| 1 | |
| 2 | #### Env value doesn't persist |
| 3 | FOO=foo printenv.py FOO |
| 4 | echo -$FOO- |
| 5 | ## STDOUT: |
| 6 | foo |
| 7 | -- |
| 8 | ## END |
| 9 | |
| 10 | #### Env value with equals |
| 11 | FOO=foo=foo printenv.py FOO |
| 12 | ## stdout: foo=foo |
| 13 | |
| 14 | #### Env binding can use preceding bindings, but not subsequent ones |
| 15 | # This means that for ASSIGNMENT_WORD, on the RHS you invoke the parser again! |
| 16 | # Could be any kind of quoted string. |
| 17 | FOO="foo" BAR="[$FOO][$BAZ]" BAZ=baz printenv.py FOO BAR BAZ |
| 18 | ## STDOUT: |
| 19 | foo |
| 20 | [foo][] |
| 21 | baz |
| 22 | ## BUG mksh STDOUT: |
| 23 | foo |
| 24 | [][] |
| 25 | baz |
| 26 | ## END |
| 27 | |
| 28 | #### Env value with two quotes |
| 29 | FOO='foo'"adjacent" printenv.py FOO |
| 30 | ## stdout: fooadjacent |
| 31 | |
| 32 | #### Env value with escaped < |
| 33 | FOO=foo\<foo printenv.py FOO |
| 34 | ## stdout: foo<foo |
| 35 | |
| 36 | #### FOO=foo echo [foo] |
| 37 | FOO=foo echo "[$foo]" |
| 38 | ## stdout: [] |
| 39 | |
| 40 | #### FOO=foo fun |
| 41 | fun() { |
| 42 | echo "[$FOO]" |
| 43 | } |
| 44 | FOO=foo fun |
| 45 | ## stdout: [foo] |
| 46 | |
| 47 | #### Multiple temporary envs on the stack |
| 48 | g() { |
| 49 | echo "$F" "$G1" "$G2" |
| 50 | echo '--- g() ---' |
| 51 | P=p printenv.py F G1 G2 A P |
| 52 | } |
| 53 | f() { |
| 54 | # NOTE: G1 doesn't pick up binding f, but G2 picks up a. |
| 55 | # I don't quite understand why this is, but bash and OSH agree! |
| 56 | G1=[$f] G2=[$a] g |
| 57 | echo '--- f() ---' |
| 58 | printenv.py F G1 G2 A P |
| 59 | } |
| 60 | a=A |
| 61 | F=f f |
| 62 | ## STDOUT: |
| 63 | f [] [A] |
| 64 | --- g() --- |
| 65 | f |
| 66 | [] |
| 67 | [A] |
| 68 | None |
| 69 | p |
| 70 | --- f() --- |
| 71 | f |
| 72 | None |
| 73 | None |
| 74 | None |
| 75 | None |
| 76 | ## END |
| 77 | ## OK mksh STDOUT: |
| 78 | # G1 and G2 somehow persist. I think that is a bug. They should be local to |
| 79 | # the G call. |
| 80 | f [] [A] |
| 81 | --- g() --- |
| 82 | f |
| 83 | [] |
| 84 | [A] |
| 85 | None |
| 86 | p |
| 87 | --- f() --- |
| 88 | f |
| 89 | [] |
| 90 | [A] |
| 91 | None |
| 92 | None |
| 93 | ## END |
| 94 | ## BUG dash STDOUT: |
| 95 | # dash sets even less stuff. Doesn't appear correct. |
| 96 | f [] [A] |
| 97 | --- g() --- |
| 98 | None |
| 99 | None |
| 100 | None |
| 101 | None |
| 102 | p |
| 103 | --- f() --- |
| 104 | None |
| 105 | None |
| 106 | None |
| 107 | None |
| 108 | None |
| 109 | ## END |
| 110 | |
| 111 | #### Escaped = in command name |
| 112 | # foo=bar is in the 'spec/bin' dir. |
| 113 | foo\=bar |
| 114 | ## stdout: HI |
| 115 | |
| 116 | #### Env binding not allowed before compound command |
| 117 | # bash gives exit code 2 for syntax error, because of 'do'. |
| 118 | # dash gives 0 because there is stuff after for? Should really give an error. |
| 119 | # mksh gives acceptable error of 1. |
| 120 | FOO=bar for i in a b; do printenv.py $FOO; done |
| 121 | ## status: 2 |
| 122 | ## OK mksh/zsh status: 1 |
| 123 | |
| 124 | #### Trying to run keyword 'for' |
| 125 | FOO=bar for |
| 126 | ## status: 127 |
| 127 | ## OK zsh status: 1 |
| 128 | |
| 129 | #### Empty env binding |
| 130 | EMPTY= printenv.py EMPTY |
| 131 | ## stdout: |
| 132 | |
| 133 | #### Assignment doesn't do word splitting |
| 134 | words='one two' |
| 135 | a=$words |
| 136 | argv.py "$a" |
| 137 | ## stdout: ['one two'] |
| 138 | |
| 139 | #### Assignment doesn't do glob expansion |
| 140 | touch _tmp/z.Z _tmp/zz.Z |
| 141 | a=_tmp/*.Z |
| 142 | argv.py "$a" |
| 143 | ## stdout: ['_tmp/*.Z'] |
| 144 | |
| 145 | #### Env binding in readonly/declare is NOT exported! (pitfall) |
| 146 | |
| 147 | # All shells agree on this, but it's very confusing behavior. |
| 148 | FOO=foo readonly v=$(printenv.py FOO) |
| 149 | echo "v=$v" |
| 150 | |
| 151 | # bash has probems here: |
| 152 | FOO=foo readonly v2=$FOO |
| 153 | echo "v2=$v2" |
| 154 | |
| 155 | ## STDOUT: |
| 156 | v=None |
| 157 | v2=foo |
| 158 | ## END |
| 159 | ## BUG bash STDOUT: |
| 160 | v=None |
| 161 | v2= |
| 162 | ## END |
| 163 | |
| 164 | #### assignments / array assignments not interpreted after 'echo' |
| 165 | a=1 echo b[0]=2 c=3 |
| 166 | ## stdout: b[0]=2 c=3 |
| 167 | # zsh interprets [0] as some kind of glob |
| 168 | ## OK zsh stdout-json: "" |
| 169 | ## OK zsh status: 1 |
| 170 | |
| 171 | #### dynamic local variables (and splitting) |
| 172 | f() { |
| 173 | local "$1" # Only x is assigned here |
| 174 | echo x=\'$x\' |
| 175 | echo a=\'$a\' |
| 176 | |
| 177 | local $1 # x and a are assigned here |
| 178 | echo x=\'$x\' |
| 179 | echo a=\'$a\' |
| 180 | } |
| 181 | f 'x=y a=b' |
| 182 | ## OK dash/bash/mksh STDOUT: |
| 183 | x='y a=b' |
| 184 | a='' |
| 185 | x='y' |
| 186 | a='b' |
| 187 | ## END |
| 188 | # osh and zsh don't do word splitting |
| 189 | ## STDOUT: |
| 190 | x='y a=b' |
| 191 | a='' |
| 192 | x='y a=b' |
| 193 | a='' |
| 194 | ## END |
| 195 | |
| 196 | #### readonly x= gives empty string (regression) |
| 197 | readonly x= |
| 198 | argv.py "$x" |
| 199 | ## STDOUT: |
| 200 | [''] |
| 201 | ## END |
| 202 | |
| 203 | #### 'local x' does not set variable |
| 204 | set -o nounset |
| 205 | f() { |
| 206 | local x |
| 207 | echo $x |
| 208 | } |
| 209 | f |
| 210 | ## status: 1 |
| 211 | ## OK dash status: 2 |
| 212 | ## BUG zsh status: 0 |
| 213 | |
| 214 | #### 'local -a x' does not set variable |
| 215 | set -o nounset |
| 216 | f() { |
| 217 | local -a x |
| 218 | echo $x |
| 219 | } |
| 220 | f |
| 221 | ## status: 1 |
| 222 | ## OK dash status: 2 |
| 223 | ## BUG zsh status: 0 |
| 224 | |
| 225 | #### 'local x' and then array assignment |
| 226 | f() { |
| 227 | local x |
| 228 | x[3]=foo |
| 229 | echo ${x[3]} |
| 230 | } |
| 231 | f |
| 232 | ## status: 0 |
| 233 | ## stdout: foo |
| 234 | ## N-I dash status: 2 |
| 235 | ## N-I dash stdout-json: "" |
| 236 | ## BUG zsh stdout: o |
| 237 | |
| 238 | #### 'declare -A' and then dict assignment |
| 239 | declare -A foo |
| 240 | key=bar |
| 241 | foo["$key"]=value |
| 242 | echo ${foo["bar"]} |
| 243 | ## status: 0 |
| 244 | ## stdout: value |
| 245 | ## N-I dash status: 2 |
| 246 | ## N-I dash stdout-json: "" |
| 247 | ## N-I mksh status: 1 |
| 248 | ## N-I mksh stdout-json: "" |
| 249 | |
| 250 | #### declare in an if statement |
| 251 | # bug caught by my feature detection snippet in bash-completion |
| 252 | if ! foo=bar; then |
| 253 | echo BAD |
| 254 | fi |
| 255 | echo $foo |
| 256 | if ! eval 'spam=eggs'; then |
| 257 | echo BAD |
| 258 | fi |
| 259 | echo $spam |
| 260 | ## STDOUT: |
| 261 | bar |
| 262 | eggs |
| 263 | ## END |
| 264 | |
| 265 | |
| 266 | #### Modify a temporary binding |
| 267 | # (regression for bug found by Michael Greenberg) |
| 268 | f() { |
| 269 | echo "x before = $x" |
| 270 | x=$((x+1)) |
| 271 | echo "x after = $x" |
| 272 | } |
| 273 | x=5 f |
| 274 | ## STDOUT: |
| 275 | x before = 5 |
| 276 | x after = 6 |
| 277 | ## END |
| 278 | |
| 279 | #### Reveal existence of "temp frame" (All shells disagree here!!!) |
| 280 | f() { |
| 281 | echo "x=$x" |
| 282 | |
| 283 | x=mutated-temp # mutate temp frame |
| 284 | echo "x=$x" |
| 285 | |
| 286 | # Declare a new local |
| 287 | local x='local' |
| 288 | echo "x=$x" |
| 289 | |
| 290 | # Unset it |
| 291 | unset x |
| 292 | echo "x=$x" |
| 293 | } |
| 294 | |
| 295 | x=global |
| 296 | x=temp-binding f |
| 297 | echo "x=$x" |
| 298 | |
| 299 | ## STDOUT: |
| 300 | x=temp-binding |
| 301 | x=mutated-temp |
| 302 | x=local |
| 303 | x=mutated-temp |
| 304 | x=global |
| 305 | ## END |
| 306 | ## OK dash/zsh STDOUT: |
| 307 | x=temp-binding |
| 308 | x=mutated-temp |
| 309 | x=local |
| 310 | x= |
| 311 | x=global |
| 312 | ## END |
| 313 | ## BUG bash STDOUT: |
| 314 | x=temp-binding |
| 315 | x=mutated-temp |
| 316 | x=local |
| 317 | x=global |
| 318 | x=global |
| 319 | ## END |
| 320 | ## BUG mksh STDOUT: |
| 321 | x=temp-binding |
| 322 | x=mutated-temp |
| 323 | x=local |
| 324 | x=mutated-temp |
| 325 | x=mutated-temp |
| 326 | ## END |
| 327 | ## BUG yash STDOUT: |
| 328 | # yash has no locals |
| 329 | x=temp-binding |
| 330 | x=mutated-temp |
| 331 | x=mutated-temp |
| 332 | x= |
| 333 | x= |
| 334 | ## END |
| 335 | |
| 336 | #### Test above without 'local' (which is not POSIX) |
| 337 | f() { |
| 338 | echo "x=$x" |
| 339 | |
| 340 | x=mutated-temp # mutate temp frame |
| 341 | echo "x=$x" |
| 342 | |
| 343 | # Unset it |
| 344 | unset x |
| 345 | echo "x=$x" |
| 346 | } |
| 347 | |
| 348 | x=global |
| 349 | x=temp-binding f |
| 350 | echo "x=$x" |
| 351 | |
| 352 | ## OK dash/zsh STDOUT: |
| 353 | x=temp-binding |
| 354 | x=mutated-temp |
| 355 | x= |
| 356 | x=global |
| 357 | ## END |
| 358 | ## BUG mksh/yash STDOUT: |
| 359 | x=temp-binding |
| 360 | x=mutated-temp |
| 361 | x= |
| 362 | x= |
| 363 | ## END |
| 364 | ## STDOUT: |
| 365 | x=temp-binding |
| 366 | x=mutated-temp |
| 367 | x=global |
| 368 | x=global |
| 369 | ## END |
| 370 | |
| 371 | #### Using ${x-default} after unsetting local shadowing a global |
| 372 | f() { |
| 373 | echo "x=$x" |
| 374 | local x='local' |
| 375 | echo "x=$x" |
| 376 | unset x |
| 377 | echo "- operator = ${x-default}" |
| 378 | echo ":- operator = ${x:-default}" |
| 379 | } |
| 380 | x=global |
| 381 | f |
| 382 | ## OK dash/bash/zsh STDOUT: |
| 383 | x=global |
| 384 | x=local |
| 385 | - operator = default |
| 386 | :- operator = default |
| 387 | ## END |
| 388 | ## STDOUT: |
| 389 | x=global |
| 390 | x=local |
| 391 | - operator = global |
| 392 | :- operator = global |
| 393 | ## END |
| 394 | |
| 395 | #### Using ${x-default} after unsetting a temp binding shadowing a global |
| 396 | f() { |
| 397 | echo "x=$x" |
| 398 | local x='local' |
| 399 | echo "x=$x" |
| 400 | unset x |
| 401 | echo "- operator = ${x-default}" |
| 402 | echo ":- operator = ${x:-default}" |
| 403 | } |
| 404 | x=global |
| 405 | x=temp-binding f |
| 406 | ## OK dash/zsh STDOUT: |
| 407 | x=temp-binding |
| 408 | x=local |
| 409 | - operator = default |
| 410 | :- operator = default |
| 411 | ## END |
| 412 | ## STDOUT: |
| 413 | x=temp-binding |
| 414 | x=local |
| 415 | - operator = temp-binding |
| 416 | :- operator = temp-binding |
| 417 | ## END |
| 418 | ## BUG bash STDOUT: |
| 419 | x=temp-binding |
| 420 | x=local |
| 421 | - operator = global |
| 422 | :- operator = global |
| 423 | ## END |
| 424 | |
| 425 | #### static assignment doesn't split |
| 426 | words='a b c' |
| 427 | export ex=$words |
| 428 | glo=$words |
| 429 | readonly ro=$words |
| 430 | argv.py "$ex" "$glo" "$ro" |
| 431 | |
| 432 | ## STDOUT: |
| 433 | ['a b c', 'a b c', 'a b c'] |
| 434 | ## END |
| 435 | ## BUG dash STDOUT: |
| 436 | ['a', 'a b c', 'a'] |
| 437 | ## END |
| 438 | |
| 439 | |
| 440 | #### aliased assignment doesn't split |
| 441 | shopt -s expand_aliases || true |
| 442 | words='a b c' |
| 443 | alias e=export |
| 444 | alias r=readonly |
| 445 | e ex=$words |
| 446 | r ro=$words |
| 447 | argv.py "$ex" "$ro" |
| 448 | ## BUG dash STDOUT: |
| 449 | ['a', 'a'] |
| 450 | ## END |
| 451 | ## STDOUT: |
| 452 | ['a b c', 'a b c'] |
| 453 | ## END |
| 454 | |
| 455 | |
| 456 | #### assignment using dynamic keyword (splits in most shells, not in zsh/osh) |
| 457 | words='a b c' |
| 458 | e=export |
| 459 | r=readonly |
| 460 | $e ex=$words |
| 461 | $r ro=$words |
| 462 | argv.py "$ex" "$ro" |
| 463 | |
| 464 | # zsh and OSH are smart |
| 465 | ## STDOUT: |
| 466 | ['a b c', 'a b c'] |
| 467 | ## END |
| 468 | |
| 469 | ## OK dash/bash/mksh STDOUT: |
| 470 | ['a', 'a'] |
| 471 | ## END |
| 472 | |
| 473 | |
| 474 | #### assignment using dynamic var names doesn't split |
| 475 | words='a b c' |
| 476 | arg_ex=ex=$words |
| 477 | arg_ro=ro=$words |
| 478 | |
| 479 | # no quotes, this is split of course |
| 480 | export $arg_ex |
| 481 | readonly $arg_ro |
| 482 | |
| 483 | argv.py "$ex" "$ro" |
| 484 | |
| 485 | arg_ex2=ex2=$words |
| 486 | arg_ro2=ro2=$words |
| 487 | |
| 488 | # quotes, no splitting |
| 489 | export "$arg_ex2" |
| 490 | readonly "$arg_ro2" |
| 491 | |
| 492 | argv.py "$ex2" "$ro2" |
| 493 | |
| 494 | ## STDOUT: |
| 495 | ['a b c', 'a b c'] |
| 496 | ['a b c', 'a b c'] |
| 497 | ## END |
| 498 | ## OK dash/bash/mksh STDOUT: |
| 499 | ['a', 'a'] |
| 500 | ['a b c', 'a b c'] |
| 501 | ## END |
| 502 | |
| 503 | #### assign and glob |
| 504 | cd $TMP |
| 505 | touch foo=a foo=b |
| 506 | foo=* |
| 507 | argv.py "$foo" |
| 508 | unset foo |
| 509 | |
| 510 | export foo=* |
| 511 | argv.py "$foo" |
| 512 | unset foo |
| 513 | |
| 514 | ## STDOUT: |
| 515 | ['*'] |
| 516 | ['*'] |
| 517 | ## END |
| 518 | ## BUG dash STDOUT: |
| 519 | ['*'] |
| 520 | ['b'] |
| 521 | ## END |
| 522 | |
| 523 | #### declare and glob |
| 524 | cd $TMP |
| 525 | touch foo=a foo=b |
| 526 | typeset foo=* |
| 527 | argv.py "$foo" |
| 528 | unset foo |
| 529 | ## STDOUT: |
| 530 | ['*'] |
| 531 | ## END |
| 532 | ## N-I dash STDOUT: |
| 533 | [''] |
| 534 | ## END |
| 535 | |
| 536 | #### readonly $x where x='b c' |
| 537 | one=a |
| 538 | two='b c' |
| 539 | readonly $two $one |
| 540 | a=new |
| 541 | echo status=$? |
| 542 | b=new |
| 543 | echo status=$? |
| 544 | c=new |
| 545 | echo status=$? |
| 546 | |
| 547 | # in OSH and zsh, this is an invalid variable name |
| 548 | ## status: 1 |
| 549 | ## stdout-json: "" |
| 550 | |
| 551 | # most shells make two variable read-only |
| 552 | |
| 553 | ## OK dash/mksh status: 2 |
| 554 | ## OK bash status: 0 |
| 555 | ## OK bash STDOUT: |
| 556 | status=1 |
| 557 | status=1 |
| 558 | status=1 |
| 559 | ## END |
| 560 | |
| 561 | #### readonly a=(1 2) no_value c=(3 4) makes 'no_value' readonly |
| 562 | readonly a=(1 2) no_value c=(3 4) |
| 563 | no_value=x |
| 564 | ## status: 1 |
| 565 | ## stdout-json: "" |
| 566 | ## OK dash status: 2 |
| 567 | |
| 568 | #### export a=1 no_value c=2 |
| 569 | no_value=foo |
| 570 | export a=1 no_value c=2 |
| 571 | printenv.py no_value |
| 572 | ## STDOUT: |
| 573 | foo |
| 574 | ## END |
| 575 | |
| 576 | #### local a=loc $var c=loc |
| 577 | var='b' |
| 578 | b=global |
| 579 | echo $b |
| 580 | f() { |
| 581 | local a=loc $var c=loc |
| 582 | argv.py "$a" "$b" "$c" |
| 583 | } |
| 584 | f |
| 585 | ## STDOUT: |
| 586 | global |
| 587 | ['loc', '', 'loc'] |
| 588 | ## END |
| 589 | ## BUG dash STDOUT: |
| 590 | global |
| 591 | ['loc', 'global', 'loc'] |
| 592 | ## END |
| 593 | |
| 594 | #### redirect after assignment builtin (what's going on with dash/bash/mksh here?) |
| 595 | readonly x=$(stdout_stderr.py) 2>/dev/null |
| 596 | echo done |
| 597 | ## STDOUT: |
| 598 | done |
| 599 | ## END |
| 600 | ## STDERR: |
| 601 | STDERR |
| 602 | ## END |
| 603 | ## BUG zsh stderr-json: "" |
| 604 | |
| 605 | #### redirect after command sub (like case above but without assignment builtin) |
| 606 | echo stdout=$(stdout_stderr.py) 2>/dev/null |
| 607 | ## STDOUT: |
| 608 | stdout=STDOUT |
| 609 | ## END |
| 610 | ## STDERR: |
| 611 | STDERR |
| 612 | ## END |
| 613 | |
| 614 | #### redirect after bare assignment |
| 615 | x=$(stdout_stderr.py) 2>/dev/null |
| 616 | echo done |
| 617 | ## STDOUT: |
| 618 | done |
| 619 | ## END |
| 620 | ## stderr-json: "" |
| 621 | ## BUG bash STDERR: |
| 622 | STDERR |
| 623 | ## END |
| 624 | |
| 625 | #### redirect after declare -p |
| 626 | case $SH in *dash) exit 99 ;; esac # stderr unpredictable |
| 627 | |
| 628 | foo=bar |
| 629 | typeset -p foo 1>&2 |
| 630 | |
| 631 | # zsh and mksh agree on exact output, which we don't really care about |
| 632 | ## STDERR: |
| 633 | typeset foo=bar |
| 634 | ## END |
| 635 | ## OK bash STDERR: |
| 636 | declare -- foo="bar" |
| 637 | ## END |
| 638 | ## OK osh STDERR: |
| 639 | declare -- foo=bar |
| 640 | ## END |
| 641 | ## N-I dash status: 99 |
| 642 | ## N-I dash stderr-json: "" |
| 643 | ## stdout-json: "" |
| 644 | |
| 645 | #### declare -a arr does not remove existing arrays (OSH regression) |
| 646 | case $SH in (dash) exit 99;; esac # dash does not support arrays |
| 647 | |
| 648 | declare -a arr |
| 649 | arr=(foo bar baz) |
| 650 | declare -a arr |
| 651 | echo arr:${#arr[@]} |
| 652 | ## STDOUT: |
| 653 | arr:3 |
| 654 | ## END |
| 655 | ## N-I dash status: 99 |
| 656 | ## N-I dash stdout-json: "" |
| 657 | |
| 658 | #### declare -A dict does not remove existing arrays (OSH regression) |
| 659 | case $SH in (dash|mksh) exit 99;; esac # dash/mksh does not support associative arrays |
| 660 | |
| 661 | declare -A dict |
| 662 | dict['foo']=hello |
| 663 | dict['bar']=oil |
| 664 | dict['baz']=world |
| 665 | declare -A dict |
| 666 | echo dict:${#dict[@]} |
| 667 | ## STDOUT: |
| 668 | dict:3 |
| 669 | ## END |
| 670 | ## N-I dash/mksh status: 99 |
| 671 | ## N-I dash/mksh stdout-json: "" |
| 672 |