.
*/
include_once 'phing/filters/BaseParamFilterReader.php';
include_once 'phing/filters/ChainableReader.php';
/**
* Filter to flatten the stream to a single line.
*
* Example:
*
*
*
* Or:
*
*
*
* @author Yannick Lecaillez
* @author hans lellelid, hans@velum.net
* @version $Revision: 1.8 $ $Date: 2004/03/15 14:45:06 $
* @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 null.
*
* @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 ; $igetName() ) {
$userDefinedLineBreaks = $params[$i]->getValue();
break;
}
}
}
if ( $userDefinedLineBreaks !== null ) {
$this->_lineBreaks = $userDefinedLineBreaks;
}
}
}
?>