Clojure: partly change an attribute value in Enlive -

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i have test.html file contains:

<div class="clj-test class1 class2 col-sm-4 class3">content</div>

a want define template changes part of html attr value:

(deftemplate test "public/templates/test.html" []   [:.clj-test] (enlive/set-attr :class (partly-change-attr #"col*" "col-sm-8")))

this render:

... <div class="clj-test class1 class2 col-sm-8 class3">content</div> ...

thanks help!

just found update-attr fn suggested christophe grand in thread:

(defn update-attr [attr f & args]   (fn [node] (apply update-in node [:attrs attr] f args)))

pretty cool! can use directly :

(enlive/deftemplate test-template "templates/test.html" []   [:.clj-test] (update-attr :class clojure.string/replace #"col-.*?(?=\s)" "col-sm-8"))

or build more specific fn:

(defn replace-attr [attr pattern s]       (update-attr attr clojure.string/replace pattern s))  (enlive/deftemplate test-template "templates/test.html" []       [:.clj-test] (replace-attr :class #"col-.*?(?=\s)" "col-sm-8"))

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