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vim-patch:8.1.0935: old regexp engine may use invalid buffer #9692

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Problem:    Old regexp engine may use invalid buffer for 'iskeyword' or
            uninitialized buffer pointer. (Kuang-che Wu)
Solution:   Set rex.reg_buf when compiling the pattern. (closes vim/vim#3972)
8bfd9469ce
This commit is contained in:
Jan Edmund Lazo 2019-03-07 06:05:22 -05:00 committed by Justin M. Keyes
parent b51e5d8b8d
commit 5f84b1dc41
2 changed files with 18 additions and 0 deletions
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2
src/nvim/regexp.c
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@ -7116,6 +7116,8 @@ regprog_T *vim_regcomp(char_u *expr_arg, int re_flags)
}
bt_regengine.expr = expr;
nfa_regengine.expr = expr;
// reg_iswordc() uses rex.reg_buf
rex.reg_buf = curbuf;
//
// First try the NFA engine, unless backtracking was requested.

16
src/nvim/testdir/test_regexp_latin.vim
View File

@ -47,3 +47,19 @@ func Test_get_equi_class()
s/.*/[[.
call assert_equal(1, search(getline(1)))
endfunc
func Test_rex_init()
set noincsearch
set re=1
new
setlocal iskeyword=a-z
call setline(1, ['abc', 'ABC'])
call assert_equal(1, search('[[:keyword:]]'))
new
setlocal iskeyword=A-Z
call setline(1, ['abc', 'ABC'])
call assert_equal(2, search('[[:keyword:]]'))
bwipe!
bwipe!
set re=0
endfunc