Merge pull request #1280 from splinterofchaos/visual-mb

vim-patch:7.4.408

src/nvim/ops.c

@@ -512,6 +512,20 @@ static void block_insert(oparg_T *oap, char_u *s, int b_insert, struct block_def
       }
     }
 
+    if (has_mbyte && spaces > 0) {
+      // Avoid starting halfway a multi-byte character.
+      if (b_insert) {
+        int off = (*mb_head_off)(oldp, oldp + offset + spaces);
+        spaces -= off;
+        count -= off;
+      } else {
+        int off = (*mb_off_next)(oldp, oldp + offset);
+        offset += off;
+        spaces = 0;
+        count = 0;
+      }
+    }
+
     newp = (char_u *) xmalloc((size_t)(STRLEN(oldp) + s_len + count + 1));
 
     /* copy up to shifted part */

src/nvim/testdir/Makefile

@@ -35,7 +35,8 @@ SCRIPTS := test_autoformat_join.out                                    \
            test_listlbr.out test_listlbr_utf8.out                      \
            test_changelist.out                                         \
            test_breakindent.out                                        \
-           test_insertcount.out
+           test_insertcount.out                                        \
+           test_utf8.out
 
 SCRIPTS_GUI := test16.out
 

src/nvim/testdir/test_utf8.in

@@ -0,0 +1,18 @@
+Tests for Unicode manipulations
+
+STARTTEST
+:so small.vim
+:set encoding=utf-8
+:" Visual block Insert adjusts for multi-byte char
+:new
+:call setline(1, ["aaa", "あああ", "bbb"])
+:exe ":norm! gg0l\<C-V>jjIx\<Esc>"
+:let r = getline(1, '$')
+:
+:bwipeout!
+:$put=r
+:call garbagecollect(1)
+:/^start:/,$wq! test.out
+ENDTEST
+
+start:

src/nvim/testdir/test_utf8.ok

@@ -0,0 +1,4 @@
+start:
+axaa
+xあああ
+bxbb

src/nvim/version.c

@@ -224,7 +224,7 @@ static int included_patches[] = {
   411,
   410,
   //409 NA
-  //408,
+  408,
   407,
   //406,
   405,