/// <summary>
/// 将给定的字符类合并，并返回更新的字符类的映射表。
/// </summary>
/// <param name="group">字符类的分组信息。</param>
public Dictionary <int, int> MergeCharClass(IEnumerable <IEnumerable <int> > group)
{
Dictionary <int, int> map = new Dictionary <int, int>();
List <CharSet> newList = new List <CharSet>();
foreach (IEnumerable <int> charClasses in group)
{
int idx = -1;
CharSet set = null;
foreach (int cc in charClasses)
{
if (idx == -1)
{
set = this.charClassList[cc];
idx = newList.Count;
map[cc] = idx;
newList.Add(set);
}
else
{
map[cc] = idx;
set.UnionWith(this.charClassList[cc]);
}
}
}
this.charClassList = newList;
return(map);
}
