newjframe.java

基于c0文法写的生成p-code的编译器

import java.io.File;

/*
 * NewJFrame.java
 *
 * Created on 2009年3月6日, 下午8:21
 */
import javax.swing.JFileChooser;



/**
 *
 * @author  lilac
 */
public class NewJFrame extends javax.swing.JFrame {
    private String sourcefilepath;
    private String outputfilepath;
    /** Creates new form NewJFrame */
    public NewJFrame() {
        initComponents();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        textField1 = new java.awt.TextField();
        button1 = new java.awt.Button();
        button3 = new java.awt.Button();
        textArea1 = new java.awt.TextArea();
        textArea2 = new java.awt.TextArea();
        textArea3 = new java.awt.TextArea();
        label1 = new java.awt.Label();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        textField1.setText("textField1");

        button1.setLabel("open");
        button1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                button1MouseClicked(evt);
            }
        });

        button3.setLabel("compile");
        button3.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                button3MouseClicked(evt);
            }
        });

        textArea1.setName("fouroutput"); // NOI18N

        textArea2.setName("assembleroutput"); // NOI18N

        label1.setText("C-Compiler");

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .addContainerGap()
                        .add(textArea1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 356, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(10, 10, 10)
                        .add(textArea2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 271, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                    .add(layout.createSequentialGroup()
                        .addContainerGap()
                        .add(textArea3, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 637, Short.MAX_VALUE)))
                .addContainerGap())
            .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .add(label1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 208, Short.MAX_VALUE)
                .add(textField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 220, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(button1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(button3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(27, 27, 27))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(label1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED))
                    .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                        .add(layout.createSequentialGroup()
                            .add(textField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED))
                        .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                            .add(layout.createSequentialGroup()
                                .add(button1, 0, 0, Short.MAX_VALUE)
                                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED))
                            .add(layout.createSequentialGroup()
                                .add(button3, 0, 0, Short.MAX_VALUE)
                                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)))))
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, textArea2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 438, Short.MAX_VALUE)
                    .add(org.jdesktop.layout.GroupLayout.LEADING, textArea1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 438, Short.MAX_VALUE))
                .add(9, 9, 9)
                .add(textArea3, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void button1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_button1MouseClicked
        // TODO add your handling code here:
        
        JFileChooser chooser = new JFileChooser();
        chooser.setMultiSelectionEnabled(false);
        if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION) {
            sourcefilepath = chooser.getSelectedFile().getAbsolutePath();
            outputfilepath = sourcefilepath + ".asm";
            textField1.setText(sourcefilepath);
        }
    }//GEN-LAST:event_button1MouseClicked

    private void button3MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_button3MouseClicked
        // TODO add your handling code here:
        
        File file = new File(sourcefilepath);
        Lex lx = new Lex(file);
        lx.lex_analy();
        if(lx.erroroutput!=null){
            textArea3.append("词法分析错误：");
            textArea3.append(lx.erroroutput);
            return;
        }
        Compile cc = new Compile(lx.list);
        cc.Prog();
        //打印
        if (cc.error == 0) {
            //四元式输出
            textArea1.append("topconst:\n");
            for (Constpair pair : cc.topconst) {
                textArea1.append("const " + pair.toString() + "\n");
            }
            textArea1.append("topvar:\n");
            for (String ss : cc.topvar) {
                textArea1.append("int " + ss + "\n");
            }
            textArea1.append("===============================================\n");
            for (Function func : cc.funclist) {
                textArea1.append("FUNCTION:\n");
                textArea1.append("===============================================\n");
                textArea1.append(func.retype + " " + func.name + "\n");
                textArea1.append("PARA:\n");
                for (String para : func.para) {
                    textArea1.append("int " + para + "\t" + func.pmap.get(para) + "\n");
                }
                textArea1.append("CONST:\n");
                for (Constpair pair : func.con) {
                    textArea1.append("const " + pair.toString() + "\n");
                }
                textArea1.append("VAR:\n");
                for (String var : func.var) {
                    textArea1.append("int " + var + "\t" + func.vmap.get(var) + "\n");
                }
                for (Four f : func.fourlist) {
                    if (f.result != null && f.result.startsWith("@")) {
                        textArea1.append("int " + f.result + "\t" + func.vmap.get(f.result) + "\n");
                    }
                }
                textArea1.append("FOUR:\n");
                textArea1.append("===============================================\n");
                for (Four four : func.fourlist) {
                    textArea1.append(four.toString() + "\n");
                }
            }
            //汇编输出
            Generate gen = new Generate(cc.topconst, cc.topvar, cc.funclist, outputfilepath);
            gen.Generate();
            textArea2.append(".386\n");
            textArea2.append(".MODEL FLAT\n");
            textArea2.append("includelib msvcrt.lib\n");
            textArea2.append("puts proto C\n");
            textArea2.append("printf proto C\n");
            textArea2.append("scanf proto C\n");
            textArea2.append(".STACK 4096\n");
            textArea2.append(".DATA\n");
            for(String s : gen.topvar){
                textArea2.append("$"+s + " DWORD 0\n");
            }
            for (String s : gen.st) {
                textArea2.append(s + '\n');
            }
            textArea2.append(".CODE\n");
            for (String s : gen.assembler) {
                textArea2.append(s + '\n');
            }
            textArea2.append("_main:\n");
            textArea2.append("jmp near ptr @fmain\n");
            textArea2.append("end _main\n");
            //结果输出
            if(gen.warn!=null){
                textArea3.append(gen.warn);
            }
            textArea3.append("成功生成汇编!");
        } else {
            textArea3.append("ERROR " + new Integer(cc.error).toString() + "\n");
            textArea3.append(cc.err_report(cc.error));
        }
    }//GEN-LAST:event_button3MouseClicked
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new NewJFrame().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private java.awt.Button button1;
    private java.awt.Button button3;
    private java.awt.Label label1;
    private java.awt.TextArea textArea1;
    private java.awt.TextArea textArea2;
    private java.awt.TextArea textArea3;
    private java.awt.TextField textField1;
    // End of variables declaration//GEN-END:variables
    
}