1 | ## oils_failures_allowed: 2
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2 | ## compare_shells: dash bash mksh zsh ash
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3 |
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4 | #### NUL bytes with echo -e
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5 | case $SH in (dash) exit ;; esac
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6 |
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7 | echo -e '\0-'
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8 | #echo -e '\x00-'
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9 | #echo -e '\000-'
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10 |
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11 | ## stdout-repr: "\x00-\n"
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12 | ## BUG zsh stdout-repr: "\x00\n"
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13 | ## N-I dash stdout-json: ""
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14 |
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15 | #### NUL bytes in printf format
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16 | printf '\0\n'
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17 | ## stdout-repr: "\x00\n"
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18 |
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19 | #### NUL bytes in printf value (OSH and zsh agree)
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20 | case $SH in (dash) exit ;; esac
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21 |
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22 | nul=$'\0'
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23 | echo "$nul"
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24 | printf '%s\n' "$nul"
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25 |
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26 | ## stdout-repr: "\n\n"
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27 | ## OK osh/zsh stdout-repr: "\x00\n\x00\n"
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28 | ## N-I dash stdout-json: ""
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29 |
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30 |
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31 |
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32 | #### NUL bytes with echo $'\0' (OSH and zsh agree)
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33 |
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34 | case $SH in (dash) exit ;; esac
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35 |
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36 | # OSH agrees with ZSH -- so you have the ability to print NUL bytes without
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37 | # legacy echo -e
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38 |
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39 | echo $'\0'
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40 |
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41 | ## stdout-repr: "\n"
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42 | ## OK osh/zsh stdout-repr: "\0\n"
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43 | ## N-I dash stdout-json: ""
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44 |
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45 |
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46 | #### NUL bytes and IFS splitting
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47 | case $SH in (dash) exit ;; esac
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48 |
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49 | argv.py $(echo -e '\0')
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50 | argv.py "$(echo -e '\0')"
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51 | argv.py $(echo -e 'a\0b')
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52 | argv.py "$(echo -e 'a\0b')"
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53 |
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54 | ## STDOUT:
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55 | []
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56 | ['']
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57 | ['ab']
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58 | ['ab']
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59 | ## END
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60 | ## BUG zsh STDOUT:
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61 | ['', '']
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62 | ['']
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63 | ['a', 'b']
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64 | ['a']
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65 | ## END
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66 |
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67 | ## N-I dash STDOUT:
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68 | ## END
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69 |
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70 | #### NUL bytes with test -n
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71 |
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72 | case $SH in (dash) exit ;; esac
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73 |
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74 | # zsh is buggy here, weird
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75 | test -n $''
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76 | echo status=$?
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77 |
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78 | test -n $'\0'
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79 | echo status=$?
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80 |
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81 |
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82 | ## STDOUT:
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83 | status=1
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84 | status=1
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85 | ## END
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86 | ## OK osh STDOUT:
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87 | status=1
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88 | status=0
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89 | ## END
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90 | ## BUG zsh STDOUT:
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91 | status=0
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92 | status=0
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93 | ## END
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94 |
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95 | ## N-I dash STDOUT:
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96 | ## END
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97 |
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98 |
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99 | #### NUL bytes with test -f
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100 |
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101 | case $SH in (dash) exit ;; esac
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102 |
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103 |
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104 | test -f $'\0'
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105 | echo status=$?
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106 |
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107 | touch foo
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108 | test -f $'foo\0'
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109 | echo status=$?
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110 |
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111 | test -f $'foo\0bar'
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112 | echo status=$?
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113 |
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114 | test -f $'foobar'
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115 | echo status=$?
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116 |
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117 |
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118 | ## STDOUT:
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119 | status=1
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120 | status=0
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121 | status=0
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122 | status=1
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123 | ## END
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124 |
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125 | ## OK ash STDOUT:
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126 | status=1
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127 | status=0
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128 | status=1
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129 | status=1
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130 | ## END
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131 |
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132 | ## N-I dash STDOUT:
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133 | ## END
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134 |
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135 |
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136 | #### NUL bytes with ${#s} (OSH and zsh agree)
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137 |
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138 | case $SH in (dash) exit ;; esac
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139 |
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140 | empty=$''
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141 | nul=$'\0'
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142 |
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143 | echo empty=${#empty}
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144 | echo nul=${#nul}
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145 |
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146 |
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147 | ## STDOUT:
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148 | empty=0
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149 | nul=0
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150 | ## END
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151 |
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152 | ## OK osh/zsh STDOUT:
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153 | empty=0
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154 | nul=1
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155 | ## END
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156 |
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157 | ## N-I dash STDOUT:
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158 | ## END
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