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
|
%test
function f$$ () {
print regress expansion of function names
}
f$$
0:Regression test: `function f$$ () { ... }'
>regress expansion of function names
function foo () print bar
foo
0:Function definition without braces
>bar
functions -M m1
m1() { (( $# )) }
print $(( m1() ))
print $(( m1(1) ))
print $(( m1(1,2) ))
0:User-defined math functions, argument handling
>0
>1
>2
functions -M m2
m2() {
integer sum
local val
for val in $*; do
(( sum += $val ))
done
}
print $(( m2(1) ))
print $(( m2(1,3+3,4**2) ))
0:User-defined math functions, complex argument handling
>1
>23
functions -M m3 1 2
m3() { (( 1 )) }
print zero
(print $(( m3() )))
print one
print $(( m3(1) ))
print two
print $(( m3(1,2) ))
print three
(print $(( m3(1,2,3) )))
1:User-defined math functions, argument checking
>zero
>one
>1
>two
>1
>three
?(eval):4: wrong number of arguments: m3()
?(eval):10: wrong number of arguments: m3(1,2,3)
functions -M m4 0 0 testmathfunc
functions -M m5 0 0 testmathfunc
testmathfunc() {
if [[ $0 = m4 ]]; then
(( 4 ))
else
(( 5 ))
fi
}
print $(( m4() ))
print $(( m5() ))
0:User-defined math functions, multiple interfaces
>4
>5
command_not_found_handler() {
print "Great News! I've handled the command:"
print "$1"
print "with arguments:"
print -l ${argv[2,-1]}
}
ACommandWhichHadBetterNotExistOnTheSystem and some "really useful" args
0:Command not found handler, success
>Great News! I've handled the command:
>ACommandWhichHadBetterNotExistOnTheSystem
>with arguments:
>and
>some
>really useful
>args
command_not_found_handler() {
print "Your command:" >&2
print "$1" >&2
print "has gone down the tubes. Sorry." >&2
return 1
}
ThisCommandDoesNotExistEither
127:Command not found handler, failure
?Your command:
?ThisCommandDoesNotExistEither
?has gone down the tubes. Sorry.
?(eval):7: command not found: ThisCommandDoesNotExistEither
local variable=outside
print "I am $variable"
function {
local variable=inside
print "I am $variable"
}
print "I am $variable"
() {
local variable="inside again"
print "I am $variable"
}
print "I am $variable"
0:Anonymous function scope
>I am outside
>I am inside
>I am outside
>I am inside again
>I am outside
integer i
for (( i = 0; i < 10; i++ )); do function {
case $i in
([13579])
print $i is odd
;|
([2468])
print $i is even
;|
([2357])
print $i is prime
;;
esac
}; done
0:Anonymous function with patterns in loop
>1 is odd
>2 is even
>2 is prime
>3 is odd
>3 is prime
>4 is even
>5 is odd
>5 is prime
>6 is even
>7 is odd
>7 is prime
>8 is even
>9 is odd
echo stuff in file >file.in
function {
sed 's/stuff/rubbish/'
} <file.in >file.out
cat file.out
0:Anonymous function redirection
>rubbish in file
variable="Do be do"
print $variable
function {
print $variable
local variable="Da de da"
print $variable
function {
print $variable
local variable="Dum da dum"
print $variable
}
print $variable
}
print $variable
0:Nested anonymous functions
>Do be do
>Do be do
>Da de da
>Da de da
>Dum da dum
>Da de da
>Do be do
|
