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<?php
namespace Fisharebest\Webtrees\Report;
/**
* webtrees: online genealogy
* Copyright (C) 2015 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Class ReportParserBase
*/
class ReportParserBase {
/** @var resource The XML parser */
protected $xml_parser;
/** @var string Text contents of tags */
protected $text = '';
/**
* Create a parser for a report
*
* @param string $report The XML filename
* @param ReportBase $report_root
*/
public function __construct($report, ReportBase $report_root = null) {
$this->xml_parser = xml_parser_create();
xml_parser_set_option($this->xml_parser, XML_OPTION_CASE_FOLDING, false);
xml_set_element_handler($this->xml_parser, array($this, 'startElement'), array($this, 'endElement'));
xml_set_character_data_handler($this->xml_parser, array($this, 'characterData'));
$fp = fopen($report, 'r');
while (($data = fread($fp, 4096))) {
if (!xml_parse($this->xml_parser, $data, feof($fp))) {
throw new \DomainException(sprintf(
'XML error: %s at line %d',
xml_error_string(xml_get_error_code($this->xml_parser)),
xml_get_current_line_number($this->xml_parser)
));
}
}
xml_parser_free($this->xml_parser);
}
/**
* XML handler for an opening (or self-closing) tag.
*
* @param resource $parser The resource handler for the xml parser
* @param string $name The name of the xml element parsed
* @param string[] $attrs An array of key value pairs for the attributes
*/
protected function startElement($parser, $name, $attrs) {
$method = $name . 'StartHandler';
if (method_exists($this, $method)) {
$this->$method($attrs);
}
}
/**
* XML handler for a closing tag.
*
* @param resource $parser the resource handler for the xml parser
* @param string $name the name of the xml element parsed
*/
protected function endElement($parser, $name) {
$method = $name . 'EndHandler';
if (method_exists($this, $method)) {
$this->$method();
}
}
/**
* XML handler for character data.
*
* @param resource $parser The resource handler for the xml parser
* @param string $data The name of the xml element parsed
*/
protected function characterData($parser, $data) {
$this->text .= $data;
}
}
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