1#!/bin/sh 2# Ensure extended regular expressions work in posix mode 3 4# Copyright (C) 2017-2020 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18. "${srcdir=.}/testsuite/init.sh"; path_prepend_ ./sed 19print_ver_ sed 20 21printf "hi+\n" > in1 || framework_failure_ 22 23printf "{hi+}\n" > exp-special || framework_failure_ 24printf "h{i+}\n" > exp-literal || framework_failure_ 25 26# '+' is special in ERE 27sed -E 's/(.+)/{\1}/' in1 > out0 || fail=1 28compare_ exp-special out0 || fail=1 29 30# '+' is special in ERE, even if --posix is used. 31# sed-4.4 and earlier did not treat it as special (bug#26409). 32sed --posix -E 's/(.+)/{\1}/' in1 > out1 || fail=1 33compare_ exp-special out1 || fail=1 34 35# Escape the '+' it to remove special meaning in ERE 36sed --posix -E 's/(.\+)/{\1}/' in1 > out2 || fail=1 37compare_ exp-literal out2 || fail=1 38 39# with BRE and --posix, '+' should have no special meaning 40sed --posix 's/\(.+\)/{\1}/' in1 > out3 || fail=1 41compare_ exp-literal out3 || fail=1 42 43# with BRE without --posix, '+' should have no special meaning 44sed 's/\(.+\)/{\1}/' in1 > out4 || fail=1 45compare_ exp-literal out4 || fail=1 46 47# with BRE without --posix, '\+' is special (GNU extension) 48sed 's/\(.\+\)/{\1}/' in1 > out5 || fail=1 49compare_ exp-special out5 || fail=1 50 51 52Exit $fail 53