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e717b13e75
We detect use of unsupported features like $@ by scanning string tokens
as a whole. With quoted command substitution, this has false positives,
as reported in [1]. We already recursively run the same error checks on
command substitutions, so limit the remaining checks to the gaps in-between
command substitutions.
[1]: 5f94dfd094/.config/fish/README/bug.md (cannot-use-dollar-anchor-in-sed-regex-in-quoted-command-substitution)
81 lines
1.6 KiB
Fish
81 lines
1.6 KiB
Fish
#RUN: %fish %s
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echo $(echo 1\n2)
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# CHECK: 1 2
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# Command substitution inside double quotes strips trailing newline.
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echo "a$(echo b)c"
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# CHECK: abc
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# Nesting
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echo "$(echo "$(echo a)")"
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# CHECK: a
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echo "$(echo $(echo b))"
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# CHECK: b
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echo "$(echo multiple).$(echo command).$(echo substitutions)"
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# CHECK: multiple.command.substitutions
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test -n "$()" || echo "empty list is interpolated to empty string"
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# CHECK: empty list is interpolated to empty string
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# Variables in command substitution output are not expanded.
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echo "$(echo \~ \$HOME)"
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# CHECK: ~ $HOME
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echo "$(printf %s 'quoted command substitution multiline output
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line 2
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line 3
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')"
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# CHECK: quoted command substitution multiline output
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# CHECK: line 2
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# CHECK: line 3
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echo trim any newlines "$(echo \n\n\n)" after cmdsub
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#CHECK: trim any newlines after cmdsub
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echo i{1, (echo 2), "$(echo 3)"}
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# CHECK: i1 i2 i3
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echo "$(echo index\nrange\nexpansion)[2]"
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#CHECK: range
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echo "$(echo '"')"
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#CHECK: "
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echo "$(echo $(echo 1) ())"
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#CHECK: 1
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echo "$(echo 1))"
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# CHECK: 1)
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echo "($(echo 1))"
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# CHECK: (1)
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echo "$(echo 1) ( $(echo 2)"
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# CHECK: 1 ( 2
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echo "$(echo A)B$(echo C)D"(echo E)
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# CHECK: ABCDE
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echo "($(echo A)B$(echo C))"
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# CHECK: (ABC)
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echo "quoted1""quoted2"(echo unquoted3)"$(echo quoted4)_$(echo quoted5)"
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# CHECK: quoted1quoted2unquoted3quoted4_quoted5
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var=a echo "$var$(echo b)"
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# CHECK: ab
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# Make sure we don't swallow an escaped dollar.
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echo \$(echo 1)
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# CHECK: $1
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echo "\$(echo 1)"
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# CHECK: $(echo 1)
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echo "\$$(echo 1)"
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# CHECK: $1
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# Make sure we don't error on an escaped $@ inside a quoted cmdsub.
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echo "$(echo '$@')"
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# CHECK: $@
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