refactor(options): use schar_T representation for fillchars and listchars

A bit big, but practically it was a lot simpler to change over all
fillchars and all listchars at once, to not need to maintain two
parallel implementations.

This is mostly an internal refactor, but it also removes an arbitrary
limitation: that 'fillchars' and 'listchars' values can only be
single-codepoint characters. Now any character which fits into a single
screen cell can be used.

1 files changed, 31 insertions, 31 deletions

diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index c6bd5691b1..085070fc4a 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -971,41 +971,41 @@ typedef struct {
 
 /// Characters from the 'listchars' option.
 typedef struct {
-  int eol;
-  int ext;
-  int prec;
-  int nbsp;
-  int space;
-  int tab1;  ///< first tab character
-  int tab2;  ///< second tab character
-  int tab3;  ///< third tab character
-  int lead;
-  int trail;
-  int *multispace;
-  int *leadmultispace;
-  int conceal;
+  schar_T eol;
+  schar_T ext;
+  schar_T prec;
+  schar_T nbsp;
+  schar_T space;
+  schar_T tab1;  ///< first tab character
+  schar_T tab2;  ///< second tab character
+  schar_T tab3;  ///< third tab character
+  schar_T lead;
+  schar_T trail;
+  schar_T *multispace;
+  schar_T *leadmultispace;
+  schar_T conceal;
 } lcs_chars_T;
 
 /// Characters from the 'fillchars' option.
 typedef struct {
-  int stl;
-  int stlnc;
-  int wbr;
-  int horiz;
-  int horizup;
-  int horizdown;
-  int vert;
-  int vertleft;
-  int vertright;
-  int verthoriz;
-  int fold;
-  int foldopen;    ///< when fold is open
-  int foldclosed;  ///< when fold is closed
-  int foldsep;     ///< continuous fold marker
-  int diff;
-  int msgsep;
-  int eob;
-  int lastline;
+  schar_T stl;
+  schar_T stlnc;
+  schar_T wbr;
+  schar_T horiz;
+  schar_T horizup;
+  schar_T horizdown;
+  schar_T vert;
+  schar_T vertleft;
+  schar_T vertright;
+  schar_T verthoriz;
+  schar_T fold;
+  schar_T foldopen;    ///< when fold is open
+  schar_T foldclosed;  ///< when fold is closed
+  schar_T foldsep;     ///< continuous fold marker
+  schar_T diff;
+  schar_T msgsep;
+  schar_T eob;
+  schar_T lastline;
 } fcs_chars_T;
 
 /// Structure which contains all information that belongs to a window.