]+?)>/', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
// Note: PHP ensures the array consists of alternating delimiters and literals
// and begins and ends with a literal (inserting $null as required).
$tag = false; // Odd/even counter. Tag or no tag.
$stack = array();
$output = '';
foreach ($split as $value)
{
// HTML tag
if ($tag) {
list($tagname) = explode(' ', strtolower($value), 2);
// Closing tag
if ($tagname[0] == '/') {
$tagname = substr($tagname, 1);
if (!in_array($tagname, $singleuse)) {
// See if we have other tags lingering first, and close them
while ((@$stack[0] != $tagname) && count($stack)) {
$output .= '';
}
// If the tag was not found, just leave it out;
if (count($stack)) {
$output .= '';
}
else {
$output = '<'. $tagname .'>'. $output .'';
}
}
}
// Opening tag
else {
// See if we have an identical tag already open and close it if desired.
if (count($stack) && ($stack[0] == $tagname) && in_array($stack[0], $nonesting)) {
$output .= '';
}
// Push non-single-use tags onto the stack
if (!in_array($tagname, $singleuse)) {
array_unshift($stack, $tagname);
}
// Add trailing slash to single-use tags as per X(HT)ML.
else {
//$value = rtrim($value, ' /') . ' /'; // not necessary
}
$output .= '<'. $value .'>';
}
}
else {
// Passthrough
$output .= $value;
}
$tag = !$tag;
}
// Close remaining tags
while (count($stack) > 0) {
$output .= '';
}
return $output;
}
Космос - Саган Карл :: Читать онлайн в BooksCafe.Net
