add repeat

src/clj_jtwig/standard_functions.clj

@@ -1,7 +1,8 @@
 (ns clj-jtwig.standard-functions
   "standard function definitions. these are functions that are not yet included in JTwig's standard function
    library and are just here to fill in the gaps for now."
-  (:import (org.apache.commons.lang3.text WordUtils))
+  (:import (org.apache.commons.lang3.text WordUtils)
+           (org.apache.commons.lang3 StringUtils))
   (:use [clojure.pprint]))
 
 ; we are using a separate map to hold the standard functions instead of using deftwigfn, etc. because doing it this
@@ -83,6 +84,10 @@
    {:fn (fn [low high & [step]]
           (range low high (or step 1)))}
 
+   "repeat"
+   {:fn (fn [s n]
+          (StringUtils/repeat s n))}
+
    "rest"
    {:fn (fn [sequence]
           ; matching behaviour of jtwig's first/last implementation

test/clj_jtwig/functions_test.clj

@@ -330,6 +330,12 @@
     (is (= (render "{{ range(1, 5, 2) }}" nil)
            "[1, 3]")))
 
+  (testing "repeat"
+    (is (= (render "{{ repeat('x', 10) }}" nil)
+           "xxxxxxxxxx"))
+    (is (= (render "{{ repeat('x', 0) }}" nil)
+           "")))
+
   (testing "rest"
     (is (= (render "{{ [1, 2, 3, 4, 5]|rest }}" nil)
            "[2, 3, 4, 5]")))