您好，请问如何支持正则表达式的多模式匹配？

[UCASREN]

如下。

TreeMap<String, String> map = new TreeMap<String, String>();
        String[] keyArray = new String[] {"he*r"};
        for (String key : keyArray) {
            map.put(key, key);
        }
        // Build an AhoCorasickDoubleArrayTrie
        AhoCorasickDoubleArrayTrie<String> acdat = new AhoCorasickDoubleArrayTrie<String>();
        acdat.build(map);
        // Test it
        final String text = "uheers";
        List<AhoCorasickDoubleArrayTrie.Hit<String>> wordList = acdat.parseText(text);
        for (Hit<String> tmp : wordList) {
            System.out.println(tmp.begin);
            System.out.println(tmp.end);
            System.out.println(tmp.value);            
            System.out.println();
        }

我想提取出"heer"，当前是无法提取的。如果想做到如此，该如何修改源码？从哪入手比较好，请指教，多谢~~~