vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
45 lines
1.0 KiB
Python
45 lines
1.0 KiB
Python
def peek_and_iter(items):
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if not items:
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return None, None
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items = iter(items)
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try:
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peeked = next(items)
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except StopIteration:
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return None, None
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def chain():
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yield peeked
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yield from items
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return chain(), peeked
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def iter_many(items, onempty=None):
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if not items:
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if onempty is None:
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return
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if not callable(onempty):
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raise onEmpty
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items = onempty(items)
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yield from iter_many(items, onempty=None)
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return
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items = iter(items)
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try:
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first = next(items)
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except StopIteration:
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if onempty is None:
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return
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if not callable(onempty):
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raise onEmpty
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items = onempty(items)
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yield from iter_many(items, onempty=None)
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else:
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try:
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second = next(items)
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except StopIteration:
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yield first, False
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return
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else:
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yield first, True
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yield second, True
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for item in items:
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yield item, True
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