úÎwportablealpha&Krzysztof Langner <klangner@gmail.com> Safe-InferredParse formula L parseFormula "C2H4" `shouldBe` Molecule [(element 6, 2), (element 1, 4)]        radium-formula-parser-0.2Radium.FormulaParserMoleculeElementIon parseFormulaionformula subformulaelementsymbolnumber ionNumber