Mercurial > vim
changeset 11352:251f1833db7d v8.0.0561
patch 8.0.0561: undefined behavior when using backslash after empty line
commit https://github.com/vim/vim/commit/478af67dd6a9adc456464c3736bda328ae3a28cb
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Apr 10 22:22:42 2017 +0200
patch 8.0.0561: undefined behavior when using backslash after empty line
Problem: Undefined behavior when using backslash after empty line.
Solution: Check for an empty line. (Dominique Pelle, closes https://github.com/vim/vim/issues/1631)
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Mon, 10 Apr 2017 22:30:03 +0200 |
parents | 9f40755e5429 |
children | 251fea7703a7 |
files | src/misc2.c src/testdir/test_vimscript.vim src/version.c |
diffstat | 3 files changed, 14 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/src/misc2.c +++ b/src/misc2.c @@ -2129,7 +2129,7 @@ ga_concat(garray_T *gap, char_u *s) { int len; - if (s == NULL) + if (s == NULL || *s == NUL) return; len = (int)STRLEN(s); if (ga_grow(gap, len) == OK)
--- a/src/testdir/test_vimscript.vim +++ b/src/testdir/test_vimscript.vim @@ -1310,6 +1310,17 @@ func Test_script_lines() endfunc "------------------------------------------------------------------------------- +" Test 96: line continuation {{{1 +" +" Undefined behavior was detected by ubsan with line continuation +" after an empty line. +"------------------------------------------------------------------------------- +func Test_script_emty_line_continuation() + + \ +endfunc + +"------------------------------------------------------------------------------- " Modelines {{{1 " vim: ts=8 sw=4 tw=80 fdm=marker " vim: fdt=substitute(substitute(foldtext(),\ '\\%(^+--\\)\\@<=\\(\\s*\\)\\(.\\{-}\\)\:\ \\%(\"\ \\)\\=\\(Test\ \\d*\\)\:\\s*',\ '\\3\ (\\2)\:\ \\1',\ \"\"),\ '\\(Test\\s*\\)\\(\\d\\)\\D\\@=',\ '\\1\ \\2',\ "")