Code Duplication    Length = 5-5 lines in 2 locations

src/PhpSpreadsheet/Writer/Xls/Parser.php 2 locations

@@ 955-959 (lines=5) @@
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        while ($i < $formula_length) {
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            $token .= $this->formula[$i];
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            if ($i < ($formula_length - 1)) {
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                $this->lookAhead = $this->formula[$i + 1];
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            } else {
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                $this->lookAhead = '';
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            }
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            if ($this->match($token) != '') {
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                $this->currentCharacter = $i + 1;
@@ 968-972 (lines=5) @@
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                return 1;
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            }
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            if ($i < ($formula_length - 2)) {
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                $this->lookAhead = $this->formula[$i + 2];
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            } else { // if we run out of characters lookAhead becomes empty
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                $this->lookAhead = '';
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            }
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            ++$i;
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        }
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        //die("Lexical error ".$this->currentCharacter);