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doctrine2/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 LGPL. For more information, see
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* <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
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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;
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const T_ALL = 101;
const T_AND = 102;
const T_ANY = 103;
const T_AS = 104;
const T_ASC = 105;
const T_AVG = 106;
const T_BETWEEN = 107;
const T_BOTH = 108;
const T_BY = 109;
const T_COUNT = 110;
const T_DELETE = 111;
const T_DESC = 112;
const T_DISTINCT = 113;
const T_EMPTY = 114;
const T_ESCAPE = 115;
const T_EXISTS = 116;
const T_FALSE = 117;
const T_FROM = 118;
const T_GROUP = 119;
const T_HAVING = 120;
const T_IN = 121;
const T_INDEX = 122;
const T_INNER = 123;
const T_IS = 124;
const T_JOIN = 125;
const T_LEADING = 126;
const T_LEFT = 127;
const T_LIKE = 128;
const T_MAX = 129;
const T_MEMBER = 130;
const T_MIN = 131;
const T_NOT = 132;
const T_NULL = 133;
const T_OF = 134;
const T_OR = 135;
const T_ORDER = 136;
const T_OUTER = 137;
const T_SELECT = 138;
const T_SET = 139;
const T_SIZE = 140;
const T_SOME = 141;
const T_SUM = 142;
const T_TRAILING = 143;
const T_TRUE = 144;
const T_UPDATE = 145;
const T_WHERE = 146;
const T_WITH = 147;
const T_PARTIAL = 148;
const T_MOD = 149;
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/**
* Creates a new query scanner object.
*
* @param string $input a query string
*/
public function __construct($input)
{
$this->setInput($input);
}
/**
* @inheritdoc
*/
protected function getCatchablePatterns()
{
return array(
'[a-z_][a-z0-9_\:\\\]*[a-z0-9_]{1}',
'(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?',
"'(?:[^']|'')*'",
'\?[1-9][0-9]*|:[a-z][a-z0-9_]+'
);
}
/**
* @inheritdoc
*/
protected function getNonCatchablePatterns()
{
return array('\s+', '(.)');
}
/**
* @inheritdoc
*/
protected function _getType(&$value)
{
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$type = self::T_NONE;
// Recognizing numeric values
if (is_numeric($value)) {
return (strpos($value, '.') !== false || stripos($value, 'e') !== false)
? self::T_FLOAT : self::T_INTEGER;
}
// Differentiate between quoted names, identifiers, input parameters and symbols
if ($value[0] === "'") {
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$value = str_replace("''", "'", substr($value, 1, strlen($value) - 2));
return self::T_STRING;
} else if (ctype_alpha($value[0]) || $value[0] === '_') {
$name = 'Doctrine\ORM\Query\Lexer::T_' . strtoupper($value);
if (defined($name)) {
$type = constant($name);
if ($type > 100) {
return $type;
}
}
return self::T_IDENTIFIER;
} else if ($value[0] === '?' || $value[0] === ':') {
return self::T_INPUT_PARAMETER;
} else {
switch ($value) {
case '.': return self::T_DOT;
case ',': return self::T_COMMA;
case '(': return self::T_OPEN_PARENTHESIS;
case ')': return self::T_CLOSE_PARENTHESIS;
case '=': return self::T_EQUALS;
case '>': return self::T_GREATER_THAN;
case '<': return self::T_LOWER_THAN;
case '+': return self::T_PLUS;
case '-': return self::T_MINUS;
case '*': return self::T_MULTIPLY;
case '/': return self::T_DIVIDE;
case '!': return self::T_NEGATE;
case '{': return self::T_OPEN_CURLY_BRACE;
case '}': return self::T_CLOSE_CURLY_BRACE;
default:
// Do nothing
break;
}
}
return $type;
}
}