128 lines
3.6 KiB
PHP
128 lines
3.6 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\Common\Annotations;
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/**
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* Simple lexer for docblock annotations.
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*
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
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* @since 2.0
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* @version $Revision: 3938 $
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Jonathan Wage <jonwage@gmail.com>
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* @author Roman Borschel <roman@code-factory.org>
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*/
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class Lexer extends \Doctrine\Common\Lexer
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{
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const T_NONE = 1;
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const T_FLOAT = 2;
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const T_INTEGER = 3;
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const T_STRING = 4;
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const T_IDENTIFIER = 5;
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const T_TRUE = 6;
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const T_FALSE = 7;
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/**
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* @inheritdoc
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*/
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protected function getCatchablePatterns()
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{
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return array(
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'[a-z_][a-z0-9_\\\]*',
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'(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?',
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'"(?:[^"]|"")*"'
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);
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}
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/**
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* @inheritdoc
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*/
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protected function getNonCatchablePatterns()
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{
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return array('\s+', '\*+', '(.)');
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}
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/**
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* @inheritdoc
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*/
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protected function _getType(&$value)
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{
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$type = self::T_NONE;
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$newVal = $this->_getNumeric($value);
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if ($newVal !== false){
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$value = $newVal;
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if (strpos($value, '.') !== false || stripos($value, 'e') !== false) {
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$type = self::T_FLOAT;
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} else {
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$type = self::T_INTEGER;
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}
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}
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if ($value[0] === '"') {
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$type = self::T_STRING;
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$value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));
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} else if (ctype_alpha($value[0]) || $value[0] === '_') {
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$type = $this->_checkLiteral($value);
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}
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return $type;
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}
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/**
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* Checks if a value is numeric or not
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*
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* @param mixed $value Value to be inspected
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* @return boolean|integer|float Processed value
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*/
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private function _getNumeric($value)
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{
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if ( ! is_scalar($value)) {
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return false;
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}
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// Checking for valid numeric numbers: 1.234, -1.234e-2
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if (is_numeric($value)) {
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return $value;
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}
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return false;
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}
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/**
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* Checks if an identifier is a keyword and returns its correct type.
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*
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* @param string $identifier identifier name
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* @return integer token type
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*/
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private function _checkLiteral($identifier)
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{
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$name = 'Doctrine\Common\Annotations\Lexer::T_' . strtoupper($identifier);
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if (defined($name)) {
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return constant($name);
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}
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return self::T_IDENTIFIER;
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}
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} |