Ensure that wp_specialchars captures all pre-encoded entities correctly when preventing double encoding. Fixes #9821.
git-svn-id: https://develop.svn.wordpress.org/trunk@11338 602fd350-edb4-49c9-b593-d223f7449a82
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@ -244,7 +244,7 @@ function wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false
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// Handle double encoding ourselves
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if ( !$double_encode ) {
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$string = wp_specialchars_decode( $string, $_quote_style );
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$string = preg_replace( '/&(#?x?[0-9]+|[a-z]+);/i', '|wp_entity|$1|/wp_entity|', $string );
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$string = preg_replace( '/&(#?x?[0-9a-z]+);/i', '|wp_entity|$1|/wp_entity|', $string );
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}
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$string = @htmlspecialchars( $string, $quote_style, $charset );
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