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<?php
/*
* $Id: Regexp.php 526 2009-08-11 12:11:17Z mrook $
*
* 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>.
*/
/**
* A factory class for regex functions.
* @author Hans Lellelid <hans@xmpl.org>
* @package phing.util.regexp
* @version $Revision: 526 $
*/
class Regexp {
/**
* Matching groups found.
* @var array
*/
private $groups = array();
/**
* Pattern to match.
* @var string
*/
private $pattern;
/**
* Replacement pattern.
* @var string
*/
private $replace;
/**
* The regex engine -- e.g. 'preg' or 'ereg';
* @var RegexpEngine
*/
private $engine;
/**
* Constructor sets the regex engine to use (preg by default).
* @param string $_engineType The regex engine to use.
*/
function __construct($engineType='preg') {
if ($engineType == 'preg') {
include_once 'phing/util/regexp/PregEngine.php';
$this->engine = new PregEngine();
} elseif ($engineType == 'ereg') {
include_once 'phing/util/regexp/EregEngine.php';
$this->engine = new EregEngine();
} else {
throw new BuildException("Invalid engine type for Regexp: " . $engineType);
}
}
/**
* Sets pattern to use for matching.
* @param string $pat The pattern to match on.
* @return void
*/
public function setPattern($pat) {
$this->pattern = (string) $pat;
}
/**
* Gets pattern to use for matching.
* @return string The pattern to match on.
*/
public function getPattern() {
return $this->pattern;
}
/**
* Sets replacement string.
* @param string $rep The pattern to replace matches with.
* @return void
*/
public function setReplace($rep) {
$this->replace = (string) $rep;
}
/**
* Gets replacement string.
* @return string The pattern to replace matches with.
* @return void
*/
public function getReplace() {
return $this->replace;
}
/**
* Performs match of specified pattern against $subject.
* @param string $subject The subject, on which to perform matches.
* @return boolean Whether or not pattern matches subject string passed.
*/
public function matches($subject) {
if($this->pattern === null) {
throw new Exception("No pattern specified for regexp match().");
}
return $this->engine->match($this->pattern, $subject, $this->groups);
}
/**
* Performs replacement of specified pattern and replacement strings.
* @param string $subject Text on which to perform replacement.
* @return string subject after replacement has been performed.
*/
public function replace($subject) {
if ($this->pattern === null || $this->replace === null) {
throw new Exception("Missing pattern or replacement string regexp replace().");
}
return $this->engine->replace($this->pattern, $this->replace, $subject);
}
/**
* Get array of matched groups.
* @return array Matched groups
*/
function getGroups() {
return $this->groups;
}
/**
* Get specific matched group.
* @param integer $idx
* @return string specified group or NULL if group is not set.
*/
function getGroup($idx) {
if (!isset($this->groups[$idx])) {
return null;
}
return $this->groups[$idx];
}
/**
* Sets whether the regexp matching is case insensitive.
* (default is false -- i.e. case sensisitive)
* @param boolean $bit
*/
function setIgnoreCase($bit) {
$this->engine->setIgnoreCase($bit);
}
/**
* Gets whether the regexp matching is case insensitive.
* @return boolean
*/
function getIgnoreCase() {
return $this->engine->getIgnoreCase();
}
}
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