February 12, 2011 
Definition:
function wp_kses_normalize_entities($string) {}
Converts and fixes HTML entities.
This function normalizes HTML entities. It will convert "AT&T" to the correct "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on.
Parameters
- string $string: Content to normalize entities
Return values
returns:Content with normalized entities
Source code
function wp_kses_normalize_entities($string) {
# Disarm all entities by converting & to &
$string = str_replace('&', '&', $string);
# Change back the allowed entities in our entity whitelist
$string = preg_replace_callback('/&([A-Za-z]{2,8});/', 'wp_kses_named_entities', $string);
$string = preg_replace_callback('/&#(0*[0-9]{1,7});/', 'wp_kses_normalize_entities2', $string);
$string = preg_replace_callback('/&#[Xx](0*[0-9A-Fa-f]{1,6});/', 'wp_kses_normalize_entities3', $string);
return $string;
}
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