changed top formatting again

ipodder.opml.class.php

<?php

/*******************************************************************************************
 * ipodder.opml.class.php
 * ---------
 * Author: Rasheq Rahman (rasheq.rahman@gmail.com)
 * Copyright: (c) 2005 Rasheq Rahman
 * Release Version: 1.0.0
 * Date Started: 2005/05/20
 

 * ipodder.opml.class.php is a PHP class to convert an Ipodder 
 * (http://www.ipodder.org) OPML file into a simple HTML table
 * that can be inserted into a web page. More complete documentation 
 * can be found at http://www.rasheqrahman.com/.
 *
 * The orginial code for this class was written by Joe Grossberg. 
 * See http://www.joegrossberg.com/archives/001966.html for details.
 *
 **************************************************************************************
 *
 *
 *   ipodder.opml.class.php is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This class is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with ipodder.opml.class.php; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 ************************************************************************************/

class OPMLtoHTML
{
  var $index; 
  var $vals; 
  var $html = '';
  
  /* Set the color scheme for alternating podcasts and alternating categories
  In the ipodder hierarchy, podcasts are organized into categories. A category might have one,
  two, etc. podcasts. To make the tables easier to read, I have implemented logic that sets different
  color schemes for alternating categories and alternating podcasts. You can use Hexadecimal colors
  or CSS color names. A good list is provided by the W3 Consortium at 
  http://www.w3schools.com/css/css_colornames.asp  
  */
  
  var $oddcategory_oddpodcast_color = "#D1CEF2"; // ex: category #1, podcast #1 
  var $oddcategory_evenpodcast_color = "#E3E1F7"; // ex: category #1, podcast #2
  var $evencategory_oddpodcast_color = "#D8EDAF"; //ex: category #2, podcast #1 
  var $evencategory_evenpodcast_color = "#EEF7DD"; //ex: category #2, podcast #2 
  


  function OPMLtoHTML ($file)
  {
    $this->parse_opml($file);
    $this->generate_table();
  }

  function parse_opml ($file)
  {
    $fp = fopen($file, 'r');
    if (!$fp) return;
    $xml = fread($fp, filesize($file));
    fclose($fp);

    $parser = xml_parser_create('');
    $status = xml_parse_into_struct($parser, $xml, $this->vals, $this->index); 
    xml_parser_free($parser);
    if (!$status) return;

    return true;
  }

  function generate_table () // creates table from parsed OPML file
  {
    $expand = $this->vals[$this->index['EXPANSIONSTATE'][0]]['value'];
    $expand = array_flip(preg_split('/,\s*/', $expand));
    
    $category_count = 1; // counter to track category # for color formatting
    
    $count = 0; // Not sure what this is used for but it was in joe's original script

    foreach ($this->index['OUTLINE'] as $i)
    {
      $type = $this->vals[$i]['type'];
      if ($type == 'cdata' or $i < $this->index['BODY'][0])
        continue; //skips over header informaition in OMPL file
        
       // code below is optional. You can use it create "indents" in the final HTML output 
       so that code is nicely formatted //
       
      if (empty($first_depth))
        $first_depth = $this->vals[$i]['level'] - 1;

      $depth  = $this->vals[$i]['level'] - $first_depth;
      $indent = str_repeat('  ', $depth);

      /* when the last podcast is reached in each category, an extra row
      is added to provide a buffer for the next category. */

      if ($type == 'close')
      {
       	$category_count++;
     
        $this->html .= "<tr>\n<td height=".'"20px"'."></td>\n<td></td></tr>\n";
        continue;
      }
      
      $count++;

/* 
the text (podcast name or category name) and 
$feed (rss/xml feed for podcast as parsed from the OPML file
*/

      $text = htmlentities($this->vals[$i]['attributes']['TEXT']);
      $feed  = htmlentities($this->vals[$i]['attributes']['URL']);

      
            
      if ($type == 'complete')     
     
      {
/*
skip over the first entry which is just a link to add a new podcast to the category. 
This is hardcoded in HTML already.
  */      
        if ( preg_match("/\bClick to add your show to this listing\b/i", $text, $match))
        {
        continue;
        }
        
/*
identifies whether a category # is even/odd and the podcast # is even/odd. 
Apply appropriate formatting based on class variables defined above.
*/

        if ($category_count % 2)
        	($podcast_count % 2) ? $bgcolor = $this->oddcategory_oddpodcast_color  : $bgcolor = $this->oddcategory_evenpodcast_color;
        else
        	($podcast_count % 2) ? $bgcolor = $this->evencategory_oddpodcast_color : $bgcolor = $this->evencategory_evenpodcast_color; 

//formatting for podcast feed

        if ($feed)
        {
        	$this->html .= "<tr> \n";
        	$this->html .= $indent . $indent . '<td width="50px" align="center" bgcolor ="'. $bgcolor. '"><a href="' . $feed . '"><img alt="Click to select feed" src="http://www.scripting.com/images/xmlIcon2.gif" border="0" height="14" width="36"></a></td>'."\n";
        
//formatting for podcast name/description

        if ($text)
          $this->html .= $indent . $indent . '<td width="650px" align="left" bgcolor="' . $bgcolor. '" cellpadding="3"><B>'. $text . '</B>';          
          $podcast_count++;
          
        }
        $this->html .= "</td>\n</tr>\n";
      }
      
//formatting for category name

      if ($type == 'open') // This for the section headers
      	{
        $this->html .= '<tr><td colspan="2"><h3 align="left"><b>'. $text . "</b></h3></td></tr>\n";
        $podcast_count = 1; // counter to track podcast # for color formatting
      	}
    }
  }
} 

?>