| 1 | ## compare_shells: dash bash mksh zsh ash
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| 2 |
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| 3 | #### Remove const suffix
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| 4 | v=abcd
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| 5 | echo ${v%d} ${v%%cd}
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| 6 | ## stdout: abc ab
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| 7 |
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| 8 | #### Remove const prefix
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| 9 | v=abcd
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| 10 | echo ${v#a} ${v##ab}
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| 11 | ## stdout: bcd cd
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| 12 |
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| 13 | #### Remove const suffix is vectorized on user array
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| 14 | a=(1a 2a 3a)
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| 15 | argv.py ${a[@]%a}
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| 16 | ## stdout: ['1', '2', '3']
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| 17 | ## status: 0
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| 18 | ## N-I dash/mksh/ash stdout-json: ""
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| 19 | ## N-I dash/ash status: 2
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| 20 | ## N-I mksh status: 1
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| 21 |
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| 22 | #### Remove const suffix is vectorized on $@ array
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| 23 | set -- 1a 2a 3a
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| 24 | argv.py ${@%a}
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| 25 | ## stdout: ['1', '2', '3']
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| 26 | ## status: 0
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| 27 | ## N-I dash/ash stdout: ['1a', '2a', '3']
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| 28 | ## N-I dash/ash status: 0
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| 29 | ## N-I mksh stdout-json: ""
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| 30 | ## N-I mksh status: 1
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| 31 |
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| 32 | #### Remove const suffix from undefined
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| 33 | echo ${undef%suffix}
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| 34 | ## stdout:
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| 35 |
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| 36 | #### Remove shortest glob suffix
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| 37 | v=aabbccdd
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| 38 | echo ${v%c*}
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| 39 | ## stdout: aabbc
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| 40 |
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| 41 | #### Remove longest glob suffix
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| 42 | v=aabbccdd
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| 43 | echo ${v%%c*}
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| 44 | ## stdout: aabb
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| 45 |
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| 46 | #### Remove shortest glob prefix
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| 47 | v=aabbccdd
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| 48 | echo ${v#*b}
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| 49 | ## stdout: bccdd
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| 50 |
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| 51 | #### Remove longest glob prefix
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| 52 | v=aabbccdd
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| 53 | echo ${v##*b}
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| 54 | ## stdout: ccdd
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| 55 |
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| 56 | #### Strip char class
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| 57 | v=abc
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| 58 | echo ${v%[[:alpha:]]}
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| 59 | ## stdout: ab
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| 60 | ## N-I mksh stdout: abc
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| 61 |
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| 62 | #### Strip unicode prefix
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| 63 | # NOTE: LANG is set to utf-8.
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| 64 | v='μ-'
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| 65 | echo ${v#?} # ? is a glob that stands for one character
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| 66 | echo ${v##?}
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| 67 | v='-μ'
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| 68 | echo ${v%?} # ? is a glob that stands for one character
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| 69 | echo ${v%%?}
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| 70 | ## STDOUT:
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| 71 | -
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| 72 | -
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| 73 | -
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| 74 | -
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| 75 | ## BUG dash/mksh/ash stdout-repr: '\xbc-\n\xbc-\n-\xce\n-\xce\n'
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| 76 | ## BUG zsh stdout-repr: '\n\n\n\n'
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| 77 |
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| 78 | #### Bug fix: Test that you can remove everything with glob
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| 79 | s='--x--'
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| 80 | argv.py "${s%%-*}" "${s%-*}" "${s#*-}" "${s##*-}"
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| 81 | ## STDOUT:
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| 82 | ['', '--x-', '-x--', '']
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| 83 | ## END
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| 84 |
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| 85 | #### Test that you can remove everything with const
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| 86 | s='abcd'
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| 87 | argv.py "${s%%abcd}" "${s%abcd}" "${s#abcd}" "${s##abcd}"
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| 88 | # failure case:
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| 89 | argv.py "${s%%abcde}" "${s%abcde}" "${s#abcde}" "${s##abcde}"
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| 90 | ## STDOUT:
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| 91 | ['', '', '', '']
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| 92 | ['abcd', 'abcd', 'abcd', 'abcd']
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| 93 | ## END
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| 94 |
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| 95 | #### Prepend using replacement of #
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| 96 | # This case was found in Kubernetes and others
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| 97 | array=(aa bb '')
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| 98 | argv.py ${array[@]/#/prefix-}
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| 99 | ## STDOUT:
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| 100 | ['prefix-aa', 'prefix-bb', 'prefix-']
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| 101 | ## END
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| 102 | ## N-I dash/ash status: 2
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| 103 | ## N-I dash/ash stdout-json: ""
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| 104 | ## N-I mksh status: 1
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| 105 | ## N-I mksh stdout-json: ""
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| 106 |
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| 107 | #### Append using replacement of %
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| 108 | array=(aa bb '')
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| 109 | argv.py ${array[@]/%/-suffix}
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| 110 | ## STDOUT:
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| 111 | ['aa-suffix', 'bb-suffix', '-suffix']
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| 112 | ## END
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| 113 | ## N-I dash/ash status: 2
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| 114 | ## N-I dash/ash stdout-json: ""
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| 115 | ## N-I mksh status: 1
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| 116 | ## N-I mksh stdout-json: ""
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| 117 |
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| 118 | #### strip unquoted and quoted [
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| 119 | # I guess dash and mksh treat unquoted [ as an invalid glob?
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| 120 | var='[foo]'
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| 121 | echo ${var#[}
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| 122 | echo ${var#"["}
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| 123 | echo "${var#[}"
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| 124 | echo "${var#"["}"
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| 125 | ## STDOUT:
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| 126 | foo]
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| 127 | foo]
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| 128 | foo]
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| 129 | foo]
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| 130 | ## END
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| 131 | ## OK mksh STDOUT:
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| 132 | [foo]
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| 133 | foo]
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| 134 | [foo]
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| 135 | foo]
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| 136 | ## END
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| 137 | ## BUG zsh stdout-json: ""
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| 138 | ## BUG zsh status: 1
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| 139 |
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| 140 | #### strip unquoted and quoted []
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| 141 | # LooksLikeGlob('[]') is true
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| 142 | # I guess dash, mksh, and zsh treat unquoted [ as an invalid glob?
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| 143 | var='[]foo[]'
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| 144 | echo ${var#[]}
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| 145 | echo ${var#"[]"}
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| 146 | echo "${var#[]}"
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| 147 | echo "${var#"[]"}"
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| 148 | ## STDOUT:
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| 149 | foo[]
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| 150 | foo[]
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| 151 | foo[]
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| 152 | foo[]
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| 153 | ## END
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| 154 | ## OK mksh/zsh STDOUT:
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| 155 | []foo[]
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| 156 | foo[]
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| 157 | []foo[]
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| 158 | foo[]
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| 159 | ## END
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| 160 |
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| 161 | #### strip unquoted and quoted ?
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| 162 | var='[foo]'
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| 163 | echo ${var#?}
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| 164 | echo ${var#"?"}
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| 165 | echo "${var#?}"
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| 166 | echo "${var#"?"}"
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| 167 | ## STDOUT:
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| 168 | foo]
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| 169 | [foo]
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| 170 | foo]
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| 171 | [foo]
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| 172 | ## END
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| 173 |
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| 174 | #### strip unquoted and quoted [a]
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| 175 | var='[a]foo[]'
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| 176 | echo ${var#[a]}
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| 177 | echo ${var#"[a]"}
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| 178 | echo "${var#[a]}"
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| 179 | echo "${var#"[a]"}"
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| 180 | ## STDOUT:
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| 181 | [a]foo[]
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| 182 | foo[]
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| 183 | [a]foo[]
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| 184 | foo[]
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| 185 | ## END
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| 186 |
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| 187 | #### Nested % and # operators (bug reported by Crestwave)
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| 188 | var=$'\n'
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| 189 | argv.py "${var#?}"
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| 190 | argv.py "${var%''}"
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| 191 | argv.py "${var%"${var#?}"}"
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| 192 | var='a'
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| 193 | argv.py "${var#?}"
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| 194 | argv.py "${var%''}"
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| 195 | argv.py "${var%"${var#?}"}"
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| 196 | ## STDOUT:
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| 197 | ['']
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| 198 | ['\n']
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| 199 | ['\n']
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| 200 | ['']
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| 201 | ['a']
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| 202 | ['a']
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| 203 | ## END
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| 204 | ## N-I dash STDOUT:
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| 205 | ['\\n']
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| 206 | ['$\\n']
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| 207 | ['$']
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| 208 | ['']
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| 209 | ['a']
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| 210 | ['a']
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| 211 | ## END
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| 212 |
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| 213 | #### strip * (bug regression)
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| 214 | x=abc
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| 215 | argv.py "${x#*}"
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| 216 | argv.py "${x##*}"
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| 217 | argv.py "${x%*}"
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| 218 | argv.py "${x%%*}"
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| 219 | ## STDOUT:
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| 220 | ['abc']
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| 221 | ['']
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| 222 | ['abc']
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| 223 | ['']
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| 224 | ## END
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| 225 | ## BUG zsh STDOUT:
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| 226 | ['abc']
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| 227 | ['']
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| 228 | ['ab']
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| 229 | ['']
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| 230 | ## END
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| 231 |
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| 232 | #### strip ?
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| 233 | x=abc
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| 234 | argv.py "${x#?}"
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| 235 | argv.py "${x##?}"
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| 236 | argv.py "${x%?}"
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| 237 | argv.py "${x%%?}"
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| 238 | ## STDOUT:
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| 239 | ['bc']
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| 240 | ['bc']
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| 241 | ['ab']
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| 242 | ['ab']
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| 243 | ## END
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| 244 |
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| 245 | #### strip all
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| 246 | x=abc
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| 247 | argv.py "${x#abc}"
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| 248 | argv.py "${x##abc}"
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| 249 | argv.py "${x%abc}"
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| 250 | argv.py "${x%%abc}"
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| 251 | ## STDOUT:
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| 252 | ['']
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| 253 | ['']
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| 254 | ['']
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| 255 | ['']
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| 256 | ## END
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| 257 |
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| 258 | #### strip none
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| 259 | x=abc
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| 260 | argv.py "${x#}"
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| 261 | argv.py "${x##}"
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| 262 | argv.py "${x%}"
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| 263 | argv.py "${x%%}"
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| 264 | ## STDOUT:
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| 265 | ['abc']
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| 266 | ['abc']
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| 267 | ['abc']
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| 268 | ['abc']
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| 269 | ## END
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| 270 |
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| 271 | #### strip all unicode
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| 272 | x=μabcμ
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| 273 | echo "${x#?abc?}"
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| 274 | echo "${x##?abc?}"
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| 275 | echo "${x%?abc?}"
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| 276 | echo "${x%%?abc?}"
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| 277 | ## STDOUT:
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| 278 |
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| 279 |
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| 280 |
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| 281 |
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| 282 | ## BUG dash/mksh/ash STDOUT:
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| 283 | μabcμ
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| 284 | μabcμ
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| 285 | μabcμ
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| 286 | μabcμ
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| 287 | ## END
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| 288 |
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| 289 | #### strip none unicode
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| 290 | x=μabcμ
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| 291 | argv.py "${x#}"
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| 292 | argv.py "${x##}"
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| 293 | argv.py "${x%}"
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| 294 | argv.py "${x%%}"
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| 295 | ## STDOUT:
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| 296 | ['\xce\xbcabc\xce\xbc']
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| 297 | ['\xce\xbcabc\xce\xbc']
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| 298 | ['\xce\xbcabc\xce\xbc']
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| 299 | ['\xce\xbcabc\xce\xbc']
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| 300 | ## END
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| 301 |
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| 302 | #### Strip Right Brace (#702)
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| 303 | var='$foo'
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| 304 | echo 1 "${var#$foo}"
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| 305 | echo 2 "${var#\$foo}"
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| 306 |
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| 307 | var='}'
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| 308 | echo 10 "${var#}}"
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| 309 | echo 11 "${var#\}}"
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| 310 | echo 12 "${var#'}'}"
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| 311 | echo 13 "${var#"}"}"
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| 312 | ## STDOUT:
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| 313 | 1 $foo
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| 314 | 2
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| 315 | 10 }}
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| 316 | 11
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| 317 | 12
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| 318 | 13
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| 319 | ## END
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| 320 | ## BUG zsh STDOUT:
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| 321 | 1 $foo
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| 322 | 2
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| 323 | 10 }}
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| 324 | 11
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| 325 | 12 }'}
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| 326 | 13
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| 327 | ## END
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| 328 |
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| 329 | #### \(\) in pattern (regression)
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| 330 | x='foo()'
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| 331 | echo 1 ${x%*\(\)}
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| 332 | echo 2 ${x%%*\(\)}
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| 333 | echo 3 ${x#*\(\)}
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| 334 | echo 4 ${x##*\(\)}
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| 335 | ## STDOUT:
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| 336 | 1 foo
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| 337 | 2
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| 338 | 3
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| 339 | 4
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| 340 | ## END
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| 341 |
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| 342 | #### extglob in pattern
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| 343 | case $SH in (dash|zsh|ash) exit ;; esac
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| 344 |
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| 345 | shopt -s extglob
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| 346 |
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| 347 | x='foo()'
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| 348 | echo 1 ${x%*(foo|bar)'()'}
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| 349 | echo 2 ${x%%*(foo|bar)'()'}
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| 350 | echo 3 ${x#*(foo|bar)'()'}
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| 351 | echo 4 ${x##*(foo|bar)'()'}
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| 352 | ## STDOUT:
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| 353 | 1 foo
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| 354 | 2
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| 355 | 3
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| 356 | 4
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| 357 | ## END
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| 358 | ## N-I dash/zsh/ash stdout-json: ""
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