mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-12-12 16:53:37 +08:00
bdfbdaafcc
This stops you from doing e.g. ```fish set pager command less echo foo | $pager ``` Currently, it would run the command *builtin*, which can only do `--search` and similar, and would most likely end up printing its own help. That means it very very likely won't work, and the code is misguided - it is trying to defeat function resolution in a way that won't do what the author wants it to. The alternative would be to make the command *builtin* execute the command, *but* 1. That would require rearchitecting and rewriting a bunch of it and the parser 2. It would be a large footgun, in that `set EDITOR command foo` will only ever work inside fish, but $EDITOR is also used outside. I don't want to add a feature that we would immediately have to discourage.
343 lines
7.7 KiB
Fish
343 lines
7.7 KiB
Fish
# RUN: %fish -C 'set -g fish %fish' %s
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# caret position (#5812)
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printf '<%s>\n' ($fish -c ' $f[a]' 2>&1)
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# CHECK: <fish: Invalid index value>
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# CHECK: < $f[a]>
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# CHECK: < ^>
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printf '<%s>\n' ($fish -c 'if $f[a]; end' 2>&1)
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# CHECK: <fish: Invalid index value>
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# CHECK: <if $f[a]; end>
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# CHECK: < ^>
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set a A
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set aa AA
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set aaa AAA
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echo {$aa}a{1,2,3}(for a in 1 2 3; echo $a; end)
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#CHECK: AAa11 AAa21 AAa31 AAa12 AAa22 AAa32 AAa13 AAa23 AAa33
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# basic expansion test
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echo {}
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echo {apple}
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echo {apple,orange}
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#CHECK: {}
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#CHECK: {apple}
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#CHECK: apple orange
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# expansion tests with spaces
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echo {apple, orange}
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echo { apple, orange, banana }
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#CHECK: apple orange
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#CHECK: apple orange banana
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# expansion with spaces and cartesian products
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echo \'{ hello , world }\'
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#CHECK: 'hello' 'world'
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# expansion with escapes
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for phrase in {good\,, beautiful ,morning}
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echo -n "$phrase "
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end | string trim
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echo
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for phrase in {goodbye\,,\ cruel\ ,world\n}
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echo -n $phrase
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end
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#CHECK: good, beautiful morning
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#CHECK: goodbye, cruel world
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# dual expansion cartesian product
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echo { alpha, beta }\ {lambda, gamma }, | string replace -r ',$' ''
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#CHECK: alpha lambda, beta lambda, alpha gamma, beta gamma
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# expansion with subshells
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for name in { (echo Meg), (echo Jo) }
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echo $name
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end
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#CHECK: Meg
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#CHECK: Jo
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# subshells with expansion
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for name in (for name in {Beth, Amy}; printf "$name\n"; end)
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printf "$name\n"
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end
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#CHECK: Beth
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#CHECK: Amy
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echo {{a,b}}
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#CHECK: {a} {b}
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# Test expansion of variables
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# We don't use the test utility function of the same name because we want
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# different behavior. Specifically, that the expansion of any variables or
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# other strings before we are invoked produce the expected expansion.
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function expansion --description 'Prints argument count followed by arguments'
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echo (count $argv) $argv
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end
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set -l foo
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expansion "$foo"
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expansion $foo
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expansion "prefix$foo"
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expansion prefix$foo
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1 prefix
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#CHECK: 0
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1 prefix
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#CHECK: 0
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set -l foo ''
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expansion "$foo"
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expansion $foo
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expansion "prefix$foo"
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expansion prefix$foo
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#CHECK: 1
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#CHECK: 1
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#CHECK: 1 prefix
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#CHECK: 1 prefix
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1 prefix
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#CHECK: 0
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set -l foo bar
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set -l bar
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1 prefix
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#CHECK: 0
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set -l bar baz
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1 baz
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#CHECK: 1 baz
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#CHECK: 1 prefixbaz
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#CHECK: 1 prefixbaz
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set -l bar baz quux
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1 baz quux
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#CHECK: 2 baz quux
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#CHECK: 1 prefixbaz quux
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#CHECK: 2 prefixbaz prefixquux
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set -l foo bar fooer fooest
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set -l fooer
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set -l fooest
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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#CHECK: 1 baz quux fooer fooest
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#CHECK: 2 baz quux
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#CHECK: 1 prefixbaz quux fooer fooest
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#CHECK: 2 prefixbaz prefixquux
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set -l fooer ''
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expansion $$foo
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expansion prefix$$foo
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#CHECK: 3 baz quux
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#CHECK: 3 prefixbaz prefixquux prefix
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# Slices
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set -l foo bar '' fooest
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expansion "$$foo"
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expansion $$foo
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expansion "prefix$$foo"
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expansion prefix$$foo
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expansion $foo[-5..2] # No result, because the starting index is invalid and we force-reverse.
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expansion $foo[-2..-1]
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expansion $foo[-10..-5]
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expansion (printf '%s\n' $foo)[-5..2]
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expansion (printf '%s\n' $foo)[-2..-1]
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expansion (printf '%s\n' $foo)[-10..-5]
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expansion (echo one)[2..-1]
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#CHECK: 1 baz quux fooest
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#CHECK: 2 baz quux
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#CHECK: 1 prefixbaz quux fooest
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#CHECK: 2 prefixbaz prefixquux
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#CHECK: 0
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#CHECK: 2 fooest
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#CHECK: 0
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#CHECK: 0
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#CHECK: 2 fooest
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#CHECK: 0
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#CHECK: 0
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set -l foo
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expansion "$foo[1]"
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expansion $foo[1]
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expansion "$foo[-1]"
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expansion $foo[-1]
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expansion "$foo[2]"
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expansion $foo[2]
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expansion "$foo[1 2]"
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expansion $foo[1 2]
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expansion "$foo[2 1]"
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expansion $foo[2 1]
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1
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#CHECK: 0
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#CHECK: 1
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#CHECK: 0
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set -l foo a b c
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expansion $foo[17]
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expansion $foo[-17]
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expansion $foo[17..18]
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expansion $foo[4..-2]
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#CHECK: 0
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#CHECK: 0
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#CHECK: 0
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#CHECK: 0
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set -l foo a
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expansion $foo[2..-1]
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#CHECK: 0
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expansion $foo[0]
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
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#CHECKERR: expansion $foo[0]
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#CHECKERR: ^
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# see https://github.com/fish-shell/fish-shell/issues/8213
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expansion $foo[1..0]
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
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#CHECKERR: expansion $foo[1..0]
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#CHECKERR: ^
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expansion $foo[-0]
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): array indices start at 1, not 0.
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#CHECKERR: expansion $foo[-0]
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#CHECKERR: ^
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echo "$foo[d]"
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
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#CHECKERR: echo "$foo[d]"
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#CHECKERR: ^
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echo $foo[d]
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
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#CHECKERR: echo $foo[d]
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#CHECKERR: ^
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echo ()[1]
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# No output
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echo ()[d]
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): Invalid index value
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#CHECKERR: echo ()[d]
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#CHECKERR: ^
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set -l outer out1 out2
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set -l inner 1 2
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echo $outer[$inner[2]]
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#CHECK: out2
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echo $outer[$inner[2..1]]
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#CHECK: out2 out1
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# Percent self
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echo %selfNOT NOT%self \%self "%self" '%self'
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echo %self | string match -qr '^\\d+$'
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#CHECK: %selfNOT NOT%self %self %self %self
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echo "All digits: $status"
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#CHECK: All digits: 0
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set paren ')'
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echo $$paren
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#CHECKERR: {{.*}}expansion.fish (line {{\d+}}): $) is not a valid variable in fish.
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#CHECKERR: echo $$paren
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#CHECKERR: ^
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# Test tilde expansion
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# On OS X, /tmp is symlinked to /private/tmp
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# $PWD is our best bet for resolving it
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set -l saved $PWD
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cd (mktemp -d)
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set tmpdir $PWD
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cd $saved
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mkdir $tmpdir/realhome
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ln -s $tmpdir/realhome $tmpdir/linkhome
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set expandedtilde (env HOME=$tmpdir/linkhome $fish -c 'echo ~')
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if test $expandedtilde != $tmpdir/linkhome
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echo '~ expands to' $expandedtilde ' - expected ' $tmpdir/linkhome
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end
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rm $tmpdir/linkhome
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rmdir $tmpdir/realhome
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rmdir $tmpdir
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# Test path variables
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set TEST_DELIMITER one two three
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set TEST_DELIMITER_PATH one two three
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echo TEST_DELIMITER: $TEST_DELIMITER "$TEST_DELIMITER"
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echo TEST_DELIMITER_PATH: $TEST_DELIMITER_PATH "$TEST_DELIMITER_PATH"
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#CHECK: TEST_DELIMITER: one two three one two three
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#CHECK: TEST_DELIMITER_PATH: one two three one:two:three
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set testvar ONE:TWO:THREE
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echo "Not a path: $testvar" (count $testvar)
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#CHECK: Not a path: ONE:TWO:THREE 1
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set --path testvar $testvar
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echo "As a path: $testvar" (count $testvar)
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#CHECK: As a path: ONE:TWO:THREE 3
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set testvar "$testvar:FOUR"
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echo "Appended path: $testvar" (count $testvar)
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#CHECK: Appended path: ONE:TWO:THREE:FOUR 4
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set --unpath testvar $testvar
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echo "Back to normal variable: $testvar" (count $testvar)
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#CHECK: Back to normal variable: ONE TWO THREE FOUR 4
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# Test fatal syntax errors
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$fish -c 'echo $,foo'
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#CHECKERR: fish: Expected a variable name after this $.
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#CHECKERR: echo $,foo
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#CHECKERR: ^
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$fish -c 'echo {'
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#CHECKERR: fish: Unexpected end of string, incomplete parameter expansion
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#CHECKERR: echo {
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#CHECKERR: ^
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$fish -c 'echo {}}'
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#CHECKERR: fish: Unexpected '}' for unopened brace expansion
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#CHECKERR: echo {}}
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#CHECKERR: ^
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printf '<%s>\n' ($fish -c 'command (asd)' 2>&1)
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#CHECK: <fish: command substitutions not allowed in command position. Try var=(your-cmd) $var ...>
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#CHECK: <command (asd)>
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#CHECK: < ^~~~^>
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true
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printf '<%s>\n' ($fish -c 'echo "$abc["' 2>&1)
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#CHECK: <fish: Invalid index value>
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#CHECK: <echo "$abc[">
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#CHECK: < ^>
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set -l pager command less
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echo foo | $pager
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#CHECKERR: checks/expansion.fish (line 339): The expanded command is a keyword.
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#CHECKERR: echo foo | $pager
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#CHECKERR: ^~~~~^
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