commit 8e7048ca4b699bbdb8452c0f8c642bfd66cc7bf4
author Bram Moolenaar <Bram@vim.org> Thu Jun 12 18:39:22 2014 +0200
committer Bram Moolenaar <Bram@vim.org> Thu Jun 12 18:39:22 2014 +0200
tree c53e7f1de5f3c0bb3ab1c0ef29811feb08ecf174
parent e639eb44e9ca063f682f064095aa98fc781f5df1

updated for version 7.4.323
Problem:    Substitute() with zero width pattern breaks multi-byte character.
Solution:   Take multi-byte character size into account. (Yukihiro Nakadaira)

src/testdir/test69.in

diff --git a/src/testdir/test69.in b/src/testdir/test69.in
index 75317b4..2510c12 100644
--- a/src/testdir/test69.in
+++ b/src/testdir/test69.in
@@ -180,6 +180,13 @@
 byteidxcomp
 
 STARTTEST
+/^substitute
+:let y = substitute('１２３', '\zs', 'a', 'g')    | put =y
+ENDTEST
+
+substitute
+
+STARTTEST
 :g/^STARTTEST/.,/^ENDTEST/d
 :1;/^Results/,$wq! test.out
 ENDTEST