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Editing: dechain
/* Remove peninsulas - chains hanging off the main graph */ BEGIN { edge_t e; node_t v, n; } N [degree == 1] { n = $; while (n.degree == 1) { e = fstedge (n); if (e.head == n) v = e.tail; else v = e.head; delete($G,n); n = v; } }
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