options: make 'fillchars'/'listchars' local to window

Using 'listchars' is a nice way to highlight tabs that were included by accident
for buffers that set 'expandtab'.

But maybe one does not want this for buffers that set 'noexpandtab', so now one
can use:

    autocmd FileType go let &l:listchars .= ',tab:  '

1 files changed, 28 insertions, 0 deletions

diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index 05688790c2..a284ed5292 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -248,6 +248,10 @@ typedef struct {
 # define w_p_scl w_onebuf_opt.wo_scl    // 'signcolumn'
   char_u *wo_winhl;
 # define w_p_winhl w_onebuf_opt.wo_winhl    // 'winhighlight'
+  char_u *wo_fcs;
+# define w_p_fcs w_onebuf_opt.wo_fcs    // 'fillchars'
+  char_u *wo_lcs;
+# define w_p_lcs w_onebuf_opt.wo_lcs    // 'listchars'
 
   LastSet wo_scriptID[WV_COUNT];        // SIDs for window-local options
 # define w_p_scriptID w_onebuf_opt.wo_scriptID
@@ -1003,6 +1007,30 @@ 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
 
+  // 'listchars' characters. Defaults set in set_chars_option().
+  struct {
+    int eol;
+    int ext;
+    int prec;
+    int nbsp;
+    int space;
+    int tab1;                       ///< first tab character
+    int tab2;                       ///< second tab character
+    int trail;
+    int conceal;
+  } w_p_lcs_chars;
+
+  // 'fillchars' characters. Defaults set in set_chars_option().
+  struct {
+    int stl;
+    int stlnc;
+    int vert;
+    int fold;
+    int diff;
+    int msgsep;
+    int eob;
+  } w_p_fcs_chars;
+
   /*
    * "w_topline", "w_leftcol" and "w_skipcol" specify the offsets for
    * displaying the buffer.