将静态Windows库转换为dll

我按照一个匿名人员的建议做了，我做了一个自动转换器（有人建议将_ddlspec（export）放在声明之前并使用此标头编译dll会起作用-嗯，那没有-
也许我做错了-我很普通旧Java程序员;））：

它基本上解析头文件并变成：

  SADENTRY SadLoadedMidFiles( HMEM, USHORT usMaxMidFiles, VOID * );

至：

 __declspec(dllexport) SADENTRY DLL_WRAPPER_SadLoadedMidFiles(HMEM param0,  USHORT usMaxMidFiles, VOID* param2){      return SadLoadedMidFiles(param0, usMaxMidFiles, param2);  }

这是代码（很可能是它的Regexp滥用，但是可以工作），gui部分取决于MigLayout：

    package cx.ath.jbzdak.diesIrae.util.wrappergen;    import net.miginfocom.swing.MigLayout;    import javax.swing.*;    import static java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment;    import java.awt.*;    import java.awt.event.ActionEvent;    import java.awt.event.ActionListener;    import java.io.*;    import java.nio.charset.Charset;    import java.util.ArrayList;    import java.util.Collections;    import java.util.List;    import java.util.regex.Matcher;    import java.util.regex.Pattern;        public class WrapperGenerator {        public static final Charset charset = Charset.forName("UTF-8");        WrapperGen generator = new WrapperGen();        // GUI CODE:        File origHeader, targetHeader, targetCpp;        JTextField newHeaderFileName;        Jframe wrapperGeneratorframe;        { wrapperGeneratorframe = new Jframe(); wrapperGeneratorframe.setTitle("Zamknij mnie!"); //Wrapper generator wrapperGeneratorframe.setLayout( new MigLayout("wrap 2, fillx", "[fill,min!]")); wrapperGeneratorframe.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); ActionListener buttonListener = new ActionListener() {     JFileChooser fileChooser = new JFileChooser();     {         fileChooser.setFileFilter(new javax.swing.filechooser.FileFilter() {  @Override  public boolean accept(File f) {      return f.isDirectory() || f.getName().matches(".*\.h(?:pp)?");  }  @Override  public String getDescription() {      return "Header files";  }         });         fileChooser.setCurrentDirectory(new File("C:\documents and Settings\jb\My documents\Visual Studio 2008\Projects\dll\dll"));     }     public void actionPerformed(ActionEvent e) {         if(JFileChooser.APPROVE_OPTION == fileChooser.showOpenDialog(wrapperGeneratorframe)){  origHeader = fileChooser.getSelectedFile();         }     } }; wrapperGeneratorframe.add(new JLabel("Original header file")); JButton jButton = new JButton("Select header file"); jButton.addActionListener(buttonListener); wrapperGeneratorframe.add(jButton); wrapperGeneratorframe.add(new JLabel("Result files prefix")); newHeaderFileName = new JTextField("dll_wrapper"); wrapperGeneratorframe.add(newHeaderFileName); ActionListener doListener = new ActionListener() {     public void actionPerformed(ActionEvent e) {         targetHeader = new File(origHeader.getParentFile(), newHeaderFileName.getText() + ".h");         targetCpp = new File(origHeader.getParentFile(), newHeaderFileName.getText() + ".cpp");         try {  targetHeader.createNewFile();  targetCpp.createNewFile();  generator.reader = new InputStreamReader(new FileInputStream(origHeader),charset);  generator.cppWriter = new OutputStreamWriter(new FileOutputStream(targetCpp), charset);  generator.heaerWriter = new OutputStreamWriter(new FileOutputStream(targetHeader), charset);  generator.parseReader();         } catch (IOException e1) {  e1.printStackTrace();  JOptionPane.showMessageDialog(wrapperGeneratorframe, "ERROR:" + e1.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);  return;         }     } }; JButton go = new JButton("go"); go.addActionListener(doListener); wrapperGeneratorframe.add(go, "skip 1");        }        public static void main(String []args){SwingUtilities.invokeLater(new Runnable() {    public void run() {        WrapperGenerator wgen = new WrapperGenerator();        Jframe f = wgen.wrapperGeneratorframe;        wgen.wrapperGeneratorframe.pack();        Point p = getLocalGraphicsEnvironment().getCenterPoint();        wgen.wrapperGeneratorframe.setLocation(p.x-f.getWidth()/2, p.y-f.getHeight()/2);        wgen.wrapperGeneratorframe.setVisible(true);    }});        }    }        class WrapperGen{                private static final Pattern METHOD_PATTERN =//1          //2   //params     Pattern.compile("([^#;{}]*\s+\w[\w0-9_]+)\(([^\)]*)\);", Pattern.MULTILINE);        //1 - specifiers - including stuff like __dllspec(export)...        //2 - function name        //3 param list                private static final String RESULT_PREFIX = "DLL_WRAPPER_";                private static final String RESULT_SPECIFIER =  "__declspec(dllexport) ";        Reader reader;        Writer heaerWriter;        Writer cppWriter;        public void parseReader() throws IOException { StringWriter writer = new StringWriter(); int read; while((read = reader.read())!=-1){     writer.write(read); } reader.close(); heaerWriter.append("#pragma oncennn"); heaerWriter.append("#include "stdafx.h"nnn"); //Standard Visual C++ import file. cppWriter.append("#include "stdafx.h"nnn"); Matcher m = METHOD_PATTERN.matcher(writer.getBuffer()); while(m.find()){     System.out.println(m.group());     handleMatch(m); } cppWriter.close(); heaerWriter.close();        }        public void handleMatch(Matcher m) throws IOException { Method meth = new Method(m); outputHeader(meth); outputCPP(meth);        }        private void outputDeclaration(Method m, Writer writer) throws IOException { //writer.append(RESULT_SPECIFIER); writer.append(m.specifiers); writer.append(" "); writer.append(RESULT_PREFIX); writer.append(m.name); writer.append("("); for (int ii = 0; ii < m.params.size(); ii++) {     Parameter p =  m.params.get(ii);     writer.append(p.specifiers);     writer.append(" ");     writer.append(p.name);     if(ii!=m.params.size()-1){         writer.append(", ");     } } writer.append(")");        }        public void outputHeader(Method m) throws IOException { outputDeclaration(m, heaerWriter); heaerWriter.append(";nn");        }        public void outputCPP(Method m) throws IOException { cppWriter.append(RESULT_SPECIFIER); outputDeclaration(m, cppWriter); cppWriter.append("{nt"); if (!m.specifiers.contains("void") || m.specifiers.matches(".*void\s*\*.*")) {     cppWriter.append("return "); } cppWriter.append(m.name); cppWriter.append("("); for (int ii = 0; ii < m.params.size(); ii++) {     Parameter p =  m.params.get(ii);     cppWriter.append(p.name);     if(ii!=m.params.size()-1){         cppWriter.append(", ");     } } cppWriter.append(");n"); cppWriter.append("}nn");        }    }    class Method{        private static final Pattern NAME_REGEXP =    //1      //2     Pattern.compile("\s*(.*)\s+(\w[\w0-9]+)\s*", Pattern.MULTILINE);        //1 - all specifiers - including __declspec(dllexport) and such ;)        //2 - function name        public final List<Parameter> params;        public final String name;        public final String specifiers;        public Method(Matcher m) { params = Collections.unmodifiableList(Parameter.parseParamList(m.group(2))); Matcher nameMather = NAME_REGEXP.matcher(m.group(1)); System.out.println("ALL: " + m.group());  System.out.println("G1: " + m.group(1)); if(!nameMather.matches()){     throw new IllegalArgumentException("for string "  + m.group(1)); }    //        nameMather.find(); specifiers = nameMather.group(1); name = nameMather.group(2);        }    }    class Parameter{        static final Pattern PARAMETER_PATTERN =     //1//2     Pattern.compile("\s*(?:(.*)\s+)?([\w\*&]+[\w0-9]*[\*&]?)\s*");        //1 - Most probably parameter type and specifiers, but may also be empty - in which case name is empty, and specifiers are in 2        //2 - Most probably parameter type, sometimes prefixed with ** or &* ;), also        // 'char *' will be parsed as grup(1) == char, group(2) = *.                static final Pattern STAR_PATTERN =     Pattern.compile("\s*([\*&]?)+\s*");                static final Pattern NAME_PATTERN =     Pattern.compile("\s*([\*&]+)?(\w[\w0-9]*)\s*");        public final String name;        public final String specifiers;         public Parameter(String param, int idx) { System.out.println(param); Matcher m = PARAMETER_PATTERN.matcher(param); String name = null; String specifiers = null; if(!m.matches()){     throw new IllegalStateException(param); } name = m.group(2); specifiers = m.group(1); if(specifiers==null || specifiers.isEmpty()){ //Case that parameter has no name like 'int', or 'int**'     specifiers = name;     name = null; }else if(STAR_PATTERN.matcher(name).matches()){ //Case that parameter has no name like 'int *'     specifiers += name;     name = null; }else if(NAME_PATTERN.matcher(name).matches()){ //Checks if name contains part of type like '**ptrData', and extracts '**'     Matcher m2 = NAME_PATTERN.matcher(name);     m2.matches();     if(m2.group(1)!=null){         specifiers += m2.group(1);         name = m2.group(2);     } } if(name==null){     name = "param" + idx; } this.specifiers = specifiers; this.name = name;        }        public static List<Parameter> parseParamList(String paramList){ List<Parameter> result = new ArrayList<Parameter>(); String[] params = paramList.split(","); int idx = 0; for(String param : params){     Parameter p = new Parameter(param, idx++);     result.add(p); } if(result.size()==1){     Parameter p = result.get(0);     if(p.specifiers.matches("\s*void\s*")){         return Collections.emptyList();     } } return result;        }    }