patch 8.1.0105: all tab stops are the same commit https://github.com/vim/vim/commit/04958cbaf25eea27eceedaa987adfb354ad5f7fd Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 23 19:23:02 2018 +0200 patch 8.1.0105: all tab stops are the same Problem: All tab stops are the same. Solution: Add the variable tabstop feature. (Christian Brabandt, closes #2711)

--- a/src/beval.h
+++ b/src/beval.h
@@ -71,7 +71,10 @@ typedef struct BalloonEvalStruct
     void		*clientData;	/* For callback */
 #endif
 
-    int			ts;		/* tabstop setting for this buffer */
+    int			ts;		// tabstop setting for this buffer
+#ifdef FEAT_VARTABS
+    int			*vts;		// vartabstop setting for this buffer
+#endif
     char_u		*msg;
 } BalloonEval;