/// <summary>
/// �ִʴ��������캯��
/// </summary>
/// <param name="input">�ı���ȡ��</param>
public ThesaurusSpliter(TextReader input)
{
this.input = input;
//����������.ģ�����뷨���������Ĺ���
assoStream = new AssociateStream();
ReadBuffer();
}
/// <summary>
/// ���ַ����н������ʼ��
/// </summary>
/// <param name="word">�ַ�����</param>
/// <param name="length">��Ч�ַ�����</param>
/// <returns></returns>
public static int Match(Char[] word, int length)
{
int nStart = 0;
//���ϼ��
if (FamilyNameRule.Test(((int)word[0] << 2) + (int)word[1]))
{
nStart = 2;
}
else if (FamilyNameRule.Test((int)word[0]) && !LinkRule.Test(word[1]))
{
nStart = 1;
}
else
{
AssociateStream assoStream = new AssociateStream();
//���ʼ��,������������������д���ƥ��
if (!LinkRule.Test(word[1]))
{
for (nStart = 1; nStart < length; )
{
assoStream.Associate(word[nStart++]);
if (!assoStream.IsBegin && assoStream.Associate(word[nStart]))
{
return nStart - 1;
}
else
{
assoStream.Reset();
}
}
}
//�������
for (nStart = 0; nStart < length - 1;)
{
assoStream.Reset();
if (!LinkRule.Test(word[nStart++]) && PlaceRule.Test(word[nStart]))
{
return nStart + 1;
}
}
return 1;
}
//��������ϲ���ʣ���ַ���С��3���ַ�����������һ����������
if(length - nStart <= 2)
{
return length;
}
//������ij��ȴ������ϵij�����ʼ�����Ч�����ֳ���
if (length > nStart)
{
int nEnd = nStart + 1;
AssociateStream assoStream = new AssociateStream();
//�����һ�����������ֻ��ߵ�ǰ�ַ�����һ��������ϳ�һ����֪����ǰ�ֱ�ȷ��Ϊʱ������һ����
if (LinkRule.Test(word[nEnd + 1]) || !(assoStream.Associate(word[nEnd]) && assoStream.Associate(word[nEnd + 1])))
{
nEnd++;
}
nStart = nEnd;
}
return nStart;
}
