| 1 | ## compare_shells: bash
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| 2 | ## oils_failures_allowed: 7
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| 3 |
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| 4 | #### Lower Case with , and ,,
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| 5 | x='ABC DEF'
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| 6 | echo ${x,}
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| 7 | echo ${x,,}
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| 8 | echo empty=${empty,}
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| 9 | echo empty=${empty,,}
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| 10 | ## STDOUT:
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| 11 | aBC DEF
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| 12 | abc def
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| 13 | empty=
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| 14 | empty=
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| 15 | ## END
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| 16 |
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| 17 | #### Upper Case with ^ and ^^
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| 18 | x='abc def'
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| 19 | echo ${x^}
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| 20 | echo ${x^^}
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| 21 | echo empty=${empty^}
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| 22 | echo empty=${empty^^}
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| 23 | ## STDOUT:
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| 24 | Abc def
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| 25 | ABC DEF
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| 26 | empty=
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| 27 | empty=
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| 28 | ## END
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| 29 |
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| 30 | #### Case folding - Unicode characters
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| 31 |
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| 32 | # https://www.utf8-chartable.de/unicode-utf8-table.pl
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| 33 |
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| 34 | x=$'\u00C0\u00C8' # upper grave
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| 35 | y=$'\u00E1\u00E9' # lower acute
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| 36 |
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| 37 | echo u ${x^}
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| 38 | echo U ${x^^}
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| 39 |
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| 40 | echo l ${x,}
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| 41 | echo L ${x,,}
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| 42 |
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| 43 | echo u ${y^}
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| 44 | echo U ${y^^}
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| 45 |
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| 46 | echo l ${y,}
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| 47 | echo L ${y,,}
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| 48 |
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| 49 | ## STDOUT:
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| 50 | u ÀÈ
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| 51 | U ÀÈ
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| 52 | l àÈ
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| 53 | L àè
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| 54 | u Áé
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| 55 | U ÁÉ
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| 56 | l áé
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| 57 | L áé
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| 58 | ## END
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| 59 |
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| 60 | #### Case folding - multi code point
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| 61 |
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| 62 | echo shell
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| 63 | small=$'\u00DF'
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| 64 | echo u ${small^}
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| 65 | echo U ${small^^}
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| 66 |
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| 67 | echo l ${small,}
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| 68 | echo L ${small,,}
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| 69 | echo
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| 70 |
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| 71 | echo python2
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| 72 | python2 -c '
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| 73 | small = u"\u00DF"
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| 74 | print(small.upper().encode("utf-8"))
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| 75 | print(small.lower().encode("utf-8"))
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| 76 | '
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| 77 | echo
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| 78 |
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| 79 | # Not in the container images, but python 3 DOES support it!
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| 80 | # This is moved to demo/survey-case-fold.sh
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| 81 |
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| 82 | if false; then
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| 83 | echo python3
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| 84 | python3 -c '
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| 85 | import sys
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| 86 | small = u"\u00DF"
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| 87 | sys.stdout.buffer.write(small.upper().encode("utf-8") + b"\n")
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| 88 | sys.stdout.buffer.write(small.lower().encode("utf-8") + b"\n")
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| 89 | '
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| 90 | fi
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| 91 |
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| 92 | if false; then
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| 93 | # Yes, supported
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| 94 | echo node.js
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| 95 |
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| 96 | nodejs -e '
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| 97 | var small = "\u00DF"
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| 98 | console.log(small.toUpperCase())
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| 99 | console.log(small.toLowerCase())
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| 100 | '
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| 101 | fi
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| 102 |
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| 103 | ## STDOUT:
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| 104 | ## END
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| 105 | ## BUG bash STDOUT:
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| 106 | shell
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| 107 | u ß
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| 108 | U ß
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| 109 | l ß
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| 110 | L ß
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| 111 |
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| 112 | python2
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| 113 | ß
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| 114 | ß
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| 115 |
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| 116 | ## END
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| 117 |
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| 118 | #### Case folding that depends on locale (not enabled, requires Turkish locale)
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| 119 |
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| 120 | # Hm this works in demo/survey-case-fold.sh
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| 121 | # Is this a bash 4.4 thing?
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| 122 |
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| 123 | #export LANG='tr_TR.UTF-8'
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| 124 | #echo $LANG
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| 125 |
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| 126 | x='i'
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| 127 |
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| 128 | echo u ${x^}
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| 129 | echo U ${x^^}
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| 130 |
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| 131 | echo l ${x,}
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| 132 | echo L ${x,,}
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| 133 |
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| 134 | ## OK bash/osh STDOUT:
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| 135 | u I
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| 136 | U I
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| 137 | l i
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| 138 | L i
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| 139 | ## END
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| 140 |
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| 141 | #### Lower Case with constant string (VERY WEIRD)
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| 142 | x='AAA ABC DEF'
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| 143 | echo ${x,A}
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| 144 | echo ${x,,A} # replaces every A only?
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| 145 | ## STDOUT:
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| 146 | aAA ABC DEF
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| 147 | aaa aBC DEF
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| 148 | ## END
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| 149 |
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| 150 | #### Lower Case glob
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| 151 |
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| 152 | # Hm with C.UTF-8, this does no case folding?
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| 153 | export LC_ALL=en_US.UTF-8
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| 154 |
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| 155 | x='ABC DEF'
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| 156 | echo ${x,[d-f]}
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| 157 | echo ${x,,[d-f]} # bash 4.4 fixed in bash 5.2.21
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| 158 | ## STDOUT:
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| 159 | ABC DEF
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| 160 | ABC DEF
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| 161 | ## END
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| 162 |
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| 163 | #### ${x@u} U L - upper / lower case (bash 5.1 feature)
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| 164 |
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| 165 | # https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html
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| 166 |
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| 167 | x='abc DEF'
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| 168 |
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| 169 | echo "${x@u}"
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| 170 |
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| 171 | echo "${x@U}"
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| 172 |
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| 173 | echo "${x@L}"
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| 174 |
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| 175 | ## STDOUT:
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| 176 | Abc DEF
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| 177 | ABC DEF
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| 178 | abc def
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| 179 | ## END
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| 180 |
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| 181 |
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| 182 | #### ${x@Q}
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| 183 | x="FOO'BAR spam\"eggs"
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| 184 | eval "new=${x@Q}"
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| 185 | test "$x" = "$new" && echo OK
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| 186 | ## STDOUT:
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| 187 | OK
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| 188 | ## END
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| 189 |
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| 190 | #### ${array@Q} and ${array[@]@Q}
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| 191 | array=(x 'y\nz')
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| 192 | echo ${array[@]@Q}
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| 193 | echo ${array@Q}
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| 194 | echo ${array@Q}
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| 195 | ## STDOUT:
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| 196 | 'x' 'y\nz'
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| 197 | 'x'
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| 198 | 'x'
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| 199 | ## END
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| 200 | ## OK osh STDOUT:
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| 201 | x $'y\\nz'
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| 202 | x
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| 203 | x
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| 204 | ## END
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| 205 |
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| 206 | #### ${!prefix@} ${!prefix*} yields sorted array of var names
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| 207 | ZOO=zoo
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| 208 | ZIP=zip
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| 209 | ZOOM='one two'
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| 210 | Z='three four'
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| 211 |
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| 212 | z=lower
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| 213 |
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| 214 | argv.py ${!Z*}
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| 215 | argv.py ${!Z@}
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| 216 | argv.py "${!Z*}"
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| 217 | argv.py "${!Z@}"
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| 218 | for i in 1 2; do argv.py ${!Z*} ; done
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| 219 | for i in 1 2; do argv.py ${!Z@} ; done
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| 220 | for i in 1 2; do argv.py "${!Z*}"; done
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| 221 | for i in 1 2; do argv.py "${!Z@}"; done
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| 222 | ## STDOUT:
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| 223 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 224 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 225 | ['Z ZIP ZOO ZOOM']
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| 226 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 227 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 228 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 229 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 230 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 231 | ['Z ZIP ZOO ZOOM']
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| 232 | ['Z ZIP ZOO ZOOM']
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| 233 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 234 | ['Z', 'ZIP', 'ZOO', 'ZOOM']
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| 235 | ## END
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| 236 |
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| 237 | #### ${!prefix@} matches var name (regression)
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| 238 | hello1=1 hello2=2 hello3=3
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| 239 | echo ${!hello@}
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| 240 | hello=()
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| 241 | echo ${!hello@}
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| 242 | ## STDOUT:
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| 243 | hello1 hello2 hello3
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| 244 | hello hello1 hello2 hello3
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| 245 | ## END
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| 246 |
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| 247 | #### ${var@a} for attributes
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| 248 | array=(one two)
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| 249 | echo ${array@a}
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| 250 | declare -r array=(one two)
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| 251 | echo ${array@a}
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| 252 | declare -rx PYTHONPATH=hi
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| 253 | echo ${PYTHONPATH@a}
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| 254 |
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| 255 | # bash and osh differ here
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| 256 | #declare -rxn x=z
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| 257 | #echo ${x@a}
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| 258 | ## STDOUT:
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| 259 | a
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| 260 | ar
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| 261 | rx
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| 262 | ## END
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| 263 |
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| 264 | #### ${var@a} error conditions
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| 265 | echo [${?@a}]
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| 266 | ## STDOUT:
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| 267 | []
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| 268 | ## END
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| 269 |
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| 270 | #### undef and @P @Q @a
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| 271 | $SH -c 'echo ${undef@P}'
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| 272 | echo status=$?
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| 273 | $SH -c 'echo ${undef@Q}'
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| 274 | echo status=$?
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| 275 | $SH -c 'echo ${undef@a}'
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| 276 | echo status=$?
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| 277 | ## STDOUT:
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| 278 |
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| 279 | status=0
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| 280 |
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| 281 | status=0
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| 282 |
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| 283 | status=0
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| 284 | ## END
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| 285 |
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| 286 |
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| 287 | #### argv array and @P @Q @a
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| 288 | $SH -c 'echo ${@@P}' dummy a b c
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| 289 | echo status=$?
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| 290 | $SH -c 'echo ${@@Q}' dummy a 'b\nc'
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| 291 | echo status=$?
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| 292 | $SH -c 'echo ${@@a}' dummy a b c
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| 293 | echo status=$?
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| 294 | ## STDOUT:
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| 295 | a b c
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| 296 | status=0
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| 297 | 'a' 'b\nc'
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| 298 | status=0
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| 299 |
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| 300 | status=0
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| 301 | ## END
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| 302 | ## OK osh STDOUT:
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| 303 | a b c
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| 304 | status=0
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| 305 | a $'b\\nc'
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| 306 | status=0
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| 307 | a a a
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| 308 | status=0
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| 309 | ## END
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| 310 |
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| 311 | #### assoc array and @P @Q @a
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| 312 |
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| 313 | # note: "y z" causes a bug!
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| 314 | $SH -c 'declare -A A=(["x"]="y"); echo ${A@P} - ${A[@]@P}'
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| 315 | echo status=$?
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| 316 |
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| 317 | # note: "y z" causes a bug!
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| 318 | $SH -c 'declare -A A=(["x"]="y"); echo ${A@Q} - ${A[@]@Q}' | sed 's/^- y$/- '\''y'\''/'
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| 319 | echo status=$?
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| 320 |
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| 321 | $SH -c 'declare -A A=(["x"]=y); echo ${A@a} - ${A[@]@a}'
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| 322 | echo status=$?
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| 323 | ## STDOUT:
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| 324 | - y
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| 325 | status=0
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| 326 | - 'y'
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| 327 | status=0
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| 328 | A - A
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| 329 | status=0
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| 330 | ## END
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| 331 |
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| 332 | #### ${!var[@]@X}
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| 333 | # note: "y z" causes a bug!
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| 334 | $SH -c 'declare -A A=(["x"]="y"); echo ${!A[@]@P}'
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| 335 | if test $? -ne 0; then echo fail; fi
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| 336 |
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| 337 | # note: "y z" causes a bug!
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| 338 | $SH -c 'declare -A A=(["x y"]="y"); echo ${!A[@]@Q}'
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| 339 | if test $? -ne 0; then echo fail; fi
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| 340 |
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| 341 | $SH -c 'declare -A A=(["x"]=y); echo ${!A[@]@a}'
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| 342 | if test $? -ne 0; then echo fail; fi
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| 343 | # STDOUT:
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| 344 |
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| 345 |
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| 346 |
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| 347 | # END
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| 348 | ## OK osh STDOUT:
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| 349 | fail
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| 350 | 'x y'
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| 351 | a
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| 352 | ## END
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| 353 |
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| 354 | #### ${#var@X} is a parse error
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| 355 | # note: "y z" causes a bug!
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| 356 | $SH -c 'declare -A A=(["x"]="y"); echo ${#A[@]@P}'
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| 357 | if test $? -ne 0; then echo fail; fi
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| 358 |
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| 359 | # note: "y z" causes a bug!
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| 360 | $SH -c 'declare -A A=(["x"]="y"); echo ${#A[@]@Q}'
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| 361 | if test $? -ne 0; then echo fail; fi
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| 362 |
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| 363 | $SH -c 'declare -A A=(["x"]=y); echo ${#A[@]@a}'
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| 364 | if test $? -ne 0; then echo fail; fi
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| 365 | ## STDOUT:
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| 366 | fail
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| 367 | fail
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| 368 | fail
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| 369 | ## END
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| 370 |
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| 371 | #### ${!A@a} and ${!A[@]@a}
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| 372 | declare -A A=(["x"]=y)
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| 373 | echo x=${!A[@]@a}
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| 374 | echo invalid=${!A@a}
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| 375 |
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| 376 | # OSH prints 'a' for indexed array because the AssocArray with ! turns into
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| 377 | # it. Disallowing it would be the other reasonable behavior.
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| 378 |
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| 379 | ## status: 1
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| 380 | ## STDOUT:
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| 381 | x=
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| 382 | ## END
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| 383 |
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| 384 | # Bash succeeds with ${!A@a}, which references the variable named as $A (i.e.,
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| 385 | # ''). This must be a Bash bug since the behavior is inconsistent with the
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| 386 | # fact that ${!undef@a} and ${!empty@a} fail.
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| 387 |
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| 388 | ## BUG bash status: 0
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| 389 | ## BUG bash STDOUT:
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| 390 | x=
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| 391 | invalid=
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| 392 | ## END
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| 393 |
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| 394 | #### undef vs. empty string in var ops
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| 395 |
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| 396 | empty=''
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| 397 | x=x
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| 398 |
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| 399 | echo ${x@Q} ${empty@Q} ${undef@Q} ${x@Q}
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| 400 |
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| 401 | echo ${x@K} ${empty@K} ${undef@K} ${x@K}
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| 402 |
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| 403 | echo ${x@k} ${empty@k} ${undef@k} ${x@k}
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| 404 |
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| 405 | echo ${x@A} ${empty@A} ${undef@A} ${x@A}
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| 406 |
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| 407 | declare -r x
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| 408 | echo ${x@a} ${empty@a} ${undef@a} ${x@a}
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| 409 |
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| 410 | # x x
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| 411 | #echo ${x@E} ${empty@E} ${undef@E} ${x@E}
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| 412 | # x x
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| 413 | #echo ${x@P} ${empty@P} ${undef@P} ${x@P}
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| 414 |
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| 415 | ## STDOUT:
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| 416 | 'x' '' 'x'
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| 417 | 'x' '' 'x'
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| 418 | 'x' '' 'x'
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| 419 | x='x' empty='' x='x'
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| 420 | r r
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| 421 | ## END
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| 422 |
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| 423 | #### -o nounset with var ops
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| 424 |
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| 425 | set -u
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| 426 | (echo ${undef@Q}); echo "stat: $?"
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| 427 | (echo ${undef@P}); echo "stat: $?"
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| 428 | (echo ${undef@a}); echo "stat: $?"
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| 429 |
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| 430 | ## STDOUT:
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| 431 | stat: 1
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| 432 | stat: 1
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| 433 | stat: 1
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| 434 | ## END
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| 435 |
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| 436 |
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| 437 | #### ${a[0]@a} and ${a@a}
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| 438 |
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| 439 | a=(1 2 3)
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| 440 | echo "attr = '${a[0]@a}'"
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| 441 | echo "attr = '${a@a}'"
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| 442 |
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| 443 | ## STDOUT:
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| 444 | attr = 'a'
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| 445 | attr = 'a'
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| 446 | ## END
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| 447 |
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| 448 |
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| 449 | #### ${!r@a} with r='a[0]' (attribute for indirect expansion of an array element)
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| 450 |
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| 451 | a=(1 2 3)
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| 452 | r='a'
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| 453 | echo ${!r@a}
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| 454 | r='a[0]'
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| 455 | echo ${!r@a}
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| 456 |
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| 457 | declare -A d=([0]=foo [1]=bar)
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| 458 | r='d'
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| 459 | echo ${!r@a}
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| 460 | r='d[0]'
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| 461 | echo ${!r@a}
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| 462 |
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| 463 | ## STDOUT:
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| 464 | a
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| 465 | a
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| 466 | A
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| 467 | A
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| 468 | ## END
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| 469 |
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| 470 |
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| 471 | #### Array expansion with nullary var ops
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| 472 |
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| 473 | declare -a a=({1..9})
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| 474 | declare -A A=(['a']=hello ['b']=world ['c']=osh ['d']=ysh)
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| 475 |
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| 476 | echo "@Q"
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| 477 | argv.py "${a[@]@Q}"
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| 478 | argv.py "${a[*]@Q}"
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| 479 | argv.py "${A[@]@Q}"
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| 480 | argv.py "${A[*]@Q}"
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| 481 | argv.py "${u[@]@Q}"
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| 482 | argv.py "${u[*]@Q}"
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| 483 |
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| 484 | echo "@P"
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| 485 | argv.py "${a[@]@P}"
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| 486 | argv.py "${a[*]@P}"
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| 487 | argv.py "${A[@]@P}"
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| 488 | argv.py "${A[*]@P}"
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| 489 | argv.py "${u[@]@P}"
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| 490 | argv.py "${u[*]@P}"
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| 491 |
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| 492 | echo "@a"
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| 493 | argv.py "${a[@]@a}"
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| 494 | argv.py "${a[*]@a}"
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| 495 | argv.py "${A[@]@a}"
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| 496 | argv.py "${A[*]@a}"
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| 497 | argv.py "${u[@]@a}"
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| 498 | argv.py "${u[*]@a}"
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| 499 |
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| 500 | ## STDOUT:
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| 501 | @Q
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| 502 | ['1', '2', '3', '4', '5', '6', '7', '8', '9']
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| 503 | ['1 2 3 4 5 6 7 8 9']
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| 504 | ['hello', 'world', 'osh', 'ysh']
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| 505 | ['hello world osh ysh']
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| 506 | []
|
| 507 | ['']
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| 508 | @P
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| 509 | ['1', '2', '3', '4', '5', '6', '7', '8', '9']
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| 510 | ['1 2 3 4 5 6 7 8 9']
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| 511 | ['hello', 'world', 'osh', 'ysh']
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| 512 | ['hello world osh ysh']
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| 513 | []
|
| 514 | ['']
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| 515 | @a
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| 516 | ['a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a']
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| 517 | ['a a a a a a a a a']
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| 518 | ['A', 'A', 'A', 'A']
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| 519 | ['A A A A']
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| 520 | []
|
| 521 | ['']
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| 522 | ## END
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| 523 |
|
| 524 | ## OK bash STDOUT:
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| 525 | @Q
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| 526 | ["'1'", "'2'", "'3'", "'4'", "'5'", "'6'", "'7'", "'8'", "'9'"]
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| 527 | ["'1' '2' '3' '4' '5' '6' '7' '8' '9'"]
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| 528 | ["'ysh'", "'osh'", "'world'", "'hello'"]
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| 529 | ["'ysh' 'osh' 'world' 'hello'"]
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| 530 | []
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| 531 | ['']
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| 532 | @P
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| 533 | ['1', '2', '3', '4', '5', '6', '7', '8', '9']
|
| 534 | ['1 2 3 4 5 6 7 8 9']
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| 535 | ['ysh', 'osh', 'world', 'hello']
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| 536 | ['ysh osh world hello']
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| 537 | []
|
| 538 | ['']
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| 539 | @a
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| 540 | ['a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a']
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| 541 | ['a a a a a a a a a']
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| 542 | ['A', 'A', 'A', 'A']
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| 543 | ['A A A A']
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| 544 | []
|
| 545 | ['']
|
| 546 | ## END
|