1 | ## compare_shells: bash zsh mksh ash
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2 | ## oils_failures_allowed: 2
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3 |
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4 | #### recursive arith: one level
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5 | a='b=123'
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6 | echo $((a))
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7 | ## stdout: 123
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8 | ## N-I dash status: 2
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9 | ## N-I dash stdout-json: ""
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10 | ## N-I yash stdout: b=123
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11 |
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12 | #### recursive arith: two levels
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13 | a='b=c' c='d=123'
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14 | echo $((a))
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15 | ## stdout: 123
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16 | ## N-I dash status: 2
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17 | ## N-I dash stdout-json: ""
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18 | ## N-I yash stdout: b=c
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19 |
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20 | #### recursive arith: short circuit &&, ||
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21 | # Note: mksh R52 has a bug. Even though it supports a short circuit like
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22 | # "echo $((cond&&(a=1)))", it doesn't work with "x=a=1; echo
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23 | # $((cond&&x))". It is fixed at least in mksh R57.
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24 | # Note: "busybox sh" doesn't support short circuit.
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25 | a=b=123
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26 | echo $((1||a)):$((b))
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27 | echo $((0||a)):$((b))
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28 | c=d=321
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29 | echo $((0&&c)):$((d))
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30 | echo $((1&&c)):$((d))
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31 | ## STDOUT:
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32 | 1:0
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33 | 1:123
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34 | 0:0
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35 | 1:321
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36 | ## END
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37 |
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38 | ## BUG mksh/ash STDOUT:
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39 | 1:123
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40 | 1:123
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41 | 0:321
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42 | 1:321
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43 | ## END
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44 |
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45 | ## N-I dash/yash status: 2
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46 | ## N-I dash/yash STDOUT:
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47 | 1:0
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48 | ## END
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49 |
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50 | #### recursive arith: short circuit ?:
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51 | # Note: "busybox sh" behaves strangely.
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52 | y=a=123 n=a=321
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53 | echo $((1?(y):(n))):$((a))
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54 | echo $((0?(y):(n))):$((a))
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55 | ## STDOUT:
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56 | 123:123
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57 | 321:321
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58 | ## END
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59 | ## BUG ash STDOUT:
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60 | 123:321
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61 | 321:321
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62 | ## END
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63 | ## N-I dash status: 2
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64 | ## N-I dash stdout-json: ""
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65 | ## N-I yash STDOUT:
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66 | a=123:0
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67 | a=321:0
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68 | ## END
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69 |
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70 | #### recursive arith: side effects
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71 | # In Zsh and Busybox sh, the side effect of inner arithmetic
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72 | # evaluations seems to take effect only after the whole evaluation.
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73 | a='b=c' c='d=123'
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74 | echo $((a,d)):$((d))
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75 | ## stdout: 123:123
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76 | ## BUG zsh/ash stdout: 0:123
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77 | ## N-I dash/yash status: 2
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78 | ## N-I dash/yash stdout-json: ""
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79 |
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80 | #### recursive arith: recursion
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81 | loop='i<=100&&(s+=i,i++,loop)' s=0 i=0
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82 | echo $((a=loop,s))
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83 | ## stdout: 5050
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84 | ## N-I mksh status: 1
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85 | ## N-I mksh stdout-json: ""
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86 | ## N-I ash/dash/yash status: 2
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87 | ## N-I ash/dash/yash stdout-json: ""
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88 |
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89 | #### recursive arith: array elements
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90 | text[1]='d=123'
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91 | text[2]='text[1]'
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92 | text[3]='text[2]'
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93 | echo $((a=text[3]))
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94 | ## stdout: 123
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95 | ## N-I ash/dash/yash status: 2
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96 | ## N-I ash/dash/yash stdout-json: ""
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97 |
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98 | #### dynamic arith varname: assign
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99 | vec2_set () {
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100 | local this=$1 x=$2 y=$3
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101 | : $(( ${this}_x = $2 ))
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102 | : $(( ${this}_y = y ))
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103 | }
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104 | vec2_set a 3 4
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105 | vec2_set b 5 12
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106 | echo a_x=$a_x a_y=$a_y
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107 | echo b_x=$b_x b_y=$b_y
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108 | ## STDOUT:
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109 | a_x=3 a_y=4
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110 | b_x=5 b_y=12
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111 | ## END
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112 |
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113 | #### dynamic arith varname: read
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114 |
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115 | vec2_load() {
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116 | local this=$1
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117 | x=$(( ${this}_x ))
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118 | : $(( y = ${this}_y ))
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119 | }
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120 | a_x=12 a_y=34
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121 | vec2_load a
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122 | echo x=$x y=$y
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123 | ## STDOUT:
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124 | x=12 y=34
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125 | ## END
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126 |
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127 | #### dynamic arith varname: copy/add
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128 | shopt -s eval_unsafe_arith # for RHS
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129 |
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130 | vec2_copy () {
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131 | local this=$1 rhs=$2
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132 | : $(( ${this}_x = $(( ${rhs}_x )) ))
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133 | : $(( ${this}_y = ${rhs}_y ))
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134 | }
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135 | vec2_add () {
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136 | local this=$1 rhs=$2
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137 | : $(( ${this}_x += $(( ${rhs}_x )) ))
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138 | : $(( ${this}_y += ${rhs}_y ))
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139 | }
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140 | a_x=3 a_y=4
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141 | b_x=4 b_y=20
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142 | vec2_copy c a
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143 | echo c_x=$c_x c_y=$c_y
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144 | vec2_add c b
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145 | echo c_x=$c_x c_y=$c_y
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146 | ## STDOUT:
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147 | c_x=3 c_y=4
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148 | c_x=7 c_y=24
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149 | ## END
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150 |
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151 | #### is-array with ${var@a}
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152 | case $SH in (mksh|ash|dash|yash) exit 1 ;; esac
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153 |
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154 | function ble/is-array { [[ ${!1@a} == *a* ]]; }
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155 |
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156 | ble/is-array undef
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157 | echo undef $?
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158 |
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159 | string=''
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160 | ble/is-array string
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161 | echo string $?
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162 |
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163 | array=(one two three)
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164 | ble/is-array array
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165 | echo array $?
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166 | ## STDOUT:
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167 | undef 1
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168 | string 1
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169 | array 0
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170 | ## END
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171 | ## N-I zsh/mksh/ash/dash/yash status: 1
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172 | ## N-I zsh/mksh/ash/dash/yash stdout-json: ""
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173 |
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174 |
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175 | #### Sparse array with big index
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176 |
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177 | # TODO: more InternalStringArray idioms / stress tests ?
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178 |
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179 | a=()
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180 |
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181 | if false; then
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182 | # This takes too long! # From Zulip
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183 | i=$(( 0x0100000000000000 ))
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184 | else
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185 | # smaller number that's OK
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186 | i=$(( 0x0100000 ))
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187 | fi
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188 |
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189 | a[i]=1
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190 |
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191 | echo len=${#a[@]}
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192 |
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193 | ## STDOUT:
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194 | len=1
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195 | ## END
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196 |
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197 | ## N-I ash status: 2
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198 | ## N-I ash STDOUT:
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199 | ## END
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200 |
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201 | ## BUG zsh STDOUT:
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202 | len=1048576
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203 | ## END
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204 |
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205 |
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206 | #### shift unshift reverse
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207 |
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208 | case $SH in mksh|ash) exit ;; esac
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209 |
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210 | # https://github.com/akinomyoga/ble.sh/blob/79beebd928cf9f6506a687d395fd450d027dc4cd/src/util.sh#L578-L582
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211 |
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212 | # @fn ble/array#unshift arr value...
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213 | function ble/array#unshift {
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214 | builtin eval -- "$1=(\"\${@:2}\" \"\${$1[@]}\")"
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215 | }
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216 | # @fn ble/array#shift arr count
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217 | function ble/array#shift {
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218 | # Note: Bash 4.3 以下では ${arr[@]:${2:-1}} が offset='${2'
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219 | # length='-1' に解釈されるので、先に算術式展開させる。
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220 | builtin eval -- "$1=(\"\${$1[@]:$((${2:-1}))}\")"
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221 | }
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222 | # @fn ble/array#reverse arr
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223 | function ble/array#reverse {
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224 | builtin eval "
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225 | set -- \"\${$1[@]}\"; $1=()
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226 | local e$1 i$1=\$#
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227 | for e$1; do $1[--i$1]=\"\$e$1\"; done"
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228 | }
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229 |
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230 | a=( {1..6} )
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231 | echo "${a[@]}"
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232 |
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233 | ble/array#shift a 1
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234 | echo "${a[@]}"
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235 |
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236 | ble/array#shift a 2
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237 | echo "${a[@]}"
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238 |
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239 | echo ---
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240 |
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241 | ble/array#unshift a 99
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242 | echo "${a[@]}"
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243 |
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244 | echo ---
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245 |
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246 | # doesn't work in zsh!
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247 | ble/array#reverse a
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248 | echo "${a[@]}"
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249 |
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250 |
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251 | ## STDOUT:
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252 | 1 2 3 4 5 6
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253 | 2 3 4 5 6
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254 | 4 5 6
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255 | ---
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256 | 99 4 5 6
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257 | ---
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258 | 6 5 4 99
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259 | ## END
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260 |
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261 | ## BUG zsh STDOUT:
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262 | 1 2 3 4 5 6
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263 | 2 3 4 5 6
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264 | 4 5 6
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265 | ---
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266 | 99 4 5 6
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267 | ---
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268 | 5 4 99
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269 | ## END
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270 |
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271 | ## N-I mksh/ash STDOUT:
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272 | ## END
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273 |
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274 |
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275 | #### shopt -u expand_aliases and eval
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276 | case $SH in zsh|mksh|ash) exit ;; esac
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277 |
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278 | alias echo=false
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279 |
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280 | function f {
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281 | shopt -u expand_aliases
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282 | eval -- "$1"
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283 | shopt -s expand_aliases
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284 | }
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285 |
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286 | f 'echo hello'
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287 |
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288 | ## STDOUT:
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289 | hello
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290 | ## END
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291 | ## N-I zsh/mksh/ash STDOUT:
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292 | ## END
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293 |
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294 |
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295 | #### Tilde expansions in RHS of designated array initialization
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296 | case $SH in zsh|mksh|ash) exit ;; esac
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297 |
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298 | HOME=/home/user
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299 | declare -A a
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300 | declare -A a=(['home']=~ ['hello']=~:~:~)
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301 | echo "${a['home']}"
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302 | echo "${a['hello']}"
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303 |
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304 | ## STDOUT:
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305 | /home/user
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306 | /home/user:/home/user:/home/user
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307 | ## END
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308 |
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309 | # Note: bash-5.2 has a bug that the tilde doesn't expand on the right hand side
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310 | # of [key]=value. This problem doesn't happen in bash-3.1..5.1 and bash-5.3.
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311 | ## BUG bash STDOUT:
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312 | ~
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313 | ~:~:~
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314 | ## END
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315 |
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316 | ## N-I zsh/mksh/ash stdout-json: ""
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317 |
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318 |
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319 | #### InitializerList (BashArray): index increments with
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320 | case $SH in zsh|mksh|ash) exit 99;; esac
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321 | a=([100]=1 2 3 4)
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322 | printf 'keys: '; argv.py "${!a[@]}"
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323 | printf 'vals: '; argv.py "${a[@]}"
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324 | a=([100]=1 2 3 4 [5]=a b c d)
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325 | printf 'keys: '; argv.py "${!a[@]}"
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326 | printf 'vals: '; argv.py "${a[@]}"
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327 | ## STDOUT:
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328 | keys: ['100', '101', '102', '103']
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329 | vals: ['1', '2', '3', '4']
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330 | keys: ['5', '6', '7', '8', '100', '101', '102', '103']
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331 | vals: ['a', 'b', 'c', 'd', '1', '2', '3', '4']
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332 | ## END
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333 | ## N-I zsh/mksh/ash status: 99
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334 | ## N-I zsh/mksh/ash stdout-json: ""
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335 |
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336 | #### InitializerList (BashArray): [k]=$v and [k]="$@"
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337 | case $SH in zsh|mksh|ash) exit 99;; esac
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338 | i=5
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339 | v='1 2 3'
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340 | a=($v [i]=$v)
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341 | printf 'keys: '; argv.py "${!a[@]}"
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342 | printf 'vals: '; argv.py "${a[@]}"
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343 |
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344 | x=(3 5 7)
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345 | a=($v [i]="${x[*]}")
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346 | printf 'keys: '; argv.py "${!a[@]}"
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347 | printf 'vals: '; argv.py "${a[@]}"
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348 | a=($v [i]="${x[@]}")
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349 | printf 'keys: '; argv.py "${!a[@]}"
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350 | printf 'vals: '; argv.py "${a[@]}"
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351 | a=($v [i]=${x[*]})
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352 | printf 'keys: '; argv.py "${!a[@]}"
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353 | printf 'vals: '; argv.py "${a[@]}"
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354 | a=($v [i]=${x[@]})
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355 | printf 'keys: '; argv.py "${!a[@]}"
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356 | printf 'vals: '; argv.py "${a[@]}"
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357 | ## STDOUT:
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358 | keys: ['0', '1', '2', '5']
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359 | vals: ['1', '2', '3', '1 2 3']
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360 | keys: ['0', '1', '2', '5']
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361 | vals: ['1', '2', '3', '3 5 7']
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362 | keys: ['0', '1', '2', '5']
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363 | vals: ['1', '2', '3', '3 5 7']
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364 | keys: ['0', '1', '2', '5']
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365 | vals: ['1', '2', '3', '3 5 7']
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366 | keys: ['0', '1', '2', '5']
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367 | vals: ['1', '2', '3', '3 5 7']
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368 | ## END
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369 | ## N-I zsh/mksh/ash status: 99
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370 | ## N-I zsh/mksh/ash stdout-json: ""
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371 |
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372 |
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373 | #### InitializerList (BashAssoc): [k]=$v and [k]="$@"
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374 | case $SH in zsh|mksh|ash) exit 99;; esac
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375 | i=5
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376 | v='1 2 3'
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377 | declare -A a
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378 | a=([i]=$v)
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379 | printf 'keys: '; argv.py "${!a[@]}"
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380 | printf 'vals: '; argv.py "${a[@]}"
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381 |
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382 | x=(3 5 7)
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383 | a=([i]="${x[*]}")
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384 | printf 'keys: '; argv.py "${!a[@]}"
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385 | printf 'vals: '; argv.py "${a[@]}"
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386 | a=([i]="${x[@]}")
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387 | printf 'keys: '; argv.py "${!a[@]}"
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388 | printf 'vals: '; argv.py "${a[@]}"
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389 | a=([i]=${x[*]})
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390 | printf 'keys: '; argv.py "${!a[@]}"
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391 | printf 'vals: '; argv.py "${a[@]}"
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392 | a=([i]=${x[@]})
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393 | printf 'keys: '; argv.py "${!a[@]}"
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394 | printf 'vals: '; argv.py "${a[@]}"
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395 | ## STDOUT:
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396 | keys: ['i']
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397 | vals: ['1 2 3']
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398 | keys: ['i']
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399 | vals: ['3 5 7']
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400 | keys: ['i']
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401 | vals: ['3 5 7']
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402 | keys: ['i']
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403 | vals: ['3 5 7']
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404 | keys: ['i']
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405 | vals: ['3 5 7']
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406 | ## END
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407 | ## N-I zsh/mksh/ash status: 99
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408 | ## N-I zsh/mksh/ash stdout-json: ""
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409 |
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410 | #### InitializerList (BashArray): append to element
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411 | case $SH in zsh|mksh|ash) exit 99;; esac
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412 | hello=100
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413 | a=([hello]=1 [hello]+=2)
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414 | printf 'keys: '; argv.py "${!a[@]}"
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415 | printf 'vals: '; argv.py "${a[@]}"
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416 | a+=([hello]+=:34 [hello]+=:56)
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417 | printf 'keys: '; argv.py "${!a[@]}"
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418 | printf 'vals: '; argv.py "${a[@]}"
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419 | ## STDOUT:
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420 | keys: ['100']
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421 | vals: ['12']
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422 | keys: ['100']
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423 | vals: ['12:34:56']
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424 | ## END
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425 | ## N-I zsh/mksh/ash status: 99
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426 | ## N-I zsh/mksh/ash stdout-json: ""
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427 |
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428 | #### InitializerList (BashAssoc): append to element
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429 | case $SH in zsh|mksh|ash) exit 99;; esac
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430 | declare -A a
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431 | hello=100
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432 | a=([hello]=1 [hello]+=2)
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433 | printf 'keys: '; argv.py "${!a[@]}"
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434 | printf 'vals: '; argv.py "${a[@]}"
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435 | a+=([hello]+=:34 [hello]+=:56)
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436 | printf 'keys: '; argv.py "${!a[@]}"
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437 | printf 'vals: '; argv.py "${a[@]}"
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438 | ## STDOUT:
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439 | keys: ['hello']
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440 | vals: ['12']
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441 | keys: ['hello']
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442 | vals: ['12:34:56']
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443 | ## END
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444 | # Bash >= 5.1 has a bug. Bash <= 5.0 is OK.
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445 | ## BUG bash STDOUT:
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446 | keys: ['hello']
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447 | vals: ['2']
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448 | keys: ['hello']
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449 | vals: ['2:34:56']
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450 | ## END
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451 | ## N-I zsh/mksh/ash status: 99
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452 | ## N-I zsh/mksh/ash stdout-json: ""
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453 |
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454 | #### InitializerList (BashAssoc): non-index forms of element
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455 | case $SH in zsh|mksh|ash) exit 99;; esac
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456 | declare -A a
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457 | a=([j]=1 2 3 4)
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458 | echo "status=$?"
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459 | printf 'keys: '; argv.py "${!a[@]}"
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460 | printf 'vals: '; argv.py "${a[@]}"
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461 | ## status: 1
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462 | ## STDOUT:
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463 | ## END
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464 | # Bash outputs warning messages and succeeds (exit status 0)
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465 | ## BUG bash status: 0
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466 | ## BUG bash STDOUT:
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467 | status=0
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468 | keys: ['j']
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469 | vals: ['1']
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470 | ## END
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471 | ## BUG bash STDERR:
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472 | bash: line 3: a: 2: must use subscript when assigning associative array
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473 | bash: line 3: a: 3: must use subscript when assigning associative array
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474 | bash: line 3: a: 4: must use subscript when assigning associative array
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475 | ## END
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476 | ## N-I zsh/mksh/ash status: 99
|
477 | ## N-I zsh/mksh/ash stdout-json: ""
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478 |
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479 |
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480 | #### InitializerList (BashArray): evaluation order (1)
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481 | # RHS of [k]=v are expanded when the initializer list is instanciated. For the
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482 | # indexed array, the array indices are evaluated when the array is modified.
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483 | case $SH in zsh|mksh|ash) exit 99;; esac
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484 | i=1
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485 | a=([100+i++]=$((i++)) [200+i++]=$((i++)) [300+i++]=$((i++)))
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486 | printf 'keys: '; argv.py "${!a[@]}"
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487 | printf 'vals: '; argv.py "${a[@]}"
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488 | ## STDOUT:
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489 | keys: ['104', '205', '306']
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490 | vals: ['1', '2', '3']
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491 | ## END
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492 | ## N-I zsh/mksh/ash status: 99
|
493 | ## N-I zsh/mksh/ash stdout-json: ""
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494 |
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495 |
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496 | #### InitializerList (BashArray): evaluation order (2)
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497 | # When evaluating the index, the modification to the array by the previous item
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498 | # of the initializer list is visible to the current item.
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499 | case $SH in zsh|mksh|ash) exit 99;; esac
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500 | a=([0]=1+2+3 [a[0]]=10 [a[6]]=hello)
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501 | printf 'keys: '; argv.py "${!a[@]}"
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502 | printf 'vals: '; argv.py "${a[@]}"
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503 | ## STDOUT:
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504 | keys: ['0', '6', '10']
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505 | vals: ['1+2+3', '10', 'hello']
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506 | ## END
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507 | ## N-I zsh/mksh/ash status: 99
|
508 | ## N-I zsh/mksh/ash stdout-json: ""
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509 |
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510 |
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511 | #### InitializerList (BashArray): evaluation order (3)
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512 | # RHS should be expanded before any modification to the array.
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513 | case $SH in zsh|mksh|ash) exit 99;; esac
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514 | a=(old1 old2 old3)
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515 | a=("${a[2]}" "${a[0]}" "${a[1]}" "${a[2]}" "${a[0]}")
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516 | printf 'keys: '; argv.py "${!a[@]}"
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517 | printf 'vals: '; argv.py "${a[@]}"
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518 | a=(old1 old2 old3)
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519 | old1=101 old2=102 old3=103
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520 | new1=201 new2=202 new3=203
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521 | a+=([0]=new1 [1]=new2 [2]=new3 [5]="${a[2]}" [a[0]]="${a[0]}" [a[1]]="${a[1]}")
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522 | printf 'keys: '; argv.py "${!a[@]}"
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523 | printf 'vals: '; argv.py "${a[@]}"
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524 | ## STDOUT:
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525 | keys: ['0', '1', '2', '3', '4']
|
526 | vals: ['old3', 'old1', 'old2', 'old3', 'old1']
|
527 | keys: ['0', '1', '2', '5', '201', '202']
|
528 | vals: ['new1', 'new2', 'new3', 'old3', 'old1', 'old2']
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529 | ## END
|
530 | ## N-I zsh/mksh/ash status: 99
|
531 | ## N-I zsh/mksh/ash stdout-json: ""
|
532 |
|
533 |
|
534 | #### Issue #1069 [57] - Variable v should be visible after IFS= eval 'local v=...'
|
535 |
|
536 | set -u
|
537 |
|
538 | f() {
|
539 | # The temp env messes it up
|
540 | IFS= eval "local v=\"\$*\""
|
541 |
|
542 | # Bug does not appear with only eval
|
543 | # eval "local v=\"\$*\""
|
544 |
|
545 | #declare -p v
|
546 | echo v=$v
|
547 |
|
548 | # test -v v; echo "v defined $?"
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549 | }
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550 |
|
551 | f h e l l o
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552 |
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553 | ## STDOUT:
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554 | v=hello
|
555 | ## END
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556 |
|
557 |
|
558 | #### Issue #1069 [59] - Assigning Str to BashArray/BashAssoc should not remove BashArray/BashAssoc
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559 | case $SH in zsh|ash) exit ;; esac
|
560 |
|
561 | a=(1 2 3)
|
562 | a=99
|
563 | typeset -p a
|
564 |
|
565 | typeset -A A=([k]=v)
|
566 | A=99
|
567 | typeset -p A
|
568 |
|
569 | ## STDOUT:
|
570 | declare -a a=([0]="99" [1]="2" [2]="3")
|
571 | declare -A A=([0]="99" [k]="v" )
|
572 | ## END
|
573 |
|
574 | ## OK mksh status: 1
|
575 | ## OK mksh STDOUT:
|
576 | set -A a
|
577 | typeset a[0]=99
|
578 | typeset a[1]=2
|
579 | typeset a[2]=3
|
580 | ## END
|
581 |
|
582 | ## N-I zsh/ash STDOUT:
|
583 | ## END
|
584 |
|
585 | #### Issue #1069 [53] - LHS array parsing a[1 + 2]=3 (see spec/array-assign for more)
|
586 | case $SH in zsh|ash) exit ;; esac
|
587 |
|
588 | a[1 + 2]=7
|
589 | a[3|4]=8
|
590 | a[(1+2)*3]=9
|
591 |
|
592 | typeset -p a
|
593 |
|
594 | # Dynamic parsing
|
595 | expr='1 + 2'
|
596 | a[expr]=55
|
597 |
|
598 | b=(42)
|
599 | expr='b[0]'
|
600 | a[3 + $expr - 4]=66
|
601 |
|
602 | typeset -p a
|
603 |
|
604 | ## STDOUT:
|
605 | declare -a a=([3]="7" [7]="8" [9]="9")
|
606 | declare -a a=([3]="55" [7]="8" [9]="9" [41]="66")
|
607 | ## END
|
608 |
|
609 | ## OK mksh STDOUT:
|
610 | set -A a
|
611 | typeset a[3]=7
|
612 | typeset a[7]=8
|
613 | typeset a[9]=9
|
614 | set -A a
|
615 | typeset a[3]=55
|
616 | typeset a[7]=8
|
617 | typeset a[9]=9
|
618 | typeset a[41]=66
|
619 | ## END
|
620 |
|
621 | ## N-I zsh/ash STDOUT:
|
622 | ## END
|
623 |
|