/src/main/java/org/vietspider/js/JsUtils.java

/***************************************************************************

 * Copyright 2001-2008 The VietSpider         All rights reserved.  		 *

 **************************************************************************/

package org.vietspider.js;



import java.util.ArrayList;

import java.util.List;



/** 

 * Author : Nhu Dinh Thuan

 *          nhudinhthuan@yahoo.com

 * Jul 7, 2008  

 */

public class JsUtils {



  public static String [] getParams(String jsFunction) {

    List<String> list = new ArrayList<String>();

    int i = 0;



    while(i < jsFunction.length()) {

      char c = jsFunction.charAt(i);

      i++;

      if(c == '(' || c == '=') break;

    }



    while(i < jsFunction.length()) {

      char c = jsFunction.charAt(i);



      while(Character.isWhitespace(c) || Character.isSpaceChar(c)) {

        i++;

        if(i >= jsFunction.length()) break;

        c = jsFunction.charAt(i);

      }



      if(c == ',') {

        i++;

        continue;

      } else if (c  == ')' && jsFunction.charAt(i-1) != '\\' ) {

        break;

      }



      while(Character.isWhitespace(c) || Character.isSpaceChar(c)) {

        i++;

        if(i >= jsFunction.length()) break;

        c = jsFunction.charAt(i);

      }



      if(c == '\'') {

        i++;

        int start = i;

        while(i < jsFunction.length()) {

          c = jsFunction.charAt(i);

          if( (c == '\'' && jsFunction.charAt(i-1) != '\\')

              || (c  == ')' && jsFunction.charAt(i-1) != '\\')) break;

          i++;

        }

        if(i <= start) {

          list.add("");

        } else {

          list.add(jsFunction.substring(start, i).trim());

        }

        i++;

        continue;

      } 



      if(c == '"') {

        i++;

        int start = i;

        while(i < jsFunction.length()) {

          c = jsFunction.charAt(i);

          if( (c == '"' && jsFunction.charAt(i-1) != '\\')

              || (c  == ')' && jsFunction.charAt(i-1) != '\\')) break;

          i++;

        }

        if(i <= start) {

          list.add("");

        } else {

          list.add(jsFunction.substring(start, i).trim());

        }

        i++;

        continue;

      } 



      int start = i;

      i++;

      while(i < jsFunction.length()) {

        c = jsFunction.charAt(i);

        if((c == ',' && jsFunction.charAt(i-1) != '\\')

            || (c  == ')' && jsFunction.charAt(i-1) != '\\') ) break;

        i++;

      }



      if(i <= start) {

        list.add("");

      } else if( start < Math.min(i, jsFunction.length())){

        list.add(jsFunction.substring(start, Math.min(i, jsFunction.length())).trim());

      }



    }



    return list.toArray(new String[list.size()]);

  }



//  public static void main(String[] args) throws Exception {

//    String aaa = "200905181719249.1.108896_14113.rar";

//    String value = "javascript:popupPageMail('/gdtLive/Khoi-chuc-nang/Mail-popup?contentId=115584&amp;location=tct&amp;sendSiteNodeId=100074')";

//    String [] params = JsUtils.getParams(value);

//    for(String param : params ){

//      System.out.println(param);

//    }

//  }

//StringBuilder builder = new StringBuilder("  <div class=\"bText\">");

//builder.append("\n\t\t<script language=\"javascript\"> show_postcontent('a aaaa bbdd\n");

//builder.append("<font face=\"Ariral\"> sdfdshfjdsfds </font> xcvxcvcxdf 333223 ');</script>\n\t");

//builder.append("<a id=\"feedbacks\"></a><a id=\"comments\"></a><a id=\"trackbacks\">");

//builder.append("</a><a id=\"pingbacks\"></a> \n\t");





//List<String> jsScripts = new ArrayList<String>();

//jsScripts.add("show_postcontent");



//HTMLDocument document = HTMLParser.createDocument(builder.toString());

//JsScriptHandler.updateDocument(document, jsScripts);

//System.out.println(document.getTextValue());

//}

}