brag/add-mult.rkt at e18a3399feeebe6d862f5cd34cba83d403f3e638 - brag - Gitea: Git with a cup of tea

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