diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/clj/clojure/string.clj | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/clj/clojure/string.clj b/src/clj/clojure/string.clj index dea65b07..a50c8753 100644 --- a/src/clj/clojure/string.clj +++ b/src/clj/clojure/string.clj @@ -70,8 +70,17 @@ (defn ^String join "Returns a string of all elements in coll, separated by separator. Like Perl's join." - [^String separator coll] - (apply str (interpose separator coll))) + ([coll] + (apply str coll)) + ([separator [x & more]] + (loop [sb (StringBuilder. (str x)) + more more + sep (str separator)] + (if more + (recur (-> sb (.append sep) (.append (str (first more)))) + (next more) + sep) + (str sb))))) (defn ^String chop "Removes the last character of string, does nothing on a zero-length |