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<?php /* * $Id: StripLineBreaks.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/filters/BaseParamFilterReader.php'; include_once 'phing/filters/ChainableReader.php'; /** * Filter to flatten the stream to a single line. * * Example: * * <pre><striplinebreaks/></pre> * * Or: * * <pre><filterreader classname="phing.filters.StripLineBreaks"/></pre> * * @author <a href="mailto:yl@seasonfive.com">Yannick Lecaillez</a> * @author hans lellelid, hans@velum.net * @version $Revision: 1.8 $ $Date: 2007-12-20 15:44:58 +0000 (Thu, 20 Dec 2007) $ * @access public * @see BaseParamFilterReader * @package phing.filters */ class StripLineBreaks extends BaseParamFilterReader implements ChainableReader { /** * Default line-breaking characters. * @var string */ const DEFAULT_LINE_BREAKS = "\r\n"; /** * Parameter name for the line-breaking characters parameter. * @var string */ const LINES_BREAKS_KEY = "linebreaks"; /** * The characters that are recognized as line breaks. * @var string */ private $_lineBreaks = "\r\n"; // self::DEFAULT_LINE_BREAKS; /** * Returns the filtered stream, only including * characters not in the set of line-breaking characters. * * @return mixed the resulting stream, or -1 * if the end of the resulting stream has been reached. * * @exception IOException if the underlying stream throws an IOException * during reading */ function read($len = null) { if ( !$this->getInitialized() ) { $this->_initialize(); $this->setInitialized(true); } $buffer = $this->in->read($len); if($buffer === -1) { return -1; } $buffer = preg_replace("/[".$this->_lineBreaks."]/", '', $buffer); return $buffer; } /** * Sets the line-breaking characters. * * @param string $lineBreaks A String containing all the characters to be * considered as line-breaking. */ function setLineBreaks($lineBreaks) { $this->_lineBreaks = (string) $lineBreaks; } /** * Gets the line-breaking characters. * * @return string A String containing all the characters that are considered as line-breaking. */ function getLineBreaks() { return $this->_lineBreaks; } /** * Creates a new StripLineBreaks using the passed in * Reader for instantiation. * * @param object A Reader object providing the underlying stream. * Must not be <code>null</code>. * * @return object A new filter based on this configuration, but filtering * the specified reader */ function chain(Reader $reader) { $newFilter = new StripLineBreaks($reader); $newFilter->setLineBreaks($this->getLineBreaks()); $newFilter->setInitialized(true); $newFilter->setProject($this->getProject()); return $newFilter; } /** * Parses the parameters to set the line-breaking characters. */ private function _initialize() { $userDefinedLineBreaks = null; $params = $this->getParameters(); if ( $params !== null ) { for($i = 0 ; $i<count($params) ; $i++) { if ( self::LINE_BREAKS_KEY === $params[$i]->getName() ) { $userDefinedLineBreaks = $params[$i]->getValue(); break; } } } if ( $userDefinedLineBreaks !== null ) { $this->_lineBreaks = $userDefinedLineBreaks; } } }
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