| 1 | ## oils_failures_allowed: 4
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| 2 | ## compare_shells: bash
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| 3 |
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| 4 |
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| 5 | #### help
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| 6 | help
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| 7 | echo status=$? >&2
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| 8 | help help
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| 9 | echo status=$? >&2
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| 10 | help -- help
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| 11 | echo status=$? >&2
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| 12 | ## STDERR:
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| 13 | status=0
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| 14 | status=0
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| 15 | status=0
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| 16 | ## END
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| 17 |
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| 18 | #### bad help topic
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| 19 | help ZZZ 2>$TMP/err.txt
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| 20 | echo "help=$?"
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| 21 | cat $TMP/err.txt | grep -i 'no help topics' >/dev/null
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| 22 | echo "grep=$?"
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| 23 | ## STDOUT:
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| 24 | help=1
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| 25 | grep=0
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| 26 | ## END
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| 27 |
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| 28 | #### mapfile
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| 29 | type mapfile >/dev/null 2>&1 || exit 0
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| 30 | printf '%s\n' {1..5..2} | {
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| 31 | mapfile
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| 32 | echo "n=${#MAPFILE[@]}"
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| 33 | printf '[%s]\n' "${MAPFILE[@]}"
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| 34 | }
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| 35 | ## STDOUT:
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| 36 | n=3
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| 37 | [1
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| 38 | ]
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| 39 | [3
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| 40 | ]
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| 41 | [5
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| 42 | ]
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| 43 | ## END
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| 44 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 45 | ## END
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| 46 |
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| 47 | #### readarray (synonym for mapfile)
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| 48 | type readarray >/dev/null 2>&1 || exit 0
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| 49 | printf '%s\n' {1..5..2} | {
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| 50 | readarray
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| 51 | echo "n=${#MAPFILE[@]}"
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| 52 | printf '[%s]\n' "${MAPFILE[@]}"
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| 53 | }
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| 54 | ## STDOUT:
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| 55 | n=3
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| 56 | [1
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| 57 | ]
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| 58 | [3
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| 59 | ]
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| 60 | [5
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| 61 | ]
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| 62 | ## END
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| 63 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 64 | ## END
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| 65 |
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| 66 | #### mapfile (array name): arr
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| 67 | type mapfile >/dev/null 2>&1 || exit 0
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| 68 | printf '%s\n' {1..5..2} | {
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| 69 | mapfile arr
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| 70 | echo "n=${#arr[@]}"
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| 71 | printf '[%s]\n' "${arr[@]}"
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| 72 | }
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| 73 | ## STDOUT:
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| 74 | n=3
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| 75 | [1
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| 76 | ]
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| 77 | [3
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| 78 | ]
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| 79 | [5
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| 80 | ]
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| 81 | ## END
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| 82 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 83 | ## END
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| 84 |
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| 85 | #### mapfile (delimiter): -d delim
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| 86 | # Note: Bash-4.4+
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| 87 | type mapfile >/dev/null 2>&1 || exit 0
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| 88 | printf '%s:' {1..5..2} | {
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| 89 | mapfile -d : arr
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| 90 | echo "n=${#arr[@]}"
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| 91 | printf '[%s]\n' "${arr[@]}"
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| 92 | }
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| 93 | ## STDOUT:
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| 94 | n=3
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| 95 | [1:]
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| 96 | [3:]
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| 97 | [5:]
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| 98 | ## END
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| 99 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 100 | ## END
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| 101 |
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| 102 | #### mapfile (delimiter): -d '' (null-separated)
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| 103 | # Note: Bash-4.4+
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| 104 | type mapfile >/dev/null 2>&1 || exit 0
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| 105 | printf '%s\0' {1..5..2} | {
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| 106 | mapfile -d '' arr
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| 107 | echo "n=${#arr[@]}"
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| 108 | printf '[%s]\n' "${arr[@]}"
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| 109 | }
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| 110 | ## STDOUT:
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| 111 | n=3
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| 112 | [1]
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| 113 | [3]
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| 114 | [5]
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| 115 | ## END
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| 116 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 117 | ## END
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| 118 |
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| 119 | #### mapfile (truncate delim): -t
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| 120 | type mapfile >/dev/null 2>&1 || exit 0
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| 121 | printf '%s\n' {1..5..2} | {
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| 122 | mapfile -t arr
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| 123 | echo "n=${#arr[@]}"
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| 124 | printf '[%s]\n' "${arr[@]}"
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| 125 | }
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| 126 | ## STDOUT:
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| 127 | n=3
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| 128 | [1]
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| 129 | [3]
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| 130 | [5]
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| 131 | ## END
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| 132 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 133 | ## END
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| 134 |
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| 135 | #### mapfile -t doesn't remove \r
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| 136 | type mapfile >/dev/null 2>&1 || exit 0
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| 137 | printf '%s\r\n' {1..5..2} | {
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| 138 | mapfile -t arr
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| 139 | argv.py "${arr[@]}"
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| 140 | }
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| 141 | ## STDOUT:
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| 142 | ['1\r', '3\r', '5\r']
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| 143 | ## END
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| 144 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 145 | ## END
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| 146 |
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| 147 | #### mapfile -t bugs (ble.sh)
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| 148 |
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| 149 | # empty line
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| 150 | mapfile -t lines <<< $'hello\n\nworld'
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| 151 | echo len=${#lines[@]}
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| 152 | #declare -p lines
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| 153 |
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| 154 | # initial newline
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| 155 | mapfile -t lines <<< $'\nhello'
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| 156 | echo len=${#lines[@]}
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| 157 | #declare -p lines
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| 158 |
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| 159 | # trailing newline
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| 160 | mapfile -t lines <<< $'hello\n'
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| 161 | echo len=${#lines[@]}
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| 162 | #declare -p lines
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| 163 |
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| 164 | ## STDOUT:
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| 165 | len=3
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| 166 | len=2
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| 167 | len=2
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| 168 | ## END
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| 169 |
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| 170 | #### mapfile (store position): -O start
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| 171 | type mapfile >/dev/null 2>&1 || exit 0
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| 172 | printf '%s\n' a{0..2} | {
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| 173 | arr=(x y z)
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| 174 | mapfile -O 2 -t arr
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| 175 | echo "n=${#arr[@]}"
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| 176 | printf '[%s]\n' "${arr[@]}"
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| 177 | }
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| 178 | ## STDOUT:
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| 179 | n=5
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| 180 | [x]
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| 181 | [y]
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| 182 | [a0]
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| 183 | [a1]
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| 184 | [a2]
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| 185 | ## END
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| 186 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 187 | ## END
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| 188 |
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| 189 | #### mapfile (input range): -s start -n count
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| 190 | type mapfile >/dev/null 2>&1 || exit 0
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| 191 | printf '%s\n' a{0..10} | {
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| 192 | mapfile -s 5 -n 3 -t arr
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| 193 | echo "n=${#arr[@]}"
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| 194 | printf '[%s]\n' "${arr[@]}"
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| 195 | }
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| 196 | ## STDOUT:
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| 197 | n=3
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| 198 | [a5]
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| 199 | [a6]
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| 200 | [a7]
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| 201 | ## END
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| 202 | ## N-I dash/mksh/zsh/ash STDOUT:
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| 203 | ## END
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| 204 |
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| 205 | #### mapfile / readarray stdin TODO: Fix me.
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| 206 | shopt -s lastpipe # for bash
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| 207 |
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| 208 | seq 2 | mapfile m
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| 209 | seq 3 | readarray r
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| 210 | echo ${#m[@]}
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| 211 | echo ${#r[@]}
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| 212 | ## STDOUT:
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| 213 | 2
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| 214 | 3
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| 215 | ## END
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