elvish_config/aliases/get-uid.elv

fn -value {|v|
  use re
  var p = (re:find '^(\d+)\((\w+)\)$' $v)
  if (and (has-key $p groups) (== (count $p[groups]) 3)) {
    put [
      &number=$p[groups][1][text]
      &text=$p[groups][2][text]
    ]
  }
}

fn -values {|v|
  use str
  var @vv = (str:split ',' $v)
  if (== (count $vv) 1) {
    -value $vv[0]
  } else {
    put [ (each $-value~ $vv) ]
  }
}

fn -get-id {
  use str
  var id = [&]
  str:split ' ' (id) | each {|e|
    var @p = (str:split '=' $e)
    if (== (count $p) 2) {
      set id[$p[0]] = (-values $p[1])
    }
  }
  put $id
}

fn -get {|k|
  var id = (-get-id)
  if (has-key $id $k) {
    put $id[$k]
  }
}

fn -is-root {||
  == (-get uid)[number] 0
}

edit:add-var get-id~ $-get-id~
edit:add-var get-uid~ {|| -get uid }
edit:add-var get-gid~ {|| -get gid }
edit:add-var get-groups~ {|| -get groups; -get groupes }
edit:add-var is-root~ $-is-root~