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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 identifiers or keywords that could be considered as identifiers should be >= 100
const T_ALIASED_NAME = 100;
const T_FULLY_QUALIFIED_NAME = 101;
const T_IDENTIFIER = 102;
// All keyword tokens should be >= 200
const T_ALL = 200;
const T_AND = 201;
const T_ANY = 202;
const T_AS = 203;
const T_ASC = 204;
const T_AVG = 205;
const T_BETWEEN = 206;
const T_BOTH = 207;
const T_BY = 208;
const T_CASE = 209;
const T_COALESCE = 210;
const T_COUNT = 211;
const T_DELETE = 212;
const T_DESC = 213;
const T_DISTINCT = 214;
const T_ELSE = 215;
const T_EMPTY = 216;
const T_END = 217;
const T_ESCAPE = 218;
const T_EXISTS = 219;
const T_FALSE = 220;
const T_FROM = 221;
const T_GROUP = 222;
const T_HAVING = 223;
const T_HIDDEN = 224;
const T_IN = 225;
const T_INDEX = 226;
const T_INNER = 227;
const T_INSTANCE = 228;
const T_IS = 229;
const T_JOIN = 230;
const T_LEADING = 231;
const T_LEFT = 232;
const T_LIKE = 233;
const T_MAX = 234;
const T_MEMBER = 235;
const T_MIN = 236;
const T_NEW = 237;
const T_NOT = 238;
const T_NULL = 239;
const T_NULLIF = 240;
const T_OF = 241;
const T_OR = 242;
const T_ORDER = 243;
const T_OUTER = 244;
const T_PARTIAL = 245;
const T_SELECT = 246;
const T_SET = 247;
const T_SOME = 248;
const T_SUM = 249;
const T_THEN = 250;
const T_TRAILING = 251;
const T_TRUE = 252;
const T_UPDATE = 253;
const T_WHEN = 254;
const T_WHERE = 255;
const T_WITH = 256;
/**
* 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-z_][a-z0-9_]*(?:\\\[a-z_][a-z0-9_]*)*', // aliased name
'[a-z_\\\][a-z0-9_]*(?:\\\[a-z_][a-z0-9_]*)*', // identifier or qualified name
'(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?', // numbers
"'(?:[^']|'')*'", // quoted strings
'\?[0-9]*|:[a-z_][a-z0-9_]*' // parameters
);
}
/**
* {@inheritdoc}
*/
protected function getNonCatchablePatterns()
{
return array('\s+', '(.)');
}
/**
* {@inheritdoc}
*/
protected function getType(&$value)
{
$type = self::T_NONE;
switch (true) {
// Recognize numeric values
case (is_numeric($value)):
if (strpos($value, '.') !== false || stripos($value, 'e') !== false) {
return self::T_FLOAT;
}
return self::T_INTEGER;
// Recognize quoted strings
case ($value[0] === "'"):
$value = str_replace("''", "'", substr($value, 1, strlen($value) - 2));
return self::T_STRING;
// Recognize identifiers, aliased or qualified names
case (ctype_alpha($value[0]) || $value[0] === '_' || $value[0] === '\\'):
$name = 'Doctrine\ORM\Query\Lexer::T_' . strtoupper($value);
if (defined($name)) {
$type = constant($name);
if ($type > 100) {
return $type;
}
}
if (strpos($value, ':') !== false) {
return self::T_ALIASED_NAME;
}
if (strpos($value, '\\') !== false) {
return self::T_FULLY_QUALIFIED_NAME;
}
return self::T_IDENTIFIER;
// Recognize input parameters
case ($value[0] === '?' || $value[0] === ':'):
return self::T_INPUT_PARAMETER;
// Recognize symbols
case ($value === '.'): return self::T_DOT;
case ($value === ','): return self::T_COMMA;
case ($value === '('): return self::T_OPEN_PARENTHESIS;
case ($value === ')'): return self::T_CLOSE_PARENTHESIS;
case ($value === '='): return self::T_EQUALS;
case ($value === '>'): return self::T_GREATER_THAN;
case ($value === '<'): return self::T_LOWER_THAN;
case ($value === '+'): return self::T_PLUS;
case ($value === '-'): return self::T_MINUS;
case ($value === '*'): return self::T_MULTIPLY;
case ($value === '/'): return self::T_DIVIDE;
case ($value === '!'): return self::T_NEGATE;
case ($value === '{'): return self::T_OPEN_CURLY_BRACE;
case ($value === '}'): return self::T_CLOSE_CURLY_BRACE;
// Default
default:
// Do nothing
}
return $type;
}
}
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