If you need to traverse the alphabet in Scala automatically, you can create a loop that proceses the single letters.
The following code was used in a Play Template (view) to traverse the alphabet and show the differnt links depending on the existence of a single letter in the cityLetters sequence. If the letter is in the sequence, the link is active, otherwise inactive.
@(cityLetters: Seq[String] = Seq.empty) @defining('A' to 'Z'){ alphabet => @for(l <- alphabet) { @defining(l.toString) { letter => @if(cityLetters.contains(letter)) { <a class="btn btn-default" href="@routes.CityController.listing(letter)">@letter</a> } else { <a class="btn btn-default" disabled="disabled" href="#">@letter</a> } } } }