Created
August 19, 2013 09:43
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| class Node | |
| include Enumerable | |
| # ... | |
| def each(&block) | |
| nodes = [self] | |
| until nodes.empty? | |
| node = nodes.shift | |
| yield node | |
| nodes.unshift(*node.children) if node.children.any? | |
| end | |
| end | |
| end |
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