102 lines
2.6 KiB
PHP
102 lines
2.6 KiB
PHP
<?php
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/**
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* Copyright 2009-2016 Horde LLC (http://www.horde.org/)
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*
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* See the enclosed file COPYING for license information (LGPL). If you
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* did not receive this file, see http://www.horde.org/licenses/lgpl21.
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*
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* @category Horde
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* @copyright 2009-2016 Horde LLC
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package Stream_Filter
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*/
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/**
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* Stream filter class to convert EOL characters.
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*
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* Usage:
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* stream_filter_register('horde_eol', 'Horde_Stream_Filter_Eol');
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* stream_filter_[app|pre]pend($stream, 'horde_eol',
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* [ STREAM_FILTER_[READ|WRITE|ALL] ],
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* [ $params ]);
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*
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* $params is an array that can contain the following:
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* - eol: (string) The EOL string to use.
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* DEFAULT: <CR><LF> ("\r\n")
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*
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* @author Michael Slusarz <slusarz@horde.org>
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* @category Horde
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* @copyright 2009-2016 Horde LLC
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* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
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* @package Stream_Filter
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*/
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class Horde_Stream_Filter_Eol extends php_user_filter
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{
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/**
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* Replacement data
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*
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* @var mixed
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*/
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protected $_replace;
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/**
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* Search array.
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*
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* @var mixed
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*/
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protected $_search;
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/**
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* First character of a multi-character EOL.
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*
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* @var string
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*/
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protected $_split = null;
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/**
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* @see stream_filter_register()
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*/
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public function onCreate()
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{
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$eol = isset($this->params['eol'])
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? $this->params['eol']
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: "\r\n";
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if (!strlen($eol)) {
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$this->_search = array("\r", "\n");
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$this->_replace = '';
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} elseif (in_array($eol, array("\r", "\n"))) {
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$this->_search = array("\r\n", ($eol == "\r") ? "\n" : "\r");
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$this->_replace = $eol;
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} else {
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$this->_search = array("\r\n", "\r", "\n");
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$this->_replace = array("\n", "\n", $eol);
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if (strlen($eol) > 1) {
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$this->_split = $eol[0];
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}
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}
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return true;
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}
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/**
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* @see stream_filter_register()
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*/
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public function filter($in, $out, &$consumed, $closing)
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{
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while ($bucket = stream_bucket_make_writeable($in)) {
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if (!is_null($this->_split) &&
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($bucket->data[$bucket->datalen - 1] == $this->_split)) {
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$bucket->data = substr($bucket->data, 0, -1);
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}
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$bucket->data = str_replace($this->_search, $this->_replace, $bucket->data);
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$consumed += $bucket->datalen;
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stream_bucket_append($out, $bucket);
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}
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return PSFS_PASS_ON;
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}
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}
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