forked from doctrine/annotations
/
DocLexer.php
132 lines (115 loc) · 3.95 KB
/
DocLexer.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\Common\Annotations;
use Doctrine\Common\Lexer\AbstractLexer;
/**
* Simple lexer for docblock annotations.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
final class DocLexer extends AbstractLexer
{
const T_NONE = 1;
const T_INTEGER = 2;
const T_STRING = 3;
const T_FLOAT = 4;
// All tokens that are also identifiers should be >= 100
const T_IDENTIFIER = 100;
const T_AT = 101;
const T_CLOSE_CURLY_BRACES = 102;
const T_CLOSE_PARENTHESIS = 103;
const T_COMMA = 104;
const T_EQUALS = 105;
const T_FALSE = 106;
const T_NAMESPACE_SEPARATOR = 107;
const T_OPEN_CURLY_BRACES = 108;
const T_OPEN_PARENTHESIS = 109;
const T_TRUE = 110;
const T_NULL = 111;
const T_COLON = 112;
protected $noCase = array(
'@' => self::T_AT,
',' => self::T_COMMA,
'(' => self::T_OPEN_PARENTHESIS,
')' => self::T_CLOSE_PARENTHESIS,
'{' => self::T_OPEN_CURLY_BRACES,
'}' => self::T_CLOSE_CURLY_BRACES,
'=' => self::T_EQUALS,
':' => self::T_COLON,
'\\' => self::T_NAMESPACE_SEPARATOR
);
protected $withCase = array(
'true' => self::T_TRUE,
'false' => self::T_FALSE,
'null' => self::T_NULL
);
/**
* {@inheritdoc}
*/
protected function getCatchablePatterns()
{
return array(
'[a-z_\\\][a-z0-9_\:\\\]*[a-z_]{1}',
'(?:[+-]?[0-9]+(?:[\.][0-9]+)*)(?:[eE][+-]?[0-9]+)?',
'"(?:[^"]|"")*"',
);
}
/**
* {@inheritdoc}
*/
protected function getNonCatchablePatterns()
{
return array('\s+', '\*+', '(.)');
}
/**
* {@inheritdoc}
*
* @param string $value
*
* @return int
*/
protected function getType(&$value)
{
$type = self::T_NONE;
if ($value[0] === '"') {
$value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));
return self::T_STRING;
}
if (isset($this->noCase[$value])) {
return $this->noCase[$value];
}
if ($value[0] === '_' || $value[0] === '\\' || ctype_alpha($value[0])) {
return self::T_IDENTIFIER;
}
$lowerValue = strtolower($value);
if (isset($this->withCase[$lowerValue])) {
return $this->withCase[$lowerValue];
}
// Checking numeric value
if (is_numeric($value)) {
return (strpos($value, '.') !== false || stripos($value, 'e') !== false)
? self::T_FLOAT : self::T_INTEGER;
}
return $type;
}
}