{{ $s := (readFile (printf "code/%s" (.Get 1))) }}
{{ $t := split $s "\n" }}
{{ if not (eq (int (.Get 2)) 1) }}
{{ .Scratch.Set "u" (after (sub (int (.Get 2)) 1) $t) }}
{{ else }}
{{ .Scratch.Set "u" $t }}
{{ end }}
{{ $v := first (add (sub (int (.Get 3)) (int (.Get 2))) 1) (.Scratch.Get "u") }}
{{ highlight (delimit $v "\n") (.Get 0) "" }}