void DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
IndexGenerate.CreateIndex(backgroundWorker1);
}
public ArrayList GetMetaphoneList(string word)
{
int upper = (int)(m_metaphoneFile.Length / 4) - 1; // 和数组一样 最后一个元素下标是总数减一
int lower = 0;
int pos = 0;
int ret;
string tmp;
var list = new ArrayList();
string search = IndexGenerate.GetMetaphone(word);
if (search == null)
{
return(list);
}
do // TODO 可以提取到一个函数中
{
pos = (upper + lower) / 2;
tmp = IndexGenerate.GetMetaphone(GetWordByMetaIndex(pos)); //TODO 这里错了 不能用普通的查找表来找MP
ret = String.Compare(search, tmp, StringComparison.OrdinalIgnoreCase);
if (ret == 0)
{
break;
}
else if (ret < 0)
{
upper = pos - 1;
pos = (upper + lower) / 2;
}
else
{
lower = pos + 1;
pos = (upper + lower) / 2;
}
} while (upper >= lower);
if (ret == 0)
{
// 向前找第一个
for (int i = 1; i < 100; i++)
{
string meta = IndexGenerate.GetMetaphone(GetWordByMetaIndex(pos - i));
if (meta != search)
{
pos = pos - i + 1;
break;
}
}
// 按顺序插入输出
for (int i = 0; i < 100; i++)
{
string out_word = GetWordByMetaIndex(pos + i);
string meta = IndexGenerate.GetMetaphone(out_word);
if (meta != search)
{
break;
}
list.Add(out_word);
}
}
list.Sort();
return(list);
}