tempy.py 文件源码

def yield_domgroups(items, kwitems, reverse=False):
    """Flattens the given items/kwitems.
    Yields index and DOMGroup after flattening and a DOMGroup.
    "reverse" parameter inverts the flattened yielding.
    """
    verse = (1, -1)[reverse]
    if isinstance(items, GeneratorType):
        items = list(items)
    unnamed = (DOMGroup(None, item) for item in items[::verse])
    named = (DOMGroup(k, v) for k, v in list(kwitems.items())[::verse])
    contents = (unnamed, named)[::verse]
    for i, group in enumerate(chain(*contents)):
        if isinstance(group.obj, DOMElement):
            # Is the DOMGroup is a single DOMElement and we have a name we set his name accordingly
            group.obj._name = group.name
        yield i, group