$ cat PList.java

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;

public class PList implements Serializable {
  private Map<String,String> dict;

  public PList() {
    dict = new HashMap<String,String>();
  }

  public void put(String key, String value) {
    dict.put(key, value);
  }

  public String get(String key) {
    return dict.get(key);
  }

  public Map<String,String> getDict() {
    return dict;
  }
}

$ cat PListReader.java

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.PrintWriter;

public class PListReader extends BufferedReader {
  public PListReader(Reader in) throws IOException {
    super(in);
  }

  public PListReader(InputStream is) throws IOException {
    this(new InputStreamReader(is, "UTF-8"));
  }

  public PListReader(String filename) throws IOException {
    this(new FileInputStream(filename));
  }

  public String readKey() throws IOException {
    while (true) {
      String line = readLine();
      if (line == null) {
        return null;
      }
      int n = line.indexOf("<key>");
      if (n < 0) {
        continue;
      }
      int m = line.indexOf("</key>", n+5);
      if (m < 0) {
        continue;
      }
      return line.substring(n+5, m);
    }
  }

  public String readStringValue() throws IOException {
    String line = readLine();
    if (line == null) {
      return null;
    }
    int n = line.indexOf("<string>");
    if (n < 0) {
      return null;
    }
    int m = line.indexOf("</string>", n+8);
    if (m < 0) {
      return null;
    }
    return line.substring(n+8, m);
  }

  public String[] readKeyAndStringValue() throws IOException {
    while (true) {
      String key = readKey();
      if (key == null) {
        break;
      }
      String value = readStringValue();
      if (value == null) {
        continue;
      }
      return new String[] { key, value };
    }
    return null;
  }

  public PList readPList() throws IOException {
    PList plist = new PList();
    while (true) {
      String[] pair = readKeyAndStringValue();
      if (pair == null) {
        break;
      }
      String key = pair[0];
      String value = pair[1];
      plist.put(key, value);
    }
    return plist;
  }

  public void printPList(PrintWriter out, String separator) throws IOException {
    while (true) {
      String[] pair = readKeyAndStringValue();
      if (pair == null) {
        break;
      }
      String key = pair[0];
      String value = pair[1];
      out.printf("%s%s%s%n", key, separator, value);
    }
  }

  public static void main(String[] args) throws IOException {
    PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out, "UTF-8"));
    if (args.length > 0) {
      for (String filename : args) {
        plist(out, filename);
      }
    }
    else {
      BufferedReader in = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));
      while (true) {
        String filename = in.readLine();
        if (filename == null) {
          break;
        }
        plist(out, filename);
      }
    }
    out.flush();
    out.close();
  }

  public static void plist(PrintWriter out, String filename) throws IOException {
    out.printf("[ %s ]%n", filename);
    PListReader in = new PListReader(filename);
    in.printPList(out, " = ");
    in.close();
    out.println();
    // out.flush();
  }
}

$ cat DpmInfo.java

import java.io.File;
import java.io.IOException;

public class DpmInfo {
  private static final String pluginFolderName
    = "/Library/Application Support/Digidesign/Plug-ins";

  private String folderName;
  private String fileName;
  private PList plist;

  public DpmInfo(String dpmName) throws IOException {
    folderName = dpmName;
    if (! folderName.startsWith("/")) {
      folderName = pluginFolderName + "/" + folderName;
    }
    if (! folderName.endsWith(".dpm")) {
      folderName = folderName + ".dpm";
    }
    int n = folderName.lastIndexOf('/');
    fileName = folderName.substring(n+1);
    String plistFilename = folderName + "/Contents/Info.plist";
    PListReader in = new PListReader(plistFilename);
    plist = in.readPList();
    in.close();
  }

  public String getFolderName() {
    return folderName;
  }

  public String getFileName() {
    return fileName;
  }

  public String getBundleName() {
    return plist.get("CFBundleName");
  }

  public String getBundleVersion() {
    return plist.get("CFBundleVersion");
  }

  public String getBundleInfo() {
    String bundleInfo = plist.get("CFBundleGetInfoString");
    if (bundleInfo == null) {
      bundleInfo = "";
    }
    return bundleInfo;
  }
}

$ cat DpmLister.java

import java.io.File;
import java.io.IOException;

public class DpmLister {
  private static final int fontSize = 1;

  private static final String pluginFolderName
    = "/Library/Application Support/Digidesign/Plug-ins";

  public static void main(String[] args) throws IOException {
    File folder = new File(pluginFolderName);
    System.out.println("<table border=1>");
    System.out.print("<tr>");
    System.out.print("<td align=center><i>File</i></td>");
    System.out.print("<td align=center><i>Name</i></td>");
    System.out.print("<td align=center><i>Version</i></td>");
    System.out.print("<td align=center><i>Bundle Info</i></td>");
    System.out.println("</tr>");
    for (String dpmName : folder.list()) {
      if (! dpmName.endsWith(".dpm")) {
        continue;
      }
      DpmInfo dpmInfo = new DpmInfo(dpmName);
      printDpmInfo(dpmInfo);
    }
    System.out.println("</table>");
    System.out.flush();
  }

  public static void printDpmInfo(DpmInfo dpmInfo) throws IOException {
    String fileName = dpmInfo.getFileName();
    String bundleName = dpmInfo.getBundleName();
    String bundleVersion = dpmInfo.getBundleVersion();
    String bundleInfo = dpmInfo.getBundleInfo();
    if (bundleInfo == null) {
      bundleInfo = "";
    }
    print(new String[] { fileName, bundleName, bundleVersion, bundleInfo });
  }

  private static void print(String[] ss) {
    System.out.print("<tr>");
    for (String s : ss) {
      if (s == null || s.length() == 0) {
        s = "&mp;nbsp;";
      }
      System.out.printf("<td align=left valign=top><font size=%d>%s</font></td>", fontSize, s);
    }
    System.out.println("</tr>");
  }
}

$ javac *.java
$ java DpmLister > dpmlist.html
$