parse_query_string.clj

; HTTP query string parser, Clojure

(defn parse-query-string
  "Parses a querystring into a hash"
  [qs]
  (into {} (map #(vec (.split % "=")) (.split qs "&"))))

parse_query_string.rb

# HTTP query string parser, Ruby

def parse_query_string(qs)
  qs.split('&').inject({}){|h,p| k,v = p.split('='); h[k] = v; h}
end

query_string.erl

-module(query_string).
-export([parse/1]).

parse(String) ->
  lists:map(fun(P) -> L = string:tokens(P, "="), 
                      {lists:nth(1, L), lists:nth(2, L)} end, 
            string:tokens(String, "&")).