None of this is working very well; bit it is working a bit.

resources/cljs/clojure/string.cljs

@@ -0,0 +1,20 @@
+(ns clojure.string)
+
+;; NOTE NOTE NOTE! This is not the real `clojure.string`. It dummies enough
+;; of `clojure.string` to get other libraries I'm using running!
+
+(defn escape 
+  "Escape characters in `s` which HTML cannot be certain to directly render,
+   using hints from these `char-escapes`, which is expected to map characters
+   to string representations of appropriate HTML entity substutions."
+  [s char-escapes]
+  (apply str (map #(let [c (int %)
+                         m (char-escapes %)]
+                     (cond m m
+                           (<= 32 c 126) %
+                           :else (str "&#" c ";"))) s)))
+
+(defn replace 
+  "Replace all occurences of this `pattern` in this string `s` with this `replace`ment."
+  [s pattern replace]
+  (.replaceAll s pattern replace))