1	#
2	# Snippets from http://landley.net/notes.html
3	#
4	# Usage:
5	# test/toysh.sh
6
7	#### @Q
8	# http://landley.net/notes.html#24-06-2020
9
10	# Fix these
11	case $SH in (dash|mksh|zsh) exit ;; esac
12
13	xx() { echo "${*@Q}";}; xx a b c d
14	xx() { echo "${@@Q}";}; xx a b c d
15	## STDOUT:
16	'a' 'b' 'c' 'd'
17	'a' 'b' 'c' 'd'
18	## END
19	## OK osh STDOUT:
20	a b c d
21	a b c d
22	## END
23	## N-I dash/mksh/zsh stdout-json: ""
24
25	#### extglob 1 - OSH only supports extglob for fnmatch()?
26	rm * # setup
27	# http://landley.net/notes.html#12-06-2020
28	shopt -s extglob
29
30	touch abc\)d
31	echo ab+(c?d)
32
33	IFS=c ABC="c?d"
34	echo ab+($ABC)
35
36	ABC='*'
37	echo $ABC
38
39	## STDOUT:
40	abc)d
41	ab+( ?d)
42	abc)d _tmp
43	## END
44	## OK mksh STDOUT:
45	abc)d
46	ab+( ?d)
47	_tmp abc)d
48	## END
49
50	#### extglob 2
51	# http://landley.net/notes.html#17-05-2020
52
53	shopt -s extglob # required for bash, not osh
54	IFS=x; ABC=cxd; for i in +($ABC); do echo =$i=; done
55
56	## STDOUT:
57	=+(c=
58	=d)=
59	## END
60
61	#### char class / extglob
62	# http://landley.net/notes.html#14-05-2020
63	shopt -s extglob
64
65	rm *
66
67	touch l; echo [hello"]"
68
69	touch b
70	echo [$(echo abc)]
71
72	touch +
73	echo [+()]
74	echo [+(])
75	## STDOUT:
76	[hello]
77	b
78	+
79	[+(])
80	## END
81	## BUG mksh STDOUT:
82	[hello]
83	b
84	[+()]
85	[+(])
86	## END
87
88	#### patsub of $* - http://landley.net/notes.html#23-04-2020
89	chicken() { echo ${*/b c/ghi}; }; chicken a b c d
90	## STDOUT:
91	a b c d
92	## END
93	## BUG mksh stdout-json: ""
94	## BUG mksh status: 1
95
96
97	#### Brace Expansion (known difference)
98	# http://landley.net/notes.html#04-01-2020
99
100	HOME=/home/foo
101
102	echo {~,~root}/pwd
103	echo \{~,~root}/pwd
104	echo ""{~,~root}/pwd
105
106	## STDOUT:
107	~/pwd ~root/pwd
108	{~,~root}/pwd
109	~/pwd ~root/pwd
110	## END
111	## OK bash STDOUT:
112	/home/foo/pwd /root/pwd
113	{~,~root}/pwd
114	~/pwd ~root/pwd
115	## END
116
117	#### {abc}<<< - http://landley.net/notes-2019.html#09-12-2019
118	{ echo; } {abc}<<< walrus
119	cat <&$abc
120	## STDOUT:
121
122	walrus
123	## END
124	## N-I mksh stdout-json: ""
125	## N-I mksh status: 1
126
127	#### slice of @ and @ - http://landley.net/notes.html#23-04-2020
128	IFS=x; X=x; eval abc=a${X}b
129
130	chicken() { for i in "${@:3:5}"; do echo =$i=; done; } ; chicken ab cd ef gh ij kl mn op qr
131
132	chicken() { for i in "${*:3:5}"; do echo =$i=; done; } ; chicken ab cd ef gh ij kl mn op qr
133
134	## STDOUT:
135	=ef=
136	=gh=
137	=ij=
138	=kl=
139	=mn=
140	=ef gh ij kl mn=
141	## END
142	## N-I mksh stdout-json: ""
143	## N-I mksh status: 1
144