Marc Chantreux schrieb:
> hello guys,
>
> i want each lines of the output of a shell command to become a key of a
> dict. I wote this code:
>
> let t = {}
> for k in split( system("echo foo; echo bar "), '\n' )
> let t[k] = 1
> endfor
>
> but i don't like it: as the loop is here to populate the dictionnary, i
> would like to use something more appropriate. In perl for exemple, the
> map function enables you to write
>
> my %a = map { $_ => 1 } split /\n/, qx< echo foo; echo bar>
>
> vim has the equivalent of $_: it's called v:val, so i tried to use map
> or filter with attempts looking like that:
>
> let t = map( split( system("echo foo; echo bar "), '\n' ), { v:val : 1 } )
>
> and yet i just wonder if it's possible.
>
> regards,
> marc
It is possible, the second argument to map() must be a string:
:h map()
:let t = map(["foo", "bar"], '{v:val : 1}')
--
Andy
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