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https://github.com/fish-shell/fish-shell
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6500765256
Meaning empty variables, command substitutions that don't print anything. A switch without an argument ```fish switch case ... end ``` is still a syntax error, and more than one argument is still a runtime error. The none-argument matches either an empty-string `case ''` or a catch-all `case '*'`. Fixes #5677. Fixes #4943.
71 lines
1.4 KiB
Fish
71 lines
1.4 KiB
Fish
#RUN: %fish -C "set fish %fish" %s
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# Check that switch with an argument expanding to nothing still works.
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switch $foo
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case a
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echo a
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case ''
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echo very little
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case '*'
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echo Nothin
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case ''
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echo banana
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end
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#CHECK: very little
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switch (true)
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case a
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echo a
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case ''
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echo very little
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case '*'
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echo Nothin
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case ''
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echo banana
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end
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#CHECK: very little
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switch (echo)
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case a
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echo a
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case ''
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echo very little
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case '*'
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echo Nothin
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case ''
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echo banana
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end
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#CHECK: very little
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# Multiple arguments is still an error, we've not decided on good behavior for this.
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switch (echo; echo; echo)
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case a
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echo a
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case ""
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echo very little
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case "*"
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echo Nothin
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case ""
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echo banana
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end
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#CHECKERR: {{.*/?}}switch.fish (line {{\d+}}): switch: Expected at most one argument, got 3
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#CHECKERR:
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#CHECKERR: switch (echo; echo; echo)
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#CHECKERR: ^
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# As is no argument at all.
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# Because this is a syntax error, we need to start a sub-fish or we wouldn't execute anything else.
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$fish -c '
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switch
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case a
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echo a
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case ""
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echo very little
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case "*"
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echo Nothin
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case ""
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echo banana
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end
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'
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#CHECKERR: fish: 'case' builtin not inside of switch block
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#CHECKERR: case a
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#CHECKERR: ^
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