commit 02b4d9b18a03549b68e364e428392b7a62766c74
author Bram Moolenaar <Bram@vim.org> Sun Mar 14 19:46:45 2021 +0100
committer Bram Moolenaar <Bram@vim.org> Sun Mar 14 19:46:45 2021 +0100
tree e017eaa4d4531b7bccb612679b50848c94d9e5b3
parent 70ce8a1561c5396e4c4381f76a005cbb97646f80

patch 8.2.2607: strcharpart() cannot include composing characters

Problem:    strcharpart() cannot include composing characters.
Solution:   Add the {skipcc} argument.

src/testdir/test_expr_utf8.vim

diff --git a/src/testdir/test_expr_utf8.vim b/src/testdir/test_expr_utf8.vim
index b5937b2..c6d2e4e 100644
--- a/src/testdir/test_expr_utf8.vim
+++ b/src/testdir/test_expr_utf8.vim
@@ -31,6 +31,14 @@
   call assert_equal('a', strcharpart('àxb', 0, 1))
   call assert_equal('̀', strcharpart('àxb', 1, 1))
   call assert_equal('x', strcharpart('àxb', 2, 1))
+
+
+  call assert_equal('a', strcharpart('àxb', 0, 1, 0))
+  call assert_equal('à', strcharpart('àxb', 0, 1, 1))
+  call assert_equal('x', strcharpart('àxb', 1, 1, 1))
+
+  call assert_fails("let v = strcharpart('abc', 0, 0, [])", 'E745:')
+  call assert_fails("let v = strcharpart('abc', 0, 0, 2)", 'E1023:')
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab