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<?php |
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namespace Egulias\EmailValidator\Parser; |
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use Egulias\EmailValidator\EmailLexer; |
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use Egulias\EmailValidator\Result\Result; |
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use Egulias\EmailValidator\Result\ValidEmail; |
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use Egulias\EmailValidator\Result\InvalidEmail; |
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use Egulias\EmailValidator\Warning\LocalTooLong; |
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use Egulias\EmailValidator\Result\Reason\ConsecutiveDot; |
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use Egulias\EmailValidator\Result\Reason\DotAtEnd; |
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use Egulias\EmailValidator\Result\Reason\DotAtStart; |
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use Egulias\EmailValidator\Result\Reason\ExpectingATEXT; |
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class LocalPart extends Parser |
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{ |
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private $invalidTokens = array( |
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EmailLexer::S_COMMA => EmailLexer::S_COMMA, |
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EmailLexer::S_CLOSEBRACKET => EmailLexer::S_CLOSEBRACKET, |
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EmailLexer::S_OPENBRACKET => EmailLexer::S_OPENBRACKET, |
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EmailLexer::S_GREATERTHAN => EmailLexer::S_GREATERTHAN, |
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EmailLexer::S_LOWERTHAN => EmailLexer::S_LOWERTHAN, |
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EmailLexer::S_COLON => EmailLexer::S_COLON, |
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EmailLexer::S_SEMICOLON => EmailLexer::S_SEMICOLON, |
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EmailLexer::INVALID => EmailLexer::INVALID |
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); |
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public function parse() : Result |
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{ |
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$totalLength = 0; |
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while ($this->lexer->token['type'] !== EmailLexer::S_AT && null !== $this->lexer->token['type']) { |
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if ($this->hasDotAtStart()) { |
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return new InvalidEmail(new DotAtStart(), $this->lexer->token['value']); |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DQUOTE) { |
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$dquoteParsingResult = $this->parseDoubleQuote(); |
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//Invalid double quote parsing |
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if($dquoteParsingResult->isInvalid()) { |
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return $dquoteParsingResult; |
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} |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS || |
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$this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS ) { |
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$commentsResult = $this->parseComments(); |
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//Invalid comment parsing |
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if($commentsResult->isInvalid()) { |
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return $commentsResult; |
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} |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) { |
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return new InvalidEmail(new ConsecutiveDot(), $this->lexer->token['value']); |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DOT && |
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$this->lexer->isNextToken(EmailLexer::S_AT) |
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) { |
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return new InvalidEmail(new DotAtEnd(), $this->lexer->token['value']); |
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} |
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$resultEscaping = $this->validateEscaping(); |
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if ($resultEscaping->isInvalid()) { |
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return $resultEscaping; |
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} |
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View Code Duplication |
if (isset($this->invalidTokens[$this->lexer->token['type']])) { |
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return new InvalidEmail(new ExpectingATEXT('Invalid token found'), $this->lexer->token['value']); |
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} |
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$resultFWS = $this->parseLocalFWS(); |
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if($resultFWS->isInvalid()) { |
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return $resultFWS; |
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} |
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$totalLength += strlen($this->lexer->token['value']); |
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$this->lexer->moveNext(); |
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} |
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if ($totalLength > LocalTooLong::LOCAL_PART_LENGTH) { |
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$this->warnings[LocalTooLong::CODE] = new LocalTooLong(); |
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} |
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return new ValidEmail(); |
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} |
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View Code Duplication |
private function parseLocalFWS() : Result |
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{ |
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//use $this->parseFWS() |
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$foldingWS = new FoldingWhiteSpace($this->lexer); |
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$resultFWS = $foldingWS->parse(); |
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if ($resultFWS->isValid()) { |
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$this->warnings = array_merge($this->warnings, $foldingWS->getWarnings()); |
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} |
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return $resultFWS; |
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} |
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private function hasDotAtStart() : bool |
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{ |
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return $this->lexer->token['type'] === EmailLexer::S_DOT && null === $this->lexer->getPrevious()['type']; |
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} |
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View Code Duplication |
private function parseDoubleQuote() : Result |
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{ |
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$dquoteParser = new DoubleQuote($this->lexer); |
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$parseAgain = $dquoteParser->parse(); |
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$this->warnings = array_merge($this->warnings, $dquoteParser->getWarnings()); |
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return $parseAgain; |
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} |
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View Code Duplication |
private function parseComments(): Result |
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{ |
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$commentParser = new Comment($this->lexer, new LocalComment()); |
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$result = $commentParser->parse(); |
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$this->warnings = array_merge($this->warnings, $commentParser->getWarnings()); |
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if($result->isInvalid()) { |
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return $result; |
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} |
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return $result; |
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} |
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private function validateEscaping() : Result |
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{ |
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//Backslash found |
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if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) { |
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return new ValidEmail(); |
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} |
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if ($this->lexer->isNextToken(EmailLexer::GENERIC)) { |
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return new InvalidEmail(new ExpectingATEXT('Found ATOM after escaping'), $this->lexer->token['value']); |
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} |
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View Code Duplication |
if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) { |
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return new ValidEmail(); |
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} |
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return new ValidEmail(); |
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} |
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} |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.