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<?php |
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/** |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the LGPL. For more information please see |
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* <http://phing.info>. |
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*/ |
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/** |
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* Strips whitespace from [php] files using PHP stripwhitespace() method. |
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* |
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* @author Hans Lellelid, [email protected] |
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* @see FilterReader |
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* @package phing.filters |
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*/ |
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class StripWhitespace extends BaseFilterReader implements ChainableReader |
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{ |
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private $processed = false; |
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/** |
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* Returns the stream without Php comments and whitespace. |
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* |
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* @param int $len |
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* @return string the resulting stream, or -1 |
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* if the end of the resulting stream has been reached |
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* @throws IOException |
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* @throws NullPointerException |
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*/ |
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public function read($len = null) |
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{ |
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if ($this->processed === true) { |
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return -1; // EOF |
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} |
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// Read XML |
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$php = null; |
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while (($buffer = $this->in->read($len)) !== -1) { |
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$php .= $buffer; |
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} |
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if ($php === null) { // EOF? |
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return -1; |
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} |
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if (empty($php)) { |
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$this->log("PHP file is empty!", Project::MSG_WARN); |
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return ''; // return empty string, don't attempt to strip whitespace |
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} |
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// write buffer to a temporary file, since php_strip_whitespace() needs a filename |
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$file = new SplFileObject(tempnam(FileUtils::getTempDir(), mt_rand()), 'w+'); |
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$file->fwrite($php); |
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$name = $file->getRealPath(); |
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$output = php_strip_whitespace($name); |
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$file = null; |
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unlink($name); |
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$this->processed = true; |
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return $output; |
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} |
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/** |
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* Creates a new StripWhitespace using the passed in |
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* Reader for instantiation. |
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* |
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* @param A|Reader $reader |
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* @return StripWhitespace a new filter based on this configuration, but filtering |
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* the specified reader |
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* @internal param A $reader Reader object providing the underlying stream. |
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* Must not be <code>null</code>. |
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*/ |
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public function chain(Reader $reader): Reader |
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{ |
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$newFilter = new StripWhitespace($reader); |
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$newFilter->setProject($this->getProject()); |
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return $newFilter; |
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} |
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} |
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phingofficial /
phing
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