| 1 | ## our_shell: ysh
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| 2 | ## oils_failures_allowed: 0
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| 3 |
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| 4 | #### For loop over expression: List
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| 5 | var mylist = [1, 2, 3]
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| 6 | for item in (mylist) {
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| 7 | echo "item $item"
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| 8 | }
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| 9 |
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| 10 | ## STDOUT:
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| 11 | item 1
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| 12 | item 2
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| 13 | item 3
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| 14 | ## END
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| 15 |
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| 16 | #### For loop over expression: Dict, not BashAssoc
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| 17 |
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| 18 | var mydict = {name: 'bob', age: 40}
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| 19 | for key in (mydict) {
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| 20 | echo "key $key"
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| 21 | }
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| 22 |
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| 23 | declare -A A=([name]=bob)
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| 24 | for key in (A) {
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| 25 | echo "key $key"
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| 26 | }
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| 27 |
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| 28 | ## status: 3
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| 29 | ## STDOUT:
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| 30 | key name
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| 31 | key age
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| 32 | ## END
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| 33 |
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| 34 |
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| 35 | #### For loop over range
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| 36 | var myrange = 0 .. 3
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| 37 | for i in (myrange) {
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| 38 | echo "i $i"
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| 39 | }
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| 40 |
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| 41 | ## STDOUT:
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| 42 | i 0
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| 43 | i 1
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| 44 | i 2
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| 45 | ## END
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| 46 |
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| 47 | #### Shell for loop with index (equivalent of enumerate())
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| 48 | for i, item in a b c {
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| 49 | echo "$i $item"
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| 50 | }
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| 51 | ## STDOUT:
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| 52 | 0 a
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| 53 | 1 b
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| 54 | 2 c
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| 55 | ## END
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| 56 |
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| 57 | #### 3 indices with (mylist) is a runtime error
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| 58 | for i, item bad in (['foo', 'bar']) {
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| 59 | echo "$i $item $bad"
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| 60 | }
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| 61 | ## status: 2
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| 62 |
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| 63 | #### Shell for loop can't have 3 indices
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| 64 | for i, bad, bad in a b c {
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| 65 | echo $i $item
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| 66 | }
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| 67 | ## status: 2
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| 68 |
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| 69 | #### Any for loop can't have 4 indiecs
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| 70 | for a, b, c, d in (['foo']) {
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| 71 | echo $i $item
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| 72 | }
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| 73 | ## status: 2
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| 74 |
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| 75 | #### Expression for loop with index: List
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| 76 | for i, item in (['spam', 'eggs']) {
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| 77 | echo "$i $item"
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| 78 | }
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| 79 | ## STDOUT:
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| 80 | 0 spam
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| 81 | 1 eggs
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| 82 | ## END
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| 83 |
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| 84 | #### Expression for loop with index: Dict (TODO: define dict iter order)
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| 85 | for key, value in ({name: 'bob', age: 40}) {
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| 86 | echo "pair $key $value"
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| 87 | }
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| 88 | ## STDOUT:
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| 89 | pair name bob
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| 90 | pair age 40
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| 91 | ## END
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| 92 |
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| 93 | #### Dict: index key value loop (TODO: define dict iter order)
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| 94 | for i, key, value in ({name: 'bob', age: 40}) {
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| 95 | echo "entry $i $key $value"
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| 96 | }
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| 97 | ## STDOUT:
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| 98 | entry 0 name bob
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| 99 | entry 1 age 40
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| 100 | ## END
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| 101 |
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| 102 |
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| 103 | #### Equivalent of zip()
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| 104 |
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| 105 | var array = :| d e f |
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| 106 |
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| 107 | for i, item in a b c {
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| 108 | echo "$i $item $[array[i]]"
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| 109 | }
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| 110 |
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| 111 | ## STDOUT:
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| 112 | 0 a d
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| 113 | 1 b e
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| 114 | 2 c f
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| 115 | ## END
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| 116 |
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| 117 | #### parse_bare_word eliminates confusion
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| 118 |
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| 119 | shopt --unset parse_bare_word
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| 120 |
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| 121 | for x in mylist { # THIS FAILS
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| 122 | echo "BAD $x"
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| 123 | }
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| 124 |
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| 125 | ## status: 2
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| 126 | ## STDOUT:
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| 127 | ## END
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| 128 |
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| 129 |
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| 130 | #### Object that's not iterable
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| 131 |
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| 132 | echo hi
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| 133 | for x in (42) {
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| 134 | echo $x
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| 135 | }
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| 136 |
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| 137 | ## status: 3
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| 138 | ## STDOUT:
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| 139 | hi
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| 140 | ## END
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| 141 |
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| 142 | #### YSH for with brace substitution and glob
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| 143 |
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| 144 | touch {foo,bar}.py
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| 145 | for i, file in *.py {README,foo}.md {
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| 146 | echo "$i $file"
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| 147 | }
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| 148 | ## STDOUT:
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| 149 | 0 bar.py
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| 150 | 1 foo.py
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| 151 | 2 README.md
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| 152 | 3 foo.md
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| 153 | ## END
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| 154 |
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| 155 | #### for x in <> {
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| 156 |
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| 157 | # to avoid stdin conflict
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| 158 |
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| 159 | $SH $REPO_ROOT/spec/testdata/ysh-for-stdin.ysh
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| 160 |
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| 161 | ## STDOUT:
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| 162 | -1-
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| 163 | -2-
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| 164 | -3-
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| 165 |
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| 166 | 0 1
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| 167 | 1 2
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| 168 | 2 3
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| 169 |
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| 170 | empty
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| 171 | done
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| 172 |
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| 173 | empty2
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| 174 | done2
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| 175 | ## END
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