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Diffstat (limited to '')
| -rwxr-xr-x | src/grep/tests/z-anchor-newline | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/grep/tests/z-anchor-newline b/src/grep/tests/z-anchor-newline new file mode 100755 index 0000000..cacce66 --- /dev/null +++ b/src/grep/tests/z-anchor-newline @@ -0,0 +1,42 @@ +#!/bin/sh +# grep -z with an anchor in the regex could mistakenly match text +# including a newline. + +# Copyright 2016-2021 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src + +require_en_utf8_locale_ +require_compiled_in_MB_support +LC_ALL=en_US.UTF-8 + +printf 'a\nb\0' > in || framework_failure_ + +fail=0 + +# These three would all mistakenly match, because the [a-b] range +# forced the non-DFA (regexp-using) code path. +returns_ 1 grep -z '^[a-b]*$' in || fail=1 +returns_ 1 grep -z 'a[a-b]*$' in || fail=1 +returns_ 1 grep -z '^[a-b]*b' in || fail=1 + +# Test these for good measure; they exercise the DFA code path +# and always worked +returns_ 1 grep -z '^[ab]*$' in || fail=1 +returns_ 1 grep -z 'a[ab]*$' in || fail=1 +returns_ 1 grep -z '^[ab]*b' in || fail=1 + +Exit $fail |