?? convertor.java
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package gep.export;import gep.Expression;import java.util.ArrayList;import java.util.Iterator;import java.util.List;/** * 將表達(dá)式樹轉(zhuǎn)換為節(jié)點(diǎn)樹 */public class Convertor{ private int id = 0; public Node convert(Expression expression) { id = 0; Node node = convert1(expression); return node; } private Node convert1(Expression expression) { Node node = new Node(); node.id = id++; node.expression = expression; node.label = expression.getCode(); List subNodes = new ArrayList(); List subExpressions = expression.getChildren(); for (Iterator i=subExpressions.iterator(); i.hasNext(); ) { Expression subExpression = (Expression) i.next(); Node subNode = convert1(subExpression); subNodes.add(subNode); } node.children = subNodes; return node; }}
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