refactor(plines): use a struct for chartabsize state

This is a refactor extracted from vim-patch 9.0.0067: cannot show virtual text

The logic for inline virtual text is going to be different in nvim than
text property based text in vim, but this refactor is still useful,
as calculation of displayed linesize is going to be stateful in a
similar way.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 581f187140..f3a00ffeb2 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -849,11 +849,11 @@ static void get_col(typval_T *argvars, typval_T *rettv, bool charcol)
       // col(".") when the cursor is on the NUL at the end of the line
       // because of "coladd" can be seen as an extra column.
       if (virtual_active() && fp == &curwin->w_cursor) {
-        char_u *p = get_cursor_pos_ptr();
+        char *p = (char *)get_cursor_pos_ptr();
         if (curwin->w_cursor.coladd >=
             (colnr_T)win_chartabsize(curwin, p, curwin->w_virtcol - curwin->w_cursor.coladd)) {
           int l;
-          if (*p != NUL && p[(l = utfc_ptr2len((char *)p))] == NUL) {
+          if (*p != NUL && p[(l = utfc_ptr2len(p))] == NUL) {
             col += l;
           }
         }
@@ -8512,7 +8512,7 @@ static void f_strdisplaywidth(typval_T *argvars, typval_T *rettv, EvalFuncData f
     col = (int)tv_get_number(&argvars[1]);
   }
 
-  rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, (char_u *)s) - col);
+  rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, (char *)s) - col);
 }
 
 /// "strwidth()" function