| 1 | #!/bin/sh
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| 2 | # Ensure extended regular expressions work in posix mode
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| 3 |
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| 4 | # Copyright (C) 2017-2022 Free Software Foundation, Inc.
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| 5 |
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| 6 | # This program is free software: you can redistribute it and/or modify
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| 7 | # it under the terms of the GNU General Public License as published by
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| 8 | # the Free Software Foundation, either version 3 of the License, or
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| 9 | # (at your option) any later version.
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| 10 |
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| 11 | # This program is distributed in the hope that it will be useful,
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | # GNU General Public License for more details.
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| 15 |
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| 16 | # You should have received a copy of the GNU General Public License
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| 17 | # along with this program. If not, see <https://www.gnu.org/licenses/>.
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| 18 | . "${srcdir=.}/testsuite/init.sh"; path_prepend_ ./sed
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| 19 | print_ver_ sed
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| 20 |
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| 21 | printf "hi+\n" > in1 || framework_failure_
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| 22 |
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| 23 | printf "{hi+}\n" > exp-special || framework_failure_
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| 24 | printf "h{i+}\n" > exp-literal || framework_failure_
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| 25 |
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| 26 | # '+' is special in ERE
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| 27 | sed -E 's/(.+)/{\1}/' in1 > out0 || fail=1
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| 28 | compare_ exp-special out0 || fail=1
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| 29 |
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| 30 | # '+' is special in ERE, even if --posix is used.
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| 31 | # sed-4.4 and earlier did not treat it as special (bug#26409).
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| 32 | sed --posix -E 's/(.+)/{\1}/' in1 > out1 || fail=1
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| 33 | compare_ exp-special out1 || fail=1
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| 34 |
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| 35 | # Escape the '+' it to remove special meaning in ERE
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| 36 | sed --posix -E 's/(.\+)/{\1}/' in1 > out2 || fail=1
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| 37 | compare_ exp-literal out2 || fail=1
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| 38 |
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| 39 | # with BRE and --posix, '+' should have no special meaning
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| 40 | sed --posix 's/\(.+\)/{\1}/' in1 > out3 || fail=1
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| 41 | compare_ exp-literal out3 || fail=1
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| 42 |
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| 43 | # with BRE without --posix, '+' should have no special meaning
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| 44 | sed 's/\(.+\)/{\1}/' in1 > out4 || fail=1
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| 45 | compare_ exp-literal out4 || fail=1
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| 46 |
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| 47 | # with BRE without --posix, '\+' is special (GNU extension)
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| 48 | sed 's/\(.\+\)/{\1}/' in1 > out5 || fail=1
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| 49 | compare_ exp-special out5 || fail=1
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| 50 |
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| 51 |
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| 52 | Exit $fail
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