Tanks for tips, but my question is about the second function.
Il giorno 21/giu/2013 20:50, "Josh Tilles" <merelyapseudo...@gmail.com> ha
scritto:
>
> It looks like you're trying using the percent symbol "%" for division.
I'm pretty sure fish uses % for process-expansion or something.
>
> You probably want:
>
> function _even
> math "$argv[1]%2 == 0"
> # could also do:
> # math " ( $argv[1] % 2 ) == 0"
> # if you wanted the spacing or operator precedence to be clearer.
> end
>
> See http://fishshell.com/docs/2.0/commands.html#math for a bit of an
explanation. (The parentheses on the left-hand side are optional, btw.)
>
> On Jun 21, 2013, at 2:33 PM, Costantino Giuliodori <
costantino.giuliod...@gmail.com> wrote:
>
>> why this type of function is not possible?
>>
>> function _even
>> test ($argv[1]%2) = 0
>> end
>>
>>
>> function _filter_array
>>
>> for a in $argv[2..]
>> if eval $argv[1]
>> set res $res $a
>> end
>> end
>>
>> end
>>
>> --
>> Costantino
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