brag/add-mult.rkt at 386052ac688b4e2476e6bacc312fdaef1f9dd0d5 - brag - Gitea: Git with a cup of tea

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 #lang brag
 expr : term (/'+' term)*
 @term : factor (/'*' @factor)*
 factor : ("0" | "1" | "2" | "3"
        |  "4" | "5" | "6" | "7"
        | "8" | "9")+