Chris@18: <?php
Chris@18: 
Chris@18: namespace Egulias\EmailValidator\Parser;
Chris@18: 
Chris@18: use Egulias\EmailValidator\Exception\DotAtEnd;
Chris@18: use Egulias\EmailValidator\Exception\DotAtStart;
Chris@18: use Egulias\EmailValidator\EmailLexer;
Chris@18: use Egulias\EmailValidator\EmailValidator;
Chris@18: use Egulias\EmailValidator\Exception\ExpectingAT;
Chris@18: use Egulias\EmailValidator\Exception\ExpectingATEXT;
Chris@18: use Egulias\EmailValidator\Exception\UnclosedQuotedString;
Chris@18: use Egulias\EmailValidator\Exception\UnopenedComment;
Chris@18: use Egulias\EmailValidator\Warning\CFWSWithFWS;
Chris@18: use Egulias\EmailValidator\Warning\LocalTooLong;
Chris@18: 
Chris@18: class LocalPart extends Parser
Chris@18: {
Chris@18:     public function parse($localPart)
Chris@18:     {
Chris@18:         $parseDQuote = true;
Chris@18:         $closingQuote = false;
Chris@18:         $openedParenthesis = 0;
Chris@18: 
Chris@18:         while ($this->lexer->token['type'] !== EmailLexer::S_AT && $this->lexer->token) {
Chris@18:             if ($this->lexer->token['type'] === EmailLexer::S_DOT && !$this->lexer->getPrevious()) {
Chris@18:                 throw new DotAtStart();
Chris@18:             }
Chris@18: 
Chris@18:             $closingQuote = $this->checkDQUOTE($closingQuote);
Chris@18:             if ($closingQuote && $parseDQuote) {
Chris@18:                 $parseDQuote = $this->parseDoubleQuote();
Chris@18:             }
Chris@18: 
Chris@18:             if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
Chris@18:                 $this->parseComments();
Chris@18:                 $openedParenthesis += $this->getOpenedParenthesis();
Chris@18:             }
Chris@18:             if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
Chris@18:                 if ($openedParenthesis === 0) {
Chris@18:                     throw new UnopenedComment();
Chris@18:                 } else {
Chris@18:                     $openedParenthesis--;
Chris@18:                 }
Chris@18:             }
Chris@18: 
Chris@18:             $this->checkConsecutiveDots();
Chris@18: 
Chris@18:             if ($this->lexer->token['type'] === EmailLexer::S_DOT &&
Chris@18:                 $this->lexer->isNextToken(EmailLexer::S_AT)
Chris@18:             ) {
Chris@18:                 throw new DotAtEnd();
Chris@18:             }
Chris@18: 
Chris@18:             $this->warnEscaping();
Chris@18:             $this->isInvalidToken($this->lexer->token, $closingQuote);
Chris@18: 
Chris@18:             if ($this->isFWS()) {
Chris@18:                 $this->parseFWS();
Chris@18:             }
Chris@18: 
Chris@18:             $this->lexer->moveNext();
Chris@18:         }
Chris@18: 
Chris@18:         $prev = $this->lexer->getPrevious();
Chris@18:         if (strlen($prev['value']) > LocalTooLong::LOCAL_PART_LENGTH) {
Chris@18:             $this->warnings[LocalTooLong::CODE] = new LocalTooLong();
Chris@18:         }
Chris@18:     }
Chris@18: 
Chris@18:     protected function parseDoubleQuote()
Chris@18:     {
Chris@18:         $parseAgain = true;
Chris@18:         $special = array(
Chris@18:             EmailLexer::S_CR => true,
Chris@18:             EmailLexer::S_HTAB => true,
Chris@18:             EmailLexer::S_LF => true
Chris@18:         );
Chris@18: 
Chris@18:         $invalid = array(
Chris@18:             EmailLexer::C_NUL => true,
Chris@18:             EmailLexer::S_HTAB => true,
Chris@18:             EmailLexer::S_CR => true,
Chris@18:             EmailLexer::S_LF => true
Chris@18:         );
Chris@18:         $setSpecialsWarning = true;
Chris@18: 
Chris@18:         $this->lexer->moveNext();
Chris@18: 
Chris@18:         while ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE && $this->lexer->token) {
Chris@18:             $parseAgain = false;
Chris@18:             if (isset($special[$this->lexer->token['type']]) && $setSpecialsWarning) {
Chris@18:                 $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
Chris@18:                 $setSpecialsWarning = false;
Chris@18:             }
Chris@18:             if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) {
Chris@18:                 $this->lexer->moveNext();
Chris@18:             }
Chris@18: 
Chris@18:             $this->lexer->moveNext();
Chris@18: 
Chris@18:             if (!$this->escaped() && isset($invalid[$this->lexer->token['type']])) {
Chris@18:                 throw new ExpectingATEXT();
Chris@18:             }
Chris@18:         }
Chris@18: 
Chris@18:         $prev = $this->lexer->getPrevious();
Chris@18: 
Chris@18:         if ($prev['type'] === EmailLexer::S_BACKSLASH) {
Chris@18:             if (!$this->checkDQUOTE(false)) {
Chris@18:                 throw new UnclosedQuotedString();
Chris@18:             }
Chris@18:         }
Chris@18: 
Chris@18:         if (!$this->lexer->isNextToken(EmailLexer::S_AT) && $prev['type'] !== EmailLexer::S_BACKSLASH) {
Chris@18:             throw new ExpectingAT();
Chris@18:         }
Chris@18: 
Chris@18:         return $parseAgain;
Chris@18:     }
Chris@18: 
Chris@18:     protected function isInvalidToken($token, $closingQuote)
Chris@18:     {
Chris@18:         $forbidden = array(
Chris@18:             EmailLexer::S_COMMA,
Chris@18:             EmailLexer::S_CLOSEBRACKET,
Chris@18:             EmailLexer::S_OPENBRACKET,
Chris@18:             EmailLexer::S_GREATERTHAN,
Chris@18:             EmailLexer::S_LOWERTHAN,
Chris@18:             EmailLexer::S_COLON,
Chris@18:             EmailLexer::S_SEMICOLON,
Chris@18:             EmailLexer::INVALID
Chris@18:         );
Chris@18: 
Chris@18:         if (in_array($token['type'], $forbidden) && !$closingQuote) {
Chris@18:             throw new ExpectingATEXT();
Chris@18:         }
Chris@18:     }
Chris@18: }