search HL for the rest of the line
  		    if (line_attr != 0 && char_attr == search_attr
  					&& (did_line_attr > 1
  					    || (wp->w_p_list &&
  						wp->w_lcs_chars.eol > 0)))
  			char_attr = line_attr;
  # ifdef FEAT_DIFF
  		    if (diff_hlf == HLF_TXD)
  		    {
  			diff_hlf = HLF_CHD;
  			if (vi_attr == 0 || char_attr != vi_attr)
  			{
  			    char_attr = HL_ATTR(diff_hlf);
  			    if (wp->w_p_cul && lnum == wp->w_cursor.lnum
  				    && wp->w_p_culopt_flags != CULOPT_NBR
  				    && (!cul_screenline
  					|| (vcol >= left_curline_col
  						 && vcol <= right_curline_col)))
  				char_attr = hl_combine_attr(
  					  char_attr, HL_ATTR(HLF_CUL));
  			}
  		    }
  # endif
  # ifdef FEAT_TERMINAL
  		    if (win_attr != 0)
  		    {
  			char_attr = win_attr;
  			if (wp->w_p_cul && lnum == wp->w_cursor.lnum
  				    && wp->w_p_culopt_flags != CULOPT_NBR)
  			{
  			    if (!cul_screenline || (vcol >= left_curline_col
  						  && vcol <= right_curline_col))
  				char_attr = hl_combine_attr(
  					      char_attr, HL_ATTR(HLF_CUL));
  			}
  			else if (line_attr)
  			    char_attr = hl_combine_attr(char_attr, line_attr);
  		    }
  # endif
  		}
  #endif
  	    }
  
  #ifdef FEAT_CONCEAL
  	    if (   wp->w_p_cole > 0
  		&& (wp != curwin || lnum != wp->w_cursor.lnum ||
  						       conceal_cursor_line(wp))
  		&& ((syntax_flags & HL_CONCEAL) != 0 || has_match_conc > 0)
  		&& !(lnum_in_visual_area
  				    && vim_strchr(wp->w_p_cocu, 'v') == NULL))
  	    {
  		char_attr = conceal_attr;
  		if ((prev_syntax_id != syntax_seqnr || has_match_conc > 1)
  			&& (syn_get_sub_char() != NUL
  				|| (has_match_conc && match_conc)
  				|| wp->w_p_cole == 1)
  			&& wp->w_p_cole != 3)
  		{
  		    // First time at this concealed item: display one
  		    // character.
  		    if (has_match_conc && match_conc)
  			c = match_conc;
  		    else if (syn_get_sub_char() != NUL)
  			c = syn_get_sub_char();
  		    else if (wp->w_lcs_chars.conceal != NUL)
  			c = wp->w_lcs_chars.conceal;
  		    else
  			c = ' ';
  
  		    prev_syntax_id = syntax_seqnr;
  
  		    if (n_extra > 0)
  			vcol_off += n_extra;
  		    vcol += n_extra;
  		    if (wp->w_p_wrap && n_extra > 0)
  		    {
  # ifdef FEAT_RIGHTLEFT
  			if (wp->w_p_rl)
  			{
  			    col -= n_extra;
  			    boguscols -= n_extra;
  			}
  			else
  # endif
  			{
  			    boguscols += n_extra;
  			    col += n_extra;
  			}
  		    }
  		    n_extra = 0;
  		    n_attr = 0;
  		}
  		else if (n_skip == 0)
  		{
  		    is_concealing = TRUE;
  		    n_skip = 1;
  		}
  		mb_c = c;
  		if (enc_utf8 && utf_char2len(c) > 1)
  		{
  		    mb_utf8 = TRUE;
  		    u8cc[0] = 0;
  		    c = 0xc0;
  		}
  		else
  		    mb_utf8 = FALSE;	// don't draw as UTF-8
  	    }
  	    else
  	    {
  		prev_syntax_id = 0;
  		is_concealing = FALSE;
  	    }
  
  	    if (n_skip > 0 && did_decrement_ptr)
  		// not showing the '>', put pointer back to avoid getting stuck
  		++ptr;
  
  #endif // FEAT_CONCEAL
  	}
  
  #ifdef FEAT_CONCEAL
  	// In the cursor line and we may be concealing characters: correct
  	// the cursor column when we reach its position.
  	if (!did_wcol && draw_state == WL_LINE
  		&& wp == curwin && lnum == wp->w_cursor.lnum
  		&& conceal_cursor_line(wp)
  		&& (int)wp->w_virtcol <= vcol + n_skip)
  	{
  # ifdef FEAT_RIGHTLEFT
  	    if (wp->w_p_rl)
  		wp->w_wcol = wp->w_width - col + boguscols - 1;
  	    else
  # endif
  		wp->w_wcol = col - boguscols;
  	    wp->w_wrow = row;
  	    did_wcol = TRUE;
  	    curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
  # ifdef FEAT_PROP_POPUP
  	    curwin->w_flags &= ~(WFLAG_WCOL_OFF_ADDED | WFLAG_WROW_OFF_ADDED);
  # endif
  	}
  #endif
  
  	// Don't override visual selection highlighting.
  	if (n_attr > 0
  		&& draw_state == WL_LINE
  		&& !attr_pri)
  	{
  #ifdef LINE_ATTR
  	    if (line_attr)
  		char_attr = hl_combine_attr(extra_attr, line_attr);
  	    else
  #endif
  		char_attr = extra_attr;
  	}
  
  #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
  	// XIM don't send preedit_start and preedit_end, but they send
  	// preedit_changed and commit.  Thus Vim can't set "im_is_active", use
  	// im_is_preediting() here.
  	if (p_imst == IM_ON_THE_SPOT
  		&& xic != NULL
  		&& lnum == wp->w_cursor.lnum
  		&& (State & INSERT)
  		&& !p_imdisable
  		&& im_is_preediting()
  		&& draw_state == WL_LINE)
  	{
  	    colnr_T tcol;
  
  	    if (preedit_end_col == MAXCOL)
  		getvcol(curwin, &(wp->w_cursor), &tcol, NULL, NULL);
  	    else
  		tcol = preedit_end_col;
  	    if ((long)preedit_start_col <= vcol && vcol < (long)tcol)
  	    {
  		if (feedback_old_attr < 0)
  		{
  		    feedback_col = 0;
  		    feedback_old_attr = char_attr;
  		}
  		char_attr = im_get_feedback_attr(feedback_col);
  		if (char_attr < 0)
  		    char_attr = feedback_old_attr;
  		feedback_col++;
  	    }
  	    else if (feedback_old_attr >= 0)
  	    {
  		char_attr = feedback_old_attr;
  		feedback_old_attr = -1;
  		feedback_col = 0;
  	    }
  	}
  #endif
  	// Handle the case where we are in column 0 but not on the first
  	// character of the line and the user wants us to show us a
  	// special character (via 'listchars' option "precedes:<char>".
  	if (lcs_prec_todo != NUL
  		&& wp->w_p_list
  		&& (wp->w_p_wrap ?
  		    (wp->w_skipcol > 0  && row == 0) :
  		    wp->w_leftcol > 0)
  #ifdef FEAT_DIFF
  		&& filler_todo <= 0
  #endif
  		&& draw_state > WL_NR
  		&& c != NUL)
  	{
  	    c = wp->w_lcs_chars.prec;
  	    lcs_prec_todo = NUL;
  	    if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
  	    {
  		// Double-width character being overwritten by the "precedes"
  		// character, need to fill up half the character.
  		c_extra = MB_FILLER_CHAR;
  		c_final = NUL;
  		n_extra = 1;
  		n_attr = 2;
  		extra_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  	    }
  	    mb_c = c;
  	    if (enc_utf8 && utf_char2len(c) > 1)
  	    {
  		mb_utf8 = TRUE;
  		u8cc[0] = 0;
  		c = 0xc0;
  	    }
  	    else
  		mb_utf8 = FALSE;	// don't draw as UTF-8
  	    if (!attr_pri)
  	    {
  		saved_attr3 = char_attr; // save current attr
  		char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  		n_attr3 = 1;
  	    }
  	}
  
  	// At end of the text line or just after the last character.
  	if ((c == NUL
  #if defined(LINE_ATTR)
  		|| did_line_attr == 1
  #endif
  		) && eol_hl_off == 0)
  	{
  #ifdef FEAT_SEARCH_EXTRA
  	    // flag to indicate whether prevcol equals startcol of search_hl or
  	    // one of the matches
  	    int prevcol_hl_flag = get_prevcol_hl_flag(wp, &screen_search_hl,
  					      (long)(ptr - line) - (c == NUL));
  #endif
  	    // Invert at least one char, used for Visual and empty line or
  	    // highlight match at end of line. If it's beyond the last
  	    // char on the screen, just overwrite that one (tricky!)  Not
  	    // needed when a '$' was displayed for 'list'.
  	    if (wp->w_lcs_chars.eol == lcs_eol_one
  		    && ((area_attr != 0 && vcol == fromcol
  			    && (VIsual_mode != Ctrl_V
  				|| lnum == VIsual.lnum
  				|| lnum == curwin->w_cursor.lnum)
  			    && c == NUL)
  #ifdef FEAT_SEARCH_EXTRA
  			// highlight 'hlsearch' match at end of line
  			|| (prevcol_hl_flag
  # ifdef FEAT_SYN_HL
  			    && !(wp->w_p_cul && lnum == wp->w_cursor.lnum
  				    && !(wp == curwin && VIsual_active))
  # endif
  # ifdef FEAT_DIFF
  			    && diff_hlf == (hlf_T)0
  # endif
  # if defined(LINE_ATTR)
  			    && did_line_attr <= 1
  # endif
  			   )
  #endif
  		       ))
  	    {
  		int n = 0;
  
  #ifdef FEAT_RIGHTLEFT
  		if (wp->w_p_rl)
  		{
  		    if (col < 0)
  			n = 1;
  		}
  		else
  #endif
  		{
  		    if (col >= wp->w_width)
  			n = -1;
  		}
  		if (n != 0)
  		{
  		    // At the window boundary, highlight the last character
  		    // instead (better than nothing).
  		    off += n;
  		    col += n;
  		}
  		else
  		{
  		    // Add a blank character to highlight.
  		    ScreenLines[off] = ' ';
  		    if (enc_utf8)
  			ScreenLinesUC[off] = 0;
  		}
  #ifdef FEAT_SEARCH_EXTRA
  		if (area_attr == 0)
  		{
  		    // Use attributes from match with highest priority among
  		    // 'search_hl' and the match list.
  		    get_search_match_hl(wp, &screen_search_hl,
  					       (long)(ptr - line), &char_attr);
  		}
  #endif
  		ScreenAttrs[off] = char_attr;
  #ifdef FEAT_RIGHTLEFT
  		if (wp->w_p_rl)
  		{
  		    --col;
  		    --off;
  		}
  		else
  #endif
  		{
  		    ++col;
  		    ++off;
  		}
  		++vcol;
  		eol_hl_off = 1;
  	    }
  	}
  
  	// At end of the text line.
  	if (c == NUL)
  	{
  #ifdef FEAT_SYN_HL
  	    // Highlight 'cursorcolumn' & 'colorcolumn' past end of the line.
  	    if (wp->w_p_wrap)
  		v = wp->w_skipcol;
  	    else
  		v = wp->w_leftcol;
  
  	    // check if line ends before left margin
  	    if (vcol < v + col - win_col_off(wp))
  		vcol = v + col - win_col_off(wp);
  #ifdef FEAT_CONCEAL
  	    // Get rid of the boguscols now, we want to draw until the right
  	    // edge for 'cursorcolumn'.
  	    col -= boguscols;
  	    boguscols = 0;
  #endif
  
  	    if (draw_color_col)
  		draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
  
  	    if (((wp->w_p_cuc
  		      && (int)wp->w_virtcol >= VCOL_HLC - eol_hl_off
  		      && (int)wp->w_virtcol <
  					wp->w_width * (row - startrow + 1) + v
  		      && lnum != wp->w_cursor.lnum)
  		    || draw_color_col
  		    || win_attr != 0)
  # ifdef FEAT_RIGHTLEFT
  		    && !wp->w_p_rl
  # endif
  		    )
  	    {
  		int	rightmost_vcol = 0;
  		int	i;
  
  		if (wp->w_p_cuc)
  		    rightmost_vcol = wp->w_virtcol;
  		if (draw_color_col)
  		    // determine rightmost colorcolumn to possibly draw
  		    for (i = 0; color_cols[i] >= 0; ++i)
  			if (rightmost_vcol < color_cols[i])
  			    rightmost_vcol = color_cols[i];
  
  		while (col < wp->w_width)
  		{
  		    ScreenLines[off] = ' ';
  		    if (enc_utf8)
  			ScreenLinesUC[off] = 0;
  		    ++col;
  		    if (draw_color_col)
  			draw_color_col = advance_color_col(VCOL_HLC,
  								 &color_cols);
  
  		    if (wp->w_p_cuc && VCOL_HLC == (long)wp->w_virtcol)
  			ScreenAttrs[off++] = HL_ATTR(HLF_CUC);
  		    else if (draw_color_col && VCOL_HLC == *color_cols)
  			ScreenAttrs[off++] = HL_ATTR(HLF_MC);
  		    else
  			ScreenAttrs[off++] = win_attr;
  
  		    if (VCOL_HLC >= rightmost_vcol && win_attr == 0)
  			break;
  
  		    ++vcol;
  		}
  	    }
  #endif
  
  	    screen_line(screen_row, wp->w_wincol, col,
  					  wp->w_width, screen_line_flags);
  	    row++;
  
  	    // Update w_cline_height and w_cline_folded if the cursor line was
  	    // updated (saves a call to plines() later).
  	    if (wp == curwin && lnum == curwin->w_cursor.lnum)
  	    {
  		curwin->w_cline_row = startrow;
  		curwin->w_cline_height = row - startrow;
  #ifdef FEAT_FOLDING
  		curwin->w_cline_folded = FALSE;
  #endif
  		curwin->w_valid |= (VALID_CHEIGHT|VALID_CROW);
  	    }
  
  	    break;
  	}
  
  	// Show "extends" character from 'listchars' if beyond the line end and
  	// 'list' is set.
  	if (wp->w_lcs_chars.ext != NUL
  		&& draw_state == WL_LINE
  		&& wp->w_p_list
  		&& !wp->w_p_wrap
  #ifdef FEAT_DIFF
  		&& filler_todo <= 0
  #endif
  		&& (
  #ifdef FEAT_RIGHTLEFT
  		    wp->w_p_rl ? col == 0 :
  #endif
  		    col == wp->w_width - 1)
  		&& (*ptr != NUL
  		    || (wp->w_p_list && lcs_eol_one > 0)
  		    || (n_extra && (c_extra != NUL || *p_extra != NUL))))
  	{
  	    c = wp->w_lcs_chars.ext;
  	    char_attr = hl_combine_attr(win_attr, HL_ATTR(HLF_AT));
  	    mb_c = c;
  	    if (enc_utf8 && utf_char2len(c) > 1)
  	    {
  		mb_utf8 = TRUE;
  		u8cc[0] = 0;
  		c = 0xc0;
  	    }
  	    else
  		mb_utf8 = FALSE;
  	}
  
  #ifdef FEAT_SYN_HL
  	// advance to the next 'colorcolumn'
  	if (draw_color_col)
  	    draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
  
  	// Highlight the cursor column if 'cursorcolumn' is set.  But don't
  	// highlight the cursor position itself.
  	// Also highlight the 'colorcolumn' if it is different than
  	// 'cursorcolumn'
  	// Also highlight the 'colorcolumn' if 'breakindent' and/or 'showbreak'
  	// options are set
  	vcol_save_attr = -1;
  	if (((draw_state == WL_LINE ||
  	     draw_state == WL_BRI ||
  	     draw_state == WL_SBR) && !lnum_in_visual_area
  		&& search_attr == 0 && area_attr == 0)
  # ifdef FEAT_DIFF
  			&& filler_todo <= 0
  # endif
  		)
  	{
  	    if (wp->w_p_cuc && VCOL_HLC == (long)wp->w_virtcol
  						 && lnum != wp->w_cursor.lnum)
  	    {
  		vcol_save_attr = char_attr;
  		char_attr = hl_combine_attr(char_attr, HL_ATTR(HLF_CUC));
  	    }
  	    else if (draw_color_col && VCOL_HLC == *color_cols)
  	    {
  		vcol_save_attr = char_attr;
  		char_attr = hl_combine_attr(char_attr, HL_ATTR(HLF_MC));
  	    }
  	}
  #endif
  
  	// Store character to be displayed.
  	// Skip characters that are left of the screen for 'nowrap'.
  	vcol_prev = vcol;
  	if (draw_state < WL_LINE || n_skip <= 0)
  	{
  	    // Store the character.
  #if defined(FEAT_RIGHTLEFT)
  	    if (has_mbyte && wp->w_p_rl && (*mb_char2cells)(mb_c) > 1)
  	    {
  		// A double-wide character is: put first half in left cell.
  		--off;
  		--col;
  	    }
  #endif
  	    ScreenLines[off] = c;
  	    if (enc_dbcs == DBCS_JPNU)
  	    {
  		if ((mb_c & 0xff00) == 0x8e00)
  		    ScreenLines[off] = 0x8e;
  		ScreenLines2[off] = mb_c & 0xff;
  	    }
  	    else if (enc_utf8)
  	    {
  		if (mb_utf8)
  		{
  		    int i;
  
  		    ScreenLinesUC[off] = mb_c;
  		    if ((c & 0xff) == 0)
  			ScreenLines[off] = 0x80;   // avoid storing zero
  		    for (i = 0; i < Screen_mco; ++i)
  		    {
  			ScreenLinesC[i][off] = u8cc[i];
  			if (u8cc[i] == 0)
  			    break;
  		    }
  		}
  		else
  		    ScreenLinesUC[off] = 0;
  	    }
  	    if (multi_attr)
  	    {
  		ScreenAttrs[off] = multi_attr;
  		multi_attr = 0;
  	    }
  	    else
  		ScreenAttrs[off] = char_attr;
  
  	    if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
  	    {
  		// Need to fill two screen columns.
  		++off;
  		++col;
  		if (enc_utf8)
  		    // UTF-8: Put a 0 in the second screen char.
  		    ScreenLines[off] = 0;
  		else
  		    // DBCS: Put second byte in the second screen char.
  		    ScreenLines[off] = mb_c & 0xff;
  		if (draw_state > WL_NR
  #ifdef FEAT_DIFF
  			&& filler_todo <= 0
  #endif
  			)
  		    ++vcol;
  		// When "tocol" is halfway a character, set it to the end of
  		// the character, otherwise highlighting won't stop.
  		if (tocol == vcol)
  		    ++tocol;
  #ifdef FEAT_RIGHTLEFT
  		if (wp->w_p_rl)
  		{
  		    // now it's time to backup one cell
  		    --off;
  		    --col;
  		}
  #endif
  	    }
  #ifdef FEAT_RIGHTLEFT
  	    if (wp->w_p_rl)
  	    {
  		--off;
  		--col;
  	    }
  	    else
  #endif
  	    {
  		++off;
  		++col;
  	    }
  	}
  #ifdef FEAT_CONCEAL
  	else if (wp->w_p_cole > 0 && is_concealing)
  	{
  	    --n_skip;
  	    ++vcol_off;
  	    if (n_extra > 0)
  		vcol_off += n_extra;
  	    if (wp->w_p_wrap)
  	    {
  		// Special voodoo required if 'wrap' is on.
  		//
  		// Advance the column indicator to force the line
  		// drawing to wrap early. This will make the line
  		// take up the same screen space when parts are concealed,
  		// so that cursor line computations aren't messed up.
  		//
  		// To avoid the fictitious advance of 'col' causing
  		// trailing junk to be written out of the screen line
  		// we are building, 'boguscols' keeps track of the number
  		// of bad columns we have advanced.
  		if (n_extra > 0)
  		{
  		    vcol += n_extra;
  # ifdef FEAT_RIGHTLEFT
  		    if (wp->w_p_rl)
  		    {
  			col -= n_extra;
  			boguscols -= n_extra;
  		    }
  		    else
  # endif
  		    {
  			col += n_extra;
  			boguscols += n_extra;
  		    }
  		    n_extra = 0;
  		    n_attr = 0;
  		}
  
  
  		if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
  		{
  		    // Need to fill two screen columns.
  # ifdef FEAT_RIGHTLEFT
  		    if (wp->w_p_rl)
  		    {
  			--boguscols;
  			--col;
  		    }
  		    else
  # endif
  		    {
  			++boguscols;
  			++col;
  		    }
  		}
  
  # ifdef FEAT_RIGHTLEFT
  		if (wp->w_p_rl)
  		{
  		    --boguscols;
  		    --col;
  		}
  		else
  # endif
  		{
  		    ++boguscols;
  		    ++col;
  		}
  	    }
  	    else
  	    {
  		if (n_extra > 0)
  		{
  		    vcol += n_extra;
  		    n_extra = 0;
  		    n_attr = 0;
  		}
  	    }
  
  	}
  #endif // FEAT_CONCEAL
  	else
  	    --n_skip;
  
  	// Only advance the "vcol" when after the 'number' or 'relativenumber'
  	// column.
  	if (draw_state > WL_NR
  #ifdef FEAT_DIFF
  		&& filler_todo <= 0
  #endif
  		)
  	    ++vcol;
  
  #ifdef FEAT_SYN_HL
  	if (vcol_save_attr >= 0)
  	    char_attr = vcol_save_attr;
  #endif
  
  	// restore attributes after "predeces" in 'listchars'
  	if (draw_state > WL_NR && n_attr3 > 0 && --n_attr3 == 0)
  	    char_attr = saved_attr3;
  
  	// restore attributes after last 'listchars' or 'number' char
  	if (n_attr > 0 && draw_state == WL_LINE && --n_attr == 0)
  	    char_attr = saved_attr2;
  
  	// At end of screen line and there is more to come: Display the line
  	// so far.  If there is no more to display it is caught above.
  	if ((
  #ifdef FEAT_RIGHTLEFT
  	    wp->w_p_rl ? (col < 0) :
  #endif
  				    (col >= wp->w_width))
  		&& (draw_state != WL_LINE
  		    || *ptr != NUL
  #ifdef FEAT_DIFF
  		    || filler_todo > 0
  #endif
  		    || (wp->w_p_list && wp->w_lcs_chars.eol != NUL
  						&& p_extra != at_end_str)
  		    || (n_extra != 0 && (c_extra != NUL || *p_extra != NUL)))
  		)
  	{
  #ifdef FEAT_CONCEAL
  	    screen_line(screen_row, wp->w_wincol, col - boguscols,
  					  wp->w_width, screen_line_flags);
  	    boguscols = 0;
  #else
  	    screen_line(screen_row, wp->w_wincol, col,
  					  wp->w_width, screen_line_flags);
  #endif
  	    ++row;
  	    ++screen_row;
  
  	    // When not wrapping and finished diff lines, or when displayed
  	    // '$' and highlighting until last column, break here.
  	    if ((!wp->w_p_wrap
  #ifdef FEAT_DIFF
  		    && filler_todo <= 0
  #endif
  		    ) || lcs_eol_one == -1)
  		break;
  
  	    // When the window is too narrow draw all "@" lines.
  	    if (draw_state != WL_LINE
  #ifdef FEAT_DIFF
  		    && filler_todo <= 0
  #endif
  		    )
  	    {
  		win_draw_end(wp, '@', ' ', TRUE, row, wp->w_height, HLF_AT);
  		draw_vsep_win(wp, row);
  		row = endrow;
  	    }
  
  	    // When line got too long for screen break here.
  	    if (row == endrow)
  	    {
  		++row;
  		break;
  	    }
  
  	    if (screen_cur_row == screen_row - 1
  #ifdef FEAT_DIFF
  		     && filler_todo <= 0
  #endif
  		     && wp->w_width == Columns)
  	    {
  		// Remember that the line wraps, used for modeless copy.
  		LineWraps[screen_row - 1] = TRUE;
  
  		// Special trick to make copy/paste of wrapped lines work with
  		// xterm/screen: write an extra character beyond the end of
  		// the line. This will work with all terminal types
  		// (regardless of the xn,am settings).
  		// Only do this on a fast tty.
  		// Only do this if the cursor is on the current line
  		// (something has been written in it).
  		// Don't do this for the GUI.
  		// Don't do this for double-width characters.
  		// Don't do this for a window not at the right screen border.
  		if (p_tf
  #ifdef FEAT_GUI
  			 && !gui.in_use
  #endif
  			 && !(has_mbyte
  			     && ((*mb_off2cells)(LineOffset[screen_row],
  				     LineOffset[screen_row] + screen_Columns)
  									  == 2
  				 || (*mb_off2cells)(LineOffset[screen_row - 1]
  							+ (int)Columns - 2,
  				     LineOffset[screen_row] + screen_Columns)
  									== 2)))
  		{
  		    // First make sure we are at the end of the screen line,
  		    // then output the same character again to let the
  		    // terminal know about the wrap.  If the terminal doesn't
  		    // auto-wrap, we overwrite the character.
  		    if (screen_cur_col != wp->w_width)
  			screen_char(LineOffset[screen_row - 1]
  						      + (unsigned)Columns - 1,
  					  screen_row - 1, (int)(Columns - 1));
  
  		    // When there is a multi-byte character, just output a
  		    // space to keep it simple.
  		    if (has_mbyte && MB_BYTE2LEN(ScreenLines[LineOffset[
  					screen_row - 1] + (Columns - 1)]) > 1)
  			out_char(' ');
  		    else
  			out_char(ScreenLines[LineOffset[screen_row - 1]
  							    + (Columns - 1)]);
  		    // force a redraw of the first char on the next line
  		    ScreenAttrs[LineOffset[screen_row]] = (sattr_T)-1;
  		    screen_start();	// don't know where cursor is now
  		}
  	    }
  
  	    col = 0;
  	    off = (unsigned)(current_ScreenLine - ScreenLines);
  #ifdef FEAT_RIGHTLEFT
  	    if (wp->w_p_rl)
  	    {
  		col = wp->w_width - 1;	// col is not used if breaking!
  		off += col;
  	    }
  #endif
  
  	    // reset the drawing state for the start of a wrapped line
  	    draw_state = WL_START;
  	    saved_n_extra = n_extra;
  	    saved_p_extra = p_extra;
  	    saved_c_extra = c_extra;
  	    saved_c_final = c_final;
  #ifdef FEAT_SYN_HL
  	    if (!(cul_screenline
  # ifdef FEAT_DIFF
  			&& diff_hlf == (hlf_T)0
  # endif
  		    ))
  		saved_char_attr = char_attr;
  	    else
  #endif
  		saved_char_attr = 0;
  	    n_extra = 0;
  	    lcs_prec_todo = wp->w_lcs_chars.prec;
  #ifdef FEAT_LINEBREAK
  # ifdef FEAT_DIFF
  	    if (filler_todo <= 0)
  # endif
  		need_showbreak = TRUE;
  #endif
  #ifdef FEAT_DIFF
  	    --filler_todo;
  	    // When the filler lines are actually below the last line of the
  	    // file, don't draw the line itself, break here.
  	    if (filler_todo == 0 && wp->w_botfill)
  		break;
  #endif
  	}
  
      }	// for every character in the line
  
  #ifdef FEAT_SPELL
      // After an empty line check first word for capital.
      if (*skipwhite(line) == NUL)
      {
  	capcol_lnum = lnum + 1;
  	cap_col = 0;
      }
  #endif
  #ifdef FEAT_PROP_POPUP
      vim_free(text_props);
      vim_free(text_prop_idxs);
  #endif
  
      vim_free(p_extra_free);
      return row;
  }
  