1	#!/usr/bin/env bash
2
3	#### Env value doesn't persist
4	FOO=foo printenv.py FOO
5	echo [$FOO]
6	## STDOUT:
7	foo
8	[]
9	## END
10
11	#### Env value with equals
12	FOO=foo=foo printenv.py FOO
13	## stdout: foo=foo
14
15	#### Env binding can use preceding bindings, but not subsequent ones
16	# This means that for ASSIGNMENT_WORD, on the RHS you invoke the parser again!
17	# Could be any kind of quoted string.
18	FOO="foo" BAR="[$FOO][$BAZ]" BAZ=baz printenv.py FOO BAR BAZ
19	## STDOUT:
20	foo
21	[foo][]
22	baz
23	## BUG mksh STDOUT:
24	foo
25	[][]
26	baz
27	## END
28
29	#### Env value with two quotes
30	FOO='foo'"adjacent" printenv.py FOO
31	## stdout: fooadjacent
32
33	#### Env value with escaped <
34	FOO=foo\<foo printenv.py FOO
35	## stdout: foo<foo
36
37	#### FOO=foo echo [foo]
38	FOO=foo echo "[$foo]"
39	## stdout: []
40
41	#### FOO=foo func
42	func() {
43	echo "[$FOO]"
44	}
45	FOO=foo func
46	## stdout: [foo]
47
48	#### Multiple temporary envs on the stack
49	g() {
50	echo "$F" "$G1" "$G2"
51	echo '--- g() ---'
52	P=p printenv.py F G1 G2 A P
53	}
54	f() {
55	# NOTE: G1 doesn't pick up binding f, but G2 picks up a.
56	# I don't quite understand why this is, but bash and OSH agree!
57	G1=[$f] G2=[$a] g
58	echo '--- f() ---'
59	printenv.py F G1 G2 A P
60	}
61	a=A
62	F=f f
63	## STDOUT:
64	f [] [A]
65	--- g() ---
66	f
67	[]
68	[A]
69	None
70	p
71	--- f() ---
72	f
73	None
74	None
75	None
76	None
77	## END
78	## OK mksh STDOUT:
79	# G1 and G2 somehow persist. I think that is a bug. They should be local to
80	# the G call.
81	f [] [A]
82	--- g() ---
83	f
84	[]
85	[A]
86	None
87	p
88	--- f() ---
89	f
90	[]
91	[A]
92	None
93	None
94	## END
95	## BUG dash STDOUT:
96	# dash sets even less stuff. Doesn't appear correct.
97	f [] [A]
98	--- g() ---
99	None
100	None
101	None
102	None
103	p
104	--- f() ---
105	None
106	None
107	None
108	None
109	None
110	## END
111
112	#### Escaped = in command name
113	# foo=bar is in the 'spec/bin' dir.
114	foo\=bar
115	## stdout: HI
116
117	#### Env binding not allowed before compound command
118	# bash gives exit code 2 for syntax error, because of 'do'.
119	# dash gives 0 because there is stuff after for? Should really give an error.
120	# mksh gives acceptable error of 1.
121	FOO=bar for i in a b; do printenv.py $FOO; done
122	## BUG dash status: 0
123	## OK mksh status: 1
124	## status: 2
125
126	#### Trying to run keyword 'for'
127	FOO=bar for
128	## status: 127
129
130	#### Empty env binding
131	EMPTY= printenv.py EMPTY
132	## stdout:
133
134	#### Assignment doesn't do word splitting
135	words='one two'
136	a=$words
137	argv.py "$a"
138	## stdout: ['one two']
139
140	#### Assignment doesn't do glob expansion
141	touch _tmp/z.Z _tmp/zz.Z
142	a=_tmp/*.Z
143	argv.py "$a"
144	## stdout: ['_tmp/*.Z']
145
146	#### Env binding in readonly/declare disallowed
147	# I'm disallowing this in the oil shell, because it doesn't work in bash!
148	# (v=None vs v=foo)
149	# assert status 2 for parse error, but allow stdout v=None/status 0 for
150	# existing implementations.
151	FOO=foo readonly v=$(printenv.py FOO)
152	echo "v=$v"
153	## OK bash/dash/mksh stdout: v=None
154	## OK bash/dash/mksh status: 0
155	## status: 2
156
157	#### local -a
158	# nixpkgs setup.sh uses this (issue #26)
159	f() {
160	local -a array=(x y z)
161	argv.py "${array[@]}"
162	}
163	f
164	## stdout: ['x', 'y', 'z']
165	## N-I dash stdout-json: ""
166	## N-I dash status: 2
167	## N-I mksh stdout-json: ""
168	## N-I mksh status: 1
169
170	#### declare -a
171	# nixpkgs setup.sh uses this (issue #26)
172	declare -a array=(x y z)
173	argv.py "${array[@]}"
174	## stdout: ['x', 'y', 'z']
175	## N-I dash stdout-json: ""
176	## N-I dash status: 2
177	## N-I mksh stdout-json: ""
178	## N-I mksh status: 1
179
180	#### typeset -a a[1]=a a[3]=c
181	# declare works the same way in bash, but not mksh.
182	# spaces are NOT allowed here.
183	typeset -a a[1*1]=x a[1+2]=z
184	argv.py "${a[@]}"
185	## stdout: ['x', 'z']
186	## N-I dash stdout-json: ""
187	## N-I dash status: 2
188
189	#### indexed LHS without spaces is allowed
190	a[1 * 1]=x a[ 1 + 2 ]=z
191	argv.py "${a[@]}"
192	## stdout: ['x', 'z']
193	## N-I dash stdout-json: ""
194	## N-I dash status: 2
195
196	#### declare -f exit code indicates function existence
197	func2=x # var names are NOT found
198	declare -f myfunc func2
199	echo $?
200
201	myfunc() { echo myfunc; }
202	# This prints the source code.
203	declare -f myfunc func2 > /dev/null
204	echo $?
205
206	func2() { echo func2; }
207	declare -f myfunc func2 > /dev/null
208	echo $?
209	## STDOUT:
210	1
211	1
212	0
213	## END
214	## N-I dash/mksh STDOUT:
215	127
216	127
217	127
218	## END
219
220	#### declare -F prints function names
221	add () { expr 4 + 4; }
222	div () { expr 6 / 2; }
223	ek () { echo hello; }
224	__ec () { echo hi; }
225	_ab () { expr 10 % 3; }
226
227	declare -F
228	## STDOUT:
229	declare -f __ec
230	declare -f _ab
231	declare -f add
232	declare -f div
233	declare -f ek
234	## END
235	## N-I dash/mksh stdout-json: ""
236	## N-I dash/mksh status: 127
237
238	#### declare -p
239	var1() { echo func; } # function names are NOT found.
240	declare -p var1 var2 >/dev/null
241	echo $?
242
243	var1=x
244	declare -p var1 var2 >/dev/null
245	echo $?
246
247	var2=y
248	declare -p var1 var2 >/dev/null
249	echo $?
250	## STDOUT:
251	1
252	1
253	0
254	## N-I dash/mksh STDOUT:
255	127
256	127
257	127
258	## END
259
260	#### typeset -f
261	# mksh implement typeset but not declare
262	typeset -f myfunc func2
263	echo $?
264
265	myfunc() { echo myfunc; }
266	# This prints the source code.
267	typeset -f myfunc func2 > /dev/null
268	echo $?
269
270	func2() { echo func2; }
271	typeset -f myfunc func2 > /dev/null
272	echo $?
273	## STDOUT:
274	1
275	1
276	0
277	## END
278	## N-I dash STDOUT:
279	127
280	127
281	127
282	## END
283
284	#### typeset -p
285	var1() { echo func; } # function names are NOT found.
286	typeset -p var1 var2 >/dev/null
287	echo $?
288
289	var1=x
290	typeset -p var1 var2 >/dev/null
291	echo $?
292
293	var2=y
294	typeset -p var1 var2 >/dev/null
295	echo $?
296	## STDOUT:
297	1
298	1
299	0
300	## BUG mksh STDOUT:
301	# mksh doesn't respect exit codes
302	0
303	0
304	0
305	## END
306	## N-I dash STDOUT:
307	127
308	127
309	127
310	## END
311
312	#### typeset -r makes a string readonly
313	typeset -r s1='12'
314	typeset -r s2='34'
315
316	s1='c'
317	echo status=$?
318	s2='d'
319	echo status=$?
320
321	s1+='e'
322	echo status=$?
323	s2+='f'
324	echo status=$?
325
326	unset s1
327	echo status=$?
328	unset s2
329	echo status=$?
330
331	## status: 1
332	## stdout-json: ""
333	## OK mksh status: 2
334	## OK bash status: 0
335	## OK bash STDOUT:
336	status=1
337	status=1
338	status=1
339	status=1
340	status=1
341	status=1
342	## END
343	## OK dash status: 0
344	## N-I dash STDOUT:
345	status=0
346	status=0
347	status=127
348	status=127
349	status=0
350	status=0
351	## END
352
353	#### typeset -ar makes it readonly
354	typeset -a -r array1=(1 2)
355	typeset -ar array2=(3 4)
356
357	array1=('c')
358	echo status=$?
359	array2=('d')
360	echo status=$?
361
362	array1+=('e')
363	echo status=$?
364	array2+=('f')
365	echo status=$?
366
367	unset array1
368	echo status=$?
369	unset array2
370	echo status=$?
371
372	## status: 1
373	## stdout-json: ""
374	## OK bash status: 0
375	## OK bash STDOUT:
376	status=1
377	status=1
378	status=1
379	status=1
380	status=1
381	status=1
382	## END
383	## N-I dash status: 2
384	## N-I dash stdout-json: ""
385	## N-I mksh status: 1
386	## N-I mksh stdout-json: ""
387
388	#### typeset -x makes it exported
389	typeset -rx PYTHONPATH=lib/
390	printenv.py PYTHONPATH
391	## STDOUT:
392	lib/
393	## END
394	## N-I dash stdout: None
395
396	#### Multiple assignments / array assignments on a line
397	a=1 b[0+0]=2 c=3
398	echo $a $b $c
399	## stdout: 1 2 3
400	## N-I dash stdout:
401
402	#### assignments / array assignments not interpreted after 'echo'
403	a=1 echo b[0]=2 c=3
404	## stdout: b[0]=2 c=3
405
406	#### Env bindings shouldn't contain array assignments
407	a=1 b[0]=2 c=3 printenv.py a b c
408	## status: 2
409	## stdout-json: ""
410	## OK bash STDOUT:
411	1
412	None
413	3
414	## END
415	## OK bash status: 0
416	## BUG mksh STDOUT:
417	1
418	2
419	3
420	## END
421	## OK mksh status: 0
422	## N-I dash stdout-json: ""
423	## N-I dash status: 127
424
425	#### syntax error in array assignment
426	a=x b[0+]=y c=z
427	echo $a $b $c
428	## status: 2
429	## stdout-json: ""
430	## BUG bash stdout: x
431	## BUG bash status: 0
432	## OK mksh stdout-json: ""
433	## OK mksh status: 1
434	## N-I dash stdout:
435	## N-I dash status: 0
436
437	#### dynamic local variables
438	f() {
439	local "$1" # Only x is assigned here
440	echo [$x]
441	echo [$a]
442
443	local $1 # x and a are assigned here
444	echo [$x]
445	echo [$a]
446	}
447	f 'x=y a=b'
448	## STDOUT:
449	[y a=b]
450	[]
451	[y]
452	[b]
453	## END
454
455	#### 'local x' does not set variable
456	set -o nounset
457	f() {
458	local x
459	echo $x
460	}
461	f
462	## status: 1
463	## OK dash status: 2
464
465	#### 'local -a x' does not set variable
466	set -o nounset
467	f() {
468	local -a x
469	echo $x
470	}
471	f
472	## status: 1
473	## OK dash status: 2
474
475	#### 'local x' and then array assignment
476	f() {
477	local x
478	x[3]=foo
479	echo ${x[3]}
480	}
481	f
482	## status: 0
483	## stdout: foo
484	## N-I dash status: 2
485	## N-I dash stdout-json: ""
486
487	#### 'declare -A' and then dict assignment
488	declare -A foo
489	key=bar
490	foo["$key"]=value
491	echo ${foo["bar"]}
492	## status: 0
493	## stdout: value
494	## N-I dash status: 2
495	## N-I dash stdout-json: ""
496	## N-I mksh status: 1
497	## N-I mksh stdout-json: ""
498
499	#### declare -g (bash-specific; bash-completion uses it)
500	f() {
501	declare -g G=42
502	declare L=99
503
504	declare -Ag dict
505	dict["foo"]=bar
506
507	declare -A localdict
508	localdict["spam"]=Eggs
509
510	# For bash-completion
511	eval 'declare -Ag ev'
512	ev["ev1"]=ev2
513	}
514	f
515	argv.py "$G" "$L"
516	argv.py "${dict["foo"]}" "${localdict["spam"]}"
517	argv.py "${ev["ev1"]}"
518	## STDOUT:
519	['42', '']
520	['bar', '']
521	['ev2']
522	## END
523	## N-I dash STDOUT:
524	['', '']
525
526	## END
527	## N-I dash status: 2
528	## N-I mksh STDOUT:
529	['', '']
530
531	## END
532	## N-I mksh status: 1
533
534	#### declare in an if statement
535	# bug caught by my feature detection snippet in bash-completion
536	if ! foo=bar; then
537	echo BAD
538	fi
539	echo $foo
540	if ! eval 'spam=eggs'; then
541	echo BAD
542	fi
543	echo $spam
544	## STDOUT:
545	bar
546	eggs
547	## END
548