Refactor difflib to not use each()
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@ -283,14 +283,16 @@ class DiffEngine
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continue;
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$matches = $ymatches[$line];
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reset($matches);
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$pointer = 0;
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foreach ($matches as $y)
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$pointer++;
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if (empty($this->in_seq[$y])) {
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$k = $this->lcs_pos($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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foreach ($matches as $y) {
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foreach (array_slice($matches, $pointer) as $y) {
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if ($y > $this->seq[$k - 1]) {
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assert($y < $this->seq[$k]);
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// Optimization: this is a common case:
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