Source Code for Module chianti.fortranformat._misc

 1  '''
 
 2  Miscellaneous functions, classes etc
 
 3  ''' 
 4  import sys 
 5  IS_PYTHON3 = sys.version_info[0] >= 3 
 6  
 
 7 -class has_next_iterator(object): 
 8    '''
 
 9    A wrapper class for iterators so that the .has_next() method is implemented
 
10  
 
11    See - http://stackoverflow.com/questions/1966591/hasnext-in-python-iterators
 
12    ''' 
13 -  def __init__(self, it): 
14      self.it = iter(it) 
15      self._has_next = None 
16 -  def __iter__(self): return self 
17 -  def __next__(self): 
18      if self._has_next: 
19        result = self._the_next 
20      else: 
21        if IS_PYTHON3: 
22          result = next(self.it) 
23        else: 
24          result = self.it.next() 
25      self._has_next = None 
26      return result 
27 -  def next(self): 
28      if self._has_next: 
29        result = self._the_next 
30      else: 
31        if IS_PYTHON3: 
32          result = next(self.it) 
33        else: 
34          result = self.it.next() 
35      self._has_next = None 
36      return result 
37 -  def has_next(self): 
38      if self._has_next is None: 
39        try:  
40          if IS_PYTHON3: 
41            self._the_next = next(self.it) 
42          else: 
43            self._the_next = self.it.next() 
44        except StopIteration: self._has_next = False 
45        else: self._has_next = True 
46      return self._has_next 
47  
 
48  
 
49 -def expand_edit_descriptors(eds): 
50      expanded_eds = [] 
51      for ed in eds: 
52          if hasattr(ed, 'repeat') and (ed.repeat is not None): 
53              expanded_eds.extend(ed.repeat * [ed]) 
54          else: 
55              expanded_eds.append(ed) 
56      return expanded_eds 
57