MARC 21 and GLAM Recipes

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MARC 21 Recipes

• Export-As-MARCXML

2xx

3XX

GLAM Recipes

Convert Roman numerals to Arabic

Given a column that contains Roman numbers, you can convert them using the following Clojure snippet

Column 1	output
vii	7
v	5
xix	19
iv	4

(defn ro2ar [r]
  (->> (reverse (.toUpperCase r))
       (map {\M 1000 \D 500 \C 100 \L 50 \X 10 \V 5 \I 1})
       (partition-by identity)
       (map (partial apply +))
       (reduce #(if (< %1 %2) (+ %1 %2) (- %1 %2)))))
(ro2ar value)

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