221 lines
7.7 KiB
PHP
221 lines
7.7 KiB
PHP
<?php
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/*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the MIT license. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Query;
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/**
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* Scans a DQL query for tokens.
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*
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Janne Vanhala <jpvanhal@cc.hut.fi>
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* @author Roman Borschel <roman@code-factory.org>
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* @since 2.0
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*/
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class Lexer extends \Doctrine\Common\Lexer
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{
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// All tokens that are not valid identifiers must be < 100
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const T_NONE = 1;
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const T_INTEGER = 2;
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const T_STRING = 3;
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const T_INPUT_PARAMETER = 4;
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const T_FLOAT = 5;
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const T_CLOSE_PARENTHESIS = 6;
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const T_OPEN_PARENTHESIS = 7;
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const T_COMMA = 8;
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const T_DIVIDE = 9;
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const T_DOT = 10;
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const T_EQUALS = 11;
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const T_GREATER_THAN = 12;
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const T_LOWER_THAN = 13;
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const T_MINUS = 14;
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const T_MULTIPLY = 15;
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const T_NEGATE = 16;
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const T_PLUS = 17;
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const T_OPEN_CURLY_BRACE = 18;
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const T_CLOSE_CURLY_BRACE = 19;
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// All tokens that are identifiers or keywords that could be considered as identifiers should be >= 100
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const T_ALIASED_NAME = 100;
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const T_FULLY_QUALIFIED_NAME = 101;
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const T_IDENTIFIER = 102;
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// All keyword tokens should be >= 200
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const T_ALL = 200;
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const T_AND = 201;
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const T_ANY = 202;
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const T_AS = 203;
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const T_ASC = 204;
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const T_AVG = 205;
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const T_BETWEEN = 206;
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const T_BOTH = 207;
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const T_BY = 208;
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const T_CASE = 209;
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const T_COALESCE = 210;
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const T_COUNT = 211;
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const T_DELETE = 212;
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const T_DESC = 213;
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const T_DISTINCT = 214;
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const T_ELSE = 215;
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const T_EMPTY = 216;
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const T_END = 217;
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const T_ESCAPE = 218;
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const T_EXISTS = 219;
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const T_FALSE = 220;
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const T_FROM = 221;
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const T_GROUP = 222;
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const T_HAVING = 223;
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const T_HIDDEN = 224;
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const T_IN = 225;
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const T_INDEX = 226;
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const T_INNER = 227;
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const T_INSTANCE = 228;
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const T_IS = 229;
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const T_JOIN = 230;
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const T_LEADING = 231;
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const T_LEFT = 232;
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const T_LIKE = 233;
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const T_MAX = 234;
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const T_MEMBER = 235;
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const T_MIN = 236;
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const T_NEW = 237;
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const T_NOT = 238;
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const T_NULL = 239;
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const T_NULLIF = 240;
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const T_OF = 241;
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const T_OR = 242;
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const T_ORDER = 243;
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const T_OUTER = 244;
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const T_PARTIAL = 245;
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const T_SELECT = 246;
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const T_SET = 247;
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const T_SOME = 248;
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const T_SUM = 249;
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const T_THEN = 250;
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const T_TRAILING = 251;
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const T_TRUE = 252;
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const T_UPDATE = 253;
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const T_WHEN = 254;
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const T_WHERE = 255;
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const T_WITH = 256;
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/**
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* Creates a new query scanner object.
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*
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* @param string $input A query string.
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*/
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public function __construct($input)
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{
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$this->setInput($input);
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}
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/**
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* {@inheritdoc}
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*/
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protected function getCatchablePatterns()
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{
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return [
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'[a-z_][a-z0-9_]*\:[a-z_][a-z0-9_]*(?:\\\[a-z_][a-z0-9_]*)*', // aliased name
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'[a-z_\\\][a-z0-9_]*(?:\\\[a-z_][a-z0-9_]*)*', // identifier or qualified name
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'(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?', // numbers
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"'(?:[^']|'')*'", // quoted strings
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'\?[0-9]*|:[a-z_][a-z0-9_]*' // parameters
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];
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}
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/**
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* {@inheritdoc}
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*/
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protected function getNonCatchablePatterns()
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{
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return ['\s+', '(.)'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function getType(&$value)
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{
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$type = self::T_NONE;
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switch (true) {
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// Recognize numeric values
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case (is_numeric($value)):
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if (strpos($value, '.') !== false || stripos($value, 'e') !== false) {
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return self::T_FLOAT;
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}
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return self::T_INTEGER;
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// Recognize quoted strings
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case ($value[0] === "'"):
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$value = str_replace("''", "'", substr($value, 1, strlen($value) - 2));
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return self::T_STRING;
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// Recognize identifiers, aliased or qualified names
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case (ctype_alpha($value[0]) || $value[0] === '_' || $value[0] === '\\'):
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$name = 'Doctrine\ORM\Query\Lexer::T_' . strtoupper($value);
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if (defined($name)) {
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$type = constant($name);
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if ($type > 100) {
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return $type;
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}
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}
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if (strpos($value, ':') !== false) {
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return self::T_ALIASED_NAME;
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}
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if (strpos($value, '\\') !== false) {
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return self::T_FULLY_QUALIFIED_NAME;
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}
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return self::T_IDENTIFIER;
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// Recognize input parameters
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case ($value[0] === '?' || $value[0] === ':'):
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return self::T_INPUT_PARAMETER;
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// Recognize symbols
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case ($value === '.'): return self::T_DOT;
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case ($value === ','): return self::T_COMMA;
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case ($value === '('): return self::T_OPEN_PARENTHESIS;
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case ($value === ')'): return self::T_CLOSE_PARENTHESIS;
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case ($value === '='): return self::T_EQUALS;
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case ($value === '>'): return self::T_GREATER_THAN;
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case ($value === '<'): return self::T_LOWER_THAN;
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case ($value === '+'): return self::T_PLUS;
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case ($value === '-'): return self::T_MINUS;
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case ($value === '*'): return self::T_MULTIPLY;
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case ($value === '/'): return self::T_DIVIDE;
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case ($value === '!'): return self::T_NEGATE;
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case ($value === '{'): return self::T_OPEN_CURLY_BRACE;
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case ($value === '}'): return self::T_CLOSE_CURLY_BRACE;
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// Default
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default:
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// Do nothing
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}
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return $type;
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}
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}
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