HTML breaks due to regex for "complex" HTML based content

If you use FCKeditor (I've not tested with TinyMCE) and Pagination, you can obtain pages which will not be considered valid by validator.w3.org.

The reason is that FCKeditor embeds the pagination tag into a paragraph, i.e.

[ header = next page ]

So, in the first page there will be a

without the end tag, and in the next page, there will be a

without the start tag.

I have fixed this issue adding a function and changing this section of the function _get_pages() in pagination.module.

$textsize = strlen($text);
$previous_start_tags = '';

do {
$section = _get_section_break($text, $cutoff);
$match = (is_array($section) and isset($section['break']) ) ? $section['break'] : 0;
$header = (is_array($section) and isset($section['header']) ) ? $section['header'] : null;
$section = is_array($section) ? $section['text'] : $section;
//$pages[] = $section;
$start_tags = '';
$end_tags = '';
_pagination_xhtml_unterminated_elements($section, $start_tags, $end_tags);
$pages[] = $previous_start_tags . $section . $end_tags;
$previous_start_tags = $start_tags;
$text = substr($text, strlen($section) + $match);

/**
* Get the unterminated elements in the xhtml code.
* Useful when splitting xhtml code
*
* @param string $xhtml
* the code to be parsed
* @param string $star_tags
* used to return the unterminated elements
* @param string $end_tags
* used to return the missing end tags
*/
function _pagination_xhtml_unterminated_elements($xhtml, &$start_tags, &$end_tags)
{
$unclosed_tags = array();
$end_tags = array();
$regexp = '/<[^\!]{1}[^\/]*?>/';
preg_match_all($regexp, $xhtml, $matches);
$tags = $matches[0];
foreach ($tags as $tag)
{
if (substr($tag, 0, 2) != ' {
// start tag
$unclosed_tags[] = $tag;
}
else
{
// end tag, delete the open tag
end($unclosed_tags);
unset( $unclosed_tags[key($unclosed_tags)] );
}
}
foreach($unclosed_tags as $tag)
{
if (strpos($tag, ' ')) $end_tags[] = '';
else $end_tags[] = '')-1) . '>';
}
$end_tags = array_reverse($end_tags);
$start_tags = implode($unclosed_tags);
$end_tags = implode($end_tags);
}