cworddeal.java

java写的c 语言子集编辑器

package CWord;
import java.util.*;
import javax.swing.*;
import java.io.*;

/**
 * @author jjl
 * @Date 2008.12.31 17.09~21:20
 *
 *
 * the introduction for C WordDeal
 * 
 * main int while if for do else
 * 0    1   2     3  4   5   6
 * the user definition -1
 * the user number -2
 * the >=   -6
 * the <=   -5
 * the ==   -4
 * the !=   -3
 * the ++ -7
 * the -- -8
 */
public class CWordDeal extends Thread{
    StringBuffer strBuf;// The C Simple Word
    StringBuffer strDes;//the destination word here
    StringBuffer strCur;//the current word
    Vector vWord;//the usr word
    int vwNum=0;
    Vector vNum;//the user number
    int vnNum=0;
    Vector vCnst=new Vector();//the constrait
    int vcNum=0;
    listen l;
    int preId;//The Pointer to Point the previous  char of the user input 
    
    Boolean RUNFLAGS=true;//wheather the thread is running
    int status;// the current status
    final static int Number=0;//the number ,user define
    final static int UsrWord=1;//the  word , user define
    final static int InrWord=2;// the cal or logic
    final static int Begin=3;//the start for every word
    final static int End=4;//the program end
    final static int error=5;//the eror happen
    static int Row=0;
    public CWordDeal(){
        status=error;
        l=new listen();
        strBuf=new StringBuffer();
        strDes=new StringBuffer();
        strCur=new StringBuffer();
        vWord=new Vector();
        vNum=new Vector();
        this.start();
    }
    @Override
    public void run(){
        do{
            while(true){
               if(status==Begin){
                   l.addMessage("Start Deal C Word");
                   break;
               } 
            }
            dealCWord();
            if(status==error){
                l.addMessage("C Word exit with err");
            }
            if(status==End){
                l.addMessage("C word Anaysics End!");
                System.out.println(strDes);
            }
        }while(RUNFLAGS);
    }
    public void dsyCWordDeal(){
        RUNFLAGS=false;
    }
    public StringBuffer getStrDes(){
        startDealCWord();
        StringBuffer  stb=new StringBuffer();
        stb=strDes;
        strDes.delete(0, strDes.length());
        preId=0;
//        this.TestNumberTableAndUserTable();
        return stb;
    }
    public Vector getvUsr(){
        return vWord;
    }
    public Vector getvNum(){
        return vNum;
    }
    protected void startDealCWord(){
        status=Begin;
    }
    public void inputCWord(StringBuffer strbuf){
        if(strBuf.length()>0)
        strBuf.delete(0, strBuf.length()-1);
        strBuf.append(strbuf);
        l.addMessage("the Input Word Of Test"+strBuf);
       
    }
    //the mian body to deal the cWord
    protected synchronized void dealCWord(){
        while(true){
            char c=getNextWord();
            if(c=='?'){
                try{
                    this.wait(); 
                    l.addMessage("Now C Word Deal Waiting");
                }catch(Exception e){
                    e.printStackTrace();
                    l.addMessage("Now C Word Deal Wait Error");
                }    
            }
            if(c==' '){
              //  l.addMessage("deal the space sign"+c  );
                if(status==Begin){// if start
                    status=Begin;
                    continue;
                }
                if(status==End){//if end
                    status=End;
                    preId=0;
                    break;
                }
                if(status==Number){
                    dealNumber();
                    status=Begin;
                    continue;
                }
                if(status==UsrWord){
                    dealUsrWord();
                    status=Begin;
                    continue;
                }
                if(status==InrWord){
                    status=Begin;
                    dealInrWord();
                    continue;
                }
            }
            if(c=='#'){
              //  l.addMessage("deal the space sign"+c  );
                Row++;
                strDes.append('#');
                if(status==Begin){// if start
                    status=Begin;
                    continue;
                }
                if(status==End){//if end
                    status=End;
                    preId=0;
                    break;
                }
                if(status==Number){
                    dealNumber();
                    status=Begin;
                    continue;
                }
                if(status==UsrWord){
                    dealUsrWord();
                    status=Begin;
                    continue;
                }
                if(status==InrWord){
                    status=Begin;
                    dealInrWord();
                    continue;
                }
            }
            if(checkIfNum(c)){
                if(status==Begin){// if start
                    strCur.append(c);
                    status=Number;
                    continue;
                }
                if(status==End){//if end
                    status=error;
                    break;
                }
                if(status==Number){
                    strCur.append(c);
                    status=Number;
                    continue;
                }
                if(status==UsrWord){
                    strCur.append(c);
                    status=UsrWord;
                    continue;
                }
                if(status==InrWord){
                    dealInrWord();
                    strCur.append(c);
                    status=Number;
                    continue;
                }
            }
            if(checkIfChar(c)){
                if(status==Begin){// if start
                    status=UsrWord;
                    strCur.append(c);
                    continue;
                }
                if(status==End){//if end
                    status=error;
                    break;
                }
                if(status==Number){
                    status=error;
                    break;
                }
                if(status==UsrWord){
                    status=UsrWord;
                    strCur.append(c);
                    continue;
                }
                if(status==InrWord){
                    dealInrWord();
                    strCur.append(c);
                    status=UsrWord;
                    continue;
                }
            }
            if(checkIfCal(c)){
                if(status==Begin){// if start
                    status=InrWord;
                    strCur.append(c);
                    continue;
                }
                if(status==End){//if end
                    status=error;
                    break;
                }
                if(status==Number){
                    dealNumber();
                    strCur.append(c);
                    status=InrWord;
                    continue;
                }
                if(status==UsrWord){
                    dealUsrWord();
                    status=InrWord;
                    strCur.append(c);
                    continue;
                }
                if(status==InrWord){
                    status=Begin;
                    strCur.append(c);
                    dealInrWord();
                    continue;
                }
            }
            if(checkIfSplt(c)){
                if(status==Begin){// if start
                    status=Begin;
                    strCur.append(c);
                    dealSplit();
                    continue;
                }
                if(status==End){//if end
                    status=End;
                    strCur.append(c);
                    dealSplit();
                    preId=0;
                    break;
                }
                if(status==Number){
                    status=Begin;
                    dealNumber();
                    strCur.append(c);
                    dealSplit();
                    continue;
                }
                if(status==UsrWord){
                    status=Begin;
                    dealUsrWord();
                    strCur.append(c);
                    dealSplit();
                    continue;
                }
                if(status==InrWord){
                    status=error;
                    break;
                }
            }
          //  l.addMessage("a error word!+at Row"+Row);
          //  break;
        }
    }
    protected char getNextWord(){//ingore the differ of  the space and enter 
        // deal the space or enter sign as the one space
        if(strBuf==null){
            l.addMessage("no file of user input !");
            return '?';//when error return ? 
        }
        if(preId==strBuf.length()){
            l.addMessage("The error happened!,Please Check The Error "+preId);
            return '?';//when the space or enter to end the file of user design
        }
        if(preId==strBuf.length()-1){
            status=End;
        }
       // l.addMessage("The Previous Char is "+strBuf.charAt(preId));
        if(strBuf.charAt(preId)=='\n'){
            preId++;
            return '#';
        } 
        if(strBuf.charAt(preId)=='\t'){
            preId++;
            return ' ';
        }
        char c=strBuf.charAt(preId);
        preId++;
        return c;
    }
    protected Boolean checkIfNum(char c){
        char[] num=new char[]{'0','1','2','3','4','5','6','7','8','9'};
        Boolean flag=false;
        for(int i=0;i<num.length;i++){
            if(c==num[i]){
                flag=true;
                break;
            }
        }
        return flag;
    }
    protected Boolean checkIfChar(char c){
        char[] wrd=
                new char[]{'a','b','c','d','e','f','g','h',
    'i','g','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};
        Boolean flag=false;
        for(int i=0;i<wrd.length;i++){
            if(c==wrd[i]){
                flag=true;
                break;
            }
        }
        return flag;
    }
    protected Boolean checkIfCal(char c){
        char[] cal=new char[]{
          '+','-','*','/','>','<','=','!'  
        };
         Boolean flag=false;
        for(int i=0;i<cal.length;i++){
            if(c==cal[i]){
                flag=true;
                break;
            }
        }
        return flag;
    }
    protected Boolean checkIfSplt(char c){
        char[] splt=new char []{
            ',',';','\n','(',')','{','}'
        };
        Boolean flag=false;
        for(int i=0;i<splt.length;i++){
            if(c==splt[i]){
                flag=true;
                break;
            }
        }
        return flag;
    }
    protected void dealUsrWord(){
      //  l.addMessage("deal the UserWord "+strCur);
        String conStr[]=new String[]{
            "main","int","while","if","for","do","else"
        };
        Boolean flag=false;
      //  l.addMessage("Now Check If The Constraint! ");
        for(int i=0;i<conStr.length;i++){ 
            if(strCur.toString().equals(conStr[i])){//if the constraint
                flag=true;
          //      l.addMessage("get a constraint "+strCur);
                strDes.append(i);
                vCnst.addElement(conStr[i]);
                vcNum++;
                strCur.delete(0,strCur.length());
                break;
            }
        }
        if(!flag){// if user definition
            l.addMessage("get a usr definition "+strCur);
            vWord.addElement(strCur.toString());
            strDes.append(-1);//the user defination
            strCur.delete(0,strBuf.length());
            vwNum++;
        }
    }
    protected void dealNumber(){
      //  l.addMessage("deal the Number "+strCur);
        int iCur;
        strDes.append(-2);
        iCur=Integer.parseInt(strCur.toString());
      //  l.addMessage("get A number "+iCur);
        vNum.addElement(iCur);
        vnNum++;
        strCur.delete(0,strCur.length());
    }
    protected void dealInrWord(){
   //     l.addMessage("deal the InrWord "+strCur);
        String[] inr=new String[]{
         "++" ,"--" ,">=","<=","==","!="
        };
        if(strCur.length()==1){
            strDes.append(strCur);
     //       l.addMessage("get a one inr word "+strCur);
            strCur.delete(0,strCur.length());
            return;
        }
        else{
            for(int i=0;i<inr.length;i++){
                if(strCur.toString().equals(inr[i]))
                {
                    l.addMessage("get a two inr word "+strCur);
                    strDes.append(i-8);
                    strCur.delete(0,strCur.length());
                    return;
                }
            }
            strCur.delete(0,strCur.length());
            status=error;
        } 
    }
    protected void dealSplit(){
     //   l.addMessage("deal the split "+strCur);
     //   l.addMessage("Get The Split"+strCur);
        strDes.append(strCur);
        strCur.delete(0,strCur.length());
    }
    private void TestNumberTableAndUserTable(){
        l.addMessage("Test   The Tables");
        for(int i=0;i<vWord.size();i++){
            System.out.println(vWord.get(i).toString());
        }
        for(int i=0;i<vNum.size();i++){
            System.out.println(vNum.get(i));
        }
        for(int i=0;i<vCnst.size();i++){
            System.out.println(vCnst.get(i).toString());
        }
    }
}