Chris@0: <?php
Chris@0: /*
Chris@0:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
Chris@0:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
Chris@0:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
Chris@0:  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
Chris@0:  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
Chris@0:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
Chris@0:  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
Chris@0:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
Chris@0:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Chris@0:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Chris@0:  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@0:  *
Chris@0:  * This software consists of voluntary contributions made by many individuals
Chris@0:  * and is licensed under the MIT license. For more information, see
Chris@0:  * <http://www.doctrine-project.org>.
Chris@0:  */
Chris@0: 
Chris@0: namespace Doctrine\Common\Annotations;
Chris@0: 
Chris@0: use Doctrine\Common\Lexer\AbstractLexer;
Chris@0: 
Chris@0: /**
Chris@0:  * Simple lexer for docblock annotations.
Chris@0:  *
Chris@0:  * @author Benjamin Eberlei <kontakt@beberlei.de>
Chris@0:  * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
Chris@0:  * @author Jonathan Wage <jonwage@gmail.com>
Chris@0:  * @author Roman Borschel <roman@code-factory.org>
Chris@0:  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
Chris@0:  */
Chris@0: final class DocLexer extends AbstractLexer
Chris@0: {
Chris@0:     const T_NONE                = 1;
Chris@0:     const T_INTEGER             = 2;
Chris@0:     const T_STRING              = 3;
Chris@0:     const T_FLOAT               = 4;
Chris@0: 
Chris@0:     // All tokens that are also identifiers should be >= 100
Chris@0:     const T_IDENTIFIER          = 100;
Chris@0:     const T_AT                  = 101;
Chris@0:     const T_CLOSE_CURLY_BRACES  = 102;
Chris@0:     const T_CLOSE_PARENTHESIS   = 103;
Chris@0:     const T_COMMA               = 104;
Chris@0:     const T_EQUALS              = 105;
Chris@0:     const T_FALSE               = 106;
Chris@0:     const T_NAMESPACE_SEPARATOR = 107;
Chris@0:     const T_OPEN_CURLY_BRACES   = 108;
Chris@0:     const T_OPEN_PARENTHESIS    = 109;
Chris@0:     const T_TRUE                = 110;
Chris@0:     const T_NULL                = 111;
Chris@0:     const T_COLON               = 112;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var array
Chris@0:      */
Chris@0:     protected $noCase = array(
Chris@0:         '@'  => self::T_AT,
Chris@0:         ','  => self::T_COMMA,
Chris@0:         '('  => self::T_OPEN_PARENTHESIS,
Chris@0:         ')'  => self::T_CLOSE_PARENTHESIS,
Chris@0:         '{'  => self::T_OPEN_CURLY_BRACES,
Chris@0:         '}'  => self::T_CLOSE_CURLY_BRACES,
Chris@0:         '='  => self::T_EQUALS,
Chris@0:         ':'  => self::T_COLON,
Chris@0:         '\\' => self::T_NAMESPACE_SEPARATOR
Chris@0:     );
Chris@0: 
Chris@0:     /**
Chris@0:      * @var array
Chris@0:      */
Chris@0:     protected $withCase = array(
Chris@0:         'true'  => self::T_TRUE,
Chris@0:         'false' => self::T_FALSE,
Chris@0:         'null'  => self::T_NULL
Chris@0:     );
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function getCatchablePatterns()
Chris@0:     {
Chris@0:         return array(
Chris@0:             '[a-z_\\\][a-z0-9_\:\\\]*[a-z_][a-z0-9_]*',
Chris@0:             '(?:[+-]?[0-9]+(?:[\.][0-9]+)*)(?:[eE][+-]?[0-9]+)?',
Chris@0:             '"(?:""|[^"])*+"',
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function getNonCatchablePatterns()
Chris@0:     {
Chris@0:         return array('\s+', '\*+', '(.)');
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function getType(&$value)
Chris@0:     {
Chris@0:         $type = self::T_NONE;
Chris@0: 
Chris@0:         if ($value[0] === '"') {
Chris@0:             $value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));
Chris@0: 
Chris@0:             return self::T_STRING;
Chris@0:         }
Chris@0: 
Chris@0:         if (isset($this->noCase[$value])) {
Chris@0:             return $this->noCase[$value];
Chris@0:         }
Chris@0: 
Chris@0:         if ($value[0] === '_' || $value[0] === '\\' || ctype_alpha($value[0])) {
Chris@0:             return self::T_IDENTIFIER;
Chris@0:         }
Chris@0: 
Chris@0:         $lowerValue = strtolower($value);
Chris@0: 
Chris@0:         if (isset($this->withCase[$lowerValue])) {
Chris@0:             return $this->withCase[$lowerValue];
Chris@0:         }
Chris@0: 
Chris@0:         // Checking numeric value
Chris@0:         if (is_numeric($value)) {
Chris@0:             return (strpos($value, '.') !== false || stripos($value, 'e') !== false)
Chris@0:                 ? self::T_FLOAT : self::T_INTEGER;
Chris@0:         }
Chris@0: 
Chris@0:         return $type;
Chris@0:     }
Chris@0: }