<?php
/**
 * package.xml parsing class, package.xml version 2.0
 *
 * PHP versions 4 and 5
 *
 * @category   pear
 * @package    PEAR
 * @author     Greg Beaver <cellog@php.net>
 * @copyright  1997-2009 The Authors
 * @license    http://opensource.org/licenses/bsd-license.php New BSD License
 * @version    CVS: $Id: v2.php 276385 2009-02-24 23:46:03Z dufuz $
 * @link       http://pear.php.net/package/PEAR
 * @since      File available since Release 1.4.0a1
 */
/**
 * base xml parser class
 */
require_once 'PEAR/XMLParser.php';
require_once 'PEAR/PackageFile/v2.php';
/**
 * Parser for package.xml version 2.0
 * @category   pear
 * @package    PEAR
 * @author     Greg Beaver <cellog@php.net>
 * @copyright  1997-2009 The Authors
 * @license    http://opensource.org/licenses/bsd-license.php New BSD License
 * @version    Release: @PEAR-VER@
 * @link       http://pear.php.net/package/PEAR
 * @since      Class available since Release 1.4.0a1
 */
class PEAR_PackageFile_Parser_v2 extends PEAR_XMLParser
{
    var $_config;
    var $_logger;
    var $_registry;

    function setConfig(&$c)
    {
        $this->_config = &$c;
        $this->_registry = &$c->getRegistry();
    }

    function setLogger(&$l)
    {
        $this->_logger = &$l;
    }
    /**
     * Unindent given string
     *
     * @param string $str The string that has to be unindented.
     * @return string
     * @access private
     */
    function _unIndent($str)
    {
        // remove leading newlines
        $str = preg_replace('/^[\r\n]+/', '', $str);
        // find whitespace at the beginning of the first line
        $indent_len = strspn($str, " \t");
        $indent = substr($str, 0, $indent_len);
        $data = '';
        // remove the same amount of whitespace from following lines
        foreach (explode("\n", $str) as $line) {
            if (substr($line, 0, $indent_len) == $indent) {
                $data .= substr($line, $indent_len) . "\n";
            } else {
                $data .= $line . "\n";
            }
        }
        return $data;
    }

    /**
     * post-process data
     *
     * @param string $data
     * @param string $element element name
     */
    function postProcess($data, $element)
    {
        if ($element == 'notes') {
            return trim($this->_unIndent($data));
        }
        return trim($data);
    }

    /**
     * @param string
     * @param string file name of the package.xml
     * @param string|false name of the archive this package.xml came from, if any
     * @param string class name to instantiate and return.  This must be PEAR_PackageFile_v2 or
     *               a subclass
     * @return PEAR_PackageFile_v2
     */
    function &parse($data, $file, $archive = false, $class = 'PEAR_PackageFile_v2')
    {
        if (PEAR::isError($err = parent::parse($data, $file))) {
            return $err;
        }

        $ret = new $class;
        $ret->encoding = $this->encoding;
        $ret->setConfig($this->_config);
        if (isset($this->_logger)) {
            $ret->setLogger($this->_logger);
        }

        $ret->fromArray($this->_unserializedData);
        $ret->setPackagefile($file, $archive);
        return $ret;
    }
}