bfd7fecc05
references to objects or something. I fixed it by adding elements to their parent when they are closed, not when they are opened. Also fixed indentation and stuff like that. myPrint() now returns string instead of just printing everything.
132 lines
3.6 KiB
PHP
132 lines
3.6 KiB
PHP
<?
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/**
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* This should one day become the XML->(X)HTML parser
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* Based on work by Jan Hidders and Magnus Manske
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* @package MediaWiki
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*/
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/**
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* the base class for an element
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* @package MediaWiki
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*/
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class element {
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var $name = '';
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var $attrs = array();
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var $children = array();
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function myPrint() {
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$ret = "<ul>\n";
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$ret .= "<li> <b> Name: </b> $this->name </li>\n";
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// print attributes
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$ret .= '<li> <b> Attributes: </b>';
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foreach ($this->attrs as $name => $value) {
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$ret .= "$name => $value; " ;
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}
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$ret .= " </li>\n";
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// print children
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foreach ($this->children as $child) {
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if ( is_string($child) ) {
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$ret .= "<li> $child </li>\n";
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} else {
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$ret .= $child->myPrint();
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}
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}
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$ret .= "</ul>\n";
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return $ret;
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}
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}
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$ancStack = array(); // the stack with ancestral elements
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// Three global functions needed for parsing, sorry guys
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function wgXMLstartElement($parser, $name, $attrs) {
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global $ancStack;
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$newElem = new element;
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$newElem->name = $name;
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$newElem->attrs = $attrs;
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array_push($ancStack, $newElem);
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}
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function wgXMLendElement($parser, $name) {
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global $ancStack, $rootElem;
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// pop element off stack
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$elem = array_pop ($ancStack);
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if (count ($ancStack) == 0)
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$rootElem = $elem;
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else
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// add it to its parent
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array_push ($ancStack[count($ancStack)-1]->children, $elem);
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}
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function wgXMLcharacterData($parser, $data) {
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global $ancStack;
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$data = trim ($data); // Don't add blank lines, they're no use...
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// add to parent if parent exists
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if ( $ancStack && $data != "" ) {
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array_push ($ancStack[count($ancStack)-1]->children, $data);
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}
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}
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/**
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* Here's the class that generates a nice tree
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* package parserxml
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* @package MediaWiki
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*/
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class xml2php {
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function &scanFile( $filename ) {
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global $ancStack, $rootElem;
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$ancStack = array();
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$xml_parser = xml_parser_create();
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xml_set_element_handler ($xml_parser, 'wgXMLstartElement', 'wgXMLendElement');
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xml_set_character_data_handler ($xml_parser, 'wgXMLcharacterData');
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if (!($fp = fopen($filename, 'r'))) {
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die('could not open XML input');
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}
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while ($data = fread($fp, 4096)) {
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if (!xml_parse($xml_parser, $data, feof($fp))) {
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die(sprintf("XML error: %s at line %d",
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xml_error_string(xml_get_error_code($xml_parser)),
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xml_get_current_line_number($xml_parser)));
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}
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}
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xml_parser_free($xml_parser);
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// return the remaining root element we copied in the beginning
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return $rootElem;
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}
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function scanString ( $input ) {
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global $ancStack, $rootElem;
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$ancStack = array();
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$xml_parser = xml_parser_create();
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xml_set_element_handler ($xml_parser, 'wgXMLstartElement', 'wgXMLendElement');
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xml_set_character_data_handler ($xml_parser, 'wgXMLcharacterData');
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if (!xml_parse ($xml_parser, $input, true)) {
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die (sprintf ("XML error: %s at line %d",
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xml_error_string(xml_get_error_code($xml_parser)),
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xml_get_current_line_number($xml_parser)));
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}
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xml_parser_free ($xml_parser);
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// return the remaining root element we copied in the beginning
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return $rootElem;
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}
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}
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/* Example code:
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$w = new xml2php;
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$filename = 'sample.xml';
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$result = $w->scanFile( $filename );
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print $result->myPrint();
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*/
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?>
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