I love to make things automate. Recently I have created www.algorithmsdemos.com. For this website, I have to style the code in C, Java, JavaScript. After Styling 30 programs, I felt to make this automate. I am using http://markup.su/highlighter/  to convert programs into beautiful markup. I have clearly observed how this website working. It is using one service at URL markup.su/api/highlighter. By using this service I have created one eclipse plugin convert program into beautiful markup.


  1. Download above project and import to your workspace
  2. Run the project as eclipse plugin project. Now you can see new eclipse window with new workspace
  3. Create a sample dynamic web project and create a Java or HTML document. Write C or Java or JavaScript code in that document
  4. Open Project Explorer or Package Explorer and right click on that document and go to Sysntax Hilighter sub menu and then click on C or Java or JavaScript or HTML

If you want to create more options for this plugin, download this project and work on top of it. Here I will give some important code snippets to make a plugin like this.

Identify File From Package Explorer or Project Explorer

This code is to know the selected file by user in Package Explorer or Project Explorer.
IWorkbench workbench = PlatformUI.getWorkbench();
ISelectionService  is = workbench.getActiveWorkbenchWindow().getSelectionService();
IStructuredSelection structured = (IStructuredSelection) is
IFile file = null;
if (structured == null)
    structured = (IStructuredSelection) is
    file = (IFile) structured.getFirstElement();
IPath path = file.getLocation();
// Do something with path.

Sending Post Request to Markup Service

public static String hilight(String code, String lang) throws IOException {
     String url = "http://markup.su/api/highlighter";
     String USER_AGENT = "Mozilla/5.0";
     URL obj = new URL(url);
     HttpURLConnection con = (HttpURLConnection) obj.openConnection();

     //add reuqest header
     con.setRequestProperty("User-Agent", USER_AGENT);
     con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");

     //add parameters
     StringBuilder sb = new StringBuilder();
     sb.append(URLEncoder.encode("source", "UTF-8")).append('=').append(URLEncoder.encode(code, "UTF-8"));
     sb.append("&"+URLEncoder.encode("language", "UTF-8")).append('=').append(URLEncoder.encode(lang, "UTF-8"));
     sb.append("&"+URLEncoder.encode("theme", "UTF-8")).append('=').append(URLEncoder.encode("Dawn", "UTF-8"));
     String urlParameters = sb.toString();

     // Send post request
     DataOutputStream wr = new DataOutputStream(con.getOutputStream());

     int responseCode = con.getResponseCode();
     System.out.println("\nSending 'POST' request to URL : " + url);
     System.out.println("Post parameters : " + urlParameters);
     System.out.println("Response Code : " + responseCode);

     BufferedReader in = new BufferedReader(
             new InputStreamReader(con.getInputStream()));
     String inputLine;

     StringBuilder resp = new StringBuilder();
     while ((inputLine = in.readLine()) != null) {
     //return syntax hilighted response
     return resp.toString();
I am looking forward to develop this plugin with more features. I will also post them soon.



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