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<?php /* * $Id: BaseFilterReader.php 325 2007-12-20 15:44:58Z hans $ * * 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 LGPL. For more information please see * <http://phing.info>. */ include_once 'phing/system/io/FilterReader.php'; include_once 'phing/system/io/StringReader.php'; /** * Base class for core filter readers. * * @author <a href="mailto:yl@seasonfive.com">Yannick Lecaillez</a> * @version $Revision: 1.8 $ $Date: 2007-12-20 15:44:58 +0000 (Thu, 20 Dec 2007) $ * @access public * @see FilterReader * @package phing.filters */ class BaseFilterReader extends FilterReader { /** Have the parameters passed been interpreted? */ protected $initialized = false; /** The Phing project this filter is part of. */ protected $project = null; /** * Constructor used by Phing's introspection mechanism. * The original filter reader is only used for chaining * purposes, never for filtering purposes (and indeed * it would be useless for filtering purposes, as it has * no real data to filter). ChainedReaderHelper uses * this placeholder instance to create a chain of real filters. * * @param Reader $in */ function __construct($in = null) { if ($in === null) { $dummy = ""; $in = new StringReader($dummy); } parent::__construct($in); } /** * Returns the initialized status. * * @return boolean whether or not the filter is initialized */ function getInitialized() { return $this->initialized; } /** * Sets the initialized status. * * @param boolean $initialized Whether or not the filter is initialized. */ function setInitialized($initialized) { $this->initialized = (boolean) $initialized; } /** * Sets the project to work with. * * @param object $project The project this filter is part of. * Should not be <code>null</code>. */ function setProject(Project $project) { // type check, error must never occur, bad code of it does $this->project = $project; } /** * Returns the project this filter is part of. * * @return object The project this filter is part of */ function getProject() { return $this->project; } /** * Reads characters. * * @param off Offset at which to start storing characters. * @param len Maximum number of characters to read. * * @return Characters read, or -1 if the end of the stream * has been reached * * @throws IOException If an I/O error occurs */ function read($len = null) { return $this->in->read($len); } /** * Reads a line of text ending with '\n' (or until the end of the stream). * The returned String retains the '\n'. * * @return the line read, or <code>null</code> if the end of the stream has already been reached * * @throws IOException if the underlying reader throws one during * reading */ function readLine() { $line = null; while ( ($ch = $this->in->read(1)) !== -1 ) { $line .= $ch; if ( $ch === "\n" ) break; } return $line; } /** * Returns whether the end of file has been reached with input stream. * @return boolean */ function eof() { return $this->in->eof(); } /** * Convenience method to support logging in filters. * @param string $msg Message to log. * @param int $level Priority level. */ function log($msg, $level = Project::MSG_INFO) { if ($this->project !== null) { $this->project->log("[filter:".get_class($this)."] ".$msg, $level); } } }
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