46     return get_function

    46     return get_function

    47 

    47 

    48 

    48 

    49 def gen_get_string(delimiter):

    49 def gen_get_string(delimiter):

    50     STRING_MODEL = re.compile("%(delimiter)s([^%(delimiter)s]*)%(delimiter)s$" % {"delimiter": delimiter})

    50     STRING_MODEL = re.compile("%(delimiter)s([^%(delimiter)s]*)%(delimiter)s$" % {"delimiter": delimiter})

    51     def get_string(v):

    52     def get_string(v):

    52         result = STRING_MODEL.match(v)

    53         result = STRING_MODEL.match(v)

    53         if result is not None:

    54         if result is not None:

    54             return result.group(1)

    55             return result.group(1)

    55         return None

    56         return None