| 1 | ## our_shell: ysh
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| 2 |
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| 3 | #### Unquoted backslash escapes, as in J8 strings
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| 4 |
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| 5 | # everything except \b \f \n
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| 6 |
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| 7 | var nl = \n
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| 8 | pp line (nl)
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| 9 |
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| 10 | var tab = \t
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| 11 | pp line (tab)
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| 12 |
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| 13 | pp line (\r)
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| 14 |
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| 15 | pp line (\" ++ \' ++ \\)
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| 16 |
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| 17 | echo backslash $[\\]
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| 18 | echo "backslash $[\\]"
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| 19 |
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| 20 | ## STDOUT:
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| 21 | (Str) "\n"
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| 22 | (Str) "\t"
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| 23 | (Str) "\r"
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| 24 | (Str) "\"'\\"
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| 25 | backslash \
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| 26 | backslash \
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| 27 | ## END
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| 28 |
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| 29 | #### Unquoted \u{3bc} escape
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| 30 |
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| 31 | var x = 'mu ' ++ \u{3bc}
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| 32 | echo $x
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| 33 |
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| 34 | echo mu $[\u{3bc}]
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| 35 | echo "mu $[\u{3bc}]"
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| 36 |
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| 37 | ## STDOUT:
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| 38 | mu μ
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| 39 | mu μ
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| 40 | mu μ
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| 41 | ## END
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| 42 |
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| 43 | #### Unquoted \y24 escape
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| 44 |
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| 45 | var x = 'foo ' ++ \y24
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| 46 | echo $x
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| 47 |
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| 48 | var y = 0x24
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| 49 | echo $y
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| 50 |
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| 51 | echo foo $[\y40]
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| 52 | echo "foo $[\y41]"
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| 53 |
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| 54 | ## STDOUT:
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| 55 | foo $
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| 56 | 36
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| 57 | foo @
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| 58 | foo A
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| 59 | ## END
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| 60 |
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| 61 | #### single quoted -- implicit and explicit raw
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| 62 | var x = 'foo bar'
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| 63 | echo $x
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| 64 | setvar x = r'foo bar' # Same string
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| 65 | echo $x
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| 66 | setvar x = r'\t\n' # This is raw
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| 67 | echo $x
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| 68 | ## STDOUT:
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| 69 | foo bar
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| 70 | foo bar
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| 71 | \t\n
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| 72 | ## END
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| 73 |
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| 74 | #### Implicit raw single quote with backslash is a syntax error
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| 75 | var x = '\t\n'
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| 76 | echo $x
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| 77 | ## status: 2
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| 78 | ## stdout-json: ""
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| 79 |
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| 80 | #### $"foo $x" to make "foo $x" explicit
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| 81 |
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| 82 | var x = $"bar"
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| 83 |
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| 84 | # expression mode
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| 85 | var y = $"foo $x"
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| 86 | echo "$y"
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| 87 |
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| 88 | # command mode
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| 89 | if test "$y" = $"foo $x"; then
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| 90 | echo equal
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| 91 | fi
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| 92 |
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| 93 | ## STDOUT:
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| 94 | foo bar
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| 95 | equal
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| 96 | ## END
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| 97 |
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| 98 | #### single quoted C strings: $'foo\n'
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| 99 |
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| 100 | # expression mode
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| 101 | var x = $'foo\nbar'
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| 102 | echo "$x"
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| 103 |
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| 104 | # command mode
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| 105 | if test "$x" = $'foo\nbar'; then
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| 106 | echo equal
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| 107 | fi
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| 108 |
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| 109 | ## STDOUT:
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| 110 | foo
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| 111 | bar
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| 112 | equal
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| 113 | ## END
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| 114 |
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| 115 | #### raw strings and J8 strings don't work in OSH
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| 116 | shopt --unset ysh:all
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| 117 |
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| 118 | echo r'hello \'
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| 119 | echo u'mu \u{3bc}'
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| 120 | echo b'byte \yff'
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| 121 |
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| 122 | echo --
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| 123 |
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| 124 | echo r'''
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| 125 | raw multi
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| 126 | '''
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| 127 |
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| 128 | echo u'''
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| 129 | u multi
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| 130 | '''
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| 131 |
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| 132 | echo b'''
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| 133 | b multi
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| 134 | '''
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| 135 |
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| 136 | ## STDOUT:
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| 137 | rhello \
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| 138 | umu \u{3bc}
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| 139 | bbyte \yff
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| 140 | --
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| 141 | r
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| 142 | raw multi
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| 143 |
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| 144 | u
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| 145 | u multi
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| 146 |
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| 147 | b
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| 148 | b multi
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| 149 |
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| 150 | ## END
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| 151 |
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| 152 | #### J8-style u'' and b'' strings in expression mode
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| 153 |
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| 154 | var x = u'\u{3bc}'
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| 155 | var y = b'\yff'
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| 156 |
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| 157 |
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| 158 | write --end '' -- $x | od -A n -t x1
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| 159 | write --end '' -- $y | od -A n -t x1
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| 160 |
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| 161 | ## STDOUT:
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| 162 | ce bc
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| 163 | ff
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| 164 | ## END
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| 165 |
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| 166 | #### J8-style u'' and b'' strings in command mode
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| 167 |
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| 168 | write --end '' -- u'\u{3bc}' | od -A n -t x1
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| 169 | write --end '' -- b'\yff' | od -A n -t x1
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| 170 |
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| 171 | # TODO: make this be illegal
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| 172 | # echo u'hello \u03bc'
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| 173 |
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| 174 | ## STDOUT:
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| 175 | ce bc
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| 176 | ff
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| 177 | ## END
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| 178 |
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| 179 | #### J8-style multi-line strings u''' b''' in command mode
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| 180 |
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| 181 | write --end '' -- u'''
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| 182 | --
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| 183 | \u{61}
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| 184 | --
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| 185 | '''
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| 186 | write --end '' -- b'''
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| 187 | --
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| 188 | \y62
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| 189 | --
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| 190 | '''
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| 191 |
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| 192 | # Should be illegal?
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| 193 | #echo u'hello \u03bc'
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| 194 |
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| 195 | ## STDOUT:
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| 196 | --
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| 197 | a
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| 198 | --
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| 199 | --
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| 200 | b
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| 201 | --
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| 202 | ## END
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| 203 |
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| 204 | #### Double Quoted
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| 205 | var name = 'World'
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| 206 | var g = "Hello $name"
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| 207 |
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| 208 | echo "Hello $name"
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| 209 | echo $g
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| 210 | ## STDOUT:
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| 211 | Hello World
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| 212 | Hello World
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| 213 | ## END
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| 214 |
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| 215 | #### Multiline strings with '' and ""
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| 216 |
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| 217 | var single = '
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| 218 | single
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| 219 | '
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| 220 |
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| 221 | var x = 42
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| 222 | var double = "
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| 223 | double $x
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| 224 | "
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| 225 |
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| 226 | echo $single
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| 227 | echo $double
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| 228 |
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| 229 | ## STDOUT:
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| 230 |
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| 231 | single
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| 232 |
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| 233 |
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| 234 | double 42
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| 235 |
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| 236 | ## END
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| 237 |
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| 238 | #### C strings in %() array literals
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| 239 | shopt -s oil:upgrade
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| 240 |
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| 241 | var lines=%($'aa\tbb' $'cc\tdd')
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| 242 | write @lines
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| 243 |
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| 244 | ## STDOUT:
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| 245 | aa bb
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| 246 | cc dd
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| 247 | ## END
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| 248 |
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| 249 | #### shopt parse_ysh_string
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| 250 |
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| 251 | # Ignored prefix
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| 252 | echo r'\'
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| 253 |
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| 254 | # space
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| 255 | write r '' end
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| 256 |
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| 257 | # These use shell rules!
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| 258 | echo ra'\'
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| 259 | echo raw'\'
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| 260 |
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| 261 | echo r"\\"
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| 262 |
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| 263 | # Now it's a regular r
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| 264 | shopt --unset parse_ysh_string
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| 265 | write unset r'\'
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| 266 |
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| 267 | ## STDOUT:
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| 268 | \
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| 269 | r
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| 270 |
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| 271 | end
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| 272 | ra\
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| 273 | raw\
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| 274 | r\
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| 275 | unset
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| 276 | r\
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| 277 | ## END
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| 278 |
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| 279 | #### $''' isn't a a multiline string (removed)
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| 280 |
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| 281 | shopt -s ysh:upgrade
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| 282 |
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| 283 | echo $'''
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| 284 | foo
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| 285 | '''
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| 286 |
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| 287 | ## STDOUT:
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| 288 |
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| 289 | foo
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| 290 |
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| 291 | ## END
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| 292 |
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| 293 |
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| 294 | #### """ and $""" in Expression Mode
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| 295 |
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| 296 | var line1 = """line1"""
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| 297 | echo line1=$line1
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| 298 | var line2 = """
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| 299 | line2"""
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| 300 | echo line2=$line2
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| 301 |
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| 302 | var two = 2
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| 303 | var three = 3
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| 304 | var x = """
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| 305 | one "
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| 306 | two = $two ""
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| 307 | three = $three
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| 308 | """
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| 309 | echo "[$x]"
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| 310 |
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| 311 | var i = 42
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| 312 | var x = """
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| 313 | good
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| 314 | bad $i
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| 315 | """
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| 316 | echo "[$x]"
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| 317 |
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| 318 | # alias
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| 319 | var x = $"""
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| 320 | good
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| 321 | bad $i
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| 322 | """
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| 323 | echo "[$x]"
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| 324 |
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| 325 | ## STDOUT:
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| 326 | line1=line1
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| 327 | line2=line2
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| 328 | [one "
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| 329 | two = 2 ""
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| 330 | three = 3
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| 331 | ]
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| 332 | [good
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| 333 | bad 42
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| 334 | ]
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| 335 | [good
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| 336 | bad 42
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| 337 | ]
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| 338 | ## END
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| 339 |
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| 340 | #### ''' in Expression Mode
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| 341 |
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| 342 | var two = 2
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| 343 | var three = 2
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| 344 |
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| 345 | var x = '''
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| 346 | two = $two '
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| 347 | three = $three ''
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| 348 | \u{61}
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| 349 | '''
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| 350 | echo "[$x]"
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| 351 |
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| 352 | var x = u'''
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| 353 | two = $two '
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| 354 | three = $three ''
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| 355 | \u{61}
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| 356 | '''
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| 357 | echo "[$x]"
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| 358 |
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| 359 | var x = b'''
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| 360 | two = $two '
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| 361 | three = $three ''
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| 362 | \u{61} \y61
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| 363 | '''
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| 364 | echo "[$x]"
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| 365 |
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| 366 | ## STDOUT:
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| 367 | [two = $two '
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| 368 | three = $three ''
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| 369 | \u{61}
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| 370 | ]
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| 371 | [two = $two '
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| 372 | three = $three ''
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| 373 | a
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| 374 | ]
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| 375 | [two = $two '
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| 376 | three = $three ''
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| 377 | a a
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| 378 | ]
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| 379 | ## END
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| 380 |
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| 381 |
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| 382 | #### """ and $""" in Command Mode
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| 383 |
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| 384 | var two=2
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| 385 | var three=3
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| 386 |
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| 387 | echo ""a # test lookahead
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| 388 |
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| 389 | echo --
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| 390 | echo """
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| 391 | one "
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| 392 | two = $two ""
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| 393 | three = $three
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| 394 | """
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| 395 |
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| 396 | # optional $ prefix
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| 397 | echo --
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| 398 | echo $"""
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| 399 | one "
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| 400 | two = $two ""
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| 401 | three = $three
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| 402 | """
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| 403 |
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| 404 | echo --
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| 405 | tac <<< """
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| 406 | one "
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| 407 | two = $two ""
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| 408 | three = $three
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| 409 | """
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| 410 |
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| 411 | shopt --unset parse_triple_quote
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| 412 |
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| 413 | echo --
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| 414 | echo """
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| 415 | one
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| 416 | two = $two
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| 417 | three = $three
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| 418 | """
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| 419 |
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| 420 |
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| 421 | ## STDOUT:
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| 422 | a
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| 423 | --
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| 424 | one "
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| 425 | two = 2 ""
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| 426 | three = 3
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| 427 |
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| 428 | --
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| 429 | one "
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| 430 | two = 2 ""
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| 431 | three = 3
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| 432 |
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| 433 | --
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| 434 |
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| 435 | three = 3
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| 436 | two = 2 ""
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| 437 | one "
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| 438 | --
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| 439 |
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| 440 | one
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| 441 | two = 2
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| 442 | three = 3
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| 443 |
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| 444 | ## END
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| 445 |
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| 446 |
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| 447 | #### ''' in Command Mode
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| 448 |
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| 449 | echo ''a # make sure lookahead doesn't mess up
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| 450 |
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| 451 | echo --
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| 452 | echo '''
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| 453 | two = $two
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| 454 | '
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| 455 | '' '
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| 456 | \u{61}
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| 457 | '''
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| 458 | ## STDOUT:
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| 459 | a
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| 460 | --
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| 461 | two = $two
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| 462 | '
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| 463 | '' '
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| 464 | \u{61}
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| 465 |
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| 466 | ## END
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| 467 |
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| 468 | #### r''' in Command Mode, Expression mode
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| 469 |
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| 470 | echo r'''\'''
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| 471 |
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| 472 | var x = r'''\'''
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| 473 | echo $x
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| 474 |
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| 475 | shopt --unset parse_ysh_string
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| 476 |
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| 477 | echo r'''\'''
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| 478 |
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| 479 | ## STDOUT:
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| 480 | \
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| 481 | \
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| 482 | r\
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| 483 | ## END
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| 484 |
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| 485 |
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| 486 | #### ''' in Here Doc
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| 487 |
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| 488 | tac <<< '''
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| 489 | two = $two
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| 490 | '
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| 491 | '' '
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| 492 | \u{61}
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| 493 | '''
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| 494 |
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| 495 | ## STDOUT:
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| 496 |
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| 497 | \u{61}
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| 498 | '' '
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| 499 | '
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| 500 | two = $two
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| 501 | ## END
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| 502 |
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| 503 | #### ''' without parse_triple_quote
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| 504 |
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| 505 | shopt --unset parse_triple_quote
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| 506 |
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| 507 | echo '''
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| 508 | two = $two
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| 509 | \u{61}
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| 510 | '''
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| 511 |
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| 512 | ## STDOUT:
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| 513 |
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| 514 | two = $two
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| 515 | \u{61}
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| 516 |
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| 517 | ## END
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| 518 |
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| 519 | #### here doc with quotes
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| 520 |
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| 521 | # This has 3 right double quotes
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| 522 |
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| 523 | cat <<EOF
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| 524 | "hello"
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| 525 | ""
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| 526 | """
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| 527 | EOF
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| 528 |
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| 529 |
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| 530 | ## STDOUT:
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| 531 | "hello"
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| 532 | ""
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| 533 | """
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| 534 | ## END
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| 535 |
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| 536 | #### triple quoted and implicit concatenation
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| 537 |
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| 538 | # Should we allow this? Or I think it's possible to make it a syntax error
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| 539 |
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| 540 | echo '''
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| 541 | single
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| 542 | '''zz
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| 543 |
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| 544 | echo """
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| 545 | double
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| 546 | """zz
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| 547 | ## status: 2
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| 548 | ## stdout-json: ""
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