When filter is enabled, all content disappears

I'm seeing a similar issue. Creating an input format with Soundcloud filter enabled causes a node using this input format to only display the title information, and the linked soundcloud file. Any text content is removed from the output.

I've had a quick look at the issue and it seems the filter only outputs replacement text for a soundcloud tag. If there is no match you get no output. I've hacked the "replace" sections from the inline module into the process routine and this appears to work under 6.17.

function soundcloud_filter_process($text, $format = -1) {
  if (preg_match_all('/\[soundcloud(\:(.+))?( .+)?\]/isU', $text, $matches)) {
    $output = '';
    $s = $r = array();
    
    foreach ($matches[0] as $c => $code) {
      $sc = array(
                'url' => $matches[2][$c],
                'width' => variable_get('soundcloud_filter_width_'.$format, 100),
                'height' => variable_get('soundcloud_filter_height_'.$format, 81),
                'showcomments' => variable_get('soundcloud_filter_showcomments_'.$format, 'false'),
                'autoplay' => variable_get('soundcloud_filter_autoplay_'.$format, 'false'),
                'color' => variable_get('soundcloud_filter_color_'.$format, '#000000'),
      );

      $encoded_url = urlencode($sc['url']);
      $parsed_url = parse_url($sc['url']);

      if ($matches[3][$c] && preg_match_all('/\s+([a-z]+)\=([^\s]+)/i', $matches[3][$c], $override_params)) {
        foreach ($override_params[0] as $p => $par) {
          $sc[$override_params[1][$p]] = $override_params[2][$p];
        }
      }

      $params = 'url='.$encoded_url.'&show_comments='.$sc['showcomments'].'&auto_play='.$sc['autoplay'].'&color='.str_replace('#', '', $sc['color']) ;
      $output = theme('soundcloud_filter_embed', $params, $sc['height'], $sc['width'], $parsed_url['host']);
    }
    $s[] = $matches[0][$c];
    $r[] = $output;
  }
  return str_replace($s, $r, $text);
}

The above fix works for me on 6.19. Thanks

Thanks for the report! The fix by PaulJacobson works fine.

Commited.