1	# This syntax is available with OSH too
2
3	#### ... with simple command
4	... echo # comment
5	hi # comment
6	there
7	;
8	echo ---
9	## STDOUT:
10	hi there
11	---
12	## END
13
14	#### ... with pipeline
15	... { echo one; echo two; }
16	| sort
17	| wc -l
18	;
19	## STDOUT:
20	2
21	## END
22
23	#### ... with multiline $()
24
25	# newlines mean the normal thing
26	echo $(echo one
27	echo two)
28
29	... echo
30	$(echo 3
31	echo 4) # is this right?
32	| wc -l
33	;
34	## STDOUT:
35	one two
36	1
37	## END
38
39	#### ... inside command sub $()
40	echo one $(... echo
41	two
42	three) four
43	echo five
44	## STDOUT:
45	one two three four
46	five
47	## END
48
49	#### ... with && and [[
50	echo one && false || echo two
51
52	... echo three
53	&& [[ 0 -eq 0 ]]
54	&& echo four
55	&& false
56	|| echo five
57	;
58
59	echo ---
60
61	## STDOUT:
62	one
63	two
64	three
65	four
66	five
67	---
68	## END
69
70	#### '... for' is allowed, but NOT recommended
71	... for x in foo bar; do echo $x; done
72	;
73
74	... for x in foo bar; do
75	echo $x;
76	done
77	;
78
79	return
80
81	# This style gets messed up because of translation, but that is EXPECTED.
82	... for x in foo bar
83	do
84	echo $x;
85	done
86	;
87
88	## STDOUT:
89	foo
90	bar
91	foo
92	bar
93	## END
94
95	#### Blank line in multiline command is syntax error
96	... echo comment
97	# comment
98	is OK
99	;
100
101	... echo blank line
102
103	is not OK
104	;
105
106	## status: 2
107	## STDOUT:
108	comment is OK
109	## END
110
111	#### Blank line with spaces and tabs isn't OK either
112	... echo comment
113	# comment
114	is OK
115	;
116
117	# NOTE: invisible spaces and tabs below (:set list in vim)
118	... echo blank line
119
120	is not OK
121	;
122	## status: 2
123	## STDOUT:
124	comment is OK
125	## END
126
127
128
129	# Notes:
130	# - MakeParserForCommandSub() instantiates a new WordParser, so we can safetly
131	# change state in the top-level one only
132	# - BoolParser is called for [[ ]] and uses the same self.w_parser. I think
133	# that's OK?
134
135	# So I think we can change state in WordParser. (Also possible in
136	# CommandParser but meh).
137	#
138	# self.is_multiline = False
139	#
140	# When this is flag is on, then we
141	#
142	# Id.Op_Newline -> Id.WS_Space or Id.Ignored_LineCont
143	# - and then that is NOT passed to the command parser?
144	# - Or you can make it Id.Ignored_Newline
145	#
146	# BUT if you get 2 of them in a row without a comment, you can change it to:
147	# - Id.Op_Newline?
148	#
149	# Actually this is very simple rule and maybe can be done without much
150	# disturbance to the code.
151	#
152	# cursor_was_newline might need more state?
153
154
155	#### Combine multi-line command and strings
156	shopt -s oil:all
157
158	var x = 'one'
159
160	# Print 3 args without separators
161	... write --sep '' --end '' --
162	"""
163	$x
164	""" # 1. Double quoted
165	'''
166	two
167	three
168	''' # 2. Single quoted
169	$'four\n' # 3. C-style with explicit newline
170	| tac # Reverse
171	| tr a-z A-Z # Uppercase
172	;
173
174	## STDOUT:
175	FOUR
176	THREE
177	TWO
178	ONE
179	## END