1 | #!/bin/sh
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2 | # Test character-class definitions in POSIX mode.
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3 |
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4 | # Copyright (C) 2016-2022 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 |
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19 | # NOTE:
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20 | # In GNU Extension mode, all text is normalized (e.g. backslash-X combinations).
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21 | # In POSIX mode, normalize_text() ensures content of character
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22 | # classes is not normalized.
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23 | #
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24 | # Compare:
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25 | # $ printf "t\t\n" | sed 's/[\t]/X/' | od -a
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26 | # 0000000 t X nl
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27 | # $ printf "t\t\n" | sed --posix 's/[\t]/X/' | od -a
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28 | # 0000000 X ht nl
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29 | #
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30 | # This test unit validates the special handling of character classes
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31 | # in posix mode (compile.c:normalize_text() implementation).
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32 |
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33 |
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34 | . "${srcdir=.}/testsuite/init.sh"; path_prepend_ ./sed
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35 | print_ver_ sed
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36 |
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37 | echo X > exp || framework_failure_
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38 |
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39 | # Closing bracket without opening bracket, match as-is
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40 | echo ']' | sed --posix 's/]/X/' > out1 || fail=1
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41 | compare_ exp out1 || fail=1
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42 |
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43 | # Two opening brackets (same state when opening the second one)
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44 | echo '[' | sed --posix 's/[[]/X/' > out2 || fail=1
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45 | compare_ exp out2 || fail=1
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46 |
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47 | # Escaping before and after the character class, but not inside it (POSIX MODE)
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48 | printf "\tt\t\n" | sed --posix 's/\t[\t]\t/X/' > out3 || fail=1
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49 | compare_ exp out3 || fail=1
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50 |
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51 | # Escaping before, inside, and after the character class (GNU MODE)
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52 | printf "\t\t\t\n" | sed 's/\t[\t]\t/X/' > out4 || fail=1
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53 | compare_ exp out4 || fail=1
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54 |
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55 | # Special characters, but outside a valid character-class syntax
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56 | printf "=\n" | sed --posix 's/[.=:.]/X/' > out5 || fail=1
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57 | compare_ exp out5 || fail=1
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58 |
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59 | # A valid character class definition
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60 | printf "b\n" | sed --posix 's/[[:alpha:]]/X/' > out6 || fail=1
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61 | compare_ exp out6 || fail=1
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62 |
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63 |
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64 |
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65 | Exit $fail
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