Current Path : C:/xampp/htdocs/moodle/lib/horde/framework/Horde/Stream/ |
Current File : C:/xampp/htdocs/moodle/lib/horde/framework/Horde/Stream/TempString.php |
<?php /** * Copyright 2014-2017 Horde LLC (http://www.horde.org/) * * See the enclosed file LICENSE for license information (LGPL). If you * did not receive this file, see http://www.horde.org/licenses/lgpl21. * * @category Horde * @copyright 2014-2017 Horde LLC * @license http://www.horde.org/licenses/lgpl21 LGPL 2.1 * @package Stream */ /** * Implementation of Horde_Stream that uses a PHP native string variable * until a certain size is reached, at which point it converts storage to a * PHP temporary stream. * * NOTE: Do NOT use this class if it's possible that a stream_filter will need * to be added to the stream by some client code. If the size of the data * does not exceed max_memory there will be no stream to attach to. * * @author Michael Slusarz <slusarz@horde.org> * @category Horde * @copyright 2014-2017 Horde LLC * @license http://www.horde.org/licenses/lgpl21 LGPL 2.1 * @package Stream * @since 1.6.0 * * @property-read boolean $use_stream If true, the object is using a PHP temp * stream internally. */ class Horde_Stream_TempString extends Horde_Stream_Temp { /** * String stream object. * * @var Horde_Stream_String */ protected $_string; /** */ public function __construct(array $opts = array()) { parent::__construct($opts); $temp = ''; $this->_string = new Horde_Stream_String(array( 'string' => $temp )); } /** */ protected function _init() { if (!isset($this->_params['max_memory'])) { $this->_params['max_memory'] = 2097152; } if (!$this->_string) { parent::_init(); } } /** */ public function __get($name) { switch ($name) { case 'stream': if ($this->_string) { return $this->_string->stream; } break; case 'use_stream': return !(bool)$this->_string; } return parent::__get($name); } /** */ public function __set($name, $value) { switch ($name) { case 'utf8_char': if ($this->_string) { $this->_string->utf8_char = $value; } break; } parent::__set($name, $value); } /** */ public function __clone() { if ($this->_string) { $this->_string = clone $this->_string; } else { parent::__clone(); } } /** */ public function __toString() { return $this->_string ? strval($this->_string) : parent::__toString(); } /** */ public function add($data, $reset = false) { if ($this->_string && is_string($data)) { if ((strlen($data) + $this->_string->length()) < $this->_params['max_memory']) { $this->_string->add($data, $reset); return; } parent::_init(); parent::add(strval($this->_string)); $this->seek($this->_string->pos(), false); unset($this->_string); } parent::add($data, $reset); } /** */ public function length($utf8 = false) { return $this->_string ? $this->_string->length($utf8) : parent::length($utf8); } /** */ public function getToChar($end, $all = true) { return $this->_string ? $this->_string->getToChar($end, $all) : parent::getToChar($end, $all); } /** */ public function peek($length = 1) { return $this->_string ? $this->_string->peek($length) : parent::peek($length); } /** */ public function search($char, $reverse = false, $reset = true) { return $this->_string ? $this->_string->search($char, $reverse, $reset) : parent::search($char, $reverse, $reset); } /** */ public function getString($start = null, $end = null) { return $this->_string ? $this->_string->getString($start, $end) : parent::getString($start, $end); } /** */ public function substring($start = 0, $length = null, $char = false) { return $this->_string ? $this->_string->substring($start, $length, $char) : parent::substring($start, $length, $char); } /** */ public function getChar() { return $this->_string ? $this->_string->getChar() : parent::getChar(); } /** */ public function pos() { return $this->_string ? $this->_string->pos() : parent::pos(); } /** */ public function rewind() { return $this->_string ? $this->_string->rewind() : parent::rewind(); } /** */ public function seek($offset = 0, $curr = true, $char = false) { return $this->_string ? $this->_string->seek($offset, $curr, $char) : parent::seek($offset, $curr, $char); } /** */ public function end($offset = 0) { return $this->_string ? $this->_string->end($offset) : parent::end($offset); } /** */ public function eof() { return $this->_string ? $this->_string->eof() : parent::eof(); } /* Serializable methods. */ /** */ public function serialize() { if ($this->_string) { $data = array( $this->_string, $this->_params ); } else { $data = parent::serialize(); } return serialize($data); } /** */ public function unserialize($data) { $data = unserialize($data); if ($data[0] instanceof Horde_Stream_String) { $this->_string = $data[0]; $this->_params = $data[1]; } else { parent::unserialize($data); } } }