import?java.util.*;

public?class?ExFormula?{
????public?ExFormula（）?{
????}

????public?String?getLeft（）?{
????????return?left;
????}

????public?Vector?getRight（）?{
????????return?right;
????}

????public?int?getDot_index（）?{
????????return?dot_index;
????}

????public?int?getIndex（）?{
????????return?index;
????}

????public?void?setLeft（String?left）?{
????????this.left?=?left;
????}

????public?void?setRight（Vector?right）?{
????????this.right?=?right;
????}

????public?void?setDot_index（int?dot_index）?{
????????this.dot_index?=?dot_index;
????}

????public?void?setIndex（int?index）?{
????????this.index?=?index;
????}

????public?void?add（String?symbol）{
????????right.add（symbol）;
????}

????public?String?retrieveAccStr（）{
????????if（dot_index????????????return?（String）right.elementAt（dot_index）;//沒有進行下屆判定
????????}
????????else
????????????return?null;
????}

????//接收字符后的key
????public?String?getPostAccKey（）{
????????String?keystr?=?left;
????????Iterator?formiter?=?right.iterator（）;
????????while?（formiter.hasNext（））?{
????????????keystr?=?keystr?+?formiter.next（）;
????????}
????????int?tmp_index?=?dot_index;
????????tmp_index++;//index++
????????keystr?=?keystr?+?“_“?+?tmp_index;
????????return?keystr;
????}

????private?String?left;//文法的左部
????private?Vector?right?=?new?Vector（）;//文法的右部
????private?int?index;//文法的索引，唯一標識
????private?int?dot_index;//文法中“.“所在的位置

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????????0??2011-03-04?09:50??項目集規范族\first.txt

?????文件?????????79??2011-02-22?10:00??項目集規范族\in.txt

?????文件??????????0??2011-03-04?09:50??項目集規范族\last.txt

?????文件????????113??2011-02-22?10:01??項目集規范族\signal.txt

?????文件???????1518??2011-03-04?09:19??項目集規范族\src\ExFormula.java

?????文件????????228??2011-02-22?11:31??項目集規范族\src\ExFormula.jbx

?????文件????????233??2011-02-21?11:24??項目集規范族\src\FirstLastConstant.java

?????文件????????809??2011-02-17?10:38??項目集規范族\src\Formula.java

?????文件???????4196??2011-03-04?09:02??項目集規范族\src\HeapSort.java

?????文件??????22202??2011-03-04?09:51??項目集規范族\src\main.java

?????文件????????514??2011-02-22?15:30??項目集規范族\src\main.jbx

?????文件????????465??2011-02-22?18:21??項目集規范族\src\StateData.java

?????文件????????141??2011-02-22?19:38??項目集規范族\src\StateData.jbx

?????文件????????646??2011-03-04?09:27??項目集規范族\src\TransData.java

?????文件????????180??2011-02-22?19:38??項目集規范族\src\TransData.jbx

?????目錄??????????0??2011-11-17?14:00??項目集規范族\src

?????文件??????????0??2011-02-22?19:38??項目集規范族\生成狀態集和狀態集之間的遷移表.txt

?????文件???????4391??2011-02-22?19:30??項目集規范族\項目集.jpx

?????目錄??????????0??2011-11-17?14:00??項目集規范族

-----------?---------??----------?-----??----

????????????????35715????????????????????19