--- a/tools.py Mon Feb 04 19:49:48 2008 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,81 +0,0 @@
-#
-"""
-Helper functions and classes
-"""
-import re
-
-def str_num_cmp(s1,s2):
- """
- string comparator function that will put 'toto_10' after 'toto_2'
- Also works for strings like 'toto_1_et_23er25'.
- """
- r = re.compile(r'((?<=\d)\D+|(?<=\D)\d+)')
- r1= r.split(s1)
- r2= r.split(s2)
- r1=[not x.isdigit() and x or int(x) for x in r1 if x!='']
- r2=[not x.isdigit() and x or int(x) for x in r2 if x!='']
- return cmp(r1,r2)
-
-
-class AbstractRegister(object):
- _instance = None
- _registered_type = None
- def __new__(cls):
- # implements a singleton
- if cls._instance is None:
- #debug('Instanciating %s', cls.__name__)
- cls._instance = super(AbstractRegister, cls).__new__(cls)
- cls._instance.registered = {}
- cls._instance.accepts = set()
- return cls._instance
-
- def add(self, cls):
- assert issubclass(cls, self._registered_type)
- if cls is self._registered_type:
- return
- if cls._accepts is None:
- return
- #assert isinstance(cls._accepts, (basestring, tuple))
-
- #debug("Registerered %s for %s", cls.__name__)
- if not isinstance(cls._accepts, tuple):
- cls._accepts = (cls._accepts,)
- for key in cls._accepts:
- key = self._get_typ(key)
- #debug(" new key = %s", key)
- self.registered.setdefault(key, []).append(cls)
- self.accepts.add(key)
-
- def _get_typ(self, typ):
- if not isinstance(typ, basestring):
- if not isinstance(typ, type):
- return None
- typ = typ.__name__
- return typ
-
- def __contains__(self, val):
- val = self._get_typ(val)
- return val in self.accepts
-
- def get_class(self, typ):
- item = typ
- if not isinstance(typ, type):
- typ = typ.__class__
- name = typ.__name__
- #debug("Looking a widget for %s", typ.__name__)
- orig_typ = typ
- while typ is not None:
- if typ.__name__ in self.registered:
- for w in self.registered[typ.__name__]:
- if w._filter is None or w._filter(item):
- #debug("Widget for %s is %s", typ.__name__, w)
- return w#self.registered[typ.__name__]
- if typ.__bases__:
- typ = typ.__bases__[0]
- if typ == object:
- typ = None
- elif typ.__name__ in ("ObjectItem_", "AbstractListItem_"):
- typ = orig_typ._type
- else:
- typ = None
- raise ValueError('No registered class for %s' % (name))