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<?php /* * $Id $ * * 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/BaseFilterReader.php'; include_once 'phing/filters/ChainableReader.php'; /** * Strips whitespace from [php] files using PHP stripwhitespace() method. * * @author Hans Lellelid, hans@velum.net * @version $Revision$ $Date$ * @see FilterReader * @package phing.filters * @todo -c use new PHP functions to perform this instead of regex. */ class StripWhitespace extends BaseFilterReader implements ChainableReader { private $processed = false; /** * Returns the stream without Php comments and whitespace. * * @return the resulting stream, or -1 * if the end of the resulting stream has been reached * * @throws IOException if the underlying stream throws an IOException * during reading */ function read($len = null) { if ($this->processed === true) { return -1; // EOF } // Read XML $php = null; while ( ($buffer = $this->in->read($len)) !== -1 ) { $php .= $buffer; } if ($php === null ) { // EOF? return -1; } if(empty($php)) { $this->log("PHP file is empty!", Project::MSG_WARN); return ''; // return empty string, don't attempt to strip whitespace } // write buffer to a temporary file, since php_strip_whitespace() needs a filename $file = new PhingFile(tempnam(PhingFile::getTempDir(), 'stripwhitespace')); file_put_contents($file->getAbsolutePath(), $php); $output = php_strip_whitespace($file->getAbsolutePath()); unlink($file->getAbsolutePath()); $this->processed = true; return $output; } /** * Creates a new StripWhitespace using the passed in * Reader for instantiation. * * @param reader A Reader object providing the underlying stream. * Must not be <code>null</code>. * * @return a new filter based on this configuration, but filtering * the specified reader */ public function chain(Reader $reader) { $newFilter = new StripWhitespace($reader); $newFilter->setProject($this->getProject()); return $newFilter; } }
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