neovim

commit 649a11bc139d109e8a3adc893a9e53ab32cf248c
parent 88a4ac22f082e5c9d59acd8e9031908e1d2853c3
Author: zeertzjq <zeertzjq@outlook.com>
Date:   Fri,  1 Apr 2022 17:08:04 +0800

vim-patch:8.2.3471: crash when using CTRL-T after an empty search pattern

Problem:    Crash when using CTRL-T after an empty search pattern.
Solution:   Bail out when there is no previous search pattern. (closes vim/vim#8953)
https://github.com/vim/vim/commit/d8d957de86f218de9124ca1209548f8c6f61b69b

Diffstat:
M
src/nvim/ex_getln.c
 | 
4
++++
M
src/nvim/testdir/test_search.vim
 | 
10
++++++++++

2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/nvim/ex_getln.c b/src/nvim/ex_getln.c
@@ -1606,6 +1606,10 @@ static int may_do_command_line_next_incsearch(int firstc, long count, incsearch_
 
   if (search_delim == ccline.cmdbuff[skiplen]) {
     pat = last_search_pattern();
+    if (pat == NULL) {
+      restore_last_search_pattern();
+      return FAIL;
+    }
     skiplen = 0;
     patlen = (int)STRLEN(pat);
   } else {
diff --git a/src/nvim/testdir/test_search.vim b/src/nvim/testdir/test_search.vim
@@ -1527,4 +1527,14 @@ func Test_incsearch_highlighting_newline()
   bw
 endfunc
 
+func Test_no_last_search_pattern()
+  CheckOption incsearch
+
+  let @/ = ""
+  set incsearch
+  " this was causing a crash
+  call feedkeys("//\x14", 'xt')
+endfunc
+
+
 " vim: shiftwidth=2 sts=2 expandtab