From 8c1fb99d2d4058d2cc1decbfed89b1f73b38cef6 Mon Sep 17 00:00:00 2001
From: Patrick <patrick@bitscope.com>
Date: Tue, 12 Jul 2016 11:27:56 +1000
Subject: vim-patch:7.4.1491 #5048

Problem:    Visual-block shift breaks multi-byte characters.
Solution:   Compute column differently. (Yasuhiro Matsumoto) Add a test.

https://github.com/vim/vim/commit/20b4f463f4ab50fa9bcc9838aa94101fa5698125
---
 src/nvim/ops.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'src/nvim/ops.c')

diff --git a/src/nvim/ops.c b/src/nvim/ops.c
index 25b3b85497..e8a79fa820 100644
--- a/src/nvim/ops.c
+++ b/src/nvim/ops.c
@@ -339,10 +339,16 @@ static void shift_block(oparg_T *oap, int amount)
     total += bd.pre_whitesp;     /* all virtual WS up to & incl a split TAB */
     ws_vcol = bd.start_vcol - bd.pre_whitesp;
     if (bd.startspaces) {
-      if (has_mbyte)
-        bd.textstart += (*mb_ptr2len)(bd.textstart);
-      else
-        ++bd.textstart;
+      if (has_mbyte) {
+        if ((*mb_ptr2len)(bd.textstart) == 1) {
+          bd.textstart++;
+        } else {
+          ws_vcol = 0;
+          bd.startspaces = 0;
+        }
+      } else {
+        bd.textstart++;
+      }
     }
     for (; ascii_iswhite(*bd.textstart); ) {
       // TODO: is passing bd.textstart for start of the line OK?
-- 
cgit