Completed
Pull Request — 1.2 (#120)
by
unknown
06:26
created

EmailLexer::getPrevious()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 1
Bugs 0 Features 0
Metric Value
c 1
b 0
f 0
dl 0
loc 4
ccs 2
cts 2
cp 1
rs 10
cc 1
eloc 2
nc 1
nop 0
crap 1
1
<?php
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namespace Egulias\EmailValidator;
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use Doctrine\Common\Lexer\AbstractLexer;
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class EmailLexer extends AbstractLexer
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{
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    //ASCII values
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    const C_DEL              = 127;
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    const C_NUL              = 0;
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    const S_AT               = 64;
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    const S_BACKSLASH        = 92;
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    const S_DOT              = 46;
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    const S_DQUOTE           = 34;
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    const S_OPENPARENTHESIS  = 49;
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    const S_CLOSEPARENTHESIS = 261;
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    const S_OPENBRACKET      = 262;
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    const S_CLOSEBRACKET     = 263;
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    const S_HYPHEN           = 264;
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    const S_COLON            = 265;
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    const S_DOUBLECOLON      = 266;
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    const S_SP               = 267;
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    const S_HTAB             = 268;
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    const S_CR               = 269;
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    const S_LF               = 270;
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    const S_IPV6TAG          = 271;
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    const S_LOWERTHAN        = 272;
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    const S_GREATERTHAN      = 273;
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    const S_COMMA            = 274;
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    const S_SEMICOLON        = 275;
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    const S_OPENQBRACKET     = 276;
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    const S_CLOSEQBRACKET    = 277;
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    const S_SLASH            = 278;
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    const S_EMPTY            = null;
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    const GENERIC            = 300;
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    const CRLF               = 301;
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    const INVALID            = 302;
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    const ASCII_INVALID_FROM = 127;
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    const ASCII_INVALID_TO   = 199;
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    /**
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     * US-ASCII visible characters not valid for atext (@link http://tools.ietf.org/html/rfc5322#section-3.2.3)
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     *
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     * @var array
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     */
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    protected $charValue = array(
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        '('    => self::S_OPENPARENTHESIS,
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        ')'    => self::S_CLOSEPARENTHESIS,
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        '<'    => self::S_LOWERTHAN,
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        '>'    => self::S_GREATERTHAN,
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        '['    => self::S_OPENBRACKET,
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        ']'    => self::S_CLOSEBRACKET,
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        ':'    => self::S_COLON,
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        ';'    => self::S_SEMICOLON,
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        '@'    => self::S_AT,
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        '\\'   => self::S_BACKSLASH,
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        '/'    => self::S_SLASH,
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        ','    => self::S_COMMA,
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        '.'    => self::S_DOT,
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        '"'    => self::S_DQUOTE,
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        '-'    => self::S_HYPHEN,
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        '::'   => self::S_DOUBLECOLON,
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        ' '    => self::S_SP,
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        "\t"   => self::S_HTAB,
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        "\r"   => self::S_CR,
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        "\n"   => self::S_LF,
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        "\r\n" => self::CRLF,
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        'IPv6' => self::S_IPV6TAG,
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        '{'    => self::S_OPENQBRACKET,
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        '}'    => self::S_CLOSEQBRACKET,
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        ''     => self::S_EMPTY,
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        '\0'   => self::C_NUL,
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    );
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    protected $hasInvalidTokens = false;
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    protected $previous;
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    public function reset()
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    {
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        $this->hasInvalidTokens = false;
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        parent::reset();
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    }
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    public function hasInvalidTokens()
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    {
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        return $this->hasInvalidTokens;
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    }
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    /**
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     * @param $type
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     * @throws \UnexpectedValueException
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     * @return boolean
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     */
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    public function find($type)
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    {
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        $search = clone $this;
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        $search->skipUntil($type);
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        if (!$search->lookahead) {
0 ignored issues
show
Bug Best Practice introduced by
The expression $search->lookahead of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

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102 6
            throw new \UnexpectedValueException($type . ' not found');
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        }
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        return true;
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    }
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    /**
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     * getPrevious
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     *
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     * @return array token
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     */
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    public function getPrevious()
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    {
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        return $this->previous;
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    }
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    /**
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     * moveNext
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     *
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     * @return boolean
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     */
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    public function moveNext()
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    {
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        $this->previous = $this->token;
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        return parent::moveNext();
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    }
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    /**
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     * Lexical catchable patterns.
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     *
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     * @return string[]
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     */
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    protected function getCatchablePatterns()
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    {
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        return array(
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            '[a-zA-Z_]+[46]?', //ASCII and domain literal
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            '[^\x00-\x7F]',  //UTF-8
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            '[0-9]+',
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            '\r\n',
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            '::',
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            '\s+?',
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            '.',
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            );
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    }
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    /**
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     * Lexical non-catchable patterns.
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     *
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     * @return string[]
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     */
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    protected function getNonCatchablePatterns()
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    {
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        return array('[\xA0-\xff]+');
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    }
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    /**
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     * Retrieve token type. Also processes the token value if necessary.
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     *
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     * @param string $value
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     * @throws \InvalidArgumentException
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     * @return integer
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     */
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    protected function getType(&$value)
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    {
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        if ($this->isNullType($value)) {
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            return self::C_NUL;
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        }
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        if ($this->isValid($value)) {
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            return $this->charValue[$value];
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        }
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        if ($this->isUTF8Invalid($value)) {
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            $this->hasInvalidTokens = true;
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            return self::INVALID;
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        }
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        return  self::GENERIC;
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    }
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    protected function isValid($value)
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    {
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        if (isset($this->charValue[$value])) {
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            return true;
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        }
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        return false;
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    }
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    /**
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     * @param $value
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     * @return bool
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     */
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    protected function isNullType($value)
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    {
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        if ($value === "\0") {
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            return true;
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        }
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        return false;
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    }
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    /**
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     * @param $value
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     * @return bool
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     */
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    protected function isUTF8Invalid($value)
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    {
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        if (preg_match('/\p{Cc}+/u', $value)) {
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            return true;
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        }
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        return false;
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    }
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    protected function getModifiers()
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    {
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        return 'iu';
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    }
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}
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