[fix] 删掉一部分无用函数

nfa/nfa.cpp

@@ -89,51 +89,6 @@ NFA RexToNFA() {
     return NFA(startState, endStates, allStates);
 }
 
-// 构造状态机
-NFA buildNFA(string filename) {
-    ifstream ifs(filename);
-    if (!ifs) {
-        cerr << "Cannot open file: " << filename << endl;
-        exit(EXIT_FAILURE);
-    }
-
-    int stateNum, inputNum;
-    ifs >> stateNum >> inputNum;
-
-    vector<State*> states(stateNum);
-    for (int i = 0; i < stateNum; i++) {
-        states[i] = new State(i);
-    }
-
-    State* startState = states[0];
-    set<State*, StatePtrCompare> endStates;
-    for (int i = 0; i < stateNum; i++) {
-        for (int j = 0; j < inputNum; j++) {
-            string targetStateIDs;
-            ifs >> targetStateIDs;
-            if (targetStateIDs.compare("#") != 0) {
-                stringstream ss(targetStateIDs);
-                string targetStateIDStr;
-                while (getline(ss, targetStateIDStr, ',')) {
-                    int targetStateID = stoi(targetStateIDStr);
-                    states[i]->addTransition(static_cast<InputCharType>(j), states[targetStateID]);
-                }
-            }
-        }
-    }
-
-    int endStateNum;
-    ifs >> endStateNum;
-    for (int i = 0; i < endStateNum; i++) {
-        int endStateID, wordTypeID;
-        ifs >> endStateID >> wordTypeID;
-        states[endStateID]->setFinalState(true, static_cast<WordType>(wordTypeID));
-        endStates.insert(states[endStateID]);
-    }
-
-    return NFA(startState, endStates, set<State*, StatePtrCompare>(states.begin(), states.end()));
-}
-
 void printNFA(const NFA& nfa) {
     cout << "Start state: " << nfa.startState->id << endl;
     cout << "End states: "<<endl;

nfa/nfa.h

@@ -160,8 +160,6 @@ public:
 // 正则表达式构建状态机
 NFA RexToNFA();
 void printNFA(const NFA& nfa);
-NFA buildNFA(string filename);
-NFA RexToNFA();
 set<State*, StatePtrCompare> move(const set<State*, StatePtrCompare>& states, InputCharType input);
 set<State*, StatePtrCompare> epsilonClosure(const set<State*, StatePtrCompare>& states);