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967c1d51ee
Brace expansion with single words in it is quite useless - `HEAD@{0}`
expanding to `HEAD@0` breaks git.
So we complicate the rule slightly - if there is no variable expansion
or "," inside of braces, they are just treated as literal braces.
Note that this is technically backwards-incompatible, because
echo foo{0}
will now print `foo{0}` instead of `foo0`. However that's a
technicality because the braces were literally useless in that case.
Our tests needed to be adjusted, but that's because they are meant to
exercise this in weird ways.
I don't believe this will break any code in practice.
Fixes #5869.
35 lines
848 B
Fish
35 lines
848 B
Fish
# 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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# expansion tests with spaces
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echo {apple, orange}
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echo { apple, orange, banana }
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# expansion with spaces and cartesian products
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echo \'{ hello , world }\'
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# expansion with escapes
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for phrase in {good\,, beautiful ,morning}; echo -n "$phrase "; end | string trim;
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for phrase in {goodbye\,,\ cruel\ ,world\n}; echo -n $phrase; end;
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# whitespace within entries converted to spaces in a single entry
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for foo in {a, hello
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world }
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echo \'$foo\'
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end
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# dual expansion cartesian product
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echo { alpha, beta }\ {lambda, gamma }, | string replace -r ',$' ''
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# expansion with subshells
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for name in { (echo Meg), (echo Jo) }
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echo $name
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end
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# subshells with expansion
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for name in (for name in {Beth, Amy}; printf "$name\n"; end); printf "$name\n"; end
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echo {{a,b}}
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# vim: set ft=fish:
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