Code Duplication    Length = 5-6 lines in 2 locations

src/wp-includes/Text/Diff/Engine/native.php 2 locations

@@ 194-199 (lines=6) @@
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                $matches = $ymatches[$line];
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                reset($matches);
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                while (list(, $y) = each($matches)) {
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                    if (empty($this->in_seq[$y])) {
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                        $k = $this->_lcsPos($y);
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                        assert($k > 0);
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                        $ymids[$k] = $ymids[$k - 1];
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                        break;
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                    }
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                }
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                while (list(, $y) = each($matches)) {
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                    if ($y > $this->seq[$k - 1]) {
@@ 209-213 (lines=5) @@
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                        $this->in_seq[$this->seq[$k]] = false;
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                        $this->seq[$k] = $y;
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                        $this->in_seq[$y] = 1;
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                    } elseif (empty($this->in_seq[$y])) {
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                        $k = $this->_lcsPos($y);
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                        assert($k > 0);
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                        $ymids[$k] = $ymids[$k - 1];
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                    }
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                }
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            }
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        }