/// <summary>
/// 向有穷自动机输入单词
/// </summary>
/// <param name="word">单词</param>
/// <param name="rank">单词的权重</param>
public void InsertWordToDfa(String word, int rank, object tag)
{
if (word == null || word == "")
{
return;
}
if (rank != 0)
{
_UseRank = true;
}
if (_WordsTbl[word] != null)
{
return;
}
T_InnerInfo innerInfo = new T_InnerInfo();
innerInfo.Rank = rank;
innerInfo.Tag = tag;
_WordsTbl[word] = innerInfo;
int pos;
T_DfaUnit unit = GetLastMatchUnit(word, out pos, tag);
bool needTrans = false;
for (int i = pos; i < word.Length; i++)
{
if (!needTrans && word[i] == '\\')
{
if (i == word.Length - 1)
{
//最后一个字符是转义符号
throw (new Exception("Last char is trans char!"));
}
//转义
needTrans = true;
continue;
}
if (i == word.Length - 1)
{
unit = AddChar(unit, word[i], word, needTrans, tag);
}
else
{
unit = AddChar(unit, word[i], null, needTrans, tag);
}
needTrans = false;
}
}
/// <summary>
/// 获取单词对应的标签
/// </summary>
/// <param name="word"></param>
/// <returns></returns>
public object GetTag(String word)
{
T_InnerInfo innerInfo = (T_InnerInfo)_WordsTbl[word];
if (innerInfo != null)
{
return(innerInfo.Tag);
}
else
{
return(null);
}
}
/// <summary>
/// 获取单词对应的权重级别
/// </summary>
/// <param name="word">单词</param>
/// <returns>级别,未找到单词，返回0</returns>
public int GetRank(String word)
{
if (!_UseRank)
{
return(0);
}
T_InnerInfo innerInfo = (T_InnerInfo)_WordsTbl[word];
if (innerInfo != null)
{
return(innerInfo.Rank);
}
else
{
return(0);
}
}
