Code Duplication    Length = 7-8 lines in 2 locations

htdocs/xoops_lib/modules/protector/library/HTMLPurifier/AttrDef/CSS/BackgroundPosition.php 2 locations

@@ 133-140 (lines=8) @@
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        $ret = array();
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        // first keyword
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        if ($keywords['h']) {
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            $ret[] = $keywords['h'];
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        } elseif ($keywords['ch']) {
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            $ret[] = $keywords['ch'];
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            $keywords['cv'] = false; // prevent re-use: center = center center
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        } elseif (count($measures)) {
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            $ret[] = array_shift($measures);
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        }
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        if ($keywords['v']) {
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            $ret[] = $keywords['v'];
@@ 142-148 (lines=7) @@
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            $ret[] = array_shift($measures);
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        }
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        if ($keywords['v']) {
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            $ret[] = $keywords['v'];
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        } elseif ($keywords['cv']) {
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            $ret[] = $keywords['cv'];
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        } elseif (count($measures)) {
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            $ret[] = array_shift($measures);
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        }
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        if (empty($ret)) {
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            return false;