| 1 | # Test ${x/pat*/replace}
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| 2 | # TODO: can add $BUSYBOX_ASH
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| 3 |
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| 4 | ## oils_failures_allowed: 2
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| 5 | ## compare_shells: bash mksh zsh
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| 6 |
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| 7 | #### Pattern replacement
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| 8 | v=abcde
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| 9 | echo ${v/c*/XX}
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| 10 | ## stdout: abXX
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| 11 |
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| 12 | #### Pattern replacement on unset variable
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| 13 | echo -${v/x/y}-
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| 14 | echo status=$?
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| 15 | set -o nounset # make sure this fails
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| 16 | echo -${v/x/y}-
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| 17 | ## STDOUT:
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| 18 | --
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| 19 | status=0
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| 20 | ## BUG mksh STDOUT:
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| 21 | # patsub disrespects nounset!
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| 22 | --
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| 23 | status=0
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| 24 | --
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| 25 | ## status: 1
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| 26 | ## OK ash status: 2
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| 27 | ## BUG mksh status: 0
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| 28 |
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| 29 | #### Global Pattern replacement with /
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| 30 | s=xx_xx_xx
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| 31 | echo ${s/xx?/yy_} ${s//xx?/yy_}
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| 32 | ## stdout: yy_xx_xx yy_yy_xx
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| 33 |
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| 34 | #### Left Anchored Pattern replacement with #
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| 35 | s=xx_xx_xx
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| 36 | echo ${s/?xx/_yy} ${s/#?xx/_yy}
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| 37 | ## stdout: xx_yy_xx xx_xx_xx
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| 38 |
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| 39 | #### Right Anchored Pattern replacement with %
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| 40 | s=xx_xx_xx
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| 41 | echo ${s/?xx/_yy} ${s/%?xx/_yy}
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| 42 | ## STDOUT:
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| 43 | xx_yy_xx xx_xx_yy
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| 44 | ## END
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| 45 | ## BUG ash STDOUT:
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| 46 | xx_yy_xx xx_xx_xx
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| 47 | ## END
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| 48 |
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| 49 | #### Replace fixed strings
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| 50 | s=xx_xx
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| 51 | echo ${s/xx/yy} ${s//xx/yy} ${s/#xx/yy} ${s/%xx/yy}
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| 52 | ## STDOUT:
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| 53 | yy_xx yy_yy yy_xx xx_yy
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| 54 | ## END
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| 55 | ## BUG ash STDOUT:
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| 56 | yy_xx yy_yy xx_xx xx_xx
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| 57 | ## END
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| 58 |
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| 59 | #### Replace is longest match
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| 60 | # If it were shortest, then you would just replace the first <html>
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| 61 | s='begin <html></html> end'
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| 62 | echo ${s/<*>/[]}
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| 63 | ## stdout: begin [] end
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| 64 |
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| 65 | #### Replace char class
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| 66 | s=xx_xx_xx
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| 67 | echo ${s//[[:alpha:]]/y} ${s//[^[:alpha:]]/-}
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| 68 | ## stdout: yy_yy_yy xx-xx-xx
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| 69 | ## N-I mksh stdout: xx_xx_xx xx_xx_xx
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| 70 |
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| 71 | #### Replace hard glob
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| 72 | s='aa*bb+cc'
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| 73 | echo ${s//\**+/__} # Literal *, then any sequence of characters, then literal +
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| 74 | ## stdout: aa__cc
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| 75 |
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| 76 | #### ${v/} is empty search and replacement
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| 77 | v=abcde
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| 78 | echo -${v/}-
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| 79 | echo status=$?
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| 80 | ## status: 0
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| 81 | ## STDOUT:
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| 82 | -abcde-
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| 83 | status=0
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| 84 | ## END
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| 85 | ## BUG ash STDOUT:
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| 86 | -abcde -
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| 87 | status=0
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| 88 | ## END
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| 89 |
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| 90 | #### ${v//} is empty search and replacement
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| 91 | v='a/b/c'
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| 92 | echo -${v//}-
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| 93 | echo status=$?
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| 94 | ## status: 0
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| 95 | ## STDOUT:
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| 96 | -a/b/c-
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| 97 | status=0
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| 98 | ## END
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| 99 | ## BUG ash STDOUT:
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| 100 | -a/b/c -
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| 101 | status=0
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| 102 | ## END
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| 103 |
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| 104 | #### Confusing unquoted slash matches bash (and ash)
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| 105 | x='/_/'
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| 106 | echo ${x////c}
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| 107 |
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| 108 | echo ${x//'/'/c}
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| 109 |
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| 110 | ## STDOUT:
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| 111 | c_c
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| 112 | c_c
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| 113 | ## END
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| 114 | ## BUG mksh STDOUT:
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| 115 | /_/
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| 116 | c_c
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| 117 | ## END
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| 118 | ## BUG zsh STDOUT:
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| 119 | /c//c_/c/
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| 120 | /_/
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| 121 | ## END
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| 122 | ## BUG ash STDOUT:
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| 123 | c_c
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| 124 | /_/ /c
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| 125 | ## END
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| 126 |
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| 127 | #### Synthesized ${x///} bug (similar to above)
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| 128 |
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| 129 | # found via test/parse-errors.sh
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| 130 |
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| 131 | x='slash / brace } hi'
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| 132 | echo 'ambiguous:' ${x///}
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| 133 |
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| 134 | echo 'quoted: ' ${x//'/'}
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| 135 |
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| 136 | # Wow we have all combination here -- TERRIBLE
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| 137 |
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| 138 | ## STDOUT:
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| 139 | ambiguous: slash brace } hi
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| 140 | quoted: slash brace } hi
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| 141 | ## END
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| 142 | ## BUG mksh STDOUT:
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| 143 | ambiguous: slash / brace } hi
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| 144 | quoted: slash brace } hi
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| 145 | ## END
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| 146 | ## BUG zsh STDOUT:
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| 147 | ambiguous: slash / brace } hi
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| 148 | quoted: slash / brace } hi
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| 149 | ## END
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| 150 | ## BUG ash STDOUT:
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| 151 | ambiguous: slash brace } hi
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| 152 | quoted: slash / brace } hi
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| 153 | ## END
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| 154 |
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| 155 |
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| 156 | #### ${v/a} is the same as ${v/a/} -- no replacement string
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| 157 | v='aabb'
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| 158 | echo ${v/a}
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| 159 | echo status=$?
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| 160 | ## STDOUT:
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| 161 | abb
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| 162 | status=0
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| 163 | ## END
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| 164 |
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| 165 | #### Replacement with special chars (bug fix)
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| 166 | v=xx
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| 167 | echo ${v/x/"?"}
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| 168 | ## stdout: ?x
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| 169 |
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| 170 | #### Replace backslash
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| 171 | v='[\f]'
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| 172 | x='\f'
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| 173 | echo ${v/"$x"/_}
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| 174 |
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| 175 | # mksh and zsh differ on this case, but this is consistent with the fact that
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| 176 | # \f as a glob means 'f', not '\f'. TODO: Warn that it's a bad glob?
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| 177 | # The canonical form is 'f'.
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| 178 | echo ${v/$x/_}
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| 179 |
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| 180 | echo ${v/\f/_}
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| 181 | echo ${v/\\f/_}
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| 182 | ## STDOUT:
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| 183 | [_]
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| 184 | [\_]
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| 185 | [\_]
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| 186 | [_]
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| 187 | ## END
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| 188 | ## BUG mksh/zsh STDOUT:
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| 189 | [_]
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| 190 | [_]
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| 191 | [\_]
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| 192 | [_]
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| 193 | ## END
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| 194 |
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| 195 | #### Replace right ]
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| 196 | v='--]--'
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| 197 | x=']'
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| 198 | echo ${v/"$x"/_}
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| 199 | echo ${v/$x/_}
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| 200 | ## STDOUT:
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| 201 | --_--
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| 202 | --_--
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| 203 | ## END
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| 204 |
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| 205 | #### Substitute glob characters in pattern, quoted and unquoted
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| 206 |
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| 207 | # INFINITE LOOP in ash!
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| 208 | case $SH in ash) exit ;; esac
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| 209 |
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| 210 | g='*'
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| 211 | v='a*b'
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| 212 | echo ${v//"$g"/-}
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| 213 | echo ${v//$g/-}
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| 214 | ## STDOUT:
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| 215 | a-b
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| 216 | -
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| 217 | ## END
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| 218 | ## BUG zsh STDOUT:
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| 219 | a-b
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| 220 | a-b
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| 221 | ## END
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| 222 |
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| 223 | #### Substitute one unicode character (UTF-8)
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| 224 | export LANG='en_US.UTF-8'
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| 225 |
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| 226 | s='_μ_ and _μ_'
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| 227 |
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| 228 | # ? should match one char
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| 229 |
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| 230 | echo ${s//_?_/foo} # all
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| 231 | echo ${s/#_?_/foo} # left
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| 232 | echo ${s/%_?_/foo} # right
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| 233 |
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| 234 | ## STDOUT:
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| 235 | foo and foo
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| 236 | foo and _μ_
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| 237 | _μ_ and foo
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| 238 | ## END
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| 239 | ## BUG mksh STDOUT:
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| 240 | _μ_ and _μ_
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| 241 | _μ_ and _μ_
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| 242 | _μ_ and _μ_
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| 243 | ## END
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| 244 |
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| 245 | #### When LC_ALL=C, pattern ? doesn't match multibyte character
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| 246 | export LC_ALL='C'
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| 247 |
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| 248 | s='_μ_ and _μ_'
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| 249 |
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| 250 | # ? should match one char
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| 251 |
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| 252 | echo ${s//_?_/foo} # all
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| 253 | echo ${s/#_?_/foo} # left
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| 254 | echo ${s/%_?_/foo} # right
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| 255 | echo
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| 256 |
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| 257 | a='_x_ and _y_'
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| 258 |
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| 259 | echo ${a//_?_/foo} # all
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| 260 | echo ${a/#_?_/foo} # left
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| 261 | echo ${a/%_?_/foo} # right
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| 262 |
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| 263 | ## STDOUT:
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| 264 | _μ_ and _μ_
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| 265 | _μ_ and _μ_
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| 266 | _μ_ and _μ_
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| 267 |
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| 268 | foo and foo
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| 269 | foo and _y_
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| 270 | _x_ and foo
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| 271 | ## END
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| 272 |
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| 273 | #### ${x/^} regression
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| 274 | x=abc
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| 275 | echo ${x/^}
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| 276 | echo ${x/!}
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| 277 |
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| 278 | y=^^^
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| 279 | echo ${y/^}
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| 280 | echo ${y/!}
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| 281 |
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| 282 | z=!!!
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| 283 | echo ${z/^}
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| 284 | echo ${z/!}
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| 285 |
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| 286 | s=a^b!c
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| 287 | echo ${s/a^}
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| 288 | echo ${s/b!}
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| 289 |
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| 290 | ## STDOUT:
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| 291 | abc
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| 292 | abc
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| 293 | ^^
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| 294 | ^^^
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| 295 | !!!
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| 296 | !!
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| 297 | b!c
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| 298 | a^c
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| 299 | ## END
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| 300 |
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| 301 | #### \(\) in pattern (regression)
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| 302 |
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| 303 | # Not extended globs
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| 304 | x='foo()'
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| 305 | echo 1 ${x//*\(\)/z}
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| 306 | echo 2 ${x//*\(\)/z}
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| 307 | echo 3 ${x//\(\)/z}
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| 308 | echo 4 ${x//*\(\)/z}
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| 309 |
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| 310 | ## STDOUT:
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| 311 | 1 z
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| 312 | 2 z
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| 313 | 3 fooz
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| 314 | 4 z
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| 315 | ## END
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| 316 |
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| 317 | #### patsub with single quotes and hyphen in character class (regression)
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| 318 |
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| 319 | # from Crestwave's bf.bash
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| 320 |
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| 321 | program='^++--hello.,world<>[]'
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| 322 | program=${program//[^'><+-.,[]']}
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| 323 | echo $program
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| 324 | ## STDOUT:
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| 325 | ++--.,<>[]
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| 326 | ## END
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| 327 | ## BUG mksh STDOUT:
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| 328 | helloworld
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| 329 | ## END
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| 330 |
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| 331 | #### patsub with [^]]
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| 332 |
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| 333 | # This is a PARSING divergence. In Oil we match [], rather than using POSIX
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| 334 | # rules!
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| 335 |
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| 336 | pat='[^]]'
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| 337 | s='ab^cd^'
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| 338 | echo ${s//$pat/z}
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| 339 | ## STDOUT:
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| 340 | ab^cd^
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| 341 | ## END
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| 342 |
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| 343 | #### [a-z] Invalid range end is syntax error
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| 344 | x=fooz
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| 345 | pat='[z-a]' # Invalid range. Other shells don't catch it!
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| 346 | #pat='[a-y]'
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| 347 | echo ${x//$pat}
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| 348 | echo status=$?
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| 349 | ## stdout-json: ""
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| 350 | ## status: 1
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| 351 | ## OK bash/mksh/zsh/ash STDOUT:
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| 352 | fooz
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| 353 | status=0
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| 354 | ## END
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| 355 | ## OK bash/mksh/zsh/ash status: 0
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| 356 |
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| 357 |
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| 358 | #### Pattern is empty $foo$bar -- regression for infinite loop
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| 359 |
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| 360 | x=-foo-
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| 361 |
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| 362 | echo ${x//$foo$bar/bar}
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| 363 |
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| 364 | ## STDOUT:
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| 365 | -foo-
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| 366 | ## END
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| 367 |
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| 368 | # feels like memory unsafety in ZSH
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| 369 | ## BUG zsh STDOUT:
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| 370 | bar-barfbarobarobar-
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| 371 | ## END
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| 372 |
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| 373 | #### Chromium from http://www.oilshell.org/blog/2016/11/07.html
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| 374 |
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| 375 | case $SH in zsh) exit ;; esac
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| 376 |
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| 377 | HOST_PATH=/foo/bar/baz
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| 378 | echo ${HOST_PATH////\\/}
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| 379 |
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| 380 | # The way bash parses it
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| 381 | echo ${HOST_PATH//'/'/\\/}
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| 382 |
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| 383 | ## STDOUT:
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| 384 | \/foo\/bar\/baz
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| 385 | \/foo\/bar\/baz
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| 386 | ## END
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| 387 |
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| 388 | # zsh has crazy bugs
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| 389 | ## BUG zsh stdout-json: ""
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| 390 |
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| 391 | ## BUG mksh STDOUT:
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| 392 | /foo/bar/baz
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| 393 | \/foo\/bar\/baz
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| 394 | ## END
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| 395 |
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| 396 |
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| 397 | #### ${x//~homedir/}
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| 398 |
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| 399 | path=~/git/oilshell
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| 400 |
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| 401 | # ~ expansion occurs
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| 402 | #echo path=$path
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| 403 |
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| 404 | echo ${path//~/z}
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| 405 |
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| 406 | echo ${path/~/z}
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| 407 |
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| 408 | ## STDOUT:
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| 409 | z/git/oilshell
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| 410 | z/git/oilshell
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| 411 | ## END
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| 412 |
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| 413 |
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