如何从Fish Shell的函数返回一个数组

我试图从函数返回一个数组.以下代码无效.

function testArray
   echo 1 2 3 4
end

set r (testArray)

echo $r[2]
# error

使用鱼壳从函数返回多个值的正确方法是什么？

如 ridiculous_fish所述,您可以使用本机线分割机制.

result of a command substitution becomes a list by splitting on newlines ($IFS)

所以

>每行列出一个项目;
然后在命令替换中捕获.

清单

function __list_public_keys
    for key in ~/.ssh/*.pub
        echo $key
    end
end

产量

$__list_public_keys
/home/ed8/.ssh/id_rsa.blabla.pub
/home/ed8/.ssh/id_rsa.pub
/home/ed8/.ssh/id_rsa.test.pub

捕获

function __add_keys
    set keys (__list_public_keys)

    echo "[" $keys "]"
end

产量

$__add_keys
[/home/ed8/.ssh/id_rsa.blabla.pub] [/home/ed8/.ssh/id_rsa.pub] [/home/ed8/.ssh/id_rsa.test.pub]