File: trip.rc

package info (click to toggle)
rc 1.7.4%2B97.gceb59bb-4
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 780 kB
  • sloc: ansic: 7,659; yacc: 136; sh: 133; makefile: 49; perl: 25; sed: 5
file content (737 lines) | stat: -rw-r--r-- 20,383 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
# trip.rc -- take a tour of rc
# Invoke as "path-to-new-rc < trip.rc"

rc=$0
echo tripping $rc $version

tmpdir=''
fn fail {
	echo >[1=2] trip took a wrong turn: $*
	rm -rf $tmpdir
	fn sigexit
	exit 1
}
fn expect {
	echo >[1=2] -n expect $^*^': '
}
fn submatch {
	if (!~ $#* 3)
		fail incorrect invocation of submatch
	got = `` $nl { prompt=$nl $rc -ic $1>[2=1] }
	if (!~ $got $2) {
		echo got $got expected $2
		fail $3
	}
}
fn sigexit sigint sigquit sigsegv
fn sigexit {
	echo trip complete
}
tmpdir=`{ mktemp -d -t rc-trip.XXXXXX }
tmp=$tmpdir/tmp
nl='
'

#
# rc -c
#

if ($rc -c >[2]/dev/null) fail 'rc -c didn''t report a bad exit status'
x=`{$rc -c 'echo $0 $2 $#*' a b c d e f}
if (false) {					# WARNING: this differs from sh
	if (!~ $x(1) a) fail rc -c reports '$0' incorrectly as $x(1)
	if (!~ $x(2) c) fail rc -c reports '$2' incorrectly as $x(2)
	if (!~ $x(3) 5) fail rc -c reports '$#' incorrectly as $x(3)
} else {
	if (!~ $x(1) $rc) fail rc -c reports '$0' incorrectly as $x(1)
	if (!~ $x(2) b) fail rc -c reports '$2' incorrectly as $x(2)
	if (!~ $x(3) 6) fail rc -c reports '$#' incorrectly as $x(3)
}

#
# umask
#

umask 0
> $tmp
x=`{ls -l $tmp}
if (!~ $x(1) -rw-rw-rw-*) fail umask 0 produced incorrect result: $x(1)
rm -f $tmp
umask 027
> $tmp
y=`{ls -l $tmp}
if (!~ $y(1) -rw-r-----*) fail umask 027 produced incorrect file: $y(1)
rm -f $tmp
if (!~ `umask 027) fail umask reported bad value: `umask

submatch 'umask bad' 'bad umask' 'bad umask'
submatch 'umask -027' 'bad umask' 'bad umask'
submatch 'umask 999999' 'bad umask' 'bad umask'
submatch 'umask hi there' 'rc: too many arguments to umask' 'umask arg count'

if (!~ `umask 027) fail bad umask changed umask value to `umask

#
# redirections
#

fn bytes { for (i) x=`{wc -c $i} echo $x(1) }
echo foo > foo > bar
if (!~ `{bytes foo} 0) fail double redirection created non-empty empty file
if (!~ `{bytes bar} 4) fail double redirection created wrong sized file: `{bytes bar}
rm -f foo bar
echo -n >1 >[2]2 >[1=2] foo
x = `` '' {cat 1}
if (!~ $#x 0) fail dup created non-empty empty file: `` '' {cat 1}
if (!~ `` '' {cat 2} foo) fail dup put wrong contents in file : `` '' {cat 2}
rm -f 1 2

expect error from cat, closing stdin
cat >[0=]

submatch 'cat>(1 2 3)' 'rc: multi-word filename in redirection' 'redirection error'
submatch 'cat>()' 'rc: null filename in redirection' 'redirection error'

#
# blow the input stack
#

if (!~ hi `{
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval eval eval \
eval eval eval eval eval eval eval eval eval eval eval echo hi
})
	fail huge eval

#
# heredocs and herestrings
#

bigfile=$tmpdir/big.$pid
od $rc | sed 5000q > $bigfile
abc=(this is a)
x=()
result='this is a heredoc
this is an heredoc
'
if (!~ `` '' {<<[5] EOF cat <[0=5]} $result) fail unquoted heredoc
$abc heredoc$x
$abc^n $x^here$x^doc
EOF
{if (!~ `` $nl cat '	') fail quoted heredoc} << ' '
	
 

<<<[9] ``''{cat $bigfile} \
{
	if(!~ ``''{cat <[0=9]}``'' cat)fail large herestrings
} < \
$bigfile

rm -f $bigfile

if (!~ `{cat<<eof
$$
eof
} '$')
	fail quoting '$' in heredoc

submatch 'cat<<eof' 'rc: heredoc incomplete' 'incomplete heredoc'
submatch 'cat<<eof
' 'rc: heredoc incomplete' 'incomplete heredoc'

submatch 'cat<<(eof eof)' 'rc: eof-marker not a single literal word' 'bad heredoc marker'

#
# lexical analysis
#

expect warning
./tripping 0 > $tmp
$rc $tmp
rm -f $tmp

echo here_is_a_really_long_word.It_has_got_to_be_longer_than_1000_characters_for_the_lexical_analyzers_buffer_to_overflow_but_that_should_not_be_too_difficult_to_do.Let_me_start_writing_some_Lewis_Carroll.Twas_brillig_and_the_slithy_toves,Did_gyre_and_gimble_in_the_wabe.All_mimsy_were_the_borogoves,And_the_mome-raths_outgrabe.Beware_the_Jabberwock_my_son,The_jaws_that_bite,the_claws_that_catch.Beware_the_Jub-jub_bird,and_shun_The_frumious_Bandersnatch.He_took_his_vorpal_sword_in_hand,Long_time_the_manxome_foe_he_sought,So_rested_he_by_the_Tumtum_tree,And_stood_awhile_in_thought.And_as_in_uffish_thought_he_stood,The_Jabberwock,with_eyes_of_flame,Came_whiffling_through_the_tulgey_wood,And_burbled_as_it_came.One_two,one_two.And_through_and_through_The_vorpal_blade_went_snicker-snack.He_left_it_dead_and_with_its_head,He_went_galumphing_back.And_hast_thou_slain_the_Jabberwock?Come_to_my_arms,my_beamish_boy,Oh_frabjous_day.Callooh_callay.He_chortled_in_his_joy.Twas_brillig,and_the_slithy_toves,Did_gyre_and_gimble_in_the_wabe,All_mimsy_were_the_borogoves,And_the_mome-raths_outgrabe. > $tmpdir/$pid.lw

echo 'here_is_a_really_long_word.It_has_got_to_be_longer_than_1000_characters_for_the_lexical_analyzers_buffer_to_overflow_but_that_should_not_be_too_difficult_to_do.Let_me_start_writing_some_Lewis_Carroll.Twas_brillig_and_the_slithy_toves,Did_gyre_and_gimble_in_the_wabe.All_mimsy_were_the_borogoves,And_the_mome-raths_outgrabe.Beware_the_Jabberwock_my_son,The_jaws_that_bite,the_claws_that_catch.Beware_the_Jub-jub_bird,and_shun_The_frumious_Bandersnatch.He_took_his_vorpal_sword_in_hand,Long_time_the_manxome_foe_he_sought,So_rested_he_by_the_Tumtum_tree,And_stood_awhile_in_thought.And_as_in_uffish_thought_he_stood,The_Jabberwock,with_eyes_of_flame,Came_whiffling_through_the_tulgey_wood,And_burbled_as_it_came.One_two,one_two.And_through_and_through_The_vorpal_blade_went_snicker-snack.He_left_it_dead_and_with_its_head,He_went_galumphing_back.And_hast_thou_slain_the_Jabberwock?Come_to_my_arms,my_beamish_boy,Oh_frabjous_day.Callooh_callay.He_chortled_in_his_joy.Twas_brillig,and_the_slithy_toves,Did_gyre_and_gimble_in_the_wabe,All_mimsy_were_the_borogoves,And_the_mome-raths_outgrabe.' > $tmpdir/$pid.lq

if (!~ ``(){cat $tmpdir/$pid.lw} ``(){cat $tmpdir/$pid.lq})
	fail expected long string and long word to be identical
if (! x=`{wc -c $tmpdir/$pid.lw} ~ $x(1) 1088)
	fail expected long word to be 1088 bytes
if (! x=`{wc -c $tmpdir/$pid.lq} ~ $x(1) 1088)
	fail expected long quote to be 1088 bytes

rm $tmpdir/$pid.lw
rm $tmpdir/$pid.lq

submatch 'echo hi |[2' 'rc: expected ''='' or '']'' after digit' 'scan error'
submatch 'echo hi |[92=]' 'rc: expected digit after ''=''' 'scan error'
submatch 'echo hi |[a]' 'rc: expected digit after ''[''' 'scan error'
submatch 'echo hi |[2-' 'rc: expected ''='' or '']'' after digit' 'scan error'
submatch 'echo hi |[2=99a]' 'rc: expected '']'' after digit' 'scan error'
submatch 'echo hi |[2=a99]' 'rc: expected digit or '']'' after ''=''' 'scan error'
submatch 'echo ''hi' 'rc: eof in quoted string' 'scan error'

ifs='' {
	if (!~ 'h i' `{echo -n h\
i})
		fail backslash-newline to space conversion
	if (!~ $rc^\rc `{echo -n $rc\rc})
		fail backslash after variable name did not terminate variable name scan
	if (!~ $rc^' rc' `{echo -n $rc\
rc})
		fail backslash-newline after variable name space conversion
	if (!~ 'h\i' `{echo -n h\i})
		fail backslash in the middle of word
	if (!~ 'h \ i' `{echo -n h \ i})
		fail free-standing backslash
}

if (! $rc -c '# eof in comment')
	fail eof in comment exited with nonzero status

# test the syntax error printer

prompt='' if (!~ `` $nl {$rc -cif>[2=1]} 'rc: line 1: '*' error near if')
	fail print syntax error

prompt='' if (!~ `` $nl {$rc -icif>[2=1]} *' error')
	fail print syntax error

#
# builtins
#

fn foo {
	return sigfpe
}

foo
if (!~ $status sigfpe)
	fail return builtin did not return sigfpe

fn foo # test deleting of function
fn bar {
	for (i in 1 2 3 4 5)
		if (~ $i 3)
			return
}

bar
if (!~ $i 3)
	fail return inside loop inside function failed

submatch return 'rc: return outside of function' 'return outside of function'
submatch 'break 1' 'rc: too many arguments to break' 'break arg count'
submatch break 'rc: break outside of loop' 'break outside of loop'

for (i in 1 2 3 4 5)
	if (~ $i 2)
		break
if (!~ $i 2)
	fail break out of loop

submatch 'wait foo' 'rc: `foo'' is a bad number' 'bogus argument to wait'

if (~ `{echo -n} ?)
	fail echo -n
if (!~ `` '' {echo --} $nl)
	fail echo --

pwd=`{/bin/pwd -P} cdpath=/ { # some local assignments
	home=/tmp cd
	if (!~ `{/bin/pwd -P} `{sh -c 'cd /tmp; /bin/pwd -P'})
		fail could not cd to '$home'

	cdpath=/ cd tmp
	if (!~ `{/bin/pwd -P} `{sh -c 'cd /tmp; /bin/pwd -P'})
		fail could not cd to /tmp

	cd $pwd
	if (!~ `{/bin/pwd -P} `{sh -c 'cd $pwd; /bin/pwd -P'})
		fail could not cd to current directory!
}

# Test that cd to a directory found via cdpath produces output
# when interactive.
submatch 'cdpath=/ cd tmp' /tmp 'cdpath produced wrong output'

*=(1 2 3 4 5) {
	expect bad number
	shift foo
	expect arg count
	shift 1 2 3
	expect shift overflow
	shift 123
	shift 3
	if (!~ $#* 2)
		fail shift 3 of '(1 2 3 4 5)' failed
	shift
	if (!~ $* 5)
		fail shift failed to shift left-to-right
}

false
eval && fail null eval reset '$status'

if (!~ `{rm=(); fn rm; path=(. /bin); whatis rm} /bin/rm)
	fail rm isn''''t in bin!?

expect list of signal handlers
whatis -s

expect list of variables and functions
whatis > /dev/null

submatch 'whatis -x' 'whatis: bad option: -x' 'bad option to whatis'

submatch 'whatis /frobnatz' '/frobnatz not found' 'search for /frobnatz'

if (~ `{whatis limit >[2]/dev/null} builtin) {
	limit coredumpsize 0
	if (!~ `{limit coredumpsize} 0*)
		fail failed to set coredumpsize to zero
	if (!~ `` () {limit coredumpsize} `` () {limit|grep coredumpsize})
		fail limit limit
	submatch 'limit foo' 'no such limit' 'bad limit'
}

fn cd

submatch 'cd a b c' 'rc: too many arguments to cd' 'cd arg count'
$rc -c 'cdpath=() cd /frobnatz' >[2]/dev/null && fail 'cd to /frobnatz succeeded!?'
submatch 'cdpath='''' cd frobnatz' 'couldn''t cd to frobnatz' 'cd to frobnatz succeeded!?'

'if'=keyword {
	{whatis if | fgrep '''if''=keyword' >/dev/null} || fail whatis of keyword is not quoted
}

#
# wait
#

submatch 'wait 1 2 3' 'rc: too many arguments to wait' 'wait arg count'
$rc -c 'wait 1' >[2]/dev/null && fail wait 1

sleep 3&
expect $apid
echo $apids
wait

if (~ `` '' {wait} ?)
	fail waiting for nothing

#
# matching
#
touch $tmpdir/abc.$pid $tmpdir/bbc.$pid
mkdir $tmpdir/dir.$pid $tmpdir/dip.$pid
touch $tmpdir/dir.$pid/^(a b c) $tmpdir/dip.$pid/^(a b c)

if (!~ 123 [~x]?[0-9])
	fail match
if (!~ () *)
	fail match of null list with '*'
if (~ () *v*)
	fail match of null list with '*v*' succeeded
if (!~ (foo bar zar) *****z*****)
	fail match of list by one pattern failed
if (~ (foo bar zar) *c*)
	fail bad match
if (!~ [aaa [aaa)
	fail bad rangematch
if (!~ ']' []])
	fail match right bracket
if (~ x [y])
	fail rangematch out of range
if (~ x x?)
	fail too many characters in pattern

sh -c 'test -f /////$tmpdir//////a?c.'^$pid || fail glob with many slashes
if (!~ /////$tmpdir//////a*.$pid /////$tmpdir//////a?c.$pid)
	fail glob with many slashes
if (!~ ////$tmpdir////di?.$pid////* ////$tmpdir////dir.$pid////*b*)
	fail glob with more slashes
if (! @{cd $tmpdir; ~ *.$pid/a d*/*})
	fail glob in current directory
if (!~ $tmpdir/?bc.$pid $tmpdir/bbc.$pid)
	fail match of bbc.$pid against '('abc.$pid bbc.$pid')'

rm $tmpdir/abc.$pid $tmpdir/bbc.$pid
rm -rf $tmpdir/dir.$pid $tmpdir/dip.$pid

#
# signals
#
fn sigint {eval}
kill -2 $pid
fn sigint

#
# path searching
#
$rc -c /frobnatz >[2]/dev/null && fail 'search error'

touch $tmpdir/noexec.$pid
chmod a-x $tmpdir/noexec.$pid
$rc -c $tmpdir/noexec.$pid >[2]/dev/null && fail $tmpdir/noexec.$pid is found!?
rm $tmpdir/noexec.$pid

submatch 'path='''' frobnatz' 'rc: cannot find `frobnatz''' 'search error'

{path=() /bin/sh -c 'exit 0'} || fail abs pathname with path set to null

#
# options
#

# this test is meaningless; not really a trip
expect prompt, echo hi
home=/frobnatz $rc -nolpeivdxc 'echo hi'
if (!~ `` $nl {$rc -c>[2=1]} *': option requires an argument -- c')
	fail getopt on -c
if (!~ `` $nl {$rc -q>[2=1]} *': bad option: -q')
	fail getopt on -q (bogus option)
if (!~ `{echo '#echo' | $rc -v |[2] sed 's/#//'} echo)
	fail rc -v

#
# dot
#

if (~ `` '' . ?*)
	fail null dot
if (~ `` '' {. -i} ?*)
	fail null dot -i

cat > $tmpdir/dot.$pid << eof
echo hi
eof

prompt=';' if (!~ `` '' {. -i $tmpdir/dot.$pid>[2=1]} ';hi'^$nl';')
	fail dot -i
submatch .' '$tmpdir/dot.$pid hi dot

rm $tmpdir/dot.$pid

$rc -c '. /frobnatz' >[2]/dev/null && fail 'dot of a nonexistent file'

#
# stdin
#
if (!~ `{echo echo hi | $rc} hi)
	fail piping stdin to rc

#
# functions, variables & environment
#
fn --- {for(i)a|[2=3]b>>c<<<e&f>[2=1]}

if (whatis printenv >/dev/null>[2=1]) {
	printenv=printenv
} else if (whatis env >/dev/null>[2=1]) {
	printenv=env
} else
	printenv=()

if (~ $#printenv 1 && !~ `` $nl {$printenv | grep fn___2d__2d__2d} 'fn___2d__2d__2d={for(i in $*)a|[2=3]b >>c <<<e&f >[2=1]}')
	fail protect_env

fn --- {replace}
~ `{whatis -- ---} *replace* || fail replace a function definition
fn ---
whatis -- --- >[2]/dev/null && fail function deletion
foo=bar *=bar
foo=nest *=nest {
	~ $foo nest || fail local assignment
	~ $* nest || fail local assignment to '$*'
	foo=()
	*=()
	~ $foo () || fail local deletion
	~ $* () || fail local deletion to '$*'
}
~ $foo bar || fail restore of global after local group
~ $* bar || fail restore of '$*' after local group
~ `{exec>[2=1];$rc -xc 'foo=()'} 'foo=()' || fail -x echo of variable deletion

fn_ff='{' prompt='' if (!~ `` $nl {$rc -cff>[2=1]} 'rc: line 1: '*' error near eof')
	fail 'bogus function in environment'

#
# statuses
#
~ `{$rc -ec 'sleep 10&kill -9 $apid;wait'>[2=1]} killed ||
	fail status diagnostic

$rc -c 'exit 0 sigfpe' && fail exit of bad pipeline is true

submatch 'exit foo' 'bad status' 'exit diagnostic'

#
# control structures
#
if (!~ `{false || echo hi} hi)
	fail '||'
if (!~ `{true && echo hi} hi)
	fail '&&'
if (~ `{true || echo hi} hi)
	fail '||'
if (~ `{false && echo hi} hi)
	fail '&&'

while (false)
	fail false while
while (true) {
	break
	fail break in while
}

switch (foo) {
	case bar
		fail matched bar in switch
	case foo
		eval
	case *
		fail match foo in switch
}

switch (nothing) {
	case bar
		fail matched bar in switch
	case *
		i=frobnatz
}

~ $i frobnatz || fail match '*' in switch

submatch '()=()' 'rc: null variable name' 'assignment diagnostic'
submatch 'fn () {eval}' 'rc: null function name' 'assigning null function name'

#
# prompt
#
fn prompt {echo hi}
prompt=() if (!~ `{$rc -i /dev/null>[2]/dev/null} hi) fail fn prompt
fn prompt

#
# history
#
history=$tmpdir/hist.$pid prompt='' echo 'history=()' | $rc -i

if (!~ `{cat $tmpdir/hist.$pid} 'history=()')
	fail output to history file

history=$tmpdir/hist.$pid prompt='' echo 'history=()' | $rc -i

if (!~ `` () {cat $tmpdir/hist.$pid} 'history=()
history=()
')
	fail append to history file

rm $tmpdir/hist.$pid

if (!~ `{history=/frobnatz/foo prompt='' echo eval | $rc -i >[2=1]} ?*)
	fail accessing bad history file

#
# regression
#

expect date
{ date & wait } |cat

# Making rc's input non-blocking should have no untoward side effects.
x=`{ { sleep 1; echo echo foo } | { ./tripping n; $rc >[2=1] } }
if (!~ foo $x)
	fail input file descriptor nonblocking

# `rc -s' reads from stdin, but should not imply `-i'
expect foo bar qux
$rc -s foo bar qux <<'eof'
echo $*
eof

# Believe it or not, I broke root directory globbing in rc-1.6b1.
x=/*
~ '/*' $^x && fail root directory globbing

# fn sigexit should be cleared in children

x = ()
expect rc: cannot find '`nonesuch'''
x = `{true | nonesuch}; if (~ $x trip) fail sigexit in children
x = `{ < /dev/null wc |grep xxx }; if (~ $x trip) fail sigexit in children
x = `{{ wc | wc } < /dev/null }; if (~ $x trip) fail sigexit in children

# core dumps in glob.c
~ () '*' && fail globber problem
~ () '**' && fail globber problem

# check for ctrl-a bug
x=`{./tripping a}
~ `{$rc -c 'echo $x'} $x || fail ctrl-a bug detected

# check for hilarious quoting bug introduced while fixing ctrl-a
x=('#' '#' '#')
eval z^`{whatis -v x}
~ $#zx 3 || fail hilarious quoting bug

# parens bypass quote detector bug
fn x {echo x.y $(x.y)}
~ ``''{whatis -f x} 'fn x {echo x.y $(x^.y)}
' || fail sneaky parens bug

# before rc-1.7.1, certain glob patterns could fail on broken symlinks
mkdir $tmpdir/qux
ln -s /frobnatz $tmpdir/qux/foo
x=$tmpdir/qux/foo*
~ $x $tmpdir/qux/foo || { rm -rf $tmpdir/qux; fail broken symlink globbing }
x=$tmpdir/qux*/foo
~ $x $tmpdir/qux/foo || { rm -rf $tmpdir/qux; fail broken symlink globbing }

rm -rf $tmpdir

#############################################################################
## Check builtin continue in while loop.
#############################################################################
q=''''
C=$q^while-continue$q
L=()

save_star = *
ten = a^(1 2 3 4 5 6 7 8 9 10)
* = $ten
while (! ~ $#* 0) {
  n = $1; shift
  if (~ $n a2 a3) {
    continue
  }
  L=($L $n)
}
* = $save_star; save_star = ()

if (!~ $#L 8) {
  fail Wrong length of list from $C: $#L
}
if (!~ $L(1) a1) {
  fail First element of $C list is not a1: $L(1)
}
if (!~ $L(2) a4) {
  fail Second element of $C list is not a4: $L(2)
}
C=() L=()

#############################################################################
## Check builtin continue in for loop.
#############################################################################
C=$q^for-continue$q
L=()

for (x in a b c d e f g) {
  if (~ $x c f) {
    continue
  }
  L=($L $x)
}
if (!~ $#L 5) {
  fail Wrong length of list from $C
}
if (!~ $L(1) a) {
  fail First element of $C list is not a: $L(1)
}
if (!~ $L(3) d) {
  fail Third element of $C list is not d: $L(3)
}
if (!~ $L(5) g) {
  fail Fifth element of $C list is not g: $L(5)
}
C=() L=()

submatch continue 'rc: continue outside of loop' 'continue outside of loop'

#############################################################################
## check builtin continue in for loop (2)
#############################################################################
L=()
for (x in a b c d e f g) {
  if (~ $x b d) {
    continue
  }
  L=($L $x)
  if (~ $x f) {
    break;
  }
}

if (!~ $^L 'a c e f') {
  fail List should be '(a c e f)', but is $L
}

# test support for unquoted =
submatch 'echo foo = bar' 'foo = bar' 'unquoted equals 1'
submatch 'echo foo=bar' 'foo=bar' 'unquoted equals 2'
submatch 'echo foo=' 'foo=' 'unquoted equals 3'
submatch 'echo =bar; whatis -v echo' 'echo=bar' 'unquoted equals 4'

# test for github issue #34
X=`{ $rc -ec 'b=true; while($b){b=false}; echo YYY' }
if (! ~ $X YYY) {
    fail '"rc -e" exits when condition in the while statement fails in the second iteration'
}

# test for counter intuitive redirection parse
A=``($nl){ $rc -c 'mkdir / >[2=1] | tr a-z A-Z' }
B=``($nl){ $rc -c '>[2=1] mkdir / | tr a-z A-Z' }
~ $A $B || fail counter intuitive redirection bug, $A '!=' $B

# test for github issue #40
$rc -ec 'false | false'
if (~ $status 0) {
	fail '"rc -e" exits with zero status when command in pipeline returns non-zero'
}
$rc -ec 'X=`{false}'
if (~ $status 0) {
	fail '"rc -e" exits with zero status when backquote command returns non-zero'
}

# exercise "if not"
submatch 'if (false) echo foo; if not echo bar' 'bar' 'if not 1'
submatch 'if (false) echo -n foo; if not echo -n bar; echo qux' 'barqux' 'if not 2'
submatch 'if (false) echo foo; echo qux; if not echo bar' 'rc: `if not'' must follow `if''' 'if not 3'
submatch 'if (false) { echo foo } else echo qux; if not echo bar' 'rc: `if not'' must follow `if''' 'if not 4'

# if-not stack if_state regression
s='
L=()
if (true) {
    if (false) {
        L=($L  a1)
    }
    if not L=($L  a2)
}
if not L=($L  a3)
echo $L
'

m=`{$rc -c $s}
if (! ~ $^m a2) {
    fail '"if not" not correct'
}

# exercise flag builtin
submatch 'flag' 'rc: not enough arguments to flag' 'flag no args'
submatch 'flag a b c' 'usage: flag f [ + | - ]' 'flag 3 args'
submatch 'flag xx' 'usage: flag f [ + | - ]' 'flag wrong first arg'
submatch 'flag x x' 'usage: flag f [ + | - ]' 'flag wrong second arg'
submatch 'flag c && echo yes' yes 'flag c'
submatch 'flag x +; flag x -' 'flag x -' 'setting x flag'