Code Duplication    Length = 9-15 lines in 2 locations

lib/Caxy/HtmlDiff/Preprocessor.php 2 locations

@@ 19-33 (lines=15) @@
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        $pointerMax = min(strlen($old), strlen($new));
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        $pointerMid = $pointerMax;
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        $pointerStart = 0;
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        while ($pointerMin < $pointerMid) {
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            $cmp = substr_compare(
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                $old,
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                substr($new, $pointerStart, $pointerMid - $pointerStart),
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                $pointerStart,
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                $pointerMid - $pointerStart
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            );
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            if (0 === $cmp) {
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                $pointerMin = $pointerMid;
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                $pointerStart = $pointerMin;
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            } else {
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                $pointerMax = $pointerMid;
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            }
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            $pointerMid = floor(($pointerMax - $pointerMin) / 2 + $pointerMin);
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        }
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        return $pointerMid;
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    }
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@@ 51-59 (lines=9) @@
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        $pointerEnd = 0;
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        $oldLen = strlen($old);
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        $newLen = strlen($new);
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        while ($pointerMin < $pointerMid) {
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            if (substr($old, $oldLen - $pointerMid, $pointerMid - $pointerEnd) == substr($new, $newLen - $pointerMid, $pointerMid - $pointerEnd)) {
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                $pointerMin = $pointerMid;
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                $pointerEnd = $pointerMin;
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            } else {
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                $pointerMax = $pointerMid;
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            }
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            $pointerMid = floor(($pointerMax - $pointerMin) / 2 + $pointerMin);
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        }
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        return $pointerMid;
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    }
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}