vendor/doctrine/orm/lib/Doctrine/ORM/Query/Lexer.php

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<?php
/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.doctrine-project.org>.
 */

namespace Doctrine\ORM\Query;

/**
 * Scans a DQL query for tokens.
 *
 * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author Janne Vanhala <jpvanhal@cc.hut.fi>
 * @author Roman Borschel <roman@code-factory.org>
 * @since 2.0
 */
class Lexer extends \Doctrine\Common\Lexer
{
    // All tokens that are not valid identifiers must be < 100
    const T_NONE                = 1;
    const T_INTEGER             = 2;
    const T_STRING              = 3;
    const T_INPUT_PARAMETER     = 4;
    const T_FLOAT               = 5;
    const T_CLOSE_PARENTHESIS   = 6;
    const T_OPEN_PARENTHESIS    = 7;
    const T_COMMA               = 8;
    const T_DIVIDE              = 9;
    const T_DOT                 = 10;
    const T_EQUALS              = 11;
    const T_GREATER_THAN        = 12;
    const T_LOWER_THAN          = 13;
    const T_MINUS               = 14;
    const T_MULTIPLY            = 15;
    const T_NEGATE              = 16;
    const T_PLUS                = 17;
    const T_OPEN_CURLY_BRACE    = 18;
    const T_CLOSE_CURLY_BRACE   = 19;

    // All tokens that are also identifiers should be >= 100
    const T_IDENTIFIER          = 100;
    const T_ALL                 = 101;
    const T_AND                 = 102;
    const T_ANY                 = 103;
    const T_AS                  = 104;
    const T_ASC                 = 105;
    const T_AVG                 = 106;