2144     def __add__(self, x):

  2144     def __add__(self, x):

  2145         s = self.set()

  2145         s = self.set()

  2146         l = [r for r in x if r not in s]

  2146         l = [r for r in x if r not in s]

  2147         return baseset(list(self) + l)

  2147         return baseset(list(self) + l)

  2148 

  2148 

  2149 class lazyset(object):

  2152 class lazyset(object):

  2150     """Duck type for baseset class which iterates lazily over the revisions in

  2153     """Duck type for baseset class which iterates lazily over the revisions in

  2151     the subset and contains a function which tests for membership in the

  2154     the subset and contains a function which tests for membership in the

  2152     revset

  2155     revset

  2153     """

  2156     """

  2208         self._subset.reverse()

  2211         self._subset.reverse()

  2209 

  2212 

  2210     def set(self):

  2213     def set(self):

  2211         return set([r for r in self])

  2214         return set([r for r in self])

  2212 

  2215 

  2213 class orderedlazyset(lazyset):

  2219 class orderedlazyset(lazyset):

  2214     """Subclass of lazyset which subset can be ordered either ascending or

  2220     """Subclass of lazyset which subset can be ordered either ascending or

  2215     descendingly

  2221     descendingly

  2216     """

  2222     """

  2217     def __init__(self, subset, condition, ascending=True):

  2223     def __init__(self, subset, condition, ascending=True):

  2218         super(orderedlazyset, self).__init__(subset, condition)

  2224         super(orderedlazyset, self).__init__(subset, condition)

  2219         self._ascending = ascending

  2225         self._ascending = ascending

  2220 

  2229 

  2221 class generatorset(object):

  2230 class generatorset(object):

  2222     """Wrapper structure for generators that provides lazy membership and can

  2231     """Wrapper structure for generators that provides lazy membership and can

  2223     be iterated more than once.

  2232     be iterated more than once.

  2224     When asked for membership it generates values until either it finds the

  2233     When asked for membership it generates values until either it finds the

  2355             self._start, self._end = self._end + 1, self._start + 1

  2364             self._start, self._end = self._end + 1, self._start + 1

  2356 

  2365 

  2357     def set(self):

  2366     def set(self):

  2358         return self

  2367         return self

  2359 

  2368 

  2360 # tell hggettext to extract docstrings from these functions:

  2375 # tell hggettext to extract docstrings from these functions:

  2361 i18nfunctions = symbols.values()

  2376 i18nfunctions = symbols.values()