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