commit 6daeef1933be68055aabe1d55f8467d46a707753
author Bram Moolenaar <Bram@vim.org> Sun Oct 15 22:56:49 2017 +0200
committer Bram Moolenaar <Bram@vim.org> Sun Oct 15 22:56:49 2017 +0200
tree c39230aa296e11d9ed34767d0c22285d3ae5c0e3
parent 059db5c29ffef283a4b90bab9228708fa32e3dd2

patch 8.0.1203: terminal window mistreats composing characters

Problem:    Terminal window mistreats composing characters.
Solution:   Count composing characters with the base character. (Ozaki Kiichi,
            closes #2195)

src/mbyte.c

diff --git a/src/mbyte.c b/src/mbyte.c
index fe56731..6cda0e7 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -1402,6 +1402,8 @@
     int
 utf_uint2cells(UINT32_T c)
 {
+    if (c >= 0x100 && utf_iscomposing((int)c))
+	return 0;
     return utf_char2cells((int)c);
 }
 #endif