patch 8.0.1523: cannot write and read terminal screendumps commit https://github.com/vim/vim/commit/d96ff165113ce5fe62107add590997660e3d4802 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Feb 18 22:13:29 2018 +0100 patch 8.0.1523: cannot write and read terminal screendumps Problem: Cannot write and read terminal screendumps. Solution: Add term_dumpwrite(), term_dumpread() and term_dumpdiff(). Also add assert_equalfile().

--- a/src/normal.c
+++ b/src/normal.c
@@ -7474,6 +7474,11 @@ v_visop(cmdarg_T *cap)
     static void
 nv_subst(cmdarg_T *cap)
 {
+#ifdef FEAT_TERMINAL
+    /* When showing output of term_dumpdiff() swap the top and botom. */
+    if (term_swap_diff() == OK)
+	return;
+#endif
     if (VIsual_active)	/* "vs" and "vS" are the same as "vc" */
     {
 	if (cap->cmdchar == 'S')