commit e3a529bc877909a9eccf792461050b4f6737ed33
author zeertzjq <zeertzjq@outlook.com> Sun Jun 05 19:01:37 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Sun Jun 05 19:01:37 2022 +0100
tree ad3718402e376ba7ff5a21e7761e8719cbab0dc1
parent 6574577cacd393ab7591fc776ea060eebc939e55

patch 8.2.5058: input() does not handle composing characters properly

Problem:    input() does not handle composing characters properly.
Solution:   Use mb_cptr2char_adv() instead of mb_ptr2char_adv().
            (closes #10527)

src/testdir/test_functions.vim

diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index af07a64..f55e846 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -1545,6 +1545,10 @@
   call feedkeys(":let c = input('name? ', \"x\\<BS>y\")\<CR>\<CR>", 'xt')
   call assert_equal('y', c)
 
+  " Test for using text with composing characters as default input
+  call feedkeys(":let c = input('name? ', \"ã̳\")\<CR>\<CR>", 'xt')
+  call assert_equal('ã̳', c)
+
   " Test for using <CR> as default input
   call feedkeys(":let c = input('name? ', \"\\<CR>\")\<CR>x\<CR>", 'xt')
   call assert_equal(' x', c)