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authorBram Moolenaar <Bram@vim.org>2020-09-06 15:14:45 +0200
committerBram Moolenaar <Bram@vim.org>2020-09-06 15:14:45 +0200
commit8a0dcf43305586853f452a77fa295b0c8d54b463 (patch)
treeccf2c0ebb8744b84c55ca4c199f4d56708b6f7d6
parent4140c4f3fff1a441f2837f2f911ab0f0368e412a (diff)
downloadvim-git-8a0dcf43305586853f452a77fa295b0c8d54b463.tar.gz
patch 8.2.1621: crash when using submatch(0, 1) in substitute()v8.2.1621
Problem: Crash when using submatch(0, 1) in substitute(). Solution: Increment reference count. (closes #6887)
-rw-r--r--src/regexp.c1
-rw-r--r--src/testdir/test_substitute.vim6
-rw-r--r--src/version.c2
3 files changed, 9 insertions, 0 deletions
diff --git a/src/regexp.c b/src/regexp.c
index 229f6ef2b..375731c3c 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -2543,6 +2543,7 @@ reg_submatch_list(int no)
list_free(list);
return NULL;
}
+ ++list->lv_refcount;
return list;
}
#endif
diff --git a/src/testdir/test_substitute.vim b/src/testdir/test_substitute.vim
index 61c9cb34e..a137aa527 100644
--- a/src/testdir/test_substitute.vim
+++ b/src/testdir/test_substitute.vim
@@ -881,6 +881,12 @@ func Test_invalid_submatch()
call assert_equal([], submatch(1, 1))
endfunc
+func Test_submatch_list_concatenate()
+ let pat = 'A\(.\)'
+ let Rep = {-> string([submatch(0, 1)] + [[submatch(1)]])}
+ call substitute('A1', pat, Rep, '')->assert_equal("[['A1'], ['1']]")
+endfunc
+
func Test_substitute_expr_arg()
call assert_equal('123456789-123456789=', substitute('123456789',
\ '\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)\(.\)',
diff --git a/src/version.c b/src/version.c
index 36416ef17..cf7de76a6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1621,
+/**/
1620,
/**/
1619,