Code Duplication    Length = 6-8 lines in 2 locations

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

@@ 1321-1326 (lines=6) @@
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            $this->advance();
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            return $result;
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        } elseif (preg_match('/^' . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u", $this->currentToken)) {
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            // If it's an external reference (Sheet1!A1 or Sheet1:Sheet2!A1 or Sheet1!$A$1 or Sheet1:Sheet2!$A$1)
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            $result = $this->createTree($this->currentToken, '', '');
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            $this->advance();
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            return $result;
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        } elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u", $this->currentToken)) {
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            // If it's an external reference ('Sheet1'!A1 or 'Sheet1:Sheet2'!A1 or 'Sheet1'!$A$1 or 'Sheet1:Sheet2'!$A$1)
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            $result = $this->createTree($this->currentToken, '', '');
@@ 1341-1348 (lines=8) @@
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            $this->advance();
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            return $result;
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        } elseif (preg_match('/^' . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u", $this->currentToken)) {
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            // If it's an external range (Sheet1!A1:B2 or Sheet1:Sheet2!A1:B2 or Sheet1!$A$1:$B$2 or Sheet1:Sheet2!$A$1:$B$2)
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            // must be an error?
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            $result = $this->createTree($this->currentToken, '', '');
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            $this->advance();
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            return $result;
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        } elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u", $this->currentToken)) {
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            // If it's an external range ('Sheet1'!A1:B2 or 'Sheet1'!A1:B2 or 'Sheet1'!$A$1:$B$2 or 'Sheet1'!$A$1:$B$2)
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            // must be an error?
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            $result = $this->createTree($this->currentToken, '', '');