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<?php
namespace Egulias\EmailValidator;
use Egulias\EmailValidator\Result\Result;
use Egulias\EmailValidator\Result\ValidEmail;
use Egulias\EmailValidator\Result\InvalidEmail;
use Egulias\EmailValidator\Result\Reason\ExpectingATEXT;
abstract class Parser
{
/**
* @var Warning\Warning[]
*/
protected $warnings = [];
/**
* @var EmailLexer
*/
protected $lexer;
/**
* id-left "@" id-right
*/
abstract protected function parseRightFromAt() : Result;
abstract protected function parseLeftFromAt() : Result;
abstract protected function preLeftParsing() : Result;
public function __construct(EmailLexer $lexer)
{
$this->lexer = $lexer;
}
public function parse(string $str) : Result
{
$this->lexer->setInput($str);
if ($this->lexer->hasInvalidTokens()) {
return new InvalidEmail(new ExpectingATEXT("Invalid tokens found"), $this->lexer->token["value"]);
}
$preParsingResult = $this->preLeftParsing();
if ($preParsingResult->isInvalid()) {
return $preParsingResult;
}
$localPartResult = $this->parseLeftFromAt();
if ($localPartResult->isInvalid()) {
return $localPartResult;
}
$domainPartResult = $this->parseRightFromAt();
if ($domainPartResult->isInvalid()) {
return $domainPartResult;
}
return new ValidEmail();
}
/**
* @return Warning\Warning[]
*/
public function getWarnings() : array
{
return $this->warnings;
}
protected function hasAtToken() : bool
{
$this->lexer->moveNext();
$this->lexer->moveNext();
return ((array) $this->lexer->token)['type'] !== EmailLexer::S_AT;
}
}