diff --git a/src/rougail/user-data-environment/data.py b/src/rougail/user-data-environment/data.py
index 0b1ab16..457e66f 100644
--- a/src/rougail/user-data-environment/data.py
+++ b/src/rougail/user-data-environment/data.py
@@ -20,7 +20,6 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 """
 from .helper import get_rougail_environment
-from .helper import get_rougail_environment_var, get_rougail_environment_dict
 
 from rougail.object_model import CONVERT_OPTION
 from rougail.config import RougailConfig
@@ -51,20 +50,17 @@ class RougailUserDataEnvironment:
         else:
             self.errors = []
             self.warnings = []
-        # FIXME a enlever
-        # this variable will be used for generating warnings
-        # about unused ROUGAIL_ environment variables
-        self.unused_environment_var = get_rougail_environment_var()
 
     def run(self):
         self.config.property.read_write()
         self.parse(self.config)
         self.config.property.read_only()
-        # FIXME à refaire avec le dico directement
-        # if there are unused environment variables
-        if len(self.unused_environment_var):
-            unused_environment_var_str = " ".join(self.unused_environment_var)
-            self.warnings.append("the rougail environment variables were not used : " + unused_environment_var_str)
+        # about unused ROUGAIL_ environment variables
+        # FIXME
+#        if len(self.rougail_environment_vars):
+#            unused_env_var_str = " ".join(self.rougail_environment_vars.keys())
+#            self.warnings.append("the following rougail environment variables "
+#                                 "are not used : " + unused_env_var_str)
 
     def parse(self, config):
         for option in config:
@@ -82,9 +78,9 @@ class RougailUserDataEnvironment:
         option_name = option.path()
         # the bash variable are in upper case
         option_name = option_name.upper()
-        # FIXME : A REFAIRE
-        # this is used only for warning purposes
-        if option_name not in self.unused_environment_var:
+        rougail_environment_vars = get_rougail_environment()
+        # if the option is not in the bash environment, do nothing
+        if option_name not in rougail_environment_vars.keys():
             return
         # actually the rougail type **is not** the same thing as
         # the tiramisu type, which is in `option.type`
@@ -94,11 +90,7 @@ class RougailUserDataEnvironment:
         # carefull, the coercion function 'func' could be None
         # -> in this case, do nothing
         type_obj = CONVERT_OPTION.get(option_type, {}).get("func")
-        self.unused_environment_var.remove(option_name)
-        # let's parse the environment variables values
-        # FIXME enlever les deux fonction de helper
-        # FIXME et faire un pop (un del plutot) option_bash_value = self.unused_environment_var.pop(option_name)
-        option_bash_value = get_rougail_environment_dict()[option_name]
+        option_bash_value = rougail_environment_vars.pop(option_name)
         if ismulti:
             # here we expect the bash option value of a multi to be coma separated:
             option_bash_value = [opt.strip() for opt in option_bash_value.split(",")] 
@@ -107,3 +99,4 @@ class RougailUserDataEnvironment:
         elif type_obj:
             option_bash_value = type_obj(option_bash_value)
         option.value.set(option_bash_value)
+        print(rougail_environment_vars)
diff --git a/src/rougail/user-data-environment/helper.py b/src/rougail/user-data-environment/helper.py
index 5e32324..55118c6 100644
--- a/src/rougail/user-data-environment/helper.py
+++ b/src/rougail/user-data-environment/helper.py
@@ -20,28 +20,17 @@ You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 """
-
 import os
 
 from .config import rougail_environment_var
 
-def get_rougail_environment_var():
-    "lists all rougail environment variables (that is, wich startswith ROUGAIL_)"
-    all_envvar = os.environ
-    return [envvar.replace(rougail_environment_var, '') for envvar in all_envvar if envvar.startswith(rougail_environment_var)]
-
-def get_rougail_environment_dict():
-    "rougail environment variables as a key/value dict"
-    rougail_environment_dict = dict()
-    for var in get_rougail_environment_var():
-        rougail_environment_dict[var] = os.environ[rougail_environment_var + var]
-    return rougail_environment_dict
     
 def get_rougail_environment():
     """gets all the rougail environment variables and their values
-    
+
+    :sample: {'VARINT': '5', 'VARNAME34': '58, 22', 'VARNAME2': 'tata', 
+             'VARNAME1': 'titi', 'MYFAMILY.VARNAME3': 'spam'}
     :returns: rougail environment variables as a key/value dict
-              {MYVARIABLE: my_value}
     """
     # first we look at all environment variables
     all_envvar = os.environ
@@ -49,6 +38,7 @@ def get_rougail_environment():
     rougail_envvar = [envvar.replace(rougail_environment_var, '') 
                       for envvar in all_envvar 
                       if envvar.startswith(rougail_environment_var)]
+    rougail_environment_dict = dict()
     for var in rougail_envvar:
         rougail_environment_dict[var] = os.environ[rougail_environment_var + var]
     return rougail_environment_dict