diff --git a/a.rb b/a.rb
index 55fc6aa..f287f46 100755
--- a/a.rb
+++ b/a.rb
@@ -6,7 +6,7 @@ $: << 'lib'
 require 'biju'
 require 'pp'
 
-str = 'www.ruby-lang.org and bonjour www.rubygarden.org coucou'
+#str = 'www.ruby-lang.org and bonjour www.rubygarden.org coucou'
 #re = /
 #      (               # capture the hostname in $1
 #        (?:           # these parens for grouping only
@@ -18,23 +18,29 @@ str = 'www.ruby-lang.org and bonjour www.rubygarden.org coucou'
 #        [\w-] +       # now trailing domain part
 #      )               # end of $1 capture
 #     /x               # /x for nice formatting
-re = /
-      (               # capture the hostname in $1
-        (?:           # these parens for grouping only
-          (?! [-_] )  # lookahead for neither underscore nor dash
-          [\w-] +     # hostname component
-          \.          # and the domain dot
-        ) +           # now repeat that whole thing a bunch of times
-        [A-Za-z]      # next must be a letter
-        [\w-] +       # now trailing domain part
-      )               # end of $1 capture
-     /x               # /x for nice formatting
+#str = '((www.ruby-lang.org), (www.rubygarden.org), (www.co.com) ucou)'
+strs = []
+strs << '((www.ruby-lang.org), (www.rubygarden.org), (www.co.com) (u)cou)'
+strs << '(www.ruby-lang.org), (www.rubygarden.org), (www.co.com) (u)'
 
-str.gsub! re do      # pass a block to execute replacement
-  pp $1
+re =  /
+        \(             # parenthese
+          (
+            #[^\(\)]*?
+            [\(\)]*?
+            .*?
+          )
+        \)             # parenthese
+      /x
+
+strs.each do |str|
+  pp "STR : #{str}"
+  str.gsub! re do      # pass a block to execute replacement
+    pp $1
+  end
 end
 
-#exit
+exit
 
 puts "here"
 hayes = Biju::HayesSms.new
diff --git a/lib/biju/hayes.rb b/lib/biju/hayes.rb
index 6f68bb1..ff5d0bb 100644
--- a/lib/biju/hayes.rb
+++ b/lib/biju/hayes.rb
@@ -7,20 +7,20 @@ module Biju
     #end
 
     def attention
-      basic_command { |response| response =~ /OK/ }
-      #basic_command { |response| true }
+      at_command { |response| response =~ /OK/ }
+      #at_command { |response| true }
     end
 
     def init_modem
-      basic_command('Z') { |response| response =~ /OK/ }
+      at_command('Z') { |response| response =~ /OK/ }
     end
 
     def text_mode(enabled = true)
-      extended_command('CMGF', enabled) { |response| response =~ /OK/ }
+      at_command('+CMGF', enabled) { |response| response =~ /OK/ }
     end
 
     def prefered_storage?
-      extended_command('CPMS') { |response| response =~ /OK/ }
+      at_command('+CPMS') { |response| response =~ /OK/ }
     end
 
     def answer=(ret)
@@ -34,8 +34,8 @@ module Biju
 
     private
 
-    def basic_command(cmd = nil, options = {}, *args, &block)
-      option_prefix = options[:prefix] || nil
+    def at_command(cmd = nil, *args, &block)
+      option_prefix = nil #options[:prefix] || nil
       cmd_root = ['AT', cmd].compact.join(option_prefix)
       cmd_args = args.compact.map { |arg| to_hayes_string(arg) } unless args.empty?
       self.command = [cmd_root, cmd_args].compact.join('=')
@@ -43,13 +43,10 @@ module Biju
       command
     end
 
-    def extended_command(cmd = nil, *args, &block)
-      basic_command(cmd, {:prefix => '+'}, *args, &block)
-    end
-
     def hayes_to_obj(str)
     end
 
+    # OPTIMIZE : add () to array
     def to_hayes_string(arg)
       case arg
       when String
@@ -66,7 +63,7 @@ module Biju
 
   class HayesSms < Hayes
     def unlock_pin(pin)
-      send_command("AT+CPIN=#{to_hayes_string(pin)}") { |response| response =~ /OK/ }
+      at_command("+CPIN=#{to_hayes_string(pin)}") { |response| response =~ /OK/ }
     end
   end
 end