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<?php /* * $Id: LineContainsRegexp.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/types/RegularExpression.php'; include_once 'phing/filters/ChainableReader.php'; /* * Filter which includes only those lines that contain the user-specified * regular expression matching strings. * * Example: * <pre><linecontainsregexp> * <regexp pattern="foo"> </linecontainsregexp></pre> * * Or: * * <pre><filterreader classname="phing.filters.LineContainsRegExp"> * <param type="regexp" value="foo"/> </filterreader></pre> * * This will fetch all those lines that contain the pattern <code>foo</code> * * @author Yannick Lecaillez <yl@seasonfive.com> * @author Hans Lellelid <hans@xmpl.org> * @version $Revision: 1.8 $ * @see FilterReader * @package phing.filters / class LineContainsRegexp extends BaseParamFilterReader implements ChainableReader { /* * Parameter name for regular expression. * @var string / const REGEXP_KEY = "regexp"; /* * Regular expressions that are applied against lines. * @var array / private $_regexps = array(); /* * Returns all lines in a buffer that contain specified strings. * @return mixed buffer, -1 on EOF / function read($len = null) { if ( !$this->getInitialized() ) { $this->_initialize(); $this->setInitialized(true); } $buffer = $this->in->read($len); if ($buffer === -1) { return -1; } $lines = explode("\n", $buffer); $matched = array(); $regexpsSize = count($this->_regexps); foreach($lines as $line) { for($i = 0 ; $i<$regexpsSize ; $i++) { $regexp = $this->_regexps[$i]; $re = $regexp->getRegexp($this->getProject()); $matches = $re->matches($line); if ( !$matches ) { $line = null; break; } } if($line !== null) { $matched[] = $line; } } $filtered_buffer = implode("\n", $matched); return $filtered_buffer; } /* * Adds a <code>regexp</code> element. * * @return object regExp The <code>regexp</code> element added. / function createRegexp() { $num = array_push($this->_regexps, new RegularExpression()); return $this->_regexps[$num-1]; } /* * Sets the vector of regular expressions which must be contained within * a line read from the original stream in order for it to match this * filter. * * @param regexps An array of regular expressions which must be contained * within a line in order for it to match in this filter. Must not be * <code>null</code>. / function setRegexps($regexps) { // type check, error must never occur, bad code of it does if ( !is_array($regexps) ) { throw new Exception("Excpected an 'array', got something else"); } $this->_regexps = $regexps; } /* * Returns the array of regular expressions which must be contained within * a line read from the original stream in order for it to match this * filter. * * @return array The array of regular expressions which must be contained within * a line read from the original stream in order for it to match this * filter. The returned object is "live" - in other words, changes made to * the returned object are mirrored in the filter. / function getRegexps() { return $this->_regexps; } /* * Creates a new LineContainsRegExp 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) { $newFilter = new LineContainsRegExp($reader); $newFilter->setRegexps($this->getRegexps()); $newFilter->setInitialized(true); $newFilter->setProject($this->getProject()); return $newFilter; } /* * Parses parameters to add user defined regular expressions. */ private function _initialize() { $params = $this->getParameters(); if ( $params !== null ) { for($i = 0 ; $i<count($params) ; $i++) { if ( self::REGEXP_KEY === $params[$i]->getType() ) { $pattern = $params[$i]->getValue(); $regexp = new RegularExpression(); $regexp->setPattern($pattern); array_push($this->_regexps, $regexp); } } } } }

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