1 | ## compare_shells: bash mksh zsh
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2 | ## oils_failures_allowed: 0
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3 |
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4 | #### no expansion
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5 | echo {foo}
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6 | ## stdout: {foo}
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7 |
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8 | #### incomplete trailing expansion
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9 | echo {a,b}_{
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10 | ## stdout: a_{ b_{
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11 | ## OK osh stdout: {a,b}_{
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12 |
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13 | #### partial leading expansion
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14 | echo }_{a,b}
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15 | ## stdout: }_a }_b
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16 | ## OK osh stdout: }_{a,b}
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17 |
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18 | #### partial leading expansion 2
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19 | echo {x}_{a,b}
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20 | ## stdout: {x}_a {x}_b
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21 | ## OK osh stdout: {x}_{a,b}
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22 |
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23 | #### } in expansion
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24 | # hm they treat this the SAME. Leftmost { is matched by first }, and then
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25 | # there is another } as the postfix.
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26 | echo {a,b}}
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27 | ## stdout: a} b}
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28 | ## status: 0
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29 | ## OK osh stdout: {a,b}}
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30 | ## OK zsh stdout-json: ""
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31 | ## OK zsh status: 1
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32 |
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33 | #### single expansion
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34 | echo {foo,bar}
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35 | ## stdout: foo bar
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36 |
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37 | #### double expansion
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38 | echo {a,b}_{c,d}
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39 | ## stdout: a_c a_d b_c b_d
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40 |
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41 | #### triple expansion
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42 | echo {0,1}{0,1}{0,1}
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43 | ## stdout: 000 001 010 011 100 101 110 111
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44 |
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45 | #### double expansion with single and double quotes
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46 | echo {'a',b}_{c,"d"}
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47 | ## stdout: a_c a_d b_c b_d
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48 |
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49 | #### expansion with mixed quotes
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50 | echo -{\X"b",'cd'}-
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51 | ## stdout: -Xb- -cd-
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52 |
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53 | #### expansion with simple var
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54 | a=A
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55 | echo -{$a,b}-
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56 | ## stdout: -A- -b-
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57 |
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58 | #### double expansion with simple var -- bash bug
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59 | # bash is inconsistent with the above
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60 | a=A
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61 | echo {$a,b}_{c,d}
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62 | ## stdout: A_c A_d b_c b_d
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63 | ## BUG bash stdout: b_c b_d
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64 |
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65 | #### double expansion with braced variable
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66 | # This fixes it
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67 | a=A
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68 | echo {${a},b}_{c,d}
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69 | ## stdout: A_c A_d b_c b_d
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70 |
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71 | #### double expansion with literal and simple var
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72 | a=A
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73 | echo {_$a,b}_{c,d}
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74 | ## stdout: _A_c _A_d b_c b_d
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75 | ## BUG bash stdout: _ _ b_c b_d
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76 |
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77 | #### expansion with command sub
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78 | a=A
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79 | echo -{$(echo a),b}-
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80 | ## stdout: -a- -b-
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81 |
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82 | #### expansion with arith sub
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83 | a=A
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84 | echo -{$((1 + 2)),b}-
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85 | ## stdout: -3- -b-
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86 |
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87 | #### double expansion with escaped literals
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88 | a=A
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89 | echo -{\$,\[,\]}-
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90 | ## stdout: -$- -[- -]-
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91 |
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92 | #### { in expansion
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93 | # bash and mksh treat this differently. bash treats the
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94 | # first { is a prefix. I think it's harder to read, and \{{a,b} should be
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95 | # required.
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96 | echo {{a,b}
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97 | ## stdout: {{a,b}
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98 | ## BUG bash/zsh stdout: {a {b
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99 |
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100 | #### quoted { in expansion
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101 | echo \{{a,b}
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102 | ## stdout: {a {b
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103 |
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104 | #### Empty expansion
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105 | echo a{X,,Y}b
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106 | ## stdout: aXb ab aYb
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107 |
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108 | #### Empty alternative
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109 | # zsh and mksh don't do word elision, probably because they do brace expansion
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110 | # AFTER variable substitution.
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111 | argv.py {X,,Y,}
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112 | ## stdout: ['X', 'Y']
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113 | ## OK mksh/zsh stdout: ['X', '', 'Y', '']
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114 | ## status: 0
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115 |
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116 | #### Empty alternative with empty string suffix
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117 | # zsh and mksh don't do word elision, probably because they do brace expansion
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118 | # AFTER variable substitution.
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119 | argv.py {X,,Y,}''
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120 | ## stdout: ['X', '', 'Y', '']
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121 | ## status: 0
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122 |
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123 | #### nested brace expansion
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124 | echo -{A,={a,b}=,B}-
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125 | ## stdout: -A- -=a=- -=b=- -B-
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126 |
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127 | #### triple nested brace expansion
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128 | echo -{A,={a,.{x,y}.,b}=,B}-
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129 | ## stdout: -A- -=a=- -=.x.=- -=.y.=- -=b=- -B-
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130 |
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131 | #### nested and double brace expansion
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132 | echo -{A,={a,b}{c,d}=,B}-
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133 | ## stdout: -A- -=ac=- -=ad=- -=bc=- -=bd=- -B-
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134 |
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135 | #### expansion on RHS of assignment
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136 | # I think bash's behavior is more consistent. No splitting either.
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137 | v={X,Y}
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138 | echo $v
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139 | ## stdout: {X,Y}
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140 | ## BUG mksh stdout: X Y
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141 |
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142 | #### no expansion with RHS assignment
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143 | {v,x}=X
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144 | ## status: 127
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145 | ## stdout-json: ""
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146 | ## OK zsh status: 1
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147 |
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148 | #### Tilde expansion
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149 | HOME=/home/foo
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150 | echo ~
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151 | HOME=/home/bar
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152 | echo ~
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153 | ## STDOUT:
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154 | /home/foo
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155 | /home/bar
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156 | ## END
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157 |
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158 | #### Tilde expansion with brace expansion
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159 |
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160 | # The brace expansion happens FIRST. After that, the second token has tilde
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161 | # FIRST, so it gets expanded. The first token has an unexpanded tilde, because
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162 | # it's not in the leading position.
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163 |
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164 | HOME=/home/bob
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165 |
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166 | # Command
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167 |
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168 | echo {foo~,~}/bar
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169 |
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170 | # Loop
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171 |
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172 | for x in {foo~,~}/bar; do
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173 | echo -- $x
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174 | done
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175 |
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176 | # Array
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177 |
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178 | a=({foo~,~}/bar)
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179 |
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180 | for y in "${a[@]}"; do
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181 | echo "== $y"
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182 | done
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183 |
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184 | ## STDOUT:
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185 | foo~/bar /home/bob/bar
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186 | -- foo~/bar
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187 | -- /home/bob/bar
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188 | == foo~/bar
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189 | == /home/bob/bar
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190 | ## END
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191 |
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192 | ## BUG mksh STDOUT:
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193 | foo~/bar ~/bar
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194 | -- foo~/bar
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195 | -- ~/bar
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196 | == foo~/bar
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197 | == ~/bar
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198 | ## END
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199 |
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200 | #### Two kinds of tilde expansion
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201 |
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202 | HOME=/home/bob
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203 |
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204 | # Command
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205 | echo ~{/src,root}
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206 |
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207 | # Loop
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208 |
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209 | for x in ~{/src,root}; do
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210 | echo -- $x
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211 | done
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212 |
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213 | # Array
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214 |
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215 | a=(~{/src,root})
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216 |
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217 | for y in "${a[@]}"; do
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218 | echo "== $y"
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219 | done
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220 |
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221 | ## STDOUT:
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222 | /home/bob/src /root
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223 | -- /home/bob/src
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224 | -- /root
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225 | == /home/bob/src
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226 | == /root
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227 | ## END
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228 |
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229 | ## BUG mksh STDOUT:
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230 | ~/src ~root
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231 | -- ~/src
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232 | -- ~root
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233 | == ~/src
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234 | == ~root
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235 | ## END
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236 |
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237 | #### Tilde expansion come before var expansion
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238 | HOME=/home/bob
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239 | foo=~
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240 | echo $foo
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241 | foo='~'
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242 | echo $foo
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243 | # In the second instance, we expand into a literal ~, and since var expansion
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244 | # comes after tilde expansion, it is NOT tried again.
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245 | ## STDOUT:
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246 | /home/bob
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247 | ~
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248 | ## END
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249 |
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250 | #### Number range expansion
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251 | echo -{1..8..3}-
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252 | echo -{1..10..3}-
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253 | ## STDOUT:
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254 | -1- -4- -7-
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255 | -1- -4- -7- -10-
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256 | ## N-I mksh STDOUT:
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257 | -{1..8..3}-
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258 | -{1..10..3}-
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259 | ## END
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260 |
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261 | #### Ascending number range expansion with negative step is invalid
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262 | echo -{1..8..-3}-
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263 | ## stdout-json: ""
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264 | ## status: 2
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265 | ## BUG bash stdout: -1- -4- -7-
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266 | ## BUG zsh stdout: -7- -4- -1-
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267 | ## BUG bash/zsh status: 0
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268 | ## N-I mksh stdout: -{1..8..-3}-
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269 | ## N-I mksh status: 0
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270 |
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271 | #### regression: -1 step disallowed
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272 | echo -{1..4..-1}-
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273 | ## stdout-json: ""
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274 | ## status: 2
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275 | ## BUG bash stdout: -1- -2- -3- -4-
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276 | ## BUG zsh stdout: -4- -3- -2- -1-
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277 | ## BUG bash/zsh status: 0
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278 | ## N-I mksh stdout: -{1..4..-1}-
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279 | ## N-I mksh status: 0
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280 |
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281 | #### regression: 0 step disallowed
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282 | echo -{1..4..0}-
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283 | ## stdout-json: ""
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284 | ## status: 2
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285 | ## BUG bash stdout: -1- -2- -3- -4-
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286 | ## BUG zsh stdout: -1..4..0-
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287 | ## BUG bash/zsh status: 0
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288 | ## N-I mksh stdout: -{1..4..0}-
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289 | ## N-I mksh status: 0
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290 |
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291 | #### Descending number range expansion with positive step is invalid
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292 | echo -{8..1..3}-
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293 | ## stdout-json: ""
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294 | ## status: 2
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295 | ## BUG bash/zsh stdout: -8- -5- -2-
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296 | ## BUG bash/zsh status: 0
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297 | ## N-I mksh stdout: -{8..1..3}-
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298 | ## N-I mksh status: 0
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299 |
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300 | #### Descending number range expansion with negative step
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301 | echo -{8..1..-3}-
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302 | ## stdout: -8- -5- -2-
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303 | # zsh behavior seems clearly wrong!
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304 | ## BUG zsh stdout: -2- -5- -8-
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305 | ## N-I mksh stdout: -{8..1..-3}-
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306 |
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307 | #### Singleton ranges
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308 | echo {1..1}-
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309 | echo {-9..-9}-
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310 | echo {-9..-9..3}-
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311 | echo {-9..-9..-3}-
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312 | echo {a..a}-
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313 | ## STDOUT:
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314 | 1-
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315 | -9-
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316 | -9-
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317 | -9-
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318 | a-
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319 | ## END
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320 | ## N-I mksh STDOUT:
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321 | {1..1}-
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322 | {-9..-9}-
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323 | {-9..-9..3}-
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324 | {-9..-9..-3}-
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325 | {a..a}-
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326 | ## END
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327 |
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328 | #### Singleton char ranges with steps
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329 | echo {a..a..2}-
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330 | echo {a..a..-2}-
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331 | ## STDOUT:
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332 | a-
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333 | a-
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334 | ## END
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335 | # zsh is considered buggy because it implements {a..a} but not {a..a..1} !
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336 | ## BUG zsh STDOUT:
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337 | {a..a..2}-
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338 | {a..a..-2}-
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339 | ## END
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340 | ## N-I mksh STDOUT:
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341 | {a..a..2}-
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342 | {a..a..-2}-
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343 | ## END
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344 |
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345 | #### Char range expansion
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346 | echo -{a..e}-
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347 | ## stdout: -a- -b- -c- -d- -e-
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348 | ## N-I mksh stdout: -{a..e}-
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349 |
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350 | #### Char range expansion with step
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351 | echo -{a..e..2}-
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352 | ## stdout: -a- -c- -e-
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353 | ## N-I mksh/zsh stdout: -{a..e..2}-
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354 |
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355 | #### Char ranges with steps of the wrong sign
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356 | echo -{a..e..-2}-
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357 | echo -{e..a..2}-
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358 | ## stdout-json: ""
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359 | ## status: 2
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360 | ## BUG bash STDOUT:
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361 | -a- -c- -e-
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362 | -e- -c- -a-
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363 | ## END
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364 | ## BUG bash status: 0
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365 | ## N-I mksh/zsh STDOUT:
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366 | -{a..e..-2}-
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367 | -{e..a..2}-
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368 | ## END
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369 | ## BUG mksh/zsh status: 0
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370 |
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371 | #### Mixed case char expansion is invalid
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372 | case $SH in *zsh) echo BUG; exit ;; esac
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373 | echo -{z..A}-
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374 | echo -{z..A..2}-
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375 | ## stdout-json: ""
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376 | ## status: 2
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377 | ## OK mksh STDOUT:
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378 | -{z..A}-
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379 | -{z..A..2}-
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380 | ## END
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381 | ## OK mksh status: 0
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382 | ## BUG zsh stdout: BUG
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383 | ## BUG zsh status: 0
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384 | # This is exposed a weird bash bug!!!
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385 | ## BUG bash stdout-json: ""
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386 | ## BUG bash status: 1
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387 |
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388 | #### Descending char range expansion
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389 | echo -{e..a..-2}-
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390 | ## stdout: -e- -c- -a-
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391 | ## N-I mksh/zsh stdout: -{e..a..-2}-
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392 |
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393 | #### Fixed width number range expansion
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394 | echo -{01..03}-
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395 | echo -{09..12}- # doesn't become -012-, fixed width
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396 | echo -{12..07}-
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397 | ## STDOUT:
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398 | -01- -02- -03-
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399 | -09- -10- -11- -12-
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400 | -12- -11- -10- -09- -08- -07-
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401 | ## END
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402 | ## N-I mksh STDOUT:
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403 | -{01..03}-
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404 | -{09..12}-
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405 | -{12..07}-
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406 | ## END
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407 |
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408 | #### Inconsistent fixed width number range expansion
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409 | # zsh uses the first one, bash uses the max width?
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410 | echo -{01..003}-
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411 | ## stdout: -001- -002- -003-
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412 | ## OK zsh stdout: -01- -02- -03-
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413 | ## N-I mksh stdout: -{01..003}-
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414 |
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415 | #### Inconsistent fixed width number range expansion
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416 | # zsh uses the first width, bash uses the max width?
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417 | echo -{01..3}-
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418 | ## stdout: -01- -02- -03-
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419 | ## N-I mksh stdout: -{01..3}-
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420 |
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421 | #### Adjacent comma and range works
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422 | echo -{a,b}{1..3}-
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423 | ## STDOUT:
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424 | -a1- -a2- -a3- -b1- -b2- -b3-
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425 | ## END
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426 | ## N-I mksh STDOUT:
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427 | -a{1..3}- -b{1..3}-
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428 | ## END
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429 |
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430 | #### Range inside comma works
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431 | echo -{a,_{1..3}_,b}-
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432 | ## STDOUT:
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433 | -a- -_1_- -_2_- -_3_- -b-
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434 | ## END
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435 | ## N-I mksh STDOUT:
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436 | -a- -_{1..3}_- -b-
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437 | ## END
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438 |
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439 | #### Mixed comma and range doesn't work
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440 | echo -{a,b,1..3}-
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441 | ## STDOUT:
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442 | -a- -b- -1..3-
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443 | ## END
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444 |
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445 | #### comma and invalid range (adjacent and nested)
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446 | echo -{a,b}{1...3}-
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447 | echo -{a,{1...3}}-
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448 | echo {a,b}{}
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449 | ## STDOUT:
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450 | -a{1...3}- -b{1...3}-
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451 | -a- -{1...3}-
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452 | a{} b{}
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453 | ## END
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454 | # osh doesn't expand ANYTHING on invalid syntax. That's OK because of the test
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455 | # case below.
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456 | ## OK osh STDOUT:
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457 | -{a,b}{1...3}-
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458 | -{a,{1...3}}-
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459 | {a,b}{}
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460 | ## END
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461 |
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462 | #### OSH provides an alternative to invalid syntax
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463 | echo -{a,b}\{1...3\}-
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464 | echo -{a,\{1...3\}}-
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465 | echo {a,b}\{\}
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466 | ## STDOUT:
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467 | -a{1...3}- -b{1...3}-
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468 | -a- -{1...3}-
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469 | a{} b{}
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470 | ## END
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471 |
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472 | #### Side effect in expansion
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473 | # bash is the only one that does it first. I guess since this is
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474 | # non-POSIX anyway, follow bash?
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475 | i=0
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476 | echo {a,b,c}-$((i++))
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477 | ## stdout: a-0 b-1 c-2
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478 | ## OK mksh/zsh stdout: a-0 b-0 c-0
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479 |
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480 | #### Invalid brace expansions don't expand
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481 | echo {1.3}
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482 | echo {1...3}
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483 | echo {1__3}
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484 | ## STDOUT:
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485 | {1.3}
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486 | {1...3}
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487 | {1__3}
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488 | ## END
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489 |
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490 | #### Invalid brace expansions mixing characters and numbers
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491 | # zsh does something crazy like : ; < = > that I'm not writing
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492 | case $SH in *zsh) echo BUG; exit ;; esac
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493 | echo {1..a}
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494 | echo {z..3}
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495 | ## STDOUT:
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496 | {1..a}
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497 | {z..3}
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498 | ## END
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499 | ## BUG zsh STDOUT:
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500 | BUG
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501 | ## END
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502 |
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