patch 8.2.2518: 'listchars' should be window-localv8.2.2518

Problem:    'listchars' should be window-local.
Solution:   Make 'listchars' global-local. (Yegappan Lakshmanan, Marco Hinz,
            closes #5206, closes #7850)

20 files changed, 302 insertions, 112 deletions

diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 08d205ceff..d5264ecff9 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -4854,7 +4854,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 
 						*'listchars'* *'lcs'*
 'listchars' 'lcs'	string	(default "eol:$")
-			global
+			global or local to window |global-local|
 	Strings to use in 'list' mode and for the |:list| command.  It is a
 	comma separated list of string settings.
 							*lcs-eol*
diff --git a/src/buffer.c b/src/buffer.c
index ca1fd36efe..4e4f87c926 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4549,7 +4549,7 @@ build_stl_str_hl(
 	case STL_VIRTCOL_ALT:
 	    // In list mode virtcol needs to be recomputed
 	    virtcol = wp->w_virtcol;
-	    if (wp->w_p_list && lcs_tab1 == NUL)
+	    if (wp->w_p_list && wp->w_lcs_chars.tab1 == NUL)
 	    {
 		wp->w_p_list = FALSE;
 		getvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL);
diff --git a/src/charset.c b/src/charset.c
index 4289360e47..d06a273643 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -753,7 +753,7 @@ vim_strnsize(char_u *s, int len)
 
 #ifdef FEAT_VARTABS
 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
-    if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \
+    if (*(p) == TAB && (!(wp)->w_p_list || wp->w_lcs_chars.tab1)) \
     { \
 	return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \
     } \
@@ -761,7 +761,7 @@ vim_strnsize(char_u *s, int len)
 	return ptr2cells(p);
 #else
 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
-    if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \
+    if (*(p) == TAB && (!(wp)->w_p_list || wp->w_lcs_chars.tab1)) \
     { \
 	int ts; \
 	ts = (buf)->b_p_ts; \
@@ -1153,7 +1153,7 @@ win_nolbr_chartabsize(
 {
     int		n;
 
-    if (*s == TAB && (!wp->w_p_list || lcs_tab1))
+    if (*s == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1))
     {
 # ifdef FEAT_VARTABS
 	return tabstop_padding(col, wp->w_buffer->b_p_ts,
@@ -1248,7 +1248,7 @@ getvcol(
      * use a simple loop.
      * Also use this when 'list' is set but tabs take their normal size.
      */
-    if ((!wp->w_p_list || lcs_tab1 != NUL)
+    if ((!wp->w_p_list || wp->w_lcs_chars.tab1 != NUL)
 #ifdef FEAT_LINEBREAK
 	    && !wp->w_p_lbr && *get_showbreak_value(wp) == NUL && !wp->w_p_bri
 #endif
diff --git a/src/drawline.c b/src/drawline.c
index 077e7fcde3..2f865127f7 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -248,9 +248,9 @@ win_line(
     int		c_final = NUL;		// final char, mandatory if set
     int		extra_attr = 0;		// attributes when n_extra != 0
     static char_u *at_end_str = (char_u *)""; // used for p_extra when
-					   // displaying lcs_eol at end-of-line
-    int		lcs_eol_one = lcs_eol;	// lcs_eol until it's been used
-    int		lcs_prec_todo = lcs_prec;   // lcs_prec until it's been used
+					// 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;
@@ -735,11 +735,14 @@ win_line(
 
     if (wp->w_p_list)
     {
-	if (lcs_space || lcs_trail || lcs_lead || lcs_nbsp)
+	if (wp->w_lcs_chars.space
+		|| wp->w_lcs_chars.trail
+		|| wp->w_lcs_chars.lead
+		|| wp->w_lcs_chars.nbsp)
 	    extra_check = TRUE;
 
 	// find start of trailing whitespace
-	if (lcs_trail)
+	if (wp->w_lcs_chars.trail)
 	{
 	    trailcol = (colnr_T)STRLEN(ptr);
 	    while (trailcol > (colnr_T)0 && VIM_ISWHITE(ptr[trailcol - 1]))
@@ -747,7 +750,7 @@ win_line(
 	    trailcol += (colnr_T) (ptr - line);
 	}
 	// find end of leading whitespace
-	if (lcs_lead)
+	if (wp->w_lcs_chars.lead)
 	{
 	    leadcol = 0;
 	    while (VIM_ISWHITE(ptr[leadcol]))
@@ -2000,22 +2003,23 @@ win_line(
 		}
 #endif
 
-		// 'list': Change char 160 to lcs_nbsp and space to lcs_space.
-		// But not when the character is followed by a composing
-		// character (use mb_l to check that).
+		// '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))))
-			     && lcs_nbsp)
+			     && wp->w_lcs_chars.nbsp)
 			    || (c == ' '
 				&& mb_l == 1
-				&& lcs_space
+				&& wp->w_lcs_chars.space
 				&& ptr - line >= leadcol
 				&& ptr - line <= trailcol)))
 		{
-		    c = (c == ' ') ? lcs_space : lcs_nbsp;
+		    c = (c == ' ') ? wp->w_lcs_chars.space :
+							wp->w_lcs_chars.nbsp;
 		    if (area_attr == 0 && search_attr == 0)
 		    {
 			n_attr = 1;
@@ -2036,7 +2040,8 @@ win_line(
 		if ((trailcol != MAXCOL && ptr > line + trailcol && c == ' ')
 			|| (leadcol != 0 && ptr < line + leadcol && c == ' '))
 		{
-		    c = (ptr > line + trailcol) ? lcs_trail : lcs_lead;
+		    c = (ptr > line + trailcol) ? wp->w_lcs_chars.trail
+							: wp->w_lcs_chars.lead;
 		    if (!attr_pri)
 		    {
 			n_attr = 1;
@@ -2061,7 +2066,7 @@ win_line(
 		// 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 || lcs_tab1))
+		if (c == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1))
 		{
 		    int tab_len = 0;
 		    long vcol_adjusted = vcol; // removed showbreak length
@@ -2101,18 +2106,19 @@ win_line(
 			    // there are characters to conceal
 			    tab_len += vcol_off;
 			// boguscols before FIX_FOR_BOGUSCOLS macro from above
-			if (wp->w_p_list && lcs_tab1 && old_boguscols > 0
-							 && n_extra > tab_len)
+			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(lcs_tab2));
+			len = (tab_len * mb_char2len(wp->w_lcs_chars.tab2));
 			if (n_extra > 0)
 			    len += n_extra - tab_len;
-			c = lcs_tab1;
+			c = wp->w_lcs_chars.tab1;
 			p = alloc(len + 1);
 			vim_memset(p, ' ', len);
 			p[len] = NUL;
@@ -2120,7 +2126,7 @@ win_line(
 			p_extra_free = p;
 			for (i = 0; i < tab_len; i++)
 			{
-			    int lcs = lcs_tab2;
+			    int lcs = wp->w_lcs_chars.tab2;
 
 			    if (*p == NUL)
 			    {
@@ -2128,10 +2134,10 @@ win_line(
 				break;
 			    }
 
-			    // if lcs_tab3 is given, need to change the char
+			    // if tab3 is given, need to change the char
 			    // for tab
-			    if (lcs_tab3 && i == tab_len - 1)
-				lcs = lcs_tab3;
+			    if (wp->w_lcs_chars.tab3 && i == tab_len - 1)
+				lcs = wp->w_lcs_chars.tab3;
 			    mb_char2bytes(lcs, p);
 			    p += mb_char2len(lcs);
 			    n_extra += mb_char2len(lcs)
@@ -2162,21 +2168,23 @@ win_line(
 			// correctly set further below (effectively reverts the
 			// FIX_FOR_BOGSUCOLS macro
 			if (n_extra == tab_len + vc_saved && wp->w_p_list
-								  && lcs_tab1)
+						&& 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 && lcs_tab3) ? lcs_tab3 : lcs_tab1;
+			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 = lcs_tab2;
-			c_final = lcs_tab3;
+			    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
@@ -2241,8 +2249,8 @@ win_line(
 			    c_final = NUL;
 			}
 		    }
-		    if (wp->w_p_list && lcs_eol > 0)
-			c = lcs_eol;
+		    if (wp->w_p_list && wp->w_lcs_chars.eol > 0)
+			c = wp->w_lcs_chars.eol;
 		    else
 			c = ' ';
 		    lcs_eol_one = -1;
@@ -2344,7 +2352,8 @@ win_line(
 		    // 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 && lcs_eol > 0)))
+					    || (wp->w_p_list &&
+						wp->w_lcs_chars.eol > 0)))
 			char_attr = line_attr;
 # ifdef FEAT_DIFF
 		    if (diff_hlf == HLF_TXD)
@@ -2404,8 +2413,8 @@ win_line(
 			c = match_conc;
 		    else if (syn_get_sub_char() != NUL)
 			c = syn_get_sub_char();
-		    else if (lcs_conceal != NUL)
-			c = lcs_conceal;
+		    else if (wp->w_lcs_chars.conceal != NUL)
+			c = wp->w_lcs_chars.conceal;
 		    else
 			c = ' ';
 
@@ -2548,7 +2557,7 @@ win_line(
 		&& draw_state > WL_NR
 		&& c != NUL)
 	{
-	    c = lcs_prec;
+	    c = wp->w_lcs_chars.prec;
 	    lcs_prec_todo = NUL;
 	    if (has_mbyte && (*mb_char2cells)(mb_c) > 1)
 	    {
@@ -2594,7 +2603,7 @@ win_line(
 	    // 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 (lcs_eol == lcs_eol_one
+	    if (wp->w_lcs_chars.eol == lcs_eol_one
 		    && ((area_attr != 0 && vcol == fromcol
 			    && (VIsual_mode != Ctrl_V
 				|| lnum == VIsual.lnum
@@ -2764,7 +2773,7 @@ win_line(
 
 	// Show "extends" character from 'listchars' if beyond the line end and
 	// 'list' is set.
-	if (lcs_ext != NUL
+	if (wp->w_lcs_chars.ext != NUL
 		&& wp->w_p_list
 		&& !wp->w_p_wrap
 #ifdef FEAT_DIFF
@@ -2779,7 +2788,7 @@ win_line(
 		    || (wp->w_p_list && lcs_eol_one > 0)
 		    || (n_extra && (c_extra != NUL || *p_extra != NUL))))
 	{
-	    c = lcs_ext;
+	    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)
@@ -3036,7 +3045,8 @@ win_line(
 #ifdef FEAT_DIFF
 		    || filler_todo > 0
 #endif
-		    || (wp->w_p_list && lcs_eol != NUL && p_extra != at_end_str)
+		    || (wp->w_p_list && wp->w_lcs_chars.eol != NUL
+						&& p_extra != at_end_str)
 		    || (n_extra != 0 && (c_extra != NUL || *p_extra != NUL)))
 		)
 	{
@@ -3161,7 +3171,7 @@ win_line(
 #endif
 		saved_char_attr = 0;
 	    n_extra = 0;
-	    lcs_prec_todo = lcs_prec;
+	    lcs_prec_todo = wp->w_lcs_chars.prec;
 #ifdef FEAT_LINEBREAK
 # ifdef FEAT_DIFF
 	    if (filler_todo <= 0)
diff --git a/src/drawscreen.c b/src/drawscreen.c
index 694b9dac31..3fe1c0c797 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -696,7 +696,7 @@ win_redr_ruler(win_T *wp, int always, int ignore_pum)
 
 	// In list mode virtcol needs to be recomputed
 	virtcol = wp->w_virtcol;
-	if (wp->w_p_list && lcs_tab1 == NUL)
+	if (wp->w_p_list && wp->w_lcs_chars.tab1 == NUL)
 	{
 	    wp->w_p_list = FALSE;
 	    getvvcol(wp, &wp->w_cursor, NULL, &virtcol, NULL);
diff --git a/src/evalfunc.c b/src/evalfunc.c
index b3da9f6cf6..bee76c6eaf 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -9736,7 +9736,8 @@ f_synconcealed(typval_T *argvars UNUSED, typval_T *rettv)
 	    {
 		cchar = syn_get_sub_char();
 		if (cchar == NUL && curwin->w_p_cole == 1)
-		    cchar = (lcs_conceal == NUL) ? ' ' : lcs_conceal;
+		    cchar = (curwin->w_lcs_chars.conceal == NUL) ? ' '
+					: curwin->w_lcs_chars.conceal;
 		if (cchar != NUL)
 		{
 		    if (has_mbyte)
diff --git a/src/globals.h b/src/globals.h
index 3ad4227ebc..bc4a3d5d53 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1342,21 +1342,6 @@ EXTERN char_u	*homedir INIT(= NULL);
 // directory is not a local directory, globaldir is NULL.
 EXTERN char_u	*globaldir INIT(= NULL);
 
-// Characters from 'listchars' option
-EXTERN int	lcs_eol INIT(= '$');
-EXTERN int	lcs_ext INIT(= NUL);
-EXTERN int	lcs_prec INIT(= NUL);
-EXTERN int	lcs_nbsp INIT(= NUL);
-EXTERN int	lcs_space INIT(= NUL);
-EXTERN int	lcs_tab1 INIT(= NUL);
-EXTERN int	lcs_tab2 INIT(= NUL);
-EXTERN int	lcs_tab3 INIT(= NUL);
-EXTERN int	lcs_trail INIT(= NUL);
-EXTERN int	lcs_lead INIT(= NUL);
-#ifdef FEAT_CONCEAL
-EXTERN int	lcs_conceal INIT(= ' ');
-#endif
-
 // Characters from 'fillchars' option
 EXTERN int	fill_stl INIT(= ' ');
 EXTERN int	fill_stlnc INIT(= ' ');
diff --git a/src/indent.c b/src/indent.c
index 6ac6182df4..e1c6f522a9 100644
--- a/src/indent.c
+++ b/src/indent.c
@@ -432,7 +432,8 @@ get_indent_str(
     {
 	if (*ptr == TAB)
 	{
-	    if (!list || lcs_tab1)    // count a tab for what it is worth
+	    if (!list || curwin->w_lcs_chars.tab1)
+		// count a tab for what it is worth
 		count += ts - (count % ts);
 	    else
 		// In list mode, when tab is not set, count screen char width
@@ -462,7 +463,7 @@ get_indent_str_vtab(char_u *ptr, int ts, int *vts, int list)
     {
 	if (*ptr == TAB)    // count a tab for what it is worth
 	{
-	    if (!list || lcs_tab1)
+	    if (!list || curwin->w_lcs_chars.tab1)
 		count += tabstop_padding(count, ts, vts);
 	    else
 		// In list mode, when tab is not set, count screen char width
diff --git a/src/message.c b/src/message.c
index 012811f9cf..07c3943ab4 100644
--- a/src/message.c
+++ b/src/message.c
@@ -1848,14 +1848,14 @@ msg_prt_line(char_u *s, int list)
     if (list)
     {
 	// find start of trailing whitespace
-	if (lcs_trail)
+	if (curwin->w_lcs_chars.trail)
 	{
 	    trail = s + STRLEN(s);
 	    while (trail > s && VIM_ISWHITE(trail[-1]))
 		--trail;
 	}
 	// find end of leading whitespace
-	if (lcs_lead)
+	if (curwin->w_lcs_chars.lead)
 	{
 	    lead = s;
 	    while (VIM_ISWHITE(lead[0]))
@@ -1868,7 +1868,7 @@ msg_prt_line(char_u *s, int list)
 
     // output a space for an empty line, otherwise the line will be
     // overwritten
-    if (*s == NUL && !(list && lcs_eol != NUL))
+    if (*s == NUL && !(list && curwin->w_lcs_chars.eol != NUL))
 	msg_putchar(' ');
 
     while (!got_int)
@@ -1890,11 +1890,11 @@ msg_prt_line(char_u *s, int list)
 	    {
 		STRCPY(buf, "?");
 	    }
-	    else if (lcs_nbsp != NUL && list
+	    else if (curwin->w_lcs_chars.nbsp != NUL && list
 		    && (mb_ptr2char(s) == 160
 			|| mb_ptr2char(s) == 0x202f))
 	    {
-		mb_char2bytes(lcs_nbsp, buf);
+		mb_char2bytes(curwin->w_lcs_chars.nbsp, buf);
 		buf[(*mb_ptr2len)(buf)] = NUL;
 	    }
 	    else
@@ -1910,7 +1910,7 @@ msg_prt_line(char_u *s, int list)
 	{
 	    attr = 0;
 	    c = *s++;
-	    if (c == TAB && (!list || lcs_tab1))
+	    if (c == TAB && (!list || curwin->w_lcs_chars.tab1))
 	    {
 		// tab amount depends on current column
 #ifdef FEAT_VARTABS
@@ -1927,24 +1927,26 @@ msg_prt_line(char_u *s, int list)
 		}
 		else
 		{
-		    c = (n_extra == 0 && lcs_tab3) ? lcs_tab3 : lcs_tab1;
-		    c_extra = lcs_tab2;
-		    c_final = lcs_tab3;
+		    c = (n_extra == 0 && curwin->w_lcs_chars.tab3)
+						? curwin->w_lcs_chars.tab3
+						: curwin->w_lcs_chars.tab1;
+		    c_extra = curwin->w_lcs_chars.tab2;
+		    c_final = curwin->w_lcs_chars.tab3;
 		    attr = HL_ATTR(HLF_8);
 		}
 	    }
-	    else if (c == 160 && list && lcs_nbsp != NUL)
+	    else if (c == 160 && list && curwin->w_lcs_chars.nbsp != NUL)
 	    {
-		c = lcs_nbsp;
+		c = curwin->w_lcs_chars.nbsp;
 		attr = HL_ATTR(HLF_8);
 	    }
-	    else if (c == NUL && list && lcs_eol != NUL)
+	    else if (c == NUL && list && curwin->w_lcs_chars.eol != NUL)
 	    {
 		p_extra = (char_u *)"";
 		c_extra = NUL;
 		c_final = NUL;
 		n_extra = 1;
-		c = lcs_eol;
+		c = curwin->w_lcs_chars.eol;
 		attr = HL_ATTR(HLF_AT);
 		--s;
 	    }
@@ -1961,17 +1963,17 @@ msg_prt_line(char_u *s, int list)
 	    }
 	    else if (c == ' ' && lead != NULL && s <= lead)
 	    {
-		c = lcs_lead;
+		c = curwin->w_lcs_chars.lead;
 		attr = HL_ATTR(HLF_8);
 	    }
 	    else if (c == ' ' && trail != NULL && s > trail)
 	    {
-		c = lcs_trail;
+		c = curwin->w_lcs_chars.trail;
 		attr = HL_ATTR(HLF_8);
 	    }
-	    else if (c == ' ' && list && lcs_space != NUL)
+	    else if (c == ' ' && list && curwin->w_lcs_chars.space != NUL)
 	    {
-		c = lcs_space;
+		c = curwin->w_lcs_chars.space;
 		attr = HL_ATTR(HLF_8);
 	    }
 	}
diff --git a/src/misc1.c b/src/misc1.c
index 010622ee5c..a72dc9bf21 100644
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -403,7 +403,7 @@ plines_win_nofold(win_T *wp, linenr_T lnum)
      * If list mode is on, then the '$' at the end of the line may take up one
      * extra column.
      */
-    if (wp->w_p_list && lcs_eol != NUL)
+    if (wp->w_p_list && wp->w_lcs_chars.eol != NUL)
 	col += 1;
 
     /*
@@ -460,7 +460,8 @@ plines_win_col(win_T *wp, linenr_T lnum, long column)
      * from one screen line to the next (when 'columns' is not a multiple of
      * 'ts') -- webb.
      */
-    if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || lcs_tab1))
+    if (*s == TAB && (State & NORMAL) && (!wp->w_p_list ||
+							wp->w_lcs_chars.tab1))
 	col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL) - 1;
 
     /*
diff --git a/src/option.c b/src/option.c
index bba467e5e9..9db9c2633f 100644
--- a/src/option.c
+++ b/src/option.c
@@ -2337,9 +2337,11 @@ didset_options2(void)
     // Parse default for 'wildmode'
     check_opt_wim();
 
-    (void)set_chars_option(&p_lcs);
+    // Parse default for 'listchars'.
+    (void)set_chars_option(curwin, &curwin->w_p_lcs);
+
     // Parse default for 'fillchars'.
-    (void)set_chars_option(&p_fcs);
+    (void)set_chars_option(curwin, &p_fcs);
 
 #ifdef FEAT_CLIPBOARD
     // Parse default for 'clipboard'
@@ -5063,6 +5065,11 @@ unset_global_local_option(char_u *name, void *from)
 	case PV_MENC:
 	    clear_string_option(&buf->b_p_menc);
 	    break;
+	case PV_LCS:
+	    clear_string_option(&((win_T *)from)->w_p_lcs);
+	    set_chars_option((win_T *)from, &((win_T *)from)->w_p_lcs);
+	    redraw_later(NOT_VALID);
+	    break;
     }
 }
 #endif
@@ -5121,6 +5128,8 @@ get_varp_scope(struct vimoption *p, int opt_flags)
 #endif
 	    case PV_BKC:  return (char_u *)&(curbuf->b_p_bkc);
 	    case PV_MENC: return (char_u *)&(curbuf->b_p_menc);
+	    case PV_LCS: return (char_u *)&(curwin->w_p_lcs);
+
 	}
 	return NULL; // "cannot happen"
     }
@@ -5218,6 +5227,8 @@ get_varp(struct vimoption *p)
 	case PV_ARAB:	return (char_u *)&(curwin->w_p_arab);
 #endif
 	case PV_LIST:	return (char_u *)&(curwin->w_p_list);
+	case PV_LCS:	return *curwin->w_p_lcs != NUL
+				    ? (char_u *)&(curwin->w_p_lcs) : p->var;
 #ifdef FEAT_SPELL
 	case PV_SPELL:	return (char_u *)&(curwin->w_p_spell);
 #endif
@@ -5445,6 +5456,7 @@ after_copy_winopt(win_T *wp UNUSED)
     fill_culopt_flags(NULL, wp);
     check_colorcolumn(wp);
 #endif
+    set_chars_option(wp, &wp->w_p_lcs);
 }
 
 /*
@@ -5460,6 +5472,7 @@ copy_winopt(winopt_T *from, winopt_T *to)
     to->wo_arab = from->wo_arab;
 #endif
     to->wo_list = from->wo_list;
+    to->wo_lcs = vim_strsave(from->wo_lcs);
     to->wo_nu = from->wo_nu;
     to->wo_rnu = from->wo_rnu;
 #ifdef FEAT_LINEBREAK
@@ -5594,6 +5607,7 @@ check_winopt(winopt_T *wop UNUSED)
     check_string_option(&wop->wo_briopt);
 #endif
     check_string_option(&wop->wo_wcr);
+    check_string_option(&wop->wo_lcs);
 }
 
 /*
@@ -5639,6 +5653,7 @@ clear_winopt(winopt_T *wop UNUSED)
     clear_string_option(&wop->wo_twk);
     clear_string_option(&wop->wo_tws);
 #endif
+    clear_string_option(&wop->wo_lcs);
 }
 
 #ifdef FEAT_EVAL
diff --git a/src/option.h b/src/option.h
index 4bc189ca73..349268c3d4 100644
--- a/src/option.h
+++ b/src/option.h
@@ -1231,6 +1231,7 @@ enum
 enum
 {
     WV_LIST = 0
+    , WV_LCS
 #ifdef FEAT_ARABIC
     , WV_ARAB
 #endif
diff --git a/src/optiondefs.h b/src/optiondefs.h
index 3e76c8ace7..dcd195d7ef 100644
--- a/src/optiondefs.h
+++ b/src/optiondefs.h
@@ -185,6 +185,7 @@
 #ifdef FEAT_LINEBREAK
 # define PV_LBR		OPT_WIN(WV_LBR)
 #endif
+#define PV_LCS		OPT_BOTH(OPT_WIN(WV_LCS))
 #define PV_NU		OPT_WIN(WV_NU)
 #define PV_RNU		OPT_WIN(WV_RNU)
 #ifdef FEAT_LINEBREAK
@@ -1598,7 +1599,7 @@ static struct vimoption options[] =
 			    (char_u *)VAR_WIN, PV_LIST,
 			    {(char_u *)FALSE, (char_u *)0L} SCTX_INIT},
     {"listchars",   "lcs",  P_STRING|P_VI_DEF|P_RALL|P_ONECOMMA|P_NODUP,
-			    (char_u *)&p_lcs, PV_NONE,
+			    (char_u *)&p_lcs, PV_LCS,
 			    {(char_u *)"eol:$", (char_u *)0L} SCTX_INIT},
     {"loadplugins", "lpl",  P_BOOL|P_VI_DEF,
 			    (char_u *)&p_lpl, PV_NONE,
diff --git a/src/optionstr.c b/src/optionstr.c
index c8a5b0c658..a1cbe262f4 100644
--- a/src/optionstr.c
+++ b/src/optionstr.c
@@ -862,10 +862,24 @@ did_set_string_option(
     {
 	if (check_opt_strings(p_ambw, p_ambw_values, FALSE) != OK)
 	    errmsg = e_invarg;
-	else if (set_chars_option(&p_lcs) != NULL)
-	    errmsg = _("E834: Conflicts with value of 'listchars'");
-	else if (set_chars_option(&p_fcs) != NULL)
+	else if (set_chars_option(curwin, &p_fcs) != NULL)
 	    errmsg = _("E835: Conflicts with value of 'fillchars'");
+	else
+	{
+	    tabpage_T	*tp;
+	    win_T	*wp;
+
+	    FOR_ALL_TAB_WINDOWS(tp, wp)
+	    {
+		if (set_chars_option(wp, &wp->w_p_lcs) != NULL)
+		{
+		    errmsg = _("E834: Conflicts with value of 'listchars'");
+		    goto ambw_end;
+		}
+	    }
+	}
+ambw_end:
+	{}
     }
 
     // 'background'
@@ -1292,16 +1306,37 @@ did_set_string_option(
 	}
     }
 
-    // 'listchars'
+    // global 'listchars'
     else if (varp == &p_lcs)
     {
-	errmsg = set_chars_option(varp);
+	errmsg = set_chars_option(curwin, varp);
+	if (errmsg == NULL)
+	{
+	    tabpage_T	*tp;
+	    win_T		*wp;
+
+	    // The current window is set to use the global 'listchars' value.
+	    // So clear the window-local value.
+	    if (!(opt_flags & OPT_GLOBAL))
+		clear_string_option(&curwin->w_p_lcs);
+	    FOR_ALL_TAB_WINDOWS(tp, wp)
+	    {
+		errmsg = set_chars_option(wp, &wp->w_p_lcs);
+		if (errmsg)
+		    break;
+	    }
+	    redraw_all_later(NOT_VALID);
+	}
     }
 
+    // local 'listchars'
+    else if (varp == &curwin->w_p_lcs)
+	errmsg = set_chars_option(curwin, varp);
+
     // 'fillchars'
     else if (varp == &p_fcs)
     {
-	errmsg = set_chars_option(varp);
+	errmsg = set_chars_option(curwin, varp);
     }
 
 #ifdef FEAT_CMDWIN
diff --git a/src/proto/screen.pro b/src/proto/screen.pro
index 3f475ec12c..1ab40df0c9 100644
--- a/src/proto/screen.pro
+++ b/src/proto/screen.pro
@@ -55,5 +55,5 @@ void comp_col(void);
 int number_width(win_T *wp);
 int screen_screencol(void);
 int screen_screenrow(void);
-char *set_chars_option(char_u **varp);
+char *set_chars_option(win_T *wp, char_u **varp);
 /* vim: set ft=c : */
diff --git a/src/screen.c b/src/screen.c
index b3944a71da..176f98d571 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -4745,10 +4745,11 @@ screen_screenrow(void)
 
 /*
  * Handle setting 'listchars' or 'fillchars'.
+ * Assume monocell characters.
  * Returns error message, NULL if it's OK.
  */
     char *
-set_chars_option(char_u **varp)
+set_chars_option(win_T *wp, char_u **varp)
 {
     int		round, i, len, entries;
     char_u	*p, *s;
@@ -4767,28 +4768,30 @@ set_chars_option(char_u **varp)
 	{&fill_diff,	"diff"},
 	{&fill_eob,	"eob"},
     };
-    static struct charstab lcstab[] =
+    struct charstab lcstab[] =
     {
-	{&lcs_eol,	"eol"},
-	{&lcs_ext,	"extends"},
-	{&lcs_nbsp,	"nbsp"},
-	{&lcs_prec,	"precedes"},
-	{&lcs_space,	"space"},
-	{&lcs_tab2,	"tab"},
-	{&lcs_trail,	"trail"},
-	{&lcs_lead,	"lead"},
+	{&wp->w_lcs_chars.eol,	"eol"},
+	{&wp->w_lcs_chars.ext,	"extends"},
+	{&wp->w_lcs_chars.nbsp,	"nbsp"},
+	{&wp->w_lcs_chars.prec,	"precedes"},
+	{&wp->w_lcs_chars.space,"space"},
+	{&wp->w_lcs_chars.tab2,	"tab"},
+	{&wp->w_lcs_chars.trail,"trail"},
+	{&wp->w_lcs_chars.lead,	"lead"},
 #ifdef FEAT_CONCEAL
-	{&lcs_conceal,	"conceal"},
+	{&wp->w_lcs_chars.conceal,	"conceal"},
 #else
 	{NULL,		"conceal"},
 #endif
     };
     struct charstab *tab;
 
-    if (varp == &p_lcs)
+    if (varp == &p_lcs || varp == &wp->w_p_lcs)
     {
 	tab = lcstab;
 	entries = sizeof(lcstab) / sizeof(struct charstab);
+	if (varp == &wp->w_p_lcs && wp->w_p_lcs[0] == NUL)
+	    varp = &p_lcs;
     }
     else
     {
@@ -4805,12 +4808,13 @@ set_chars_option(char_u **varp)
 	    // 'fillchars', NUL for 'listchars'
 	    for (i = 0; i < entries; ++i)
 		if (tab[i].cp != NULL)
-		    *(tab[i].cp) = (varp == &p_lcs ? NUL : ' ');
+		    *(tab[i].cp) =
+			((varp == &p_lcs || varp == &wp->w_p_lcs) ? NUL : ' ');
 
-	    if (varp == &p_lcs)
+	    if (varp == &p_lcs || varp == &wp->w_p_lcs)
 	    {
-		lcs_tab1 = NUL;
-		lcs_tab3 = NUL;
+		wp->w_lcs_chars.tab1 = NUL;
+		wp->w_lcs_chars.tab3 = NUL;
 	    }
 	    else
 	    {
@@ -4833,7 +4837,7 @@ set_chars_option(char_u **varp)
 		    c1 = mb_ptr2char_adv(&s);
 		    if (mb_char2cells(c1) > 1)
 			continue;
-		    if (tab[i].cp == &lcs_tab2)
+		    if (tab[i].cp == &wp->w_lcs_chars.tab2)
 		    {
 			if (*s == NUL)
 			    continue;
@@ -4852,11 +4856,11 @@ set_chars_option(char_u **varp)
 		    {
 			if (round)
 			{
-			    if (tab[i].cp == &lcs_tab2)
+			    if (tab[i].cp == &wp->w_lcs_chars.tab2)
 			    {
-				lcs_tab1 = c1;
-				lcs_tab2 = c2;
-				lcs_tab3 = c3;
+				wp->w_lcs_chars.tab1 = c1;
+				wp->w_lcs_chars.tab2 = c2;
+				wp->w_lcs_chars.tab3 = c3;
 			    }
 			    else if (tab[i].cp != NULL)
 				*(tab[i].cp) = c1;
diff --git a/src/structs.h b/src/structs.h
index 7bcbc389e8..0ca9203406 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -225,6 +225,8 @@ typedef struct
 #endif
     int		wo_list;
 #define w_p_list w_onebuf_opt.wo_list	// 'list'
+    char_u	*wo_lcs;
+#define w_p_lcs w_onebuf_opt.wo_lcs	// 'listchars'
     int		wo_nu;
 #define w_p_nu w_onebuf_opt.wo_nu	// 'number'
     int		wo_rnu;
@@ -3333,6 +3335,26 @@ typedef struct {
 #endif
 
 /*
+ * Characters from the 'listchars' option
+ */
+typedef struct
+{
+    int		eol;
+    int		ext;
+    int		prec;
+    int		nbsp;
+    int		space;
+    int		tab1;
+    int		tab2;
+    int		tab3;
+    int		trail;
+    int		lead;
+#ifdef FEAT_CONCEAL
+    int		conceal;
+#endif
+} lcs_chars_T;
+
+/*
  * Structure which contains all information that belongs to a window
  *
  * All row numbers are relative to the start of the window, except w_winrow.
@@ -3380,6 +3402,8 @@ struct window_S
     colnr_T	w_old_visual_col;   // last known start of visual part
     colnr_T	w_old_curswant;	    // last known value of Curswant
 
+    lcs_chars_T	w_lcs_chars;	    // 'listchars' characters
+
     /*
      * "w_topline", "w_leftcol" and "w_skipcol" specify the offsets for
      * displaying the buffer.
diff --git a/src/testdir/test_listchars.vim b/src/testdir/test_listchars.vim
index 69c98b9269..ca47d5283a 100644
--- a/src/testdir/test_listchars.vim
+++ b/src/testdir/test_listchars.vim
@@ -234,4 +234,110 @@ func Test_listchars_composing()
   set listchars& ff&
 endfunction
 
+" Check for the value of the 'listchars' option
+func s:CheckListCharsValue(expected)
+  call assert_equal(a:expected, &listchars)
+  call assert_equal(a:expected, getwinvar(0, '&listchars'))
+endfunc
+
+" Test for using a window local value for 'listchars'
+func Test_listchars_window_local()
+  %bw!
+  set list listchars&
+  new
+  " set a local value for 'listchars'
+  setlocal listchars=tab:+-,eol:#
+  call s:CheckListCharsValue('tab:+-,eol:#')
+  " When local value is reset, global value should be used
+  setlocal listchars=
+  call s:CheckListCharsValue('eol:$')
+  " Use 'setlocal <' to copy global value
+  setlocal listchars=space:.,extends:>