package org.ictclas4j.segment;
import java.util.ArrayList;
import org.ictclas4j.bean.Atom;
import org.ictclas4j.util.Utility;
import com.gftech.util.GFString;
/**
* ԭ�ӷִ�
* @author sinboy
* @since 2007.6.1
*/
public class AtomSeg {
private String str;
private ArrayList<Atom> atoms;
public AtomSeg(String src) {
this.str = src;
atoms = atomSplit();
}
/**
* <pre>
* ԭ�ӷִ�,�ֳ�һ�����Ķ����ַ�,��ʼ��־�ͽ�����־��һ��ԭ�ӵ�λ����.
* ����:ʼ##ʼ��˵��ȷʵ����ĩ##ĩ-->ʼ##ʼ �� ˵ �� ȷ ʵ �� �� ĩ##ĩ
* </pre>
*
* @param str
* Դ�ַ���
* @return
*/
private ArrayList<Atom> atomSplit() {
ArrayList<Atom> result = null;
if (str != null && str.length() > 0) {
String sAtom = "";
result = new ArrayList<Atom>();
String[] ss = GFString.atomSplit(str);
int index = str.indexOf(Utility.SENTENCE_BEGIN);
if (index == 0) {
Atom atom = new Atom();
atom.setWord(Utility.SENTENCE_BEGIN);
atom.setLen(Utility.SENTENCE_BEGIN.length());
atom.setPos(Utility.CT_SENTENCE_BEGIN);
result.add(atom);
index += Utility.SENTENCE_BEGIN.length();
}
if (index == -1)
index = 0;
for (int i = index; i < ss.length; i++) {
if (Utility.SENTENCE_END.equals(str.substring(i))) {
Atom atom = new Atom();
atom.setWord(Utility.SENTENCE_END);
atom.setLen(Utility.SENTENCE_END.length());
atom.setPos(Utility.CT_SENTENCE_END);
result.add(atom);
break;
}
String s = ss[i];
sAtom += s;
int curType = Utility.charType(s);
if (".".equals(s)
&& (i + 1 < ss.length && (Utility.charType(ss[i + 1]) == Utility.CT_NUM || GFString
.isNumeric(ss[i+1]))))
curType = Utility.CT_NUM;
// ����Ǻ��֡��ָ�����
if (curType == Utility.CT_CHINESE || curType == Utility.CT_INDEX || curType == Utility.CT_DELIMITER
|| curType == Utility.CT_OTHER) {
Atom atom = new Atom();
atom.setWord(s);
atom.setLen(s.length());
atom.setPos(curType);
result.add(atom);
sAtom = "";
}
// ��������֡���ĸ�����ֽڷ��ţ�������ڵ���Щ��Ϊһ��ԭ�ӡ����磺����SHX-123�ͺŵ��ֻ��������е�SHX-123����һ��ԭ��
else {
int nextType = 255;// ��һ���ַ�������
if (i < ss.length - 1)
nextType = Utility.charType(ss[i + 1]);
if (nextType != curType || i == ss.length - 1) {
Atom atom = new Atom();
atom.setWord(sAtom);
atom.setLen(sAtom.length());
atom.setPos(curType);
result.add(atom);
sAtom = "";
}
}
}
}
return result;
}
public ArrayList<Atom> getAtoms() {
return atoms;
}
}